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Eaton Vance Senior Income Trust

Regulatory Filings Feb 25, 2021

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N-CSRS 1 d312274dncsrs.htm EATON VANCE SENIOR INCOME TRUST Eaton Vance Senior Income Trust

Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number: 811-09013

Eaton Vance Senior Income Trust

(Exact Name of Registrant as Specified in Charter)

Two International Place, Boston, Massachusetts 02110

(Address of Principal Executive Offices)

Maureen A. Gemma

Two International Place, Boston, Massachusetts 02110

(Name and Address of Agent for Services)

(617) 482-8260

(Registrant’s Telephone Number)

June 30

Date of Fiscal Year End

December 31, 2020

Date of Reporting Period

Table of Contents

ITEM 1. Reports to Stockholders

Table of Contents

Eaton Vance

Senior Income Trust (EVF)

Semiannual Report

December 31, 2020

Table of Contents

Commodity Futures Trading Commission Registration. The Commodity Futures Trading Commission (“CFTC”) has adopted regulations that subject registered investment companies and advisers to regulation by the CFTC if a fund invests more than a prescribed level of its assets in certain CFTC-regulated instruments (including futures, certain options and swap agreements) or markets itself as providing investment exposure to such instruments. The investment adviser has claimed an exclusion from the definition of “commodity pool operator” under the Commodity Exchange Act with respect to its management of the Fund. Accordingly, neither the Fund nor the adviser with respect to the operation of the Fund is subject to CFTC regulation. Because of its management of other strategies, the Fund’s adviser is registered with the CFTC as a commodity pool operator. The adviser is also registered as a commodity trading advisor.

Fund shares are not insured by the FDIC and are not deposits or other obligations of, or guaranteed by, any depository institution. Shares are subject to investment risks, including possible loss of principal invested.

Table of Contents

Semiannual Report December 31, 2020

Eaton Vance

Senior Income Trust

Table of Contents
Performance 2
Fund Profile 3
Endnotes and Additional Disclosures 4
Financial Statements 5
Annual Meeting of Shareholders 43
Board of Trustees’ Contract Approval 44
Officers and Trustees 49
Important Notices 50

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Performance 1,2

Portfolio Managers John Redding, Andrew N. Sveen, CFA, Catherine C. McDermott, William E. Holt, CFA and Daniel P. McElaney, CFA

% Average Annual Total Returns — Fund at NAV 10/30/1998 13.18 % 3.16 % 7.68 % 5.97 %
Fund at Market Price — 24.05 6.30 8.56 5.27
S&P/LSTA Leveraged Loan Index — 8.11 % 3.12 % 5.23 % 4.32 %
% Premium/Discount to
NAV 3
–5.78 %
Distributions 4
Total Distributions per share for the period $ 0.237
Distribution Rate at NAV 6.40 %
Distribution Rate at Market Price 6.79
% Total
Leverage 5
Auction Preferred Shares (APS) 8.99 %
Borrowings 29.90

See Endnotes and Additional Disclosures in this report.

Past performance is no guarantee of future results. Returns are historical and are calculated net of management fees and other expenses by determining the percentage change in net asset value (NAV) or market price (as applicable) with all distributions reinvested in accordance with the Fund’s Dividend Reinvestment Plan. Performance at market price will differ from performance at NAV due to variations in the Fund’s market price versus NAV, which may reflect factors such as fluctuations in supply and demand for Fund shares, changes in Fund distributions, shifting market expectations for the Fund’s future returns and distribution rates, and other considerations affecting the trading prices of closed-end funds. Investment return and principal value will fluctuate so that shares, when sold, may be worth more or less than their original cost. Performance for periods less than or equal to one year is cumulative. Performance is for the stated time period only; due to market volatility, current Fund performance may be lower or higher than the quoted return. For performance as of the most recent month-end, please refer to eatonvance.com.

2

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Fund Profile

Top 10 Issuers (% of total investments) 6

TransDigm, Inc. 1.2
Tibco Software, Inc. 1.1
Hyland Software, Inc. 1.1
Asurion, LLC 1.1
Banff Merger Sub, Inc. 1.0
PetSmart, Inc. 1.0
MPH Acquisition Holdings, LLC 0.9
Spin Holdco, Inc. 0.9
Finastra USA, Inc. 0.9
Endo Luxembourg Finance Company I S.a.r.l. 0.9
Total 10.1 %

Credit Quality (% of bonds, loans and asset-backed securities) 7

Top 10 Sectors (% of total investments) 6

Electronics/Electrical 17.4
Health Care 9.3
Business Equipment and Services 9.0
Oil and Gas 5.0
Industrial Equipment 4.9
Leisure Goods/Activities/Movies 4.5
Aerospace and Defense 3.2
Insurance 3.0
Drugs 2.9
Automotive 2.8
Total 62.0 %

See Endnotes and Additional Disclosures in this report.

3

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Endnotes and Additional Disclosures

1 S&P/LSTA Leveraged Loan Index is an unmanaged index of the institutional leveraged loan market. S&P/LSTA Leveraged Loan indices are a product of S&P Dow Jones Indices LLC (“S&P DJI”) and have been licensed for use. S&P ® is a registered trademark of S&P DJI; Dow Jones ® is a registered trademark of Dow Jones Trademark Holdings LLC (“Dow Jones”); LSTA is a trademark of Loan Syndications and Trading Association, Inc. S&P DJI, Dow Jones, their respective affiliates and their third party licensors do not sponsor, endorse, sell or promote the Fund, will not have any liability with respect thereto and do not have any liability for any errors, omissions, or interruptions of the S&P Dow Jones Indices. Unless otherwise stated, index returns do not reflect the effect of any applicable sales charges, commissions, expenses, taxes or leverage, as applicable. It is not possible to invest directly in an index.

2 Performance results reflect the effects of leverage. Included in the average annual total return at NAV for the five- and ten-year periods is the impact of the 2017 and 2019 tender and repurchase of a portion of the Fund’s APS at 95% and 92% of the Fund’s APS per share liquidation preference, respectively. Had these transactions not occurred, the total return at NAV would be lower for the Fund.

3 The shares of the Fund often trade at a discount or premium to their net asset value. The discount or premium may vary over time and may be higher or lower than what is quoted in this report. For up-to-date premium/discount information, please refer to https://funds.eatonvance.com/closed-end-fund-prices.php.

4 The Distribution Rate is based on the Fund’s last regular distribution per share in the period (annualized) divided by the Fund’s NAV or market price at the end of the period. The Fund’s distributions may be comprised of amounts characterized for federal income tax purposes as qualified and non-qualified ordinary dividends, capital gains and nondividend distributions, also known as return of capital. For additional information about nondividend distributions, please refer to Eaton Vance Closed-End Fund Distribution Notices (19a) posted on our website, eatonvance.com. The Fund will determine the federal income tax character of distributions paid to a shareholder after the end of the calendar year. This is reported on the IRS form 1099-DIV and provided to the shareholder shortly after each year-end. For information about the tax character of distributions made in prior calendar years, please refer to Performance-Tax Character of Distributions on the Fund’s webpage available at eatonvance.com. The Fund’s distributions are determined by the investment adviser based on its current assessment of the Fund’s long-term return potential. Fund distributions may be affected by numerous factors including changes in Fund performance, the cost of financing for leverage, portfolio holdings, realized and projected returns, and other factors. As portfolio and market conditions change, the rate of distributions paid by the Fund could change.

5 Leverage represents the liquidation value of the Fund’s APS and borrowings outstanding as a percentage of Fund net assets applicable to common shares plus APS and borrowings outstanding. Use of leverage creates an opportunity for income, but creates risks including greater price volatility. The cost of leverage rises and falls with changes in short-term interest rates. The Fund may be required to maintain prescribed asset coverage for its leverage and may be required to reduce its leverage at an inopportune time.

6 Excludes cash and cash equivalents.

7 For purposes of the Fund’s rating restrictions, ratings are categorized using S&P Global Ratings (“S&P”). Ratings, which are subject to change, apply to the creditworthiness of the issuers of the underlying securities and not to the Fund or its shares. Credit ratings measure the quality of a bond based on the issuer’s creditworthiness, with ratings ranging from AAA, being the highest, to D, being the lowest based on S&P’s measures. Ratings of BBB or higher by S&P are considered to be investment-grade quality. Credit ratings are based largely on the ratings agency’s analysis at the time of rating. The rating assigned to any particular security is not necessarily a reflection of the issuer’s current financial condition and does not necessarily reflect its assessment of the volatility of a security’s market value or of the liquidity of an investment in the security. Holdings designated as “Not Rated” (if any) are not rated by S&P.

Fund profile subject to change due to active management.

4

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited)

Asset-Backed Securities — 7.9% — Security Principal Amount (000’s omitted) Value
Allegany Park CLO, Ltd.
Series 2019-1A, Class E, 6.993%, (3 mo. USD LIBOR + 6.78%),
1/20/33 (1)(2) $ 450 $ 451,238
Ares LII CLO, Ltd.
Series 2019-52A, Class E, 6.766%, (3 mo. USD LIBOR + 6.55%),
4/22/31 (1)(2) 500 500,398
Ares XXXIIR CLO, Ltd.
Series 2014-32RA, Class D, 6.071%, (3 mo. USD LIBOR + 5.85%),
5/15/30 (1)(2) 1,000 963,590
Ares XXXIV CLO, Ltd.
Series 2015-2A, Class ER, 7.068%, (3 mo. USD LIBOR + 6.85%),
4/17/33 (1)(2) 550 548,324
Bardot CLO, Ltd.
Series 2019-2A, Class E, 7.166%, (3 mo. USD LIBOR + 6.95%),
10/22/32 (1)(2) 500 505,549
Benefit Street Partners CLO XIX, Ltd.
Series 2019-19A, Class E, 7.257%, (3 mo. USD LIBOR + 7.02%),
1/15/33 (1)(2) 750 751,178
Benefit Street Partners CLO XVII, Ltd.
Series 2019-17A, Class E, 6.837%, (3 mo. USD LIBOR + 6.60%),
7/15/32 (1)(2) 500 494,733
Benefit Street Partners CLO XVIII, Ltd.
Series 2019-18A, Class E, 7.137%, (3 mo. USD LIBOR + 6.90%),
10/15/32 (1)(2) 500 498,551
BlueMountain CLO XXV, Ltd.
Series 2019-25A, Class E, 6.937%, (3 mo. USD LIBOR + 6.70%),
7/15/32 (1)(2) 500 500,997
BlueMountain CLO XXVI, Ltd.
Series 2019-26A, Class E, 7.918%, (3 mo. USD LIBOR + 7.70%),
10/20/32 (1)(2) 1,000 1,007,374
Canyon Capital CLO, Ltd.
Series 2019-2A, Class E, 7.387%, (3 mo. USD LIBOR + 7.15%),
10/15/32 (1)(2) 400 400,736
Carlyle Global Market Strategies CLO, Ltd.
Series 2012-3A, Class DR2, 6.724%, (3 mo. USD LIBOR + 6.50%),
1/14/32 (1)(2) 600 559,562
Series 2015-5A, Class DR, 6.918%, (3 mo. USD LIBOR + 6.70%),
1/20/32 (1)(2) 500 466,188
Cedar Funding X CLO, Ltd.
Series 2019-10A, Class E, 7.218%, (3 mo. USD LIBOR + 7.00%),
10/20/32 (1)(2) 500 501,022
Dryden 40 Senior Loan Fund
Series 2015-40A, Class ER, 5.971%, (3 mo. USD LIBOR + 5.75%),
8/15/31 (1)(2) 500 477,280
Fort Washington CLO, Ltd.
Series 2019-1A, Class E, 7.468%, (3 mo. USD LIBOR + 7.25%),
10/20/32 (1)(2) 500 501,240
Security Principal Amount (000’s omitted) Value
Galaxy XV CLO, Ltd.
Series 2013-15A, Class ER, 6.882%, (3 mo. USD LIBOR + 6.65%),
10/15/30 (1)(2) $ 500 $ 476,509
Galaxy XXI CLO, Ltd.
Series 2015-21A, Class ER, 5.468%, (3 mo. USD LIBOR + 5.25%),
4/20/31 (1)(2) 500 461,972
Golub Capital Partners CLO 23M, Ltd.
Series 2015-23A, Class ER, 5.968%, (3 mo. USD LIBOR + 5.75%),
1/20/31 (1)(2) 600 531,991
Harriman Park CLO, Ltd.
Series 2020-1A, Class E, 7.128%, (3 mo. USD LIBOR + 6.91%),
4/20/31 (1)(2) 800 801,656
Kayne CLO 5, Ltd.
Series 2019-5A, Class E, 6.915%, (3 mo. USD LIBOR + 6.70%),
7/24/32 (1)(2) 500 501,227
Kayne CLO 7, Ltd.
Series 2020-7A, Class E, 6.718%, (3 mo. USD LIBOR + 6.50%),
4/17/33 (1)(2) 575 575,403
Madison Park Funding XXXVI, Ltd.
Series 2019-36A, Class E, 7.487%, (3 mo. USD LIBOR + 7.25%),
1/15/33 (1)(2) 250 251,380
Madison Park Funding XXXVII, Ltd.
Series 2019-37A, Class E, 6.787%, (3 mo. USD LIBOR + 6.55%),
7/15/32 (1)(2) 500 500,522
Neuberger Berman Loan Advisers CLO 31, Ltd.
Series 2019-31A, Class E, 6.968%, (3 mo. USD LIBOR + 6.75%),
4/20/31 (1)(2) 500 500,675
Neuberger Berman Loan Advisers CLO 33, Ltd.
Series 2019-33A, Class E, 7.03%, (3 mo. USD LIBOR + 6.80%),
10/16/32 (1)(2) 500 501,551
Oaktree CLO, Ltd.
Series 2019-3A, Class E, 6.988%, (3 mo. USD LIBOR + 6.77%),
7/20/31 (1)(2) 750 719,654
Palmer Square CLO, Ltd.
Series 2013-2A, Class DRR, 6.068%, (3 mo. USD LIBOR + 5.85%),
10/17/31 (1)(2) 450 439,360
Series 2019-1A, Class D, 7.221%, (3 mo. USD LIBOR + 7.00%),
11/14/32 (1)(2) 500 503,207
Regatta XII Funding, Ltd.
Series 2019-1A, Class E, 7.087%, (3 mo. USD LIBOR + 6.85%),
10/15/32 (1)(2) 300 299,934
Regatta XIV Funding, Ltd.
Series 2018-3A, Class E, 6.165%, (3 mo. USD LIBOR + 5.95%),
10/25/31 (1)(2) 300 291,146
Regatta XVI Funding, Ltd.
Series 2019-2A, Class E, 7.237%, (3 mo. USD LIBOR + 7.00%),
1/15/33 (1)(2) 500 500,837
Southwick Park CLO, LLC
Series 2019-4A, Class E, 6.918%, (3 mo. USD LIBOR + 6.70%),
7/20/32 (1)(2) 1,000 1,002,388

5 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Security Principal Amount (000’s omitted) Value
Vibrant CLO X, Ltd.
Series 2018-10A, Class D, 6.408%, (3 mo. USD LIBOR + 6.19%), 10/20/31 (1)(2) $ 375 $ 323,394
Vibrant CLO XI, Ltd.
Series 2019-11A, Class D, 6.988%, (3 mo. USD LIBOR + 6.77%), 7/20/32 (1)(2) 500 462,982
Voya CLO, Ltd.
Series 2013-1A, Class DR, 6.717%, (3 mo. USD LIBOR + 6.48%), 10/15/30 (1)(2) 1,000 891,029
Wellfleet CLO, Ltd.
Series 2020-1A, Class D, 7.477%, (3 mo. USD LIBOR + 7.24%), 4/15/33 (1)(2) 550 553,634
Total Asset-Backed Securities (identified cost
$20,432,319) $ 20,218,411
Closed-End Funds — 1.7%
Security Shares Value
BlackRock Floating Rate Income Strategies Fund, Inc. 49,400 $ 598,234
Invesco Senior Income Trust 178,510 710,470
Nuveen Credit Strategies Income Fund 180,539 1,142,812
Nuveen Floating Rate Income Fund 73,198 639,750
Nuveen Floating Rate Income Opportunity Fund 51,054 442,128
Voya Prime Rate Trust 196,084 876,495
Total Closed-End Funds (identified cost
$5,726,072) $ 4,409,889
Common Stocks — 2.1%
Security Shares Value
Aerospace and Defense — 0.2%
IAP Global Services,
LLC (3)(4)(5) 29 $ 426,115
$ 426,115
Automotive — 0.0% (6)
Dayco Products,
LLC (4)(5) 10,159 $ 55,875
$ 55,875
Business Equipment and Services —
0.0% (6)
Crossmark Holdings,
Inc. (4)(5) 1,731 $ 99,532
$ 99,532
Chemicals and Plastics — 0.1%
Hexion Holdings Corp., Class
B (4)(5) 18,444 $ 225,939
$ 225,939
Security Value
Containers and Glass Products —
0.0% (6)
LG Newco Holdco, Inc., Class A (4)(5) 11,203 $ 28,008
$ 28,008
Electronics / Electrical — 0.4%
Answers Corp. (3)(4)(5) 46,839 $ 27,167
Software Luxembourg Holding S.A., Class A (4)(5) 6,221 1,057,570
$ 1,084,737
Health Care — 0.2%
Akorn Holding Company, LLC, Class A (4)(5) 35,656 $ 476,899
$ 476,899
Nonferrous Metals / Minerals —
0.0% (6)
ACNR Holdings, Inc., Class
A (4)(5) 1,552 $ 10,864
$ 10,864
Oil and Gas — 0.2%
AFG Holdings, Inc. (3)(4)(5) 13,348 $ 248,139
Fieldwood Energy, Inc. (4)(5) 9,594 959
McDermott International, Ltd. (4)(5) 71,257 57,718
Nine Point Energy Holdings, Inc. (3)(5)(7) 325 0
RDV Resources, Inc., Class A (3)(4)(5) 14,312 0
Samson Resources II, LLC, Class A (3)(4)(5) 22,051 143,332
Sunrise Oil & Gas, Inc., Class A (4)(5) 5,690 1,707
$ 451,855
Publishing — 0.6%
ION Media Networks, Inc. (3)(4)(5) 2,155 $ 1,431,200
Tweddle Group,
Inc. (3)(4)(5) 889 1,636
$ 1,432,836
Radio and Television — 0.2%
Clear Channel Outdoor Holdings, Inc. (4)(5) 42,539 $ 70,189
Cumulus Media, Inc., Class A (4)(5) 18,865 164,503
iHeartMedia, Inc., Class
A (4)(5) 18,090 234,808
$ 469,500
Retailers (Except Food and Drug) — 0.1%
David’s Bridal, LLC (3)(4)(5) 11,238 $ 77,430
Phillips Pet Holding
Corp. (3)(4)(5) 269 116,011
$ 193,441

6 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Security Shares Value
Utilities — 0.1%
Longview Intermediate Holdings, LLC, Class A (3)(4)(5) 42,155 $ 340,190
$ 340,190
Total Common Stocks (identified cost $5,258,918) $ 5,295,791
Convertible Preferred Stocks —
0.0% (6)
Security Shares Value
Containers and Glass Products —
0.0% (6)
LG Newco Holdco, Inc., Series A, 13.00% (4)(5) 1,694 $ 93,180
$ 93,180
Oil and Gas — 0.0%
Nine Point Energy Holdings, Inc., Series A, 12.00% (3)(5)(7)(8) 5 $ 0
$ 0
Total Convertible Preferred Stocks (identified cost
$93,944) $ 93,180
Corporate Bonds & Notes — 5.2%
Security Principal Amount (000’s omitted) Value
Aerospace and Defense — 0.1%
TransDigm, Inc.
6.50%, 7/15/24 $ 223 $ 227,369
7.50%, 3/15/27 120 128,303
$ 355,672
Automotive — 0.2%
Clarios Global, L.P./Clarios US Finance Co.
8.50%, 5/15/27 (1) $ 219 $ 238,285
Ford Motor Co.
9.00%, 4/22/25 70 86,109
4.75%, 1/15/43 50 51,063
Navistar International Corp.
6.625%,
11/1/25 (1) 141 147,895
$ 523,352
Building and Development — 0.1%
Builders FirstSource, Inc.
5.00%, 3/1/30 (1) $ 54 $ 58,118
Security Principal Amount (000’s omitted) Value
Building and Development (continued)
Hillman Group, Inc. (The)
6.375%, 7/15/22 (1) $ 12 $ 11,952
Standard Industries, Inc.
5.00%,
2/15/27 (1) 271 283,703
$ 353,773
Business Equipment and Services — 0.6%
EIG Investors Corp.
10.875%, 2/1/24 $ 267 $ 277,046
GEMS MENASA Cayman, Ltd./GEMS Education Delaware, LLC
7.125%, 7/31/26 (1) 200 210,500
Prime Security Services Borrower, LLC/Prime Finance, Inc.
5.25%, 4/15/24 (1) 325 347,344
5.75%, 4/15/26 (1) 325 356,281
ServiceMaster Co., LLC (The)
7.45%, 8/15/27 187 218,287
$ 1,409,458
Cable and Satellite Television — 0.3%
Altice France S.A.
8.125%, 2/1/27 (1) $ 212 $ 233,975
CCO Holdings, LLC/CCO Holdings Capital Corp.
5.75%, 2/15/26 (1) 13 13,430
4.25%, 2/1/31 (1) 102 107,621
CSC Holdings, LLC
5.25%, 6/1/24 5 5,421
5.75%, 1/15/30 (1) 254 278,766
4.125%, 12/1/30 (1) 200 209,320
DISH DBS Corp.
6.75%, 6/1/21 3 3,064
TEGNA, Inc.
5.00%, 9/15/29 24 25,377
$ 876,974
Conglomerates — 0.0% (6)
Spectrum Brands, Inc.
5.75%, 7/15/25 $ 30 $ 31,015
5.00%,
10/1/29 (1) 9 9,688
$ 40,703

7 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Security Principal Amount (000’s omitted) Value
Containers and Glass Products — 0.1%
Ardagh Packaging Finance PLC/Ardagh Holdings USA, Inc.
4.125%,
8/15/26 (1) $ 200 $ 209,250
$ 209,250
Distribution & Wholesale —
0.0% (6)
Performance Food Group, Inc.
5.50%,
10/15/27 (1) $ 30 $ 31,705
$ 31,705
Drugs — 0.2%
AdaptHealth, LLC
6.125%, 8/1/28 (1) $ 55 $ 59,194
Bausch Health Americas, Inc.
8.50%, 1/31/27 (1) 59 65,701
Bausch Health Companies, Inc.
7.00%,
1/15/28 (1) 327 359,991
$ 484,886
Ecological Services and Equipment — 0.1%
GFL Environmental, Inc.
8.50%,
5/1/27 (1) $ 250 $ 277,969
$ 277,969
Electronics / Electrical —
0.0% (6)
Sensata Technologies, Inc.
4.375%,
2/15/30 (1) $ 21 $ 22,641
$ 22,641
Financial Intermediaries — 0.2%
Ford Motor Credit Co., LLC
5.125%, 6/16/25 $ 219 $ 238,392
Icahn Enterprises, L.P./Icahn Enterprises Finance Corp.
6.25%, 2/1/22 7 7,033
6.25%, 5/15/26 271 287,596
JPMorgan Chase & Co.
Series S, 6.75% to
2/1/24 (9)(10) 35 39,306
$ 572,327
Food Products — 0.3%
Del Monte Foods, Inc.
11.875%, 5/15/25 (1) $ 500 $ 568,437
Security Principal Amount (000’s omitted) Value
Food Products (continued)
JBS USA LUX S.A./JBS USA Food Co./JBS USA Finance, Inc.
5.50%,
1/15/30 (1) $ 68 $ 78,218
$ 646,655
Food / Drug Retailers — 0.2%
Fresh Market, Inc. (The)
9.75%,
5/1/23 (1) $ 575 $ 593,455
$ 593,455
Health Care — 0.3%
Centene Corp.
3.375%, 2/15/30 $ 51 $ 53,736
3.00%, 10/15/30 219 232,392
HCA, Inc.
5.875%, 2/15/26 7 8,059
Molina Healthcare, Inc.
3.875%, 11/15/30 (1) 110 118,250
MPH Acquisition Holdings, LLC
5.75%, 11/1/28 (1) 121 118,429
Syneos Health, Inc.
3.625%, 1/15/29 (1) 76 76,353
Tenet Healthcare Corp.
6.75%, 6/15/23 109 117,371
$ 724,590
Insurance — 0.2%
AssuredPartners, Inc.
7.00%,
8/15/25 (1) $ 417 $ 433,499
$ 433,499
Internet Software & Services — 0.1%
Netflix, Inc.
5.375%,
11/15/29 (1) $ 105 $ 123,900
$ 123,900
Leisure Goods / Activities / Movies — 0.2%
Carnival Corp.
6.65%, 1/15/28 $ 51 $ 53,008
Viking Cruises, Ltd.
6.25%, 5/15/25 (1) 20 19,673
5.875%,
9/15/27 (1) 373 365,485
$ 438,166

8 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Security Principal Amount (000’s omitted) Value
Lodging and Casinos — 0.3%
Caesars Resort Collection, LLC/CRC Finco, Inc.
5.25%, 10/15/25 (1) $ 271 $ 274,226
ESH Hospitality, Inc.
5.25%, 5/1/25 (1) 9 9,238
MGM Growth Properties Operating Partnership, L.P./MGP Finance Co-Issuer, Inc.
5.625%, 5/1/24 5 5,440
MGM Resorts International
7.75%, 3/15/22 10 10,669
Stars Group Holdings B.V./Stars Group US Co-Borrower, LLC
7.00%, 7/15/26 (1) 417 439,675
Wynn Las Vegas, LLC/Wynn Las Vegas Capital Corp.
5.25%,
5/15/27 (1) 109 112,556
$ 851,804
Metals / Mining — 0.2%
Cleveland-Cliffs, Inc.
6.75%,
3/15/26 (1) $ 443 $ 478,994
$ 478,994
Nonferrous Metals / Minerals —
0.0% (6)
New Gold, Inc.
6.375%,
5/15/25 (1) $ 22 $ 23,031
$ 23,031
Oil and Gas — 0.4%
Centennial Resource Production, LLC
6.875%, 4/1/27 (1) $ 417 $ 300,409
Energy Transfer Operating, L.P.
5.875%, 1/15/24 15 16,867
Neptune Energy Bondco PLC
6.625%, 5/15/25 (1) 463 459,190
Occidental Petroleum Corp.
6.625%, 9/1/30 102 110,899
Ovintiv Exploration, Inc.
5.625%, 7/1/24 42 45,112
Seven Generations Energy, Ltd.
6.75%, 5/1/23 (1) 10 10,144
6.875%, 6/30/23 (1) 2 2,032
Tervita Corp.
11.00%,
12/1/25 (1) 102 110,090
$ 1,054,743
Security Principal Amount (000’s omitted) Value
Packaging & Containers — 0.1%
ARD Finance S.A.
6.50%, (6.50% cash or 7.25% PIK), 6/30/27 (1)(8) $ 200 $ 213,750
$ 213,750
Radio and Television — 0.2%
Diamond Sports Group, LLC/Diamond Sports Finance Co.
5.375%, 8/15/26 (1) $ 53 $ 43,162
iHeartCommunications, Inc.
6.375%, 5/1/26 102 109,659
8.375%, 5/1/27 185 198,254
Nielsen Co. Luxembourg S.a.r.l. (The)
5.50%, 10/1/21 (1) 3 3,016
Sirius XM Radio, Inc.
4.125%, 7/1/30 (1) 39 41,559
Terrier Media Buyer, Inc.
8.875%,
12/15/27 (1) 144 159,030
$ 554,680
Real Estate Investment Trusts (REITs) — 0.1%
Service Properties Trust
3.95%, 1/15/28 $ 204 $ 197,497
$ 197,497
Steel — 0.3%
Allegheny Technologies, Inc.
7.875%, 8/15/23 $ 463 $ 507,885
Infrabuild Australia Pty, Ltd.
12.00%,
10/1/24 (1) 219 222,559
$ 730,444
Surface Transport — 0.0% (6)
XPO Logistics, Inc.
6.50%,
6/15/22 (1) $ 22 $ 22,113
$ 22,113
Telecommunications — 0.3%
CenturyLink, Inc.
6.75%, 12/1/23 $ 15 $ 16,734
Connect Finco S.a.r.l./Connect US Finco, LLC
6.75%, 10/1/26 (1) 200 215,714

9 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Security Principal Amount (000’s omitted) Value
Telecommunications (continued)
Digicel Holdings Bermuda, Ltd./Digicel International Finance, Ltd.
8.75%, 5/25/24 (1) $ 275 $ 289,781
Level 3 Financing, Inc.
5.375%, 1/15/24 10 10,115
Sprint Communications, Inc.
6.00%, 11/15/22 3 3,251
Sprint Corp.
7.25%, 9/15/21 110 114,593
7.625%, 2/15/25 100 119,771
T-Mobile USA, Inc.
6.50%, 1/15/26 45 46,631
$ 816,590
Utilities — 0.1%
Vistra Operations Co., LLC
5.00%, 7/31/27 (1) $ 93 $ 98,673
4.30%,
7/15/29 (1) 15 17,031
$ 115,704
Total Corporate Bonds & Notes (identified cost
$12,745,213) $ 13,178,325
Preferred Stocks — 0.1%
Security Shares Value
Financial Services —
0.0% (6)
DBI Investors, Inc., Series A-1 (3)(4)(5) 531 $ 42,655
$ 42,655
Nonferrous Metals / Minerals —
0.0% (6)
ACNR Holdings, Inc.,
15.00% (4)(5) (8) 733 $ 34,634
$ 34,634
Retailers (Except Food and Drug) — 0.1%
David’s Bridal, LLC, Series A, 8.00% (3)(4)(5) (8) 313 $ 25,040
David’s Bridal, LLC, Series B, 10.00% (3)(4)(5) (8) 1,274 103,143
$ 128,183
Total Preferred Stocks (identified cost $103,143) $ 205,472

| Senior Floating-Rate Loans —
143.5% (11) — Borrower/Tranche Description | Principal Amount* (000’s omitted) | | Value |
| --- | --- | --- | --- |
| Aerospace and Defense — 4.9% | | | |
| Aernnova Aerospace S.A.U. | | | |
| Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing February 22, 2027 | EUR | 179 | $ 203,063 |
| Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing February 26, 2027 | EUR | 696 | 791,945 |
| AI Convoy (Luxembourg) S.a.r.l. | | | |
| Term Loan, 4.50%, (USD LIBOR + 3.50%, Floor 1.00%), Maturing January 17, 2027 (12) | | 1,811 | 1,813,011 |
| Dynasty Acquisition Co., Inc. | | | |
| Term Loan, 3.75%, (3 mo. USD LIBOR + 3.50%), Maturing April 6, 2026 | | 789 | 754,653 |
| Term Loan, 3.75%, (3 mo. USD LIBOR + 3.50%), Maturing April 6, 2026 | | 1,467 | 1,403,655 |
| IAP Worldwide Services, Inc. | | | |
| Revolving Loan, 1.38%, (3 mo. USD LIBOR + 5.50%, Floor 1.50%), Maturing July 19, 2021 (13) | | 161 | 159,278 |
| Term Loan - Second Lien, 8.00%, (3 mo. USD LIBOR + 6.50%, Floor 1.50%), Maturing July 18, 2021 (3) | | 208 | 165,609 |
| Spirit Aerosystems, Inc. | | | |
| Term Loan, 6.00%, (1 mo. USD LIBOR + 5.25%, Floor 0.75%), Maturing January 30, 2025 | | 200 | 202,625 |
| TransDigm, Inc. | | | |
| Term Loan, 2.40%, (1 mo. USD LIBOR + 2.25%), Maturing August 22, 2024 | | 1,192 | 1,172,051 |
| Term Loan, 2.40%, (1 mo. USD LIBOR + 2.25%), Maturing December 9, 2025 | | 3,575 | 3,512,101 |
| WP CPP Holdings, LLC | | | |
| Term Loan, 4.75%, (3 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing April 30,
2025 | | 2,395 | 2,250,763 |
| | | | $ 12,428,754 |
| Air Transport — 1.7% | | | |
| Delta Air Lines, Inc. | | | |
| Term Loan, 5.75%, (3 mo. USD LIBOR + 4.75%, Floor 1.00%), Maturing April 29, 2023 | | 2,463 | $ 2,506,876 |
| JetBlue Airways Corporation | | | |
| Term Loan, 6.25%, (3 mo. USD LIBOR + 5.25%, Floor 1.00%), Maturing June 17, 2024 | | 488 | 502,821 |
| Mileage Plus Holdings, LLC | | | |
| Term Loan, 6.25%, (3 mo. USD LIBOR + 5.25%, Floor 1.00%), Maturing June 25, 2027 | | 350 | 365,337 |
| SkyMiles IP, Ltd. | | | |
| Term Loan, 4.75%, (3 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing October 20,
2027 | | 1,000 | 1,038,875 |
| | | | $ 4,413,909 |

10 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Automotive — 4.4%
Adient US, LLC
Term Loan, 4.41%, (USD LIBOR + 4.25%), Maturing May 6,
2024 (12) 1,905 $ 1,908,764
Autokiniton US Holdings, Inc.
Term Loan, 6.52%, (1 mo. USD LIBOR + 6.38%), Maturing May 22, 2025 366 363,797
Bright Bidco B.V.
Term Loan, 4.50%, (6 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing June 30, 2024 724 422,472
Chassix, Inc.
Term Loan, 6.50%, (USD LIBOR + 5.50%, Floor 1.00%), Maturing November 15, 2023 (12) 631 605,280
Dayco Products, LLC
Term Loan, 4.48%, (3 mo. USD LIBOR + 4.25%), Maturing May 19, 2023 483 373,133
Garrett LX III S.a.r.l.
Term Loan, 3.75%, (1 mo. EURIBOR + 3.75%), Maturing September 27, 2025 EUR 184 219,965
Term Loan, 5.75%, (USD Prime + 2.50%), Maturing September 27, 2025 123 121,124
Garrett Motion, Inc.
DIP Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing March 15, 2021 72 72,309
Les Schwab Tire Centers
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), Maturing November 2, 2027 1,300 1,301,625
Tenneco, Inc.
Term Loan, 3.15%, (1 mo. USD LIBOR + 3.00%), Maturing October 1, 2025 3,503 3,431,432
TI Group Automotive Systems, LLC
Term Loan, 4.00%, (3 mo. USD LIBOR + 3.75%), Maturing December 16, 2024 200 199,916
Term Loan, 4.50%, (3 mo. EURIBOR + 3.75%, Floor 0.75%), Maturing December 16,
2024 EUR 1,831 2,259,349
$ 11,279,166
Beverage and Tobacco — 0.2%
Arterra Wines Canada, Inc.
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), Maturing November 24,
2027 500 $ 503,281
$ 503,281
Brokerage / Securities Dealers / Investment Houses — 1.4%
Advisor Group, Inc.
Term Loan, 5.15%, (1 mo. USD LIBOR + 5.00%), Maturing July 31, 2026 3,549 $ 3,533,166
$ 3,533,166
Borrower/Tranche Description Value
Building and Development — 4.2%
ACProducts, Inc.
Term Loan, 7.50%, (6 mo. USD LIBOR + 6.50%, Floor 1.00%), Maturing August 18, 2025 196 $ 202,015
Advanced Drainage Systems, Inc.
Term Loan, 2.44%, (1 mo. USD LIBOR + 2.25%), Maturing July 31, 2026 95 95,047
American Residential Services, LLC
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), Maturing October 15, 2027 275 274,828
APi Group DE, Inc.
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing October 1, 2026 150 150,094
Beacon Roofing Supply, Inc.
Term Loan, 2.40%, (1 mo. USD LIBOR + 2.25%), Maturing January 2, 2025 267 266,045
Brookfield Property REIT, Inc.
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing August 27, 2025 1,432 1,363,512
Core & Main L.P.
Term Loan, 3.75%, (3 mo. USD LIBOR + 2.75%, Floor 1.00%), Maturing August 1, 2024 511 510,613
Cornerstone Building Brands, Inc.
Term Loan, 3.90%, (1 mo. USD LIBOR + 3.75%), Maturing April 12, 2025 342 342,105
CP Atlas Buyer, Inc.
Term Loan, 5.25%, (3 mo. USD LIBOR + 4.50%, Floor 0.75%), Maturing November 23, 2027 144 144,199
Term Loan, 5.25%, (3 mo. USD LIBOR + 4.50%, Floor 0.75%), Maturing November 23, 2027 431 432,598
CPG International, Inc.
Term Loan, 4.75%, (12 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing May 5, 2024 525 525,847
LSF11 Skyscraper Holdco S.a.r.l.
Term Loan, 4.50%, (3 mo. EURIBOR + 4.50%), Maturing September 29, 2027 EUR 250 306,558
Term Loan, 4.50%, (3 mo. EURIBOR + 4.50%), Maturing September 29, 2027 EUR 475 582,460
Term Loan, 5.74%, (3 mo. USD LIBOR + 5.50%), Maturing September 29, 2027 297 297,489
MI Windows and Doors, LLC
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing December 15, 2027 225 225,844
Northstar Group Services, Inc.
Term Loan, 6.50%, (3 mo. USD LIBOR + 5.50%, Floor 1.00%), Maturing November 9, 2026 625 620,312
RE/MAX International, Inc.
Term Loan, 3.50%, (3 mo. USD LIBOR + 2.75%, Floor 0.75%), Maturing December 15, 2023 882 882,160

11 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Building and Development (continued)
Werner FinCo L.P.
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing July 24, 2024 532 $ 532,489
White Cap Buyer, LLC
Term Loan, 4.50%, (6 mo. USD LIBOR + 4.00%, Floor 0.50%), Maturing October 19, 2027 1,075 1,076,344
WireCo WorldGroup, Inc.
Term Loan, 6.00%, (6 mo. USD LIBOR + 5.00%, Floor 1.00%), Maturing September 30, 2023 1,404 1,346,219
Term Loan - Second Lien, 10.00%, (6 mo. USD
LIBOR + 9.00%, Floor 1.00%), Maturing September 30, 2024 575 477,250
$ 10,654,028
Business Equipment and Services — 14.2%
Adevinta ASA
Term Loan, Maturing October 13, 2027 (14) 150 $ 150,281
Term Loan, Maturing October 13, 2027 (14) EUR 575 705,961
Adtalem Global Education, Inc.
Term Loan, 3.15%, (1 mo. USD LIBOR + 3.00%), Maturing April 11, 2025 171 169,559
Airbnb, Inc.
Term Loan, 8.50%, (3 mo. USD LIBOR + 7.50%, Floor 1.00%), Maturing April 17, 2025 373 404,841
Allied Universal Holdco, LLC
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing July 10, 2026 668 666,699
AppLovin Corporation
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing August 15, 2025 1,618 1,616,281
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), Maturing August 15, 2025 298 297,704
Asplundh Tree Expert, LLC
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing September 7, 2027 549 550,976
Belfor Holdings, Inc.
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), Maturing April 6, 2026 246 247,481
BidFair MergeRight, Inc.
Term Loan, 6.50%, (1 mo. USD LIBOR + 5.50%, Floor 1.00%), Maturing January 15, 2027 297 298,765
Bracket Intermediate Holding Corp.
Term Loan, 4.48%, (3 mo. USD LIBOR + 4.25%), Maturing September 5, 2025 415 411,283
Brand Energy & Infrastructure Services, Inc.
Term Loan, 5.25%, (3 mo. USD LIBOR + 4.25%, Floor 1.00%), Maturing June 21, 2024 1,730 1,691,964
Borrower/Tranche Description Value
Business Equipment and Services (continued)
Camelot U.S. Acquisition 1 Co.
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing October 30, 2026 550 $ 549,886
Cardtronics USA, Inc.
Term Loan, 5.00%, (1 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing June 29, 2027 274 274,241
CM Acquisition Co.
Term Loan, 11.00%, (3 mo. USD LIBOR + 10.00%, Floor 1.00%), Maturing July 26, 2023 92 85,193
Deerfield Dakota Holding, LLC
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing April 9, 2027 1,741 1,746,691
EAB Global, Inc.
Term Loan, 4.75%, (USD LIBOR + 3.75%, Floor 1.00%), Maturing November 15, 2024 (12) 608 605,533
EIG Investors Corp.
Term Loan, 4.75%, (3 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing February 9, 2023 1,314 1,314,589
Garda World Security Corporation
Term Loan, 4.99%, (3 mo. USD LIBOR + 4.75%), Maturing October 30, 2026 1,495 1,499,560
Greeneden U.S. Holdings II, LLC
Term Loan, 4.75%, (1 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing December 1, 2027 425 426,527
IG Investment Holdings, LLC
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing May 23, 2025 1,849 1,847,905
Illuminate Buyer, LLC
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), Maturing June 30, 2027 374 374,764
Intrado Corp.
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing October 10, 2024 2,131 2,058,063
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing October 10, 2024 509 494,927
IRI Holdings, Inc.
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing December 1, 2025 2,940 2,918,258
Ivanti Software, Inc.
Term Loan, 5.75%, (1 mo. USD LIBOR + 4.75%, Floor 1.00%), Maturing December 1, 2027 1,325 1,325,413
KUEHG Corp.
Term Loan, 4.75%, (3 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing February 21, 2025 1,411 1,345,649
Term Loan - Second Lien, 9.25%, (3 mo. USD LIBOR + 8.25%, Floor 1.00%),
Maturing August 22, 2025 200 188,000

12 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Business Equipment and Services (continued)
LGC Group Holdings, Ltd.
Term Loan, 3.25%, (1 mo. EURIBOR + 3.25%), Maturing April 21, 2027 EUR 225 $ 271,894
Loire Finco Luxembourg S.a.r.l.
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing April 21, 2027 149 147,199
Monitronics International, Inc.
Term Loan, 7.75%, (1 mo. USD LIBOR + 6.50%, Floor 1.25%), Maturing March 29, 2024 737 657,829
Packaging Coordinators Midco, Inc.
Term Loan, 4.50%, (6 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing September 25, 2027 575 576,437
PGX Holdings, Inc.
Term Loan, 10.50%, (12 mo. USD LIBOR + 9.50%, Floor 1.00%), 6.25% cash, 4.25% PIK, Maturing September 29, 2023 423 404,373
Prime Security Services Borrower, LLC
Term Loan, 4.25%, (USD LIBOR + 3.25%, Floor 1.00%), Maturing September 23, 2026 (12) 1,010 1,013,628
Rockwood Service Corporation
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing January 23, 2027 1,716 1,716,866
Sabre GLBL, Inc.
Term Loan, 2.15%, (1 mo. USD LIBOR + 2.00%), Maturing February 22, 2024 461 451,486
Term Loan, Maturing December 10,
2027 (14) 200 200,750
SMG US Midco 2, Inc.
Term Loan, 2.69%, (USD LIBOR + 2.50%), Maturing January 23,
2025 (12) 122 114,897
Spin Holdco, Inc.
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing November 14, 2022 3,903 3,888,287
Vestcom Parent Holdings, Inc.
Term Loan, 5.00%, (1 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing December 19, 2023 1,483 1,459,272
WASH Multifamily Laundry Systems, LLC
Term Loan, 4.25%, (1 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing May 14, 2022 636 632,270
Zephyr Bidco Limited
Term Loan, 4.52%, (1 mo. GBP LIBOR + 4.50%), Maturing July 23, 2025 GBP 350 471,147
$ 36,273,329
Cable and Satellite Television — 2.1%
Altice France S.A.
Term Loan, 3.85%, (1 mo. USD LIBOR + 3.69%), Maturing January 31, 2026 342 $ 339,928
Borrower/Tranche Description Value
Cable and Satellite Television (continued)
Altice France S.A. (continued)
Term Loan, 4.24%, (3 mo. USD LIBOR + 4.00%), Maturing August 14, 2026 689 $ 687,795
Numericable Group S.A.
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing July 31, 2025 EUR 217 261,248
UPC Broadband Holding B.V.
Term Loan, 3.50%, (2 mo. EURIBOR + 3.50%), Maturing January 31, 2029 EUR 400 491,147
Term Loan, 3.50%, (2 mo. EURIBOR + 3.50%), Maturing January 31, 2029 EUR 400 491,147
Term Loan, 3.67%, (2 mo. USD LIBOR + 3.50%), Maturing January 31, 2029 913 914,553
Term Loan, 3.67%, (2 mo. USD LIBOR + 3.50%), Maturing January 31, 2029 913 914,553
Virgin Media Bristol, LLC
Term Loan, Maturing January
31, 2029 (14) 575 575,179
Virgin Media SFA Finance Limited
Term Loan, 2.50%, (6 mo. EURIBOR + 2.50%), Maturing January 31, 2029 EUR 575 702,625
$ 5,378,175
Chemicals and Plastics — 3.5%
Alpha 3 B.V.
Term Loan, 4.00%, (3 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing January 31, 2024 635 $ 633,868
Aruba Investments, Inc.
Term Loan, 4.00%, (6 mo. EURIBOR + 4.00%), Maturing October 28, 2027 EUR 250 305,412
Term Loan, 4.75%, (6 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing November 24, 2027 350 350,000
Charter NEX US, Inc.
Term Loan, 5.00%, (1 mo. USD LIBOR + 4.25%, Floor 0.75%), Maturing December 1, 2027 225 226,430
Chemours Company (The)
Term Loan, 2.50%, (3 mo. EURIBOR + 2.00%, Floor 0.50%), Maturing April 3, 2025 EUR 282 342,455
Emerald Performance Materials, LLC
Term Loan, 5.00%, (1 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing August 12, 2025 171 172,320
Ferro Corporation
Term Loan, 2.50%, (3 mo. USD LIBOR + 2.25%), Maturing February 14, 2024 156 155,425
Term Loan, 2.50%, (3 mo. USD LIBOR + 2.25%), Maturing February 14, 2024 160 158,803
Term Loan, 2.50%, (3 mo. USD LIBOR + 2.25%), Maturing February 14, 2024 193 191,437

13 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Chemicals and Plastics (continued)
Flint Group GmbH
Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), 5.25% cash, 0.75% PIK, Maturing September 21, 2023 70 $ 66,067
Flint Group US, LLC
Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), 5.25% cash, 0.75% PIK, Maturing September 21, 2023 424 399,648
Gemini HDPE, LLC
Term Loan, Maturing December 10,
2027 (14) 375 373,594
Hexion, Inc.
Term Loan, 3.73%, (3 mo. USD LIBOR + 3.50%), Maturing July 1, 2026 345 344,104
Term Loan, 4.00%, (3 mo. EURIBOR + 4.00%), Maturing July 1, 2026 EUR 700 855,155
INEOS Enterprises Holdings US Finco, LLC
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing August 28, 2026 101 101,377
Momentive Performance Materials, Inc.
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing May 15, 2024 222 219,201
Orion Engineered Carbons GmbH
Term Loan, 2.25%, (3 mo. EURIBOR + 2.25%), Maturing July 25, 2024 EUR 356 434,547
PMHC II, Inc.
Term Loan, 4.50%, (12 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing March 31, 2025 812 763,222
PQ Corporation
Term Loan, 4.00%, (3 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing February 7, 2027 695 696,505
Pregis TopCo Corporation
Term Loan, 3.90%, (1 mo. USD LIBOR + 3.75%), Maturing July 31, 2026 297 296,134
Rohm Holding GmbH
Term Loan, 5.32%, (6 mo. USD LIBOR + 5.00%), Maturing July 31, 2026 1,662 1,616,236
Venator Materials Corporation
Term Loan, 3.15%, (1 mo. USD LIBOR + 3.00%), Maturing August 8, 2024 169 167,196
$ 8,869,136
Conglomerates — 0.0% (6)
Penn Engineering & Manufacturing Corp.
Term Loan, 3.75%, (1 mo. USD LIBOR + 2.75%, Floor 1.00%), Maturing June 27,
2024 84 $ 84,204
$ 84,204
Borrower/Tranche Description Value
Containers and Glass Products — 3.2%
BWAY Holding Company
Term Loan, 3.48%, (3 mo. USD LIBOR + 3.25%), Maturing April 3, 2024 1,932 $ 1,873,856
Flex Acquisition Company, Inc.
Term Loan, 4.00%, (USD LIBOR + 3.00%, Floor 1.00%), Maturing December 29, 2023 (12) 1,604 1,599,014
Term Loan, 3.23%, (3 mo. USD LIBOR + 3.00%), Maturing June 29, 2025 1,683 1,667,997
Libbey Glass, Inc.
Term Loan, 9.00%, (6 mo. USD LIBOR + 8.00%, Floor 1.00%), Maturing November 12, 2025 332 318,622
Proampac PG Borrower, LLC
Term Loan, 5.00%, (USD LIBOR + 4.00%, Floor 1.00%), Maturing November 3, 2025 (12) 1,244 1,242,763
Reynolds Group Holdings, Inc.
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing February 5, 2026 700 696,718
Ring Container Technologies Group, LLC
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing October 31, 2024 388 384,483
Trident TPI Holdings, Inc.
Term Loan, 4.00%, (3 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing October 17,
2024 364 361,200
$ 8,144,653
Cosmetics / Toiletries — 0.2%
Kronos Acquisition Holdings, Inc.
Term Loan, Maturing December 17, 2026 (14) 650 $ 651,625
$ 651,625
Drugs — 4.6%
Aenova Holding GmbH
Term Loan, 5.00%, (6 mo. EURIBOR + 5.00%), Maturing March 6, 2025 EUR 1,400 $ 1,721,533
Akorn, Inc.
Term Loan, 8.50%, (3 mo. USD LIBOR + 7.50%, Floor 1.00%), Maturing October 1, 2025 419 421,261
Albany Molecular Research, Inc.
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing August 30, 2024 314 315,931
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing August 30, 2024 125 126,016
Alkermes, Inc.
Term Loan, 2.41%, (1 mo. USD LIBOR + 2.25%), Maturing March 27, 2023 185 184,751

14 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Drugs (continued)
Amneal Pharmaceuticals, LLC
Term Loan, 3.69%, (1 mo. USD LIBOR + 3.50%), Maturing May 4, 2025 1,633 $ 1,595,235
Arbor Pharmaceuticals, Inc.
Term Loan, 6.00%, (6 mo. USD LIBOR + 5.00%, Floor 1.00%), Maturing July 5, 2023 563 545,632
Cambrex Corporation
Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing December 4, 2026 150 151,125
Endo Luxembourg Finance Company I S.a.r.l.
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.25%, Floor 0.75%), Maturing April 29, 2024 3,824 3,777,516
Mallinckrodt International Finance S.A.
Term Loan, 5.50%, (6 mo. USD LIBOR + 4.75%, Floor 0.75%), Maturing September 24, 2024 1,278 1,207,531
Term Loan, 5.75%, (6 mo. USD LIBOR + 5.00%, Floor 0.75%), Maturing February 24, 2025 1,447 1,366,149
Nidda Healthcare Holding AG
Term Loan, 3.50%, (3 mo. EURIBOR + 3.50%), Maturing August 21, 2026 EUR 275 333,224
$ 11,745,904
Ecological Services and Equipment — 1.5%
EnergySolutions, LLC
Term Loan, 4.75%, (3 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing May 9, 2025 1,848 $ 1,826,915
GFL Environmental, Inc.
Term Loan, 3.50%, (3 mo. USD LIBOR + 3.00%, Floor 0.50%), Maturing May 30, 2025 25 25,066
Patriot Container Corp.
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing March 20, 2025 1,492 1,469,942
TruGreen Limited Partnership
Term Loan, 4.75%, (1 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing November 2, 2027 300 301,875
US Ecology Holdings, Inc.
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing November 1, 2026 124 123,905
$ 3,747,703
Electronics / Electrical — 28.0%
Allegro Microsystems, Inc.
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), Maturing September 30, 2027 21 $ 21,127
Applied Systems, Inc.
Term Loan - Second Lien, 8.00%, (3 mo. USD LIBOR + 7.00%, Floor 1.00%),
Maturing September 19, 2025 1,225 1,234,953
Borrower/Tranche Description Value
Electronics / Electrical (continued)
Aptean, Inc.
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing April 23, 2026 1,340 $ 1,322,810
Term Loan, 6.25%, (1 mo. USD LIBOR + 5.25%, Floor 1.00%), Maturing April 23, 2026 995 980,075
Term Loan - Second Lien, 8.65%, (1 mo. USD LIBOR + 8.50%), Maturing April 23, 2027 650 673,270
AQA Acquisition Holding, Inc.
Term Loan, Maturing November
19, 2027 (14) 425 424,469
Astra Acquisition Corp.
Term Loan, 6.50%, (1 mo. USD LIBOR + 5.50%, Floor 1.00%), Maturing March 1, 2027 397 400,970
Avast Software B.V.
Term Loan, 3.25%, (3 mo. USD LIBOR + 2.25%, Floor 1.00%), Maturing September 29, 2023 87 86,854
Banff Merger Sub, Inc.
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing October 2, 2025 3,976 3,967,562
Term Loan, 4.75%, (3 mo. EURIBOR + 4.75%), Maturing October 2, 2025 EUR 123 150,369
Barracuda Networks, Inc.
Term Loan - Second Lien, 7.50%, (3 mo. USD LIBOR + 6.75%, Floor 0.75%),
Maturing October 30, 2028 200 202,500
Buzz Merger Sub, Ltd.
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing January 29, 2027 273 273,108
Term Loan, 3.75%, (1 mo. USD LIBOR + 3.25%, Floor 0.50%), Maturing January 29, 2027 100 99,875
Cambium Learning Group, Inc.
Term Loan, 4.75%, (3 mo. USD LIBOR + 4.50%), Maturing December 18, 2025 424 422,682
Castle US Holding Corporation
Term Loan, 4.00%, (3 mo. USD LIBOR + 3.75%), Maturing January 29, 2027 463 455,010
Celestica, Inc.
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing June 27, 2025 105 104,344
CentralSquare Technologies, LLC
Term Loan, 4.00%, (3 mo. USD LIBOR + 3.75%), Maturing August 29, 2025 1,884 1,761,901
Cloudera, Inc.
Term Loan, 3.25%, (1 mo. USD LIBOR + 2.50%, Floor 0.75%), Maturing December 17, 2027 300 300,750
Cohu, Inc.
Term Loan, 3.15%, (1 mo. USD LIBOR + 3.00%), Maturing October 1, 2025 342 338,558

15 See Notes to Financial Statements.

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Senior Income Trust

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Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Electronics / Electrical (continued)
Cornerstone OnDemand, Inc.
Term Loan, 4.39%, (1 mo. USD LIBOR + 4.25%), Maturing April 22, 2027 3,151 $ 3,176,163
CPI International, Inc.
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing July 26, 2024 1,232 1,215,918
Delta TopCo, Inc.
Term Loan, 4.50%, (6 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing December 1, 2027 725 726,359
Term Loan - Second Lien, 8.00%, (6 mo. USD LIBOR + 7.25%, Floor 0.75%),
Maturing December 1, 2028 1,000 1,012,500
E2open, LLC
Term Loan,
Maturing October 29, 2027 (14) 425 424,734
ECI Macola/Max Holdings, LLC
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing November 9, 2027 550 549,313
Electro Rent Corporation
Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), Maturing January 31, 2024 2,510 2,529,200
Energizer Holdings, Inc.
Term Loan, 2.75%, (1 mo. USD LIBOR + 2.25%, Floor 0.50%), Maturing December 22, 2027 542 543,348
Epicor Software Corporation
Term Loan - Second Lien, 8.75%, (1 mo. USD LIBOR + 7.75%, Floor 1.00%), Maturing July 31, 2028 375 391,875
EXC Holdings III Corp.
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing December 2, 2024 2,203 2,180,876
Finastra USA, Inc.
Term Loan, 4.50%, (6 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing June 13, 2024 3,875 3,804,701
Fiserv Investment Solutions, Inc.
Term Loan, 4.97%, (3 mo. USD LIBOR + 4.75%), Maturing February 18, 2027 1,269 1,281,047
GlobalLogic Holdings, Inc.
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing August 1, 2025 193 191,767
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing September 14, 2027 374 374,530
Go Daddy Operating Company, LLC
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing August 10, 2027 547 550,784
Hyland Software, Inc.
Term Loan, 4.25%, (1 mo. USD LIBOR + 3.50%, Floor 0.75%), Maturing July 1, 2024 2,805 2,814,102
Term Loan - Second Lien, 7.75%, (1 mo. USD LIBOR + 7.00%, Floor 0.75%),
Maturing July 7, 2025 1,787 1,800,570
Borrower/Tranche Description Value
Electronics / Electrical (continued)
Imperva, Inc.
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing January 12, 2026 299 $ 299,989
Imprivata, Inc.
Term Loan, 4.25%, (1 mo. USD LIBOR + 3.75%, Floor 0.50%), Maturing December 1, 2027 600 601,000
Informatica, LLC
Term Loan, 3.25%, (3 mo. EURIBOR + 3.25%), Maturing February 25, 2027 EUR 124 150,661
Term Loan - Second Lien, 7.13%, Maturing February 25, 2025 (15) 750 765,937
LogMeIn, Inc.
Term Loan, 4.90%, (1 mo. USD LIBOR + 4.75%), Maturing August 31, 2027 725 723,641
MA FinanceCo., LLC
Term Loan, 5.25%, (3 mo. USD LIBOR + 4.25%, Floor 1.00%), Maturing June 5, 2025 845 853,487
MACOM Technology Solutions Holdings, Inc.
Term Loan, 2.40%, (1 mo. USD LIBOR + 2.25%), Maturing May 17, 2024 571 560,190
Marcel LUX IV S.a.r.l.
Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing September 22, 2027 225 225,844
MaxLinear, Inc.
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing July 31, 2023 519 518,527
Milano Acquisition Corp.
Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing October 1, 2027 1,375 1,378,437
Mirion Technologies, Inc.
Term Loan, 4.27%, (6 mo. USD LIBOR + 4.00%), Maturing March 6, 2026 1,244 1,244,189
MKS Instruments, Inc.
Term Loan, 1.90%, (1 mo. USD LIBOR + 1.75%), Maturing February 2, 2026 154 153,006
MTS Systems Corporation
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), Maturing July 5, 2023 228 228,685
Recorded Books, Inc.
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing August 29, 2025 400 399,642
Term Loan, 4.75%, (1 mo. USD LIBOR + 4.25%, Floor 0.50%), Maturing August 29, 2025 725 725,906
Redstone Buyer, LLC
Term Loan, 6.00%, (2 mo. USD LIBOR + 5.00%, Floor 1.00%), Maturing September 1, 2027 750 754,687
Refinitiv US Holdings, Inc.
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing October 1, 2025 786 786,043

16 See Notes to Financial Statements.

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Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Electronics / Electrical (continued)
Renaissance Holding Corp.
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing May 30, 2025 561 $ 552,332
Term Loan - Second Lien, 7.15%, (1 mo. USD LIBOR + 7.00%), Maturing May 29, 2026 1,075 1,068,281
Riverbed Technology, Inc.
Term Loan - Second Lien, 12.00%, (1 mo. USD LIBOR + 11.00%, Floor 1.00%), 7.50% cash, 4.50% PIK, Maturing December 31,
2026 6 7,005
SkillSoft Corporation
Term Loan, 8.50%, (1 mo. USD LIBOR + 7.50%, Floor 1.00%), Maturing December 27, 2024 201 206,065
Term Loan - Second Lien, 8.50%, (1 mo. USD LIBOR + 7.50%, Floor 1.00%), Maturing April 27, 2025 664 665,890
Sophia L.P.
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing October 7, 2027 200 200,625
Sparta Systems, Inc.
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing August 21, 2024 1,063 1,049,269
STG-Fairway Holdings, LLC
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing January 31, 2027 1,542 1,522,008
SurveyMonkey, Inc.
Term Loan, 3.86%, (1 week USD LIBOR + 3.75%), Maturing October 10, 2025 466 464,486
Switch, Ltd.
Term Loan, 2.40%, (1 mo. USD LIBOR + 2.25%), Maturing June 27, 2024 83 83,583
Symplr Software, Inc.
Term Loan, 5.25%, (6 mo. USD LIBOR + 4.50%, Floor 0.75%), Maturing December 22, 2027 400 396,500
Syncsort Incorporated
Term Loan, 6.48%, (3 mo. USD LIBOR + 6.25%), Maturing August 16, 2024 1,185 1,185,463
Tech Data Corporation
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing June 30, 2025 549 553,425
Tibco Software, Inc.
Term Loan, 3.90%, (1 mo. USD LIBOR + 3.75%), Maturing June 30, 2026 2,475 2,448,691
Term Loan - Second Lien, 7.40%, (1 mo. USD LIBOR + 7.25%), Maturing March 3, 2028 2,250 2,280,937
TTM Technologies, Inc.
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing September 28, 2024 64 64,124
Borrower/Tranche Description Value
Electronics / Electrical (continued)
Uber Technologies, Inc.
Term Loan, 5.00%, (1 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing April 4, 2025 3,677 $ 3,700,256
Ultimate Software Group, Inc. (The)
Term Loan, 3.90%, (1 mo. USD LIBOR + 3.75%), Maturing May 4, 2026 765 766,078
Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing May 4, 2026 1,945 1,958,984
Term Loan - Second Lien, 7.50%, (3 mo. USD LIBOR + 6.75%, Floor 0.75%), Maturing May 3, 2027 125 128,906
Ultra Clean Holdings, Inc.
Term Loan, 4.65%, (1 mo. USD LIBOR + 4.50%), Maturing August 27, 2025 331 329,997
Valkyr Purchaser, LLC
Term Loan, 4.75%, (3 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing October 29, 2027 375 371,250
Verifone Systems, Inc.
Term Loan, 4.22%, (3 mo. USD LIBOR + 4.00%), Maturing August 20, 2025 1,211 1,174,492
Veritas US, Inc.
Term Loan, 6.50%, (3 mo. USD LIBOR + 5.50%, Floor 1.00%), Maturing September 1, 2025 1,222 1,220,920
Term Loan, Maturing September 1,
2025 (14) EUR 150 184,066
Vungle, Inc.
Term Loan, 5.65%, (1 mo. USD LIBOR + 5.50%), Maturing September 30, 2026 1,810 1,817,548
$ 71,560,026
Equipment Leasing — 0.5%
Avolon TLB Borrower 1 (US), LLC
Term Loan, 3.25%, (1 mo. USD LIBOR + 2.50%, Floor 0.75%), Maturing December 1, 2027 925 $ 926,734
Boels Topholding B.V.
Term Loan, 4.00%, (3 mo. EURIBOR + 4.00%), Maturing February 6, 2027 EUR 275 337,130
$ 1,263,864
Financial Intermediaries — 3.1%
Apollo Commercial Real Estate Finance, Inc.
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing May 15, 2026 197 $ 190,105
Aretec Group, Inc.
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing October 1, 2025 3,327 3,266,001

17 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Financial Intermediaries (continued)
Citco Funding, LLC
Term Loan, 2.77%, (6 mo. USD LIBOR + 2.50%), Maturing September 28, 2023 1,871 $ 1,865,370
Claros Mortgage Trust, Inc.
Term Loan, 6.00%, (1 mo. USD LIBOR + 5.00%, Floor 1.00%), Maturing August 9, 2026 271 272,846
Ditech Holding Corporation
Term Loan, 0.00%, Maturing June 30,
2022 (16) 1,124 356,727
EIG Management Company, LLC
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing February 22, 2025 122 121,866
Evergood 4 ApS
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), Maturing February 6, 2025 EUR 325 397,946
FB Income Advisor, LLC
Term Loan, 2.44%, (1 mo. USD LIBOR + 2.25%), Maturing August 1, 2025 244 243,458
Greenhill & Co., Inc.
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing April 12, 2024 458 454,193
GreenSky Holdings, LLC
Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing March 29, 2025 224 221,636
Starwood Property Trust, Inc.
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing July 27, 2026 247 244,406
Virtus Investment Partners, Inc.
Term Loan, 3.00%, (3 mo. USD LIBOR + 2.25%, Floor 0.75%), Maturing June 1,
2024 190 190,487
$ 7,825,041
Food Products — 1.6%
Alphabet Holding Company, Inc.
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing September 26, 2024 1,113 $ 1,105,091
Atkins Nutritionals Holdings II, Inc.
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing July 7, 2024 155 155,996
B&G Foods, Inc.
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing October 10, 2026 178 178,373
Badger Buyer Corp.
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing September 30, 2024 1,157 1,104,609
CHG PPC Parent, LLC
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing March 31, 2025 219 216,907
Borrower/Tranche Description Value
Food Products (continued)
H Food Holdings, LLC
Term Loan, 3.83%, (1 mo. USD LIBOR + 3.69%), Maturing May 23, 2025 831 $ 819,622
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), Maturing May 23, 2025 196 193,778
Shearer’s Foods, Inc.
Term Loan, 4.75%, (USD LIBOR + 4.00%, Floor 0.75%), Maturing September 23, 2027 (12) 200 199,892
$ 3,974,268
Food Service — 0.8%
IRB Holding Corp.
Term Loan, 3.75%, (6 mo. USD LIBOR + 2.75%, Floor 1.00%), Maturing February 5, 2025 1,001 $ 994,787
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing December 15,
2027 1,100 1,101,512
$ 2,096,299
Food / Drug Retailers — 0.7%
BW Gas & Convenience Holdings, LLC
Term Loan, 6.40%, (1 mo. USD LIBOR + 6.25%), Maturing November 18, 2024 1,352 $ 1,359,937
L1R HB Finance Limited
Term Loan, 4.25%, (3 mo. EURIBOR + 4.25%), Maturing August 9, 2024 EUR 200 216,977
Term Loan, 5.27%, (3 mo. GBP LIBOR + 5.25%), Maturing September 2, 2024 GBP 200 240,467
$ 1,817,381
Forest Products — 0.2%
Neenah, Inc.
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing June 25,
2027 448 $ 449,149
$ 449,149
Health Care — 14.7%
Accelerated Health Systems, LLC
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing October 31, 2025 245 $ 240,406
ADMI Corp.
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing April 30, 2025 2,045 2,019,705
Alliance Healthcare Services, Inc.
Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing October 24, 2023 358 324,888

18 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Health Care (continued)
Alliance Healthcare Services, Inc. (continued)
Term Loan - Second Lien, 12.00%, (1 mo. USD LIBOR + 11.00%, Floor 1.00%), Maturing April 24, 2024 229 $ 107,007
athenahealth, Inc.
Term Loan, 4.65%, (1 mo. USD LIBOR + 4.50%), Maturing February 11, 2026 3,365 3,370,921
Avantor Funding, Inc.
Term Loan, 3.25%, (1 mo. USD LIBOR + 2.25%, Floor 1.00%), Maturing November 21, 2024 168 168,375
Term Loan, 3.50%, (1 mo. USD LIBOR + 2.50%, Floor 1.00%), Maturing November 8, 2027 200 200,500
BioClinica Holding I L.P.
Term Loan, 5.25%, (1 mo. USD LIBOR + 4.25%, Floor 1.00%), Maturing October 20, 2023 697 692,026
BW NHHC Holdco, Inc.
Term Loan, 5.22%, (3 mo. USD LIBOR + 5.00%), Maturing May 15, 2025 1,056 931,505
Cano Health, LLC
Term Loan, 0.50%, Maturing November 19,
2027 (13) 174 173,158
Term Loan, 6.00%, (6 mo. USD LIBOR + 5.25%, Floor 0.75%), Maturing November 19, 2027 476 474,946
Certara L.P.
Term Loan, 3.75%, (3 mo. USD LIBOR + 3.50%), Maturing August 15, 2024 482 482,895
CryoLife, Inc.
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing December 1, 2024 218 218,796
Dedalus Finance GmbH
Term Loan, 4.50%, (6 mo. EURIBOR + 4.50%), Maturing May 4, 2027 EUR 350 429,715
Term Loan,
Maturing August 16, 2027 (14) EUR 525 644,573
Ensemble RCM, LLC
Term Loan, 3.96%, (3 mo. USD LIBOR + 3.75%), Maturing August 3, 2026 247 246,906
Envision Healthcare Corporation
Term Loan, 3.90%, (1 mo. USD LIBOR + 3.75%), Maturing October 10, 2025 2,378 1,996,303
GHX Ultimate Parent Corporation
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing June 28, 2024 435 429,103
Hanger, Inc.
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing March 6, 2025 486 486,706
IQVIA, Inc.
Term Loan, 1.90%, (1 mo. USD LIBOR + 1.75%), Maturing March 7, 2024 313 312,274
Borrower/Tranche Description Value
Health Care (continued)
IQVIA, Inc. (continued)
Term Loan, 1.90%, (1 mo. USD LIBOR + 1.75%), Maturing January 17, 2025 460 $ 457,782
Medical Solutions, LLC
Term Loan, 5.50%, (3 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing June 14, 2024 1,802 1,792,733
MPH Acquisition Holdings, LLC
Term Loan, 3.75%, (3 mo. USD LIBOR + 2.75%, Floor 1.00%), Maturing June 7, 2023 3,516 3,507,967
National Mentor Holdings, Inc.
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing March 9, 2026 321 321,656
Term Loan, 4.51%, (3 mo. USD LIBOR + 4.25%), Maturing March 9, 2026 15 14,703
Term Loan, Maturing March 9, 2026 (14) 4 3,977
Term Loan, Maturing March 9, 2026 (14) 105 105,396
Navicure, Inc.
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), Maturing October 22, 2026 447 446,346
Term Loan, 4.75%, (1 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing October 22, 2026 249 249,531
One Call Corporation
Term Loan, 6.25%, (3 mo. USD LIBOR + 5.25%, Floor 1.00%), Maturing November 25, 2022 992 960,702
Ortho-Clinical Diagnostics S.A.
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing June 30, 2025 2,254 2,225,949
Phoenix Guarantor, Inc.
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing March 5, 2026 862 858,821
Term Loan, 4.25%, (1 mo. USD LIBOR + 3.75%, Floor 0.50%), Maturing March 5, 2026 275 275,258
PointClickCare Technologies, Inc.
Term Loan, Maturing December 29,
2027 (14) 300 300,000
Radiology Partners, Inc.
Term Loan, 4.81%, (USD LIBOR + 4.25%), Maturing July 9,
2025 (12) 2,245 2,213,712
RadNet, Inc.
Term Loan, 4.75%, (3 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing June 30, 2023 2,590 2,589,972
Sound Inpatient Physicians
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing June 27, 2025 219 218,187
Surgery Center Holdings, Inc.
Term Loan, 4.25%, (1 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing September 3, 2024 2,553 2,516,628

19 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Health Care (continued)
Synlab Bondco PLC
Term Loan, 3.75%, (6 mo. EURIBOR + 3.75%), Maturing July 31, 2027 EUR 150 $ 183,385
Team Health Holdings, Inc.
Term Loan, 3.75%, (1 mo. USD LIBOR + 2.75%, Floor 1.00%), Maturing February 6, 2024 1,329 1,197,702
Tecomet, Inc.
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing May 1, 2024 486 478,289
U.S. Anesthesia Partners, Inc.
Term Loan, 4.00%, (6 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing June 23, 2024 1,967 1,929,216
US Radiology Specialists, Inc.
Term Loan, 6.25%, (3 mo. USD LIBOR + 5.50%, Floor 0.75%), Maturing December 10, 2027 400 399,000
Verscend Holding Corp.
Term Loan, 4.65%, (1 mo. USD LIBOR + 4.50%), Maturing August 27, 2025 362 362,773
$ 37,560,393
Home Furnishings — 1.0%
Mattress Firm, Inc.
Term Loan, 6.25%, (3 mo. USD LIBOR + 5.25%, Floor 1.00%), Maturing November 26, 2027 425 $ 429,250
Serta Simmons Bedding, LLC
Term Loan, 8.50%, (1 mo. USD LIBOR + 7.50%, Floor 1.00%), Maturing August 10, 2023 525 529,057
Term Loan - Second Lien, 8.50%, (1 mo. USD LIBOR + 7.50%, Floor 1.00%),
Maturing August 10, 2023 1,736 1,568,863
$ 2,527,170
Industrial Equipment — 8.1%
AI Alpine AT Bidco GmbH
Term Loan, 3.23%, (6 mo. USD LIBOR + 3.00%), Maturing October 31, 2025 98 $ 93,712
Alliance Laundry Systems, LLC
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.50%, Floor 0.75%), Maturing October 8, 2027 550 550,745
Apex Tool Group, LLC
Term Loan, 6.50%, (1 mo. USD LIBOR + 5.25%, Floor 1.25%), Maturing August 1, 2024 2,069 2,050,161
CFS Brands, LLC
Term Loan, 4.00%, (6 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing March 20, 2025 1,365 1,271,514
Borrower/Tranche Description Value
Industrial Equipment (continued)
CPM Holdings, Inc.
Term Loan, 3.91%, (1 mo. USD LIBOR + 3.75%), Maturing November 17, 2025 2,209 $ 2,152,243
Delachaux Group S.A.
Term Loan, 3.75%, (6 mo. EURIBOR + 3.75%), Maturing April 16, 2026 EUR 175 213,154
Term Loan, 4.74%, (6 mo. USD LIBOR + 4.50%), Maturing April 16, 2026 223 218,295
DexKo Global, Inc.
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), Maturing July 24, 2024 EUR 145 175,995
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), Maturing July 24, 2024 EUR 363 439,991
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing July 24, 2024 1,381 1,370,647
DXP Enterprises, Inc.
Term Loan, 5.75%, (1 mo. USD LIBOR + 4.75%, Floor 1.00%), Maturing December 16, 2027 250 249,375
Dynacast International, LLC
Term Loan, 4.25%, (3 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing January 28, 2022 571 545,189
Engineered Machinery Holdings, Inc.
Term Loan, 4.00%, (3 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing July 19, 2024 634 632,976
Term Loan, 5.25%, (3 mo. USD LIBOR + 4.25%, Floor 1.00%), Maturing July 19, 2024 147 147,827
Filtration Group Corporation
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing March 29, 2025 174 174,705
Gates Global, LLC
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing April 1, 2024 EUR 409 496,067
Hayward Industries, Inc.
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing August 5, 2024 215 213,391
LTI Holdings, Inc.
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing September 6, 2025 715 696,364
Term Loan, 4.90%, (1 mo. USD LIBOR + 4.75%), Maturing July 24, 2026 843 830,802
Pro Mach Group, Inc.
Term Loan, 3.50%, Maturing March 7,
2025 (13) 99 102,916
Term Loan, 4.50%, (USD LIBOR + 3.50%, Floor 1.00%), Maturing March 7, 2025 (12) 299 295,364
Quimper AB
Term Loan, 4.00%, (3 mo. EURIBOR + 4.00%), Maturing February 13, 2026 EUR 850 1,042,297

20 See Notes to Financial Statements.

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Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Industrial Equipment (continued)
Robertshaw US Holding Corp.
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing February 28, 2025 1,206 $ 1,133,826
Terex Corporation
Term Loan, 3.50%, (1 mo. USD LIBOR + 2.75%, Floor 0.75%), Maturing January 31, 2024 2,158 2,146,980
Thermon Industries, Inc.
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing October 30, 2024 118 118,387
Titan Acquisition Limited
Term Loan, 3.27%, (6 mo. USD LIBOR + 3.00%), Maturing March 28, 2025 2,133 2,086,970
Vertical Midco GmbH
Term Loan, 4.57%, (6 mo. USD LIBOR + 4.25%), Maturing July 30, 2027 599 602,007
Welbilt, Inc.
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing October 23, 2025 639 608,119
$ 20,660,019
Insurance — 4.7%
Alliant Holdings Intermediate, LLC
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing May 9, 2025 222 $ 218,318
Term Loan, 4.25%, (1 mo. USD LIBOR + 3.75%, Floor 0.50%), Maturing October 8, 2027 573 574,553
AmWINS Group, Inc.
Term Loan, 3.75%, (1 mo. USD LIBOR + 2.75%, Floor 1.00%), Maturing January 25, 2024 274 273,883
AssuredPartners Capital, Inc.
Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing February 12, 2027 223 224,150
AssuredPartners, Inc.
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing February 12, 2027 693 684,049
Asurion, LLC
Term Loan - Second Lien, 6.65%, (1 mo. USD LIBOR + 6.50%), Maturing August 4, 2025 4,509 4,548,545
FrontDoor, Inc.
Term Loan, 2.69%, (1 mo. USD LIBOR + 2.50%), Maturing August 16, 2025 220 219,388
Hub International Limited
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing April 25, 2025 3,323 3,336,761
Ryan Specialty Group, LLC
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), Maturing September 1, 2027 798 798,000
Borrower/Tranche Description Value
Insurance (continued)
Sedgwick Claims Management Services, Inc.
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing December 31, 2025 564 $ 555,635
USI, Inc.
Term Loan, 4.25%, (3 mo. USD LIBOR + 4.00%), Maturing December 2, 2026 644 643,822
$ 12,077,104
Leisure Goods / Activities / Movies — 7.1%
AMC Entertainment Holdings, Inc.
Term Loan, 3.23%, (3 mo. USD LIBOR + 3.00%), Maturing April 22, 2026 835 $ 540,885
Amer Sports Oyj
Term Loan, 4.50%, (6 mo. EURIBOR + 4.50%), Maturing March 30, 2026 EUR 1,600 1,871,568
Bombardier Recreational Products, Inc.
Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), Maturing May 24, 2027 324 331,448
Carnival Corporation
Term Loan, 8.50%, (1 mo. USD LIBOR + 7.50%, Floor 1.00%), Maturing June 30, 2025 622 644,262
ClubCorp Holdings, Inc.
Term Loan, 3.00%, (3 mo. USD LIBOR + 2.75%), Maturing September 18, 2024 1,839 1,725,473
Crown Finance US, Inc.
Term Loan, Maturing May 23, 2024 (14) 298 357,190
Term Loan, 2.63%, (6 mo. EURIBOR + 2.63%), Maturing February 28, 2025 EUR 797 663,960
Term Loan, 3.50%, (6 mo. USD LIBOR + 2.50%, Floor 1.00%), Maturing February 28, 2025 789 538,741
Term Loan, 3.02%, (6 mo. USD LIBOR + 2.75%), Maturing September 30, 2026 693 466,377
Delta 2 (LUX) S.a.r.l.
Term Loan, 3.50%, (1 mo. USD LIBOR + 2.50%, Floor 1.00%), Maturing February 1, 2024 447 443,631
Etraveli Holding AB
Term Loan, 4.50%, (6 mo. EURIBOR + 4.50%), Maturing August 2, 2024 EUR 2,175 2,457,807
Lindblad Expeditions, Inc.
Term Loan, 6.75%, (1 mo. USD LIBOR + 6.00%, Floor 0.75%), 5.50% cash, 1.25% PIK, Maturing March 27, 2025 172 158,662
Term Loan, 6.75%, (1 mo. USD LIBOR + 6.00%, Floor 0.75%), 5.50% cash, 1.25% PIK, Maturing March 27, 2025 690 634,647
Playtika Holding Corp.
Term Loan, 7.00%, (3 mo. USD LIBOR + 6.00%, Floor 1.00%), Maturing December 10, 2024 2,422 2,441,872

21 See Notes to Financial Statements.

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Senior Income Trust

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Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Leisure Goods / Activities / Movies (continued)
SeaWorld Parks & Entertainment, Inc.
Term Loan, 3.75%, (1 mo. USD LIBOR + 3.00%, Floor 0.75%), Maturing March 31, 2024 551 $ 536,440
Steinway Musical Instruments, Inc.
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing February 14, 2025 141 137,133
Travel Leaders Group, LLC
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), Maturing January 25, 2024 1,931 1,713,849
UFC Holdings, LLC
Term Loan, 4.25%, (6 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing April 29, 2026 100 99,500
Term Loan, 4.25%, (6 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing April 29, 2026 1,014 1,013,839
Vue International Bidco PLC
Term Loan, 4.75%, (6 mo. EURIBOR + 4.75%), Maturing July 3, 2026 EUR 1,333 1,397,151
$ 18,174,435
Lodging and Casinos — 2.9%
Boyd Gaming Corporation
Term Loan, 2.35%, (1 week USD LIBOR + 2.25%), Maturing September 15, 2023 301 $ 299,763
CityCenter Holdings, LLC
Term Loan, 3.00%, (1 mo. USD LIBOR + 2.25%, Floor 0.75%), Maturing April 18, 2024 1,532 1,515,415
Golden Nugget, Inc.
Term Loan, 3.25%, (2 mo. USD LIBOR + 2.50%, Floor 0.75%), Maturing October 4, 2023 2,242 2,173,170
Playa Resorts Holding B.V.
Term Loan, 3.75%, (1 mo. USD LIBOR + 2.75%, Floor 1.00%), Maturing April 29, 2024 2,104 1,954,358
Sportradar Capital S.a.r.l.
Term Loan, 4.25%, (6 mo. EURIBOR + 4.25%), Maturing October 27, 2027 EUR 250 306,367
Stars Group Holdings B.V. (The)
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), Maturing July 10, 2025 EUR 269 329,663
Term Loan, 3.75%, (3 mo. USD LIBOR + 3.50%), Maturing July 10, 2025 784 787,789
$ 7,366,525
Nonferrous Metals / Minerals — 0.5%
American Consolidated Natural Resources, Inc.
Term Loan, 14.00%, (1 mo. USD LIBOR + 13.00%, Floor 1.00%), Maturing September 16, 2025 300 $ 289,607
Borrower/Tranche Description Value
Nonferrous Metals / Minerals (continued)
CD&R Hydra Buyer, Inc.
Term Loan, 7.50%, (0.00% cash, 7.50% PIK), Maturing August 15, 2021 (3)(15) 83 $ 66,379
Oxbow Carbon, LLC
Term Loan, 5.00%, (1 mo. USD LIBOR + 4.25%, Floor 0.75%), Maturing October 13, 2025 346 346,489
Rain Carbon GmbH
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing January 16, 2025 EUR 450 535,999
$ 1,238,474
Oil and Gas — 7.5%
Ameriforge Group, Inc.
Term Loan, 14.00%, (3 mo. USD LIBOR + 13.00%, Floor 1.00%), 9.00% cash, 5.00% PIK, Maturing June 8, 2022 339 $ 271,077
Apergy Corporation
Term Loan, 2.69%, (1 mo. USD LIBOR + 2.50%), Maturing May 9, 2025 59 58,372
Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), Maturing May 28, 2027 2,048 2,078,212
Blackstone CQP Holdco L.P.
Term Loan, 3.74%, (3 mo. USD LIBOR + 3.50%), Maturing September 30, 2024 3,445 3,438,315
Centurion Pipeline Company, LLC
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), Maturing September 28, 2025 100 99,750
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing September 29, 2025 123 122,500
CITGO Holding, Inc.
Term Loan, 8.00%, (6 mo. USD LIBOR + 7.00%, Floor 1.00%), Maturing August 1, 2023 1,113 1,036,557
CITGO Petroleum Corporation
Term Loan, 7.25%, (6 mo. USD LIBOR + 6.25%, Floor 1.00%), Maturing March 28, 2024 2,203 2,194,607
Delek US Holdings, Inc.
Term Loan, 6.50%, (1 mo. USD LIBOR + 5.50%, Floor 1.00%), Maturing March 31, 2025 2,760 2,736,253
Fieldwood Energy, LLC
DIP Loan, 3.68%, (1 mo. USD LIBOR + 8.75%, Floor 1.00%), Maturing August 4, 2021 (13) 198 197,246
Term Loan, 0.00%, Maturing April 11,
2022 (16) 1,338 311,201
Lealand Finance Company B.V.
Term Loan, 4.15%, (1 mo. USD LIBOR + 4.00%), 1.15% cash, 3.00% PIK, Maturing June 30, 2025 162 110,967
Matador Bidco S.a.r.l.
Term Loan, 4.90%, (1 mo. USD LIBOR + 4.75%), Maturing October 15, 2026 2,673 2,672,581

22 See Notes to Financial Statements.

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Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Oil and Gas (continued)
McDermott Technology Americas, Inc.
Term Loan, 3.15%, (1 mo. USD LIBOR + 3.00%), Maturing June 30, 2024 11 $ 9,134
Prairie ECI Acquiror L.P.
Term Loan, 4.90%, (1 mo. USD LIBOR + 4.75%), Maturing March 11, 2026 2,066 2,020,238
PSC Industrial Holdings Corp.
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing October 11, 2024 1,235 1,200,925
RDV Resources Properties, LLC
Term Loan, 15.50%, (1 mo. USD LIBOR + 14.50%, Floor 1.00%), 1.50% cash, 14.00% PIK, Maturing March 29, 2024 (3) 239 158,203
Sunrise Oil & Gas Properties, LLC
Term Loan, 8.00%, (1 mo. USD LIBOR + 7.00%, Floor 1.00%), Maturing January 17, 2023 38 33,581
Term Loan - Second Lien, 8.00%, (1 mo. USD LIBOR + 7.00%, Floor 1.00%),
Maturing January 17, 2023 39 28,578
Term Loan - Third Lien, 8.00%, (1 mo. USD LIBOR + 7.00%, Floor 1.00%), Maturing January 17, 2023 45 15,722
UGI Energy Services, LLC
Term Loan, 3.90%, (1 mo. USD LIBOR + 3.75%), Maturing August 13, 2026 468 469,630
$ 19,263,649
Publishing — 1.2%
Alchemy Copyrights, LLC
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), Maturing August 16, 2027 224 $ 226,121
Ascend Learning, LLC
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing July 12, 2024 532 530,928
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing July 12, 2024 200 200,414
Getty Images, Inc.
Term Loan, 4.69%, (1 mo. USD LIBOR + 4.50%), Maturing February 19, 2026 776 766,813
LSC Communications, Inc.
Term Loan, 0.00%,
Maturing September 30, 2022 (16) 364 52,184
Nielsen Finance, LLC
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing June 4, 2025 398 401,980
ProQuest, LLC
Term Loan, 3.65%, (1 mo. USD LIBOR + 3.50%), Maturing October 23, 2026 911 912,092
Borrower/Tranche Description Value
Publishing (continued)
Tweddle Group, Inc.
Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing September 17,
2023 94 $ 87,110
$ 3,177,642
Radio and Television — 3.5%
Cumulus Media New Holdings, Inc.
Term Loan, 4.75%, (6 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing March 31, 2026 1,347 $ 1,327,936
Diamond Sports Group, LLC
Term Loan, 3.40%, (1 mo. USD LIBOR + 3.25%), Maturing August 24, 2026 1,407 1,259,433
Entravision Communications Corporation
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing November 29, 2024 377 369,154
Gray Television, Inc.
Term Loan, 2.40%, (1 mo. USD LIBOR + 2.25%), Maturing February 7, 2024 116 115,024
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing January 2, 2026 276 274,638
Hubbard Radio, LLC
Term Loan, 5.25%, (6 mo. USD LIBOR + 4.25%, Floor 1.00%), Maturing March 28, 2025 270 263,219
iHeartCommunications, Inc.
Term Loan, 3.15%, (1 mo. USD LIBOR + 3.00%), Maturing May 1, 2026 817 804,839
Term Loan, 4.75%, (1 mo. USD LIBOR + 4.00%, Floor 0.75%), Maturing May 1, 2026 174 173,762
Nexstar Broadcasting, Inc.
Term Loan, 2.90%, (1 mo. USD LIBOR + 2.75%), Maturing September 18, 2026 216 214,638
Sinclair Television Group, Inc.
Term Loan, 2.65%, (1 mo. USD LIBOR + 2.50%), Maturing September 30, 2026 296 293,843
Terrier Media Buyer, Inc.
Term Loan, 4.40%, (1 mo. USD LIBOR + 4.25%), Maturing December 17, 2026 2,167 2,169,835
Univision Communications, Inc.
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing March 15,
2026 1,556 1,559,222
$ 8,825,543
Retailers (Except Food and Drug) — 4.5%
Apro, LLC
Term Loan, 5.00%, (3 mo. USD LIBOR + 4.00%, Floor 1.00%), Maturing November 14, 2026 770 $ 771,814

23 See Notes to Financial Statements.

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Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Value
Retailers (Except Food and Drug) (continued)
Ascena Retail Group, Inc.
Term Loan, 0.00%, Maturing August 21,
2022 (16) 723 $ 146,329
Bass Pro Group, LLC
Term Loan, 5.75%, (1 mo. USD LIBOR + 5.00%, Floor 0.75%), Maturing September 25, 2024 2,589 2,600,833
CNT Holdings I Corp.
Term Loan, 4.50%, (6 mo. USD LIBOR + 3.75%, Floor 0.75%), Maturing November 8, 2027 350 350,594
David’s Bridal, Inc.
Term Loan, 12.00%, (3 mo. USD LIBOR + 11.00%, Floor 1.00%), 6.00% cash, 6.00% PIK, Maturing June 23, 2023 142 133,802
Term Loan, 7.00%, (3 mo. USD LIBOR + 6.00%, Floor 1.00%), Maturing June 30, 2023 167 140,486
Harbor Freight Tools USA, Inc.
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.25%, Floor 0.75%), Maturing October 19, 2027 725 725,767
Hoya Midco, LLC
Term Loan, 4.50%, (6 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing June 30, 2024 1,963 1,867,810
LSF9 Atlantis Holdings, LLC
Term Loan, 7.00%, (1 mo. USD LIBOR + 6.00%, Floor 1.00%), Maturing May 1, 2023 428 426,253
PetSmart, Inc.
Term Loan, 4.50%, (3 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing March 11, 2022 4,115 4,115,498
Phillips Feed Service, Inc.
Term Loan, 8.00%, (2 mo. USD LIBOR + 7.00%, Floor 1.00%), Maturing November 13, 2024 (3) 50 40,225
Pier 1 Imports (U.S.), Inc.
Term Loan, 0.00%, Maturing April 30,
2021 (3)(16) 104 41,676
WASH MultiFamily Laundry Systems, LLC
Term Loan, 4.25%, (1 mo. USD LIBOR + 3.25%, Floor 1.00%), Maturing May 14,
2022 101 100,648
$ 11,461,735
Steel — 0.6%
GrafTech Finance, Inc.
Term Loan, 4.50%, (1 mo. USD LIBOR + 3.50%, Floor 1.00%), Maturing February 12, 2025 582 $ 582,229
Neenah Foundry Company
Term Loan, 10.00%, (USD LIBOR + 9.00%, Floor 1.00%), Maturing December 13, 2022 (12) 303 265,337
Phoenix Services International, LLC
Term Loan, 4.75%, (1 mo. USD LIBOR + 3.75%, Floor 1.00%), Maturing March 1, 2025 389 385,353
Borrower/Tranche Description Value
Steel (continued)
Zekelman Industries, Inc.
Term Loan, 2.14%, (1 mo. USD LIBOR + 2.00%), Maturing January 24, 2027 291 $ 289,503
$ 1,522,422
Surface Transport — 1.3%
Hertz Corporation (The)
DIP Loan, 4.43%, (1 mo. USD LIBOR + 7.25%, Floor 1.00%), Maturing December 31, 2021 (13) 399 $ 409,647
Term Loan, 3.50%, (1 mo. USD LIBOR + 2.75%, Floor 0.75%), Maturing June 30, 2023 469 462,389
Kenan Advantage Group, Inc.
Term Loan, 3.15%, (1 mo. USD LIBOR + 3.00%), Maturing July 31, 2022 1,849 1,821,332
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing July 31, 2022 451 444,464
XPO Logistics, Inc.
Term Loan, 2.15%, (1 mo. USD LIBOR + 2.00%), Maturing February 24, 2025 275 274,026
$ 3,411,858
Telecommunications — 4.1%
CCI Buyer, Inc.
Term Loan, Maturing December 10,
2027 (14) 325 $ 325,863
Colorado Buyer, Inc.
Term Loan, 4.00%, (6 mo. USD LIBOR + 3.00%, Floor 1.00%), Maturing May 1, 2024 2,123 1,993,331
Digicel International Finance Limited
Term Loan, 3.51%, (6 mo. USD LIBOR + 3.25%), Maturing May 28, 2024 1,839 1,687,171
Global Eagle Entertainment, Inc.
DIP Loan, 11.25%, (1 mo. USD LIBOR + 10.00%, Floor 1.25%), Maturing January 22, 2021 186 184,009
Term Loan, 0.00%, Maturing January 6,
2023 (16) 1,253 950,931
Intelsat Jackson Holdings S.A.
DIP Loan, 6.50%, (USD LIBOR + 5.50%, Floor 1.00%), Maturing July 13, 2022 (12) 444 454,947
Term Loan, 8.00%, (USD Prime + 4.75%), Maturing November 27, 2023 650 658,802
Term Loan, 8.75%, (USD Prime + 5.50%), Maturing January 2, 2024 850 866,150
IPC Corp.
Term Loan, 5.50%, (3 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing August 6, 2021 (3) 557 411,015
Onvoy, LLC
Term Loan, 5.50%, (1 mo. USD LIBOR + 4.50%, Floor 1.00%), Maturing February 10, 2024 1,790 1,754,652

24 See Notes to Financial Statements.

Table of Contents

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Senior Income Trust

December 31, 2020

Portfolio of Investments (Unaudited) — continued

Borrower/Tranche Description Principal Amount* (000’s omitted) Value
Telecommunications (continued)
Syniverse Holdings, Inc.
Term Loan, 6.00%, (3 mo. USD LIBOR + 5.00%, Floor 1.00%), Maturing March 9, 2023 462 $ 420,507
Ziggo Financing Partnership
Term Loan, 2.66%, (1 mo. USD LIBOR + 2.50%), Maturing April 30, 2028 700 695,188
$ 10,402,566
Utilities — 0.8%
Brookfield WEC Holdings, Inc.
Term Loan, 3.75%, (1 mo. USD LIBOR + 3.00%, Floor 0.75%), Maturing August 1, 2025 559 $ 558,152
Longview Power, LLC
Term Loan, 11.00%, (3 mo. USD LIBOR + 10.00%, Floor 1.00%), Maturing July 30, 2025 (3) 168 134,221
USIC Holdings, Inc.
Term Loan, 4.00%, (1 mo. USD LIBOR + 3.00%, Floor 1.00%),
Maturing December 8, 2023 1,487 1,487,434
$ 2,179,807
Total Senior Floating-Rate Loans (identified cost
$366,193,608) $ 366,542,403
Warrants — 0.0% (6)
Security Shares Value
Health Care — 0.0% (6)
THAIHOT Investment Company US Limited,
Exp. 10/13/27 (3)(4)(5) 75 $ 21,355
THAIHOT Investment Company US Limited,
Exp. 10/13/27 (3)(4)(5) 11 3,132
THAIHOT Investment Company US Limited, Exp. 10/13/27 (Contingent Warrants) (3)(4)(5) 4,799 0
$ 24,487
Retailers (Except Food and Drug) — 0.0%
David’s Bridal, LLC, Exp. 11/26/22 (3)(4)(5) 2,169 $ 0
$ 0
Total Warrants (identified cost $0) $ 24,487
Miscellaneous — 0.0% (6) — Security Shares Value
Cable and Satellite Television — 0.0%
ACC Claims Holdings,
LLC (3) 200,340 $ 0
$ 0
Oil and Gas — 0.0% (6)
Paragon Offshore Finance
Company, Class A (4)(5) 764 $ 229
Paragon Offshore Finance Company, Class B (4)(5) 382 4,680
$ 4,909
Total Miscellaneous (identified cost $8,308) $ 4,909
Short-Term Investments — 3.2%
Description Units Value
Eaton Vance Cash Reserves Fund, LLC, 0.11% (17) 8,028,834 $ 8,028,834
Total Short-Term Investments (identified cost
$8,028,834) $ 8,028,834
Total Investments — 163.7% (identified cost
$418,590,359) $ 418,001,701
Less Unfunded Loan Commitments — (0.4)% $ (933,850 )
Net Investments — 163.3% (identified cost
$417,656,509) $ 417,067,851
Other Assets, Less Liabilities — (48.6)% $ (124,039,528 )
Auction Preferred Shares Plus Cumulative Unpaid
Dividends — (14.7)% $ (37,600,342 )
Net Assets Applicable to Common Shares — 100.0% $ 255,427,981

The percentage shown for each investment category in the Portfolio of Investments is based on net assets applicable to common shares.

  • In U.S. dollars unless otherwise indicated.

(1) Security exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These securities may be sold in certain transactions in reliance on an exemption from registration (normally to qualified institutional buyers). At December 31, 2020, the aggregate value of these securities is $29,793,412 or 11.7% of the Trust’s net assets applicable to common shares.

(2) Variable rate security. The stated interest rate represents the rate in effect at December 31, 2020.

(3) For fair value measurement disclosure purposes, security is categorized as Level 3 (see Note 11).

(4) Security was acquired in connection with a restructuring of a Senior Loan and may be subject to restrictions on resale.

25 See Notes to Financial Statements.

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Portfolio of Investments (Unaudited) — continued

(5) Non-income producing security.

(6) Amount is less than 0.05%.

(7) Restricted security (see Note 7).

(8) Represents a payment-in-kind security which may pay interest/dividends in additional principal/shares at the issuer’s discretion.

(9) Security converts to variable rate after the indicated fixed-rate coupon period.

(10) Perpetual security with no stated maturity date but may be subject to calls by the issuer.

(11) Senior floating-rate loans (Senior Loans) often require prepayments from excess cash flows or permit the borrowers to repay at their election. The degree to which borrowers repay, whether as a contractual requirement or at their election, cannot be predicted with accuracy. As a result, the actual remaining maturity may be substantially less than the stated maturities shown. However, Senior Loans will typically have an expected average life of approximately two to four years. Senior Loans typically have rates of interest which are redetermined periodically by reference to a base lending rate, plus a spread. These base lending rates are primarily the London Interbank Offered Rate (“LIBOR”) and secondarily, the prime rate offered by one or more major United States banks (the “Prime Rate”). Base lending rates may be subject to a floor, or a minimum rate. Senior Loans

are generally subject to contractual restrictions that must be satisfied before they can be bought or sold.

(12) The stated interest rate represents the weighted average interest rate at December 31, 2020 of contracts within the senior loan facility. Interest rates on contracts are primarily redetermined either weekly, monthly or quarterly by reference to the indicated base lending rate and spread and the reset period.

(13) Unfunded or partially unfunded loan commitments. The stated interest rate reflects the weighted average of the reference rate and spread for the funded portion, if any, and the commitment fees on the portion of the loan that is unfunded. At December 31, 2020, the total value of unfunded loan commitments is $944,525. See Note 1F for description.

(14) This Senior Loan will settle after December 31, 2020, at which time the interest rate will be determined.

(15) Fixed-rate loan.

(16) Issuer is in default with respect to interest and/or principal payments. For a variable rate security, interest rate has been adjusted to reflect non-accrual status.

(17) Affiliated investment company, available to Eaton Vance portfolios and funds, which invests in high quality, U.S. dollar denominated money market instruments. The rate shown is the annualized seven-day yield as of December 31, 2020.

Forward Foreign Currency Exchange Contracts — Currency Purchased Currency Sold Counterparty Settlement Date Unrealized Appreciation Unrealized (Depreciation)
EUR 8,751,220 USD 10,707,555 Standard Chartered Bank 1/5/21 $ — $ (16,627 )
USD 10,480,262 EUR 8,751,220 Standard Chartered Bank 1/5/21 — (210,667 )
USD 935,584 EUR 785,939 HSBC Bank USA, N.A. 1/29/21 — (25,122 )
USD 300,951 EUR 247,500 HSBC Bank USA, N.A. 1/29/21 — (1,585 )
USD 595,921 EUR 497,500 State Street Bank and Trust Company 1/29/21 — (12,206 )
USD 183,806 EUR 149,625 State Street Bank and Trust Company 1/29/21 909 —
USD 10,714,613 EUR 8,751,220 Standard Chartered Bank 2/2/21 16,443 —
USD 9,275,612 EUR 7,791,718 HSBC Bank USA, N.A. 2/26/21 — (254,614 )
USD 697,101 GBP 521,735 State Street Bank and Trust Company 2/26/21 — (16,618 )
$ 17,352 $ (537,439 )

Abbreviations:

DIP – Debtor In Possession
EURIBOR – Euro Interbank Offered Rate
LIBOR – London Interbank Offered Rate
PIK – Payment In Kind

Currency Abbreviations:

EUR – Euro
GBP – British Pound Sterling
USD – United States Dollar

26 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Statement of Assets and Liabilities (Unaudited)

Assets December 31, 2020
Unaffiliated investments, at value (identified cost, $409,627,675) $ 409,039,017
Affiliated investment, at value (identified cost, $8,028,834) 8,028,834
Cash 6,326,296
Deposits for derivatives collateral — forward foreign currency exchange contracts 470,000
Foreign currency, at value (identified cost, $88,597) 88,611
Interest and dividends receivable 1,665,605
Dividends receivable from affiliated investment 244
Receivable for investments sold 463,546
Receivable for open forward foreign currency exchange contracts 17,352
Prepaid upfront fees and other fees on notes payable 52,372
Prepaid expenses 24,445
Total assets $ 426,176,322
Liabilities
Notes payable $ 125,000,000
Payable for investments purchased 5,761,590
Payable for open forward foreign currency exchange contracts 537,439
Distributions payable 1,363,198
Payable to affiliates:
Investment adviser fee 260,000
Administration fee 87,838
Trustees’ fees 5,058
Accrued expenses 132,876
Total liabilities $ 133,147,999
Auction preferred shares (1,504 shares outstanding) at liquidation value plus cumulative unpaid
dividends $ 37,600,342
Net assets applicable to common shares $ 255,427,981
Sources of Net Assets
Common shares, $0.01 par value, unlimited number of shares authorized, 37,866,607 shares issued and outstanding $ 378,666
Additional paid-in capital 277,541,221
Accumulated loss (22,491,906 )
Net assets applicable to common shares $ 255,427,981
Net Asset Value Per Common Share
($255,427,981 ÷ 37,866,607 common shares issued and outstanding) $ 6.75

27 See Notes to Financial Statements.

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Eaton Vance

Senior Income Trust

December 31, 2020

Statement of Operations (Unaudited)

Investment Income Six Months Ended December 31, 2020
Interest and other income $ 10,880,053
Dividends 189,433
Dividends from affiliated investment 6,220
Total investment income $ 11,075,706
Expenses
Investment adviser fee $ 1,440,135
Administration fee 486,532
Trustees’ fees and expenses 15,172
Custodian fee 66,390
Transfer and dividend disbursing agent fees 9,474
Legal and accounting services 286,708
Printing and postage 52,829
Interest expense and fees 756,138
Preferred shares service fee 16,304
Miscellaneous 43,628
Total expenses $ 3,173,310
Net investment income $ 7,902,396
Realized and Unrealized Gain (Loss)
Net realized gain (loss) —
Investment transactions $ (5,034,041 )
Investment transactions — affiliated investment (1,418 )
Foreign currency transactions 220,787
Forward foreign currency exchange contracts (1,787,998 )
Net realized loss $ (6,602,670 )
Change in unrealized appreciation (depreciation) —
Investments $ 28,555,073
Foreign currency (47,062 )
Forward foreign currency exchange contracts (38,994 )
Net change in unrealized appreciation (depreciation) $ 28,469,017
Net realized and unrealized gain $ 21,866,347
Distributions to preferred shareholders $ (23,810 )
Net increase in net assets from operations $ 29,744,933

28 See Notes to Financial Statements.

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Eaton Vance

Senior Income Trust

December 31, 2020

Statements of Changes in Net Assets

Increase (Decrease) in Net Assets Six Months Ended December 31, 2020 (Unaudited) Year Ended June 30, 2020
From operations —
Net investment income $ 7,902,396 $ 14,901,933
Net realized loss (6,602,670 ) (12,608,398 )
Net change in unrealized appreciation (depreciation) 28,469,017 (18,397,484 )
Distributions to preferred shareholders (23,810 ) (639,137 )
Net increase (decrease) in net assets from operations $ 29,744,933 $ (16,743,086 )
Distributions to common shareholders $ (8,974,386 ) $ (15,525,309 )
Net increase (decrease) in net assets $ 20,770,547 $ (32,268,395 )
Net Assets Applicable to Common Shares
At beginning of period $ 234,657,434 $ 266,925,829
At end of period $ 255,427,981 $ 234,657,434

29 See Notes to Financial Statements.

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Eaton Vance

Senior Income Trust

December 31, 2020

Statement of Cash Flows (Unaudited)

Cash Flows From Operating Activities Six Months Ended December 31, 2020
Net increase in net assets from operations $ 29,744,933
Distributions to preferred shareholders 23,810
Net increase in net assets from operations excluding distributions to preferred shareholders $ 29,768,743
Adjustments to reconcile net increase in net assets from operations to net cash used in operating activities:
Investments purchased (176,166,280 )
Investments sold and principal repayments 137,722,963
Decrease in short-term investments, net 6,499,658
Net amortization/accretion of premium (discount) (1,238,837 )
Amortization of prepaid upfront fees and other fees on notes payable 145,176
Increase in interest and dividends receivable (124,309 )
Decrease in dividends receivable from affiliated investment 877
Increase in receivable for open forward foreign currency exchange contracts (7,964 )
Decrease in tax reclaims receivable 211
Decrease in prepaid expenses 4,268
Increase in payable for open forward foreign currency exchange contracts 46,958
Increase in payable to affiliate for investment adviser fee 39,879
Increase in payable to affiliate for administration fee 13,472
Increase in payable to affiliate for Trustees’ fees 5,058
Decrease in accrued expenses (191,564 )
Increase in unfunded loan commitments 516,705
Net change in unrealized (appreciation) depreciation from investments (28,555,073 )
Net realized loss from investments 5,035,459
Net cash used in operating activities $ (26,484,600 )
Cash Flows From Financing Activities
Cash distributions paid to common shareholders $ (7,611,188 )
Cash distributions paid to preferred shareholders (23,468 )
Proceeds from notes payable 55,000,000
Repayments of notes payable (25,000,000 )
Net cash provided by financing activities $ 22,365,344
Net decrease in cash and restricted cash* $ (4,119,256 )
Cash and restricted cash at beginning of period (including foreign currency) $ 11,004,163
Cash and restricted cash at end of period (including foreign currency) $ 6,884,907
Supplemental disclosure of cash flow information:
Cash paid for interest and fees on borrowings $ 738,722
  • Includes net change in unrealized appreciation (depreciation) on foreign currency of $(1,568).

30 See Notes to Financial Statements.

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Eaton Vance

Senior Income Trust

December 31, 2020

Statement of Cash Flows (Unaudited) — continued

The following table provides a reconciliation of cash and restricted cash reported within the Statement of Assets and Liabilities that sum to the total of such amounts shown on the Statement of Cash Flows.

December 31, 2020
Cash $ 6,326,296
Deposits for derivatives collateral — forward foreign currency exchange contracts 470,000
Foreign currency 88,611
Total cash and restricted cash as shown on the Statement of Cash Flows $ 6,884,907

31 See Notes to Financial Statements.

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Eaton Vance

Senior Income Trust

December 31, 2020

Financial Highlights

Selected data for a common share outstanding during the periods stated

Six Months Ended December 31, 2020 (Unaudited) Year Ended June 30,
2020 2019 2018 2017 2016
Net asset value — Beginning of period (Common shares) $ 6.200 $ 7.050 $ 7.180 $ 7.150 $ 6.650 $ 7.020
Income (Loss) From Operations
Net investment income (1) $ 0.209 $ 0.394 $ 0.410 $ 0.385 $ 0.404 $ 0.422
Net realized and unrealized gain (loss) 0.579 (0.817 ) (0.172 ) 0.038 0.436 (0.371 )
Distributions to preferred shareholders —
From net investment income (1) (0.001 ) (0.017 ) (0.031 ) (0.028 ) (0.014 ) (0.009 )
Discount on redemption and repurchase of auction preferred shares (1) — — 0.051 — 0.064 —
Total income (loss) from operations $ 0.787 $ (0.440 ) $ 0.258 $ 0.395 $ 0.890 $ 0.042
Less Distributions to Common Shareholders
From net investment income $ (0.237 ) $ (0.410 ) $ (0.388 ) $ (0.365 ) $ (0.390 ) $ (0.412 )
Total distributions to common shareholders $ (0.237 ) $ (0.410 ) $ (0.388 ) $ (0.365 ) $ (0.390 ) $ (0.412 )
Net asset value — End of period (Common shares) $ 6.750 $ 6.200 $ 7.050 $ 7.180 $ 7.150 $ 6.650
Market value — End of period (Common shares) $ 6.360 $ 5.330 $ 6.230 $ 6.380 $ 6.650 $ 6.010
Total Investment Return on Net Asset Value (2) 13.18 % (3) (5.64 )% 4.46 % (4) 6.12 % 14.02 % (5) 1.57 %
Total Investment Return on Market Value (2) 24.05 % (3) (8.20 )% 3.88 % 1.39 % 17.34 % 3.77 %

32 See Notes to Financial Statements.

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Eaton Vance

Senior Income Trust

December 31, 2020

Financial Highlights — continued

Selected data for a common share outstanding during the periods stated

Ratios/Supplemental Data Six Months Ended December 31, 2020 (Unaudited) 2020 2019 2018 2017 2016
Net assets applicable to common shares, end of period (000’s omitted) $ 255,428 $ 234,657 $ 266,926 $ 272,016 $ 270,810 $ 251,789
Ratios (as a percentage of average daily net assets applicable to common shares): (6)†
Expenses excluding interest and fees 1.95 % (7) 1.73 % 1.73 % 1.82 % 1.87 % 1.96 %
Interest and fee expense (8) 0.61 % (7) 1.19 % 1.40 % 0.83 % 0.52 % 0.28 %
Total expenses 2.56 % (7) 2.92 % 3.13 % 2.65 % 2.39 % 2.24 %
Net investment income 6.38 % (7) 5.93 % 5.74 % 5.36 % 5.75 % 6.38 %
Portfolio Turnover 15 % (3) 57 % 26 % 34 % 42 % 31 %
Senior Securities:
Total notes payable outstanding (in 000’s) $ 125,000 $ 95,000 $ 103,000 $ 93,000 $ 92,000 $ 25,000
Asset coverage per $1,000 of notes payable (9) $ 3,344 $ 3,866 $ 3,957 $ 4,587 $ 4,613 $ 15,472
Total preferred shares outstanding 1,504 1,504 1,504 2,464 2,464 4,400
Asset coverage per preferred share (10) $ 64,272 $ 69,242 $ 72,464 $ 68,989 $ 69,078 $ 71,629
Involuntary liquidation preference per preferred
share (11) $ 25,000 $ 25,000 $ 25,000 $ 25,000 $ 25,000 $ 25,000
Approximate market value per preferred share (11) $ 25,000 $ 25,000 $ 25,000 $ 25,000 $ 25,000 $ 25,000

(1) Computed using average common shares outstanding.

(2) Returns are historical and are calculated by determining the percentage change in net asset value or market value with all distributions reinvested. Distributions are assumed to be reinvested at prices obtained under the Trust’s dividend reinvestment plan.

(3) Not annualized.

(4) The total return based on net asset value reflects the impact of the tender and repurchase by the Trust of a portion of its Auction Preferred Shares at 92% of the per share liquidation preference. Absent this transaction, the total return based on net asset value would have been 3.71%.

(5) The total return based on net asset value reflects the impact of the tender and repurchase by the Trust of a portion of its Auction Preferred Shares at 95% of the per share liquidation preference. Absent this transaction, the total return based on net asset value would have been 13.00%.

(6) Ratios do not reflect the effect of dividend payments to preferred shareholders.

(7) Annualized.

(8) Interest and fee expense relates to the notes payable to partially redeem the Trust’s Auction Preferred Shares and/or to fund investments (see Note 9).

(9) Calculated by subtracting the Trust’s total liabilities (not including the notes payable and preferred shares) from the Trust’s total assets, and dividing the result by the notes payable balance in thousands.

(10) Calculated by subtracting the Trust’s total liabilities (not including the notes payable and preferred shares) from the Trust’s total assets, dividing the result by the sum of the value of the notes payable and liquidation value of the preferred shares, and multiplying the result by the liquidation value of one preferred share. Such amount equates to 257%, 277%, 290%, 276%, 276% and 287% at December 31, 2020 and June 30, 2020, 2019, 2018, 2017 and 2016, respectively.

(11) Plus accumulated and unpaid dividends.

† Ratios based on net assets applicable to common shares plus preferred shares and borrowings are presented below. Ratios do not reflect the effect of dividend payments to preferred shareholders and exclude the effect of custody fee credits, if any. Ratios for periods less than one year are annualized.

2020 2019 2018 2017 2016
Expenses excluding interest and fees 1.24 % 1.11 % 1.12 % 1.17 % 1.21 % 1.21 %
Interest and fee expense 0.39 % 0.76 % 0.91 % 0.54 % 0.34 % 0.17 %
Total expenses 1.63 % 1.87 % 2.03 % 1.71 % 1.55 % 1.38 %
Net investment income 4.05 % 3.81 % 3.73 % 3.46 % 3.72 % 3.93 %

33 See Notes to Financial Statements.

Table of Contents

Eaton Vance

Senior Income Trust

December 31, 2020

Notes to Financial Statements (Unaudited)

1 Significant Accounting Policies

Eaton Vance Senior Income Trust (the Trust) is a Massachusetts business trust registered under the Investment Company Act of 1940, as amended (the 1940 Act), as a diversified, closed-end management investment company. The Trust’s investment objective is to provide a high level of current income, consistent with the preservation of capital, by investing primarily in senior, secured floating-rate loans.

The following is a summary of significant accounting policies of the Trust. The policies are in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP). The Trust is an investment company and follows accounting and reporting guidance in the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946.

A Investment Valuation — The following methodologies are used to determine the market value or fair value of investments.

Senior Floating-Rate Loans. Interests in senior floating-rate loans (Senior Loans) for which reliable market quotations are readily available are valued generally at the average mean of bid and ask quotations obtained from a third party pricing service. Other Senior Loans are valued at fair value by the investment adviser under procedures approved by the Trustees. In fair valuing a Senior Loan, the investment adviser utilizes one or more of the valuation techniques described in (i) through (iii) below to assess the likelihood that the borrower will make a full repayment of the loan underlying such Senior Loan relative to yields on other Senior Loans issued by companies of comparable credit quality. If the investment adviser believes that there is a reasonable likelihood of full repayment, the investment adviser will determine fair value using a matrix pricing approach that considers the yield on the Senior Loan. If the investment adviser believes there is not a reasonable likelihood of full repayment, the investment adviser will determine fair value using analyses that include, but are not limited to: (i) a comparison of the value of the borrower’s outstanding equity and debt to that of comparable public companies; (ii) a discounted cash flow analysis; or (iii) when the investment adviser believes it is likely that a borrower will be liquidated or sold, an analysis of the terms of such liquidation or sale. In certain cases, the investment adviser will use a combination of analytical methods to determine fair value, such as when only a portion of a borrower’s assets are likely to be sold. In conducting its assessment and analyses for purposes of determining fair value of a Senior Loan, the investment adviser will use its discretion and judgment in considering and appraising relevant factors. Fair value determinations are made by the portfolio managers of the Trust based on information available to such managers. The portfolio managers of other funds managed by the investment adviser that invest in Senior Loans may not possess the same information about a Senior Loan borrower as the portfolio managers of the Trust. At times, the fair value of a Senior Loan determined by the portfolio managers of other funds managed by the investment adviser that invest in Senior Loans may vary from the fair value of the same Senior Loan determined by the portfolio managers of the Trust. The fair value of each Senior Loan is periodically reviewed and approved by the investment adviser’s Valuation Committee and by the Trustees based upon procedures approved by the Trustees. Junior Loans (i.e., subordinated loans and second lien loans) are valued in the same manner as Senior Loans.

Debt Obligations. Debt obligations are generally valued on the basis of valuations provided by third party pricing services, as derived from such services’ pricing models. Inputs to the models may include, but are not limited to, reported trades, executable bid and ask prices, broker/dealer quotations, prices or yields of securities with similar characteristics, interest rates, anticipated prepayments, benchmark curves or information pertaining to the issuer, as well as industry and economic events. The pricing services may use a matrix approach, which considers information regarding securities with similar characteristics to determine the valuation for a security. Short-term debt obligations purchased with a remaining maturity of sixty days or less for which a valuation from a third party pricing service is not readily available may be valued at amortized cost, which approximates fair value.

Equity Securities. Equity securities listed on a U.S. securities exchange generally are valued at the last sale or closing price on the day of valuation or, if no sales took place on such date, at the mean between the closing bid and ask prices on the exchange where such securities are principally traded. Equity securities listed on the NASDAQ Global or Global Select Market generally are valued at the NASDAQ official closing price. Unlisted or listed securities for which closing sales prices or closing quotations are not available are valued at the mean between the latest available bid and ask prices or, in the case of preferred equity securities that are not listed or traded in the over-the-counter market, by a third party pricing service that uses various techniques that consider factors including, but not limited to, prices or yields of securities with similar characteristics, benchmark yields, broker/dealer quotes, quotes of underlying common stock, issuer spreads, as well as industry and economic events.

Derivatives. Forward foreign currency exchange contracts are generally valued at the mean of the average bid and average ask prices that are reported by currency dealers to a third party pricing service at the valuation time. Such third party pricing service valuations are supplied for specific settlement periods and the Trust’s forward foreign currency exchange contracts are valued at an interpolated rate between the closest preceding and subsequent settlement period reported by the third party pricing service.

Foreign Securities and Currencies. Foreign securities and currencies are valued in U.S. dollars, based on foreign currency exchange rate quotations supplied by a third party pricing service. The pricing service uses a proprietary model to determine the exchange rate. Inputs to the model include reported trades and implied bid/ask spreads.

Affiliated Fund. The Trust may invest in Eaton Vance Cash Reserves Fund, LLC (Cash Reserves Fund), an affiliated investment company managed by Eaton Vance Management (EVM). While Cash Reserves Fund is not a registered money market mutual fund, it conducts all of its investment activities in accordance with the requirements of Rule 2a-7 under the 1940 Act. Investments in Cash Reserves Fund are valued at the closing net asset value per unit on the valuation day. Cash Reserves Fund generally values its investment securities based on available market quotations provided by a third party pricing service.

Fair Valuation. Investments for which valuations or market quotations are not readily available or are deemed unreliable are valued at fair value using methods determined in good faith by or at the direction of the Trustees of the Trust in a manner that most fairly reflects the security’s “fair value”, which is the amount that the Trust might reasonably expect to receive for the security upon its current sale in the ordinary course. Each such determination is based

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Senior Income Trust

December 31, 2020

Notes to Financial Statements (Unaudited) — continued

on a consideration of relevant factors, which are likely to vary from one pricing context to another. These factors may include, but are not limited to, the type of security, the existence of any contractual restrictions on the security’s disposition, the price and extent of public trading in similar securities of the issuer or of comparable companies or entities, quotations or relevant information obtained from broker/dealers or other market participants, information obtained from the issuer, analysts, and/or the appropriate stock exchange (for exchange-traded securities), an analysis of the company’s or entity’s financial statements, and an evaluation of the forces that influence the issuer and the market(s) in which the security is purchased and sold.

B Investment Transactions — Investment transactions for financial statement purposes are accounted for on a trade date basis. Realized gains and losses on investments sold are determined on the basis of identified cost.

C Income — Interest income is recorded on the basis of interest accrued, adjusted for amortization of premium or accretion of discount. Fees associated with loan amendments are recognized immediately. Dividend income is recorded on the ex-dividend date for dividends received in cash and/or securities. Distributions from investment companies are recorded as dividend income, capital gains or return of capital based on the nature of the distribution.

D Federal Taxes — The Trust’s policy is to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies and to distribute to shareholders each year substantially all of its net investment income, and all or substantially all of its net realized capital gains. Accordingly, no provision for federal income or excise tax is necessary.

As of December 31, 2020, the Trust had no uncertain tax positions that would require financial statement recognition, de-recognition, or disclosure. The Trust files a U.S. federal income tax return annually after its fiscal year-end, which is subject to examination by the Internal Revenue Service for a period of three years from the date of filing.

E Foreign Currency Translation — Investment valuations, other assets, and liabilities initially expressed in foreign currencies are translated each business day into U.S. dollars based upon current exchange rates. Purchases and sales of foreign investment securities and income and expenses denominated in foreign currencies are translated into U.S. dollars based upon currency exchange rates in effect on the respective dates of such transactions. Recognized gains or losses on investment transactions attributable to changes in foreign currency exchange rates are recorded for financial statement purposes as net realized gains and losses on investments. That portion of unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed.

F Unfunded Loan Commitments — The Trust may enter into certain loan agreements all or a portion of which may be unfunded. The Trust is obligated to fund these commitments at the borrower’s discretion. These commitments are disclosed in the accompanying Portfolio of Investments. At December 31, 2020, the Trust had sufficient cash and/or securities to cover these commitments.

G Use of Estimates — The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expense during the reporting period. Actual results could differ from those estimates.

H Indemnifications — Under the Trust’s organizational documents, its officers and Trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the Trust. Under Massachusetts law, if certain conditions prevail, shareholders of a Massachusetts business trust (such as the Trust) could be deemed to have personal liability for the obligations of the Trust. However, the Trust’s Declaration of Trust contains an express disclaimer of liability on the part of Trust shareholders and the By-laws provide that the Trust shall assume, upon request by the shareholder, the defense on behalf of any Trust shareholders. Moreover, the By-laws also provide for indemnification out of Trust property of any shareholder held personally liable solely by reason of being or having been a shareholder for all loss or expense arising from such liability. Additionally, in the normal course of business, the Trust enters into agreements with service providers that may contain indemnification clauses. The Trust’s maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Trust that have not yet occurred.

I Forward Foreign Currency Exchange Contracts — The Trust may enter into forward foreign currency exchange contracts for the purchase or sale of a specific foreign currency at a fixed price on a future date. The forward foreign currency exchange contracts are adjusted by the daily exchange rate of the underlying currency and any gains or losses are recorded as unrealized until such time as the contracts have been closed. Risks may arise upon entering these contracts from the potential inability of counterparties to meet the terms of their contracts and from movements in the value of a foreign currency relative to the U.S. dollar.

J Interim Financial Statements — The interim financial statements relating to December 31, 2020 and for the six months then ended have not been audited by an independent registered public accounting firm, but in the opinion of the Trust’s management, reflect all adjustments, consisting only of normal recurring adjustments, necessary for the fair presentation of the financial statements.

2 Auction Preferred Shares

The Trust issued Auction Preferred Shares (APS) on July 27, 2001 in a public offering. Dividends on the APS, which accrue daily, are cumulative at rates which are reset every seven days by an auction, unless a special dividend period has been set. Series of APS are identical in all respects except for the reset dates of the dividend rates. If the APS auctions do not successfully clear, the dividend payment rate over the next period for the APS holders is set at a specified maximum applicable rate until such time as the APS auctions are successful. Auctions have not cleared since February 13, 2008 and the rate

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Senior Income Trust

December 31, 2020

Notes to Financial Statements (Unaudited) — continued

since that date has been the maximum applicable rate (see Note 3). The maximum applicable rate on the APS is 125% of the “AA” Financial Composite Commercial Paper Rate at the date of the auction. The stated spread over the reference benchmark rate is determined based on the credit rating of the APS.

The number of APS issued and outstanding as of December 31, 2020 is as follows:

Series A 752
Series B 752

The APS are redeemable at the option of the Trust at a redemption price equal to $25,000 per share, plus accumulated and unpaid dividends, on any dividend payment date. The APS are also subject to mandatory redemption at a redemption price equal to $25,000 per share, plus accumulated and unpaid dividends, if the Trust is in default for an extended period on its asset maintenance requirements with respect to the APS. If the dividends on the APS remain unpaid in an amount equal to two full years’ dividends, the holders of the APS as a class have the right to elect a majority of the Board of Trustees. In general, the holders of the APS and the common shares have equal voting rights of one vote per share, except that the holders of the APS, as a separate class, have the right to elect at least two members of the Board of Trustees. The APS have a liquidation preference of $25,000 per share, plus accumulated and unpaid dividends. The Trust is required to maintain certain asset coverage with respect to the APS as defined in the Trust’s By-Laws and the 1940 Act. The Trust pays an annual fee up to 0.15% of the liquidation value of the APS to broker/dealers as a service fee if the auctions are unsuccessful; otherwise, the annual fee is 0.25%.

3 Distributions to Shareholders and Income Tax Information

The Trust intends to make monthly distributions of net investment income to common shareholders, after payment of any dividends on any outstanding APS. In addition, at least annually, the Trust intends to distribute all or substantially all of its net realized capital gains. Distributions to common shareholders are recorded on the ex-dividend date. Distributions to preferred shareholders are recorded daily and are payable at the end of each dividend period. The dividend rates for the APS at December 31, 2020, and the amount of dividends accrued (including capital gains, if any) to APS shareholders, average APS dividend rates (annualized), and dividend rate ranges for the six months then ended were as follows:

Series A 0.13 % Dividends Accrued to APS Shareholders — $ 12,938 0.11 % 0.09–0.13
Series B 0.10 10,872 0.11 0.10–0.14

Beginning February 13, 2008 and consistent with the patterns in the broader market for auction-rate securities, the Trust’s APS auctions were unsuccessful in clearing due to an imbalance of sell orders over bids to buy the APS. As a result, the dividend rates of the APS were reset to the maximum applicable rates. The table above reflects such maximum dividend rate for each series as of December 31, 2020.

Distributions to shareholders are determined in accordance with income tax regulations, which may differ from U.S. GAAP. As required by U.S. GAAP, only distributions in excess of tax basis earnings and profits are reported in the financial statements as a return of capital. Permanent differences between book and tax accounting relating to distributions are reclassified to paid-in capital. For tax purposes, distributions from short-term capital gains are considered to be from ordinary income.

At June 30, 2020, the Trust, for federal income tax purposes, had deferred capital losses of $14,226,696 which would reduce its taxable income arising from future net realized gains on investment transactions, if any, to the extent permitted by the Internal Revenue Code, and thus would reduce the amount of distributions to shareholders, which would otherwise be necessary to relieve the Trust of any liability for federal income or excise tax. The deferred capital losses are treated as arising on the first day of the Trust’s next taxable year and retain the same short-term or long-term character as when originally deferred. Of the deferred capital losses at June 30, 2020, $3,995,102 are short-term and $10,231,594 are long-term.

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Senior Income Trust

December 31, 2020

Notes to Financial Statements (Unaudited) — continued

The cost and unrealized appreciation (depreciation) of investments, including open derivative contracts, of the Trust at December 31, 2020, as determined on a federal income tax basis, were as follows:

Aggregate cost $
Gross unrealized appreciation $ 10,303,044
Gross unrealized depreciation (11,458,838 )
Net unrealized depreciation $ (1,155,794 )

4 Investment Adviser Fee and Other Transactions with Affiliates

The investment adviser fee is earned by EVM, a wholly-owned subsidiary of Eaton Vance Corp., as compensation for management and investment advisory services rendered to the Trust. Pursuant to the investment advisory agreement between the Trust and EVM, the investment advisory fee payable by the Trust is 0.85% of the Trust’s average weekly gross assets and is payable monthly. Pursuant to a fee reduction agreement between the Trust and EVM that commenced on May 1, 2010, the annual investment adviser fee is reduced by 0.01% every May 1 thereafter for the next twenty-nine years. The Trust’s advisory fee is currently computed at an annual rate of 0.74% of its average weekly gross assets and is payable monthly. The fee reduction cannot be terminated without the consent of the Trustees and shareholders. For the six months ended December 31, 2020, the Trust’s investment adviser fee totaled $1,440,135. The Trust invests its cash in Cash Reserves Fund. EVM does not currently receive a fee for advisory services provided to Cash Reserves Fund. The administration fee is earned by EVM for administering the business affairs of the Trust and is computed at an annual rate of 0.25% of the Trust’s average weekly gross assets. For the six months ended December 31, 2020, the administration fee amounted to $486,532.

Trustees and officers of the Trust who are members of EVM’s organization receive remuneration for their services to the Trust out of the investment adviser fee. Trustees of the Trust who are not affiliated with EVM may elect to defer receipt of all or a percentage of their annual fees in accordance with the terms of the Trustees Deferred Compensation Plan. For the six months ended December 31, 2020, no significant amounts have been deferred. Certain officers and Trustees of the Trust are officers of EVM.

5 Purchases and Sales of Investments

Purchases and sales of investments, other than short-term obligations and including maturities, paydowns and principal repayments on Senior Loans, aggregated $81,306,536 and $58,230,239, respectively, for the six months ended December 31, 2020.

6 Common Shares of Beneficial Interest and Shelf Offering

The Trust may issue common shares pursuant to its dividend reinvestment plan. There were no common shares issued by the Trust for the six months ended December 31, 2020 and the year ended June 30, 2020.

In November 2013, the Board of Trustees initially approved a share repurchase program for the Trust. Pursuant to the reauthorization of the share repurchase program by the Board of Trustees in March 2019, the Trust is authorized to repurchase up to 10% of its common shares outstanding as of the last day of the prior calendar year at market prices when shares are trading at a discount to net asset value. The share repurchase program does not obligate the Trust to purchase a specific amount of shares. There were no repurchases of common shares by the Trust for the six months ended December 31, 2020 and the year ended June 30, 2020.

Pursuant to a registration statement filed with the SEC, the Trust is authorized to issue up to an additional 4,551,438 common shares through an equity shelf offering program (the “shelf offering”). Under the shelf offering, the Trust, subject to market conditions, may raise additional capital from time to time and in varying amounts and offering methods at a net price at or above the Trust’s net asset value per common share. During the six months ended December 31, 2020 and the year ended June 30, 2020, there were no shares sold by the Trust pursuant to its shelf offering.

According to filings made on Schedule 13D and 13G pursuant to Sections 13(d) and 13(g) of the Securities Exchange Act of 1934, as amended, one entity and one individual affiliated with such entity together owned 21.2% of the Trust’s common shares.

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7 Restricted Securities

At December 31, 2020, the Trust owned the following securities which were restricted as to public resale and not registered under the Securities Act of 1933 (excluding Rule 144A securities). The Trust has various registration rights (exercisable under a variety of circumstances) with respect to these securities. The value of these securities is determined based on valuations provided by brokers when available, or if not available, they are valued at fair value using methods determined in good faith by or at the direction of the Trustees.

Description Cost Value
Common Stocks
Nine Point Energy Holdings, Inc. 7/15/14 325 $ 15,070 $ 0
Convertible Preferred Stocks
Nine Point Energy Holdings, Inc., Series A, 12.00% 5/26/17 5 5,000 0
Total Restricted Securities $ 20,070 $ 0

8 Financial Instruments

The Trust may trade in financial instruments with off-balance sheet risk in the normal course of its investing activities. These financial instruments may include forward foreign currency exchange contracts and may involve, to a varying degree, elements of risk in excess of the amounts recognized for financial statement purposes. The notional or contractual amounts of these instruments represent the investment the Trust has in particular classes of financial instruments and do not necessarily represent the amounts potentially subject to risk. The measurement of the risks associated with these instruments is meaningful only when all related and offsetting transactions are considered. A summary of obligations under these financial instruments at December 31, 2020 is included in the Portfolio of Investments. At December 31, 2020, the Trust had sufficient cash and/or securities to cover commitments under these contracts.

The Trust is subject to foreign exchange risk in the normal course of pursuing its investment objective. Because the Trust holds foreign currency denominated investments, the value of these investments and related receivables and payables may change due to future changes in foreign currency exchange rates. To hedge against this risk, the Trust enters into forward foreign currency exchange contracts.

The Trust enters into forward foreign currency exchange contracts that may contain provisions whereby the counterparty may terminate the contract under certain conditions, including but not limited to a decline in the Trust’s net assets below a certain level over a certain period of time, which would trigger a payment by the Trust for those derivatives in a liability position. At December 31, 2020, the fair value of derivatives with credit-related contingent features in a net liability position was $537,439. The aggregate fair value of assets pledged as collateral by the Trust for such liability was $470,000 at December 31, 2020.

The over-the-counter (OTC) derivatives in which the Trust invests are subject to the risk that the counterparty to the contract fails to perform its obligations under the contract. To mitigate this risk, the Trust has entered into an International Swaps and Derivatives Association, Inc. Master Agreement (“ISDA Master Agreement”) or similar agreement with substantially all its derivative counterparties. An ISDA Master Agreement is a bilateral agreement between the Trust and a counterparty that governs certain OTC derivatives and typically contains, among other things, set-off provisions in the event of a default and/or termination event as defined under the relevant ISDA Master Agreement. Under an ISDA Master Agreement, the Trust may, under certain circumstances, offset with the counterparty certain derivative financial instruments’ payables and/or receivables with collateral held and/or posted and create one single net payment. The provisions of the ISDA Master Agreement typically permit a single net payment in the event of default including the bankruptcy or insolvency of the counterparty. However, bankruptcy or insolvency laws of a particular jurisdiction may impose restrictions on or prohibitions against the right of offset in bankruptcy or insolvency. Certain ISDA Master Agreements allow counterparties to OTC derivatives to terminate derivative contracts prior to maturity in the event the Trust’s net assets decline by a stated percentage or the Trust fails to meet the terms of its ISDA Master Agreements, which would cause the counterparty to accelerate payment by the Trust of any net liability owed to it.

The collateral requirements for derivatives traded under an ISDA Master Agreement are governed by a Credit Support Annex to the ISDA Master Agreement. Collateral requirements are determined at the close of business each day and are typically based on changes in market values for each transaction under an ISDA Master Agreement and netted into one amount for such agreement. Generally, the amount of collateral due from or to a counterparty is subject to a minimum transfer threshold amount before a transfer is required, which may vary by counterparty. Collateral pledged for the benefit of the Trust and/or counterparty is held in segregated accounts by the Trust’s custodian and cannot be sold, re-pledged, assigned or otherwise used while pledged. The portion of such collateral representing cash, if any, is reflected as deposits for derivatives collateral and, in the case of cash pledged by a counterparty for the benefit of the Trust, a corresponding liability on the Statement of Assets and Liabilities. Securities pledged by the Trust as collateral, if any, are identified as such in the Portfolio of Investments.

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Notes to Financial Statements (Unaudited) — continued

The fair value of open derivative instruments (not considered to be hedging instruments for accounting disclosure purposes) and whose primary underlying risk exposure is foreign exchange risk at December 31, 2020 was as follows:

Derivative Fair Value — Asset Derivative (1) Liability Derivative (2)
Forward foreign currency exchange contracts $ 17,352 $ (537,439 )

(1) Statement of Assets and Liabilities location: Receivable for open forward foreign currency exchange contracts.

(2) Statement of Assets and Liabilities location: Payable for open forward foreign currency exchange contracts.

The Trust’s derivative assets and liabilities at fair value by type, which are reported gross in the Statement of Assets and Liabilities, are presented in the table above. The following tables present the Trust’s derivative assets and liabilities by counterparty, net of amounts available for offset under a master netting agreement and net of the related collateral received by the Trust for such assets and pledged by the Trust for such liabilities as of December 31, 2020.

Counterparty Derivative Assets Subject to Master Netting Agreement Derivatives Available for Offset Non-cash Collateral Received (a) Cash Collateral Received (a) Net Amount of Derivative Assets (b)
Standard Chartered Bank $ 16,443 $ (16,443 ) $ — $ — $ —
State Street Bank and Trust Company 909 (909 ) — — —
$ 17,352 $ (17,352 ) $ — $ — $ —
Counterparty Derivative Liabilities Subject to Master Netting Agreement Derivatives Available for Offset Non-cash Collateral Pledged (a) Cash Collateral Pledged (a) Net Amount of Derivative Liabilities (c)
HSBC Bank USA, N.A. $ (281,321 ) $ — $ — $ 281,321 $ —
Standard Chartered Bank (227,294 ) 16,443 — 130,000 (80,851 )
State Street Bank and Trust Company (28,824 ) 909 — — (27,915 )
$ (537,439 ) $ 17,352 $ — $ 411,321 $ (108,766 )

(a) In some instances, the total collateral received and/or pledged may be more than the amount shown due to overcollateralization.

(b) Net amount represents the net amount due from the counterparty in the event of default.

(c) Net amount represents the net amount payable to the counterparty in the event of default.

The effect of derivative instruments (not considered to be hedging instruments for accounting disclosure purposes) on the Statement of Operations and whose primary underlying risk exposure is foreign exchange risk for the six months ended December 31, 2020 was as follows:

| Derivative — Forward foreign currency exchange contracts | Realized Gain (Loss) on Derivatives Recognized in Income (1) — $ (1,787,998 | ) | Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in
Income (2) — $ (38,994 | ) |
| --- | --- | --- | --- | --- |

(1) Statement of Operations location: Net realized gain (loss) – Forward foreign currency exchange contracts.

(2) Statement of Operations location: Change in unrealized appreciation (depreciation) – Forward foreign currency exchange contracts.

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Senior Income Trust

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The average notional amount of forward foreign currency exchange contracts (based on the absolute value of notional amounts of currency purchased and currency sold) outstanding during the six months ended December 31, 2020, which is indicative of the volume of this derivative type, was approximately $29,693,000.

9 Revolving Credit and Security Agreement

The Trust has entered into a Revolving Credit and Security Agreement, as amended (the Agreement) with conduit lenders and a bank to borrow up to $125 million. Borrowings under the Agreement are secured by the assets of the Trust. Interest is charged at a rate above the conduits’ commercial paper issuance rate and is payable monthly. Under the terms of the Agreement, in effect through March 8, 2021, the Trust also pays a program fee of 0.85% per annum on its outstanding borrowings to administer the facility and a liquidity fee of 0.15% (0.25% if the outstanding loan amount is less than or equal to 60% of the total facility size) per annum on the unused portion of the total commitment under the Agreement. Program and liquidity fees for the six months ended December 31, 2020 totaled $467,378 and are included in interest expense and fees on the Statement of Operations. In connection with the renewal of the Agreement on March 9, 2020, the Trust paid upfront fees of $125,000 and, shortly thereafter on March 20, 2020, the Trust paid waiver fees of $156,250 in connection with a reduction of Trust net asset value during the month of March 2020 due to market volatility; these aggregate upfront and waiver fees are being amortized to interest expense through March 8, 2021. The unamortized balance as of December 31, 2020 is approximately $52,000 and is included in prepaid upfront fees and other fees on notes payable on the Statement of Assets and Liabilities. At December 31, 2020, the Trust had borrowings outstanding under the Agreement of $125,000,000 at an interest rate of 0.21%. Based on the short-term nature of the borrowings under the Agreement and the variable interest rate, the carrying amount of the borrowings at December 31, 2020 approximated its fair value. If measured at fair value, borrowings under the Agreement would have been considered as Level 2 in the fair value hierarchy (see Note 11) at December 31, 2020. For the six months ended December 31, 2020, the average borrowings under the Agreement and the average annual interest rate (excluding fees) were $103,847,826 and 0.24%, respectively.

10 Investments in Affiliated Funds

At December 31, 2020, the value of the Trust’s investment in affiliated funds was $8,028,834, which represents 3.2% of the Trust’s net assets applicable to common shares. Transactions in affiliated funds by the Trust for the six months ended December 31, 2020 were as follows:

Name of affiliated fund Value, beginning of period Purchases Sales proceeds Net realized gain (loss) Change in unrealized appreciation (depreciation) Value, end of period Dividend income
Short-Term Investments
Eaton Vance Cash Reserves Fund, LLC $ 14,529,910 $ 137,120,410 $ (143,620,068 ) $ (1,418 ) $ — $ 8,028,834 $ 6,220 8,028,834

11 Fair Value Measurements

Under generally accepted accounting principles for fair value measurements, a three-tier hierarchy to prioritize the assumptions, referred to as inputs, is used in valuation techniques to measure fair value. The three-tier hierarchy of inputs is summarized in the three broad levels listed below.

• Level 1 – quoted prices in active markets for identical investments

• Level 2 – other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

• Level 3 – significant unobservable inputs (including a fund’s own assumptions in determining the fair value of investments)

In cases where the inputs used to measure fair value fall in different levels of the fair value hierarchy, the level disclosed is determined based on the lowest level input that is significant to the fair value measurement in its entirety. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

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At December 31, 2020, the hierarchy of inputs used in valuing the Trust’s investments and open derivative instruments, which are carried at value, were as follows:

Asset Description Level 1 Level 2 Level 3* Total
Asset-Backed Securities $ — $ 20,218,411 $ — $ 20,218,411
Closed-End Funds 4,409,889 — — 4,409,889
Common Stocks 781,165 1,703,406 2,811,220 5,295,791
Convertible Preferred Stocks 93,180 — 0 93,180
Corporate Bonds & Notes — 13,178,325 — 13,178,325
Preferred Stocks — 34,634 170,838 205,472
Senior Floating-Rate Loans (Less Unfunded Loan Commitments) — 364,591,225 1,017,328 365,608,553
Warrants — — 24,487 24,487
Miscellaneous — 4,909 0 4,909
Short-Term Investments — 8,028,834 — 8,028,834
Total Investments $ 5,284,234 $ 407,759,744 $ 4,023,873 $ 417,067,851
Forward Foreign Currency Exchange Contracts $ — $ 17,352 $ — $ 17,352
Total $ 5,284,234 $ 407,777,096 $ 4,023,873 $ 417,085,203
Liability Description
Forward Foreign Currency Exchange Contracts $ — $ (537,439 ) $ — $ (537,439 )
Total $ — $ (537,439 ) $ — $ (537,439 )
  • None of the unobservable inputs for Level 3 assets, individually or collectively, had a material impact on the Trust.

Level 3 investments at the beginning and/or end of the period in relation to net assets were not significant and accordingly, a reconciliation of Level 3 assets for the six months ended December 31, 2020 is not presented.

12 Risks and Uncertainties

Risks Associated with Foreign Investments

Investing in securities issued by companies whose principal business activities are outside the United States may involve significant risks not present in domestic investments. For example, there is generally less publicly available information about foreign companies, particularly those not subject to the disclosure and reporting requirements of the U.S. securities laws. Certain foreign issuers are generally not bound by uniform accounting, auditing, and financial reporting requirements and standards of practice comparable to those applicable to domestic issuers. Investments in foreign securities also involve the risk of possible adverse changes in investment or exchange control regulations, expropriation or confiscatory taxation, limitation on the removal of funds or other assets of the Trust, political or financial instability or diplomatic and other developments which could affect such investments. Foreign securities markets, while growing in volume and sophistication, are generally not as developed as those in the United States, and securities of some foreign issuers (particularly those located in developing countries) may be less liquid and more volatile than securities of comparable U.S. companies. In general, there is less overall governmental supervision and regulation of foreign securities markets, broker/dealers and issuers than in the United States.

Credit Risk

The Trust invests primarily in below investment grade floating-rate loans, which are considered speculative because of the credit risk of their issuers. Changes in economic conditions or other circumstances are more likely to reduce the capacity of issuers of these securities to make principal and interest payments. Such companies are more likely to default on their payments of interest and principal owed than issuers of investment grade bonds. An economic downturn generally leads to a higher non-payment rate, and a loan or other debt obligation may lose significant value before a default occurs. Lower rated investments also may be subject to greater price volatility than higher rated investments. Moreover, the specific collateral used to secure a loan may decline in value or become illiquid, which would adversely affect the loan’s value.

Pandemic Risk

An outbreak of respiratory disease caused by a novel coronavirus was first detected in China in December 2019 and subsequently spread internationally. This coronavirus has resulted in closing borders, enhanced health screenings, changes to healthcare service preparation and delivery, quarantines, cancellations, disruptions to supply chains and customer activity, as well as general concern and uncertainty. Health crises caused by outbreaks, such as

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Notes to Financial Statements (Unaudited) — continued

the coronavirus outbreak, may exacerbate other pre-existing political, social and economic risks and disrupt normal market conditions and operations. The impact of this outbreak has negatively affected the worldwide economy, the economies of individual countries, individual companies, and the market in general, and may continue to do so in significant and unforeseen ways, as may other epidemics and pandemics that may arise in the future. Any such impact could adversely affect the Trust’s performance, or the performance of the securities in which the Trust invests.

13 Additional Information

On August 27, 2020, Saba Capital Master Fund, Ltd., a hedge fund (“Saba”), filed claims against the Trust in a lawsuit in Suffolk County Superior Court in Massachusetts asserting breach of contract and fiduciary duty by the Trust and certain of its affiliates, the Trust’s adviser, and the Board, following the recent implementation by the Trust of by-law amendments that (i) require trustee nominees in contested elections to obtain affirmative votes of a majority of eligible shares in order to be elected and (ii) establish certain requirements related to shares obtained in “control share” acquisitions. With respect to the Trust, Saba seeks rescission of these by-law provisions and certain related relief. As of the date these financial statements were issued, the court has not ruled on these matters.

On October 8, 2020, Morgan Stanley and Eaton Vance Corp. (“Eaton Vance”) announced that they had entered into a definitive agreement under which Morgan Stanley would acquire Eaton Vance. Under the Investment Company Act of 1940, as amended, consummation of this transaction may be deemed to result in the automatic termination of an Eaton Vance Fund’s investment advisory agreement, and, where applicable, any related sub-advisory agreement. On November 10, 2020, the Trust’s Board approved a new investment advisory agreement. Shareholders of record of the Trust at the close of business on October 29, 2020 who have voting power with respect to such shares are entitled to be present and vote at a joint special meeting of shareholders and at any adjournments or postponements thereof. The new investment advisory agreement was not approved by Trust shareholders at a joint special meeting of shareholders held on January 12, 2021. The Trust’s Board is considering what additional actions to take with respect to the Trust. The Board has approved an interim investment advisory agreement (the “Interim Agreement”) for the Trust to take effect upon the close of the transaction if Trust shareholders have not approved a new investment advisory agreement prior to the closing. The Interim Agreement would allow the Trust’s investment adviser to continue to manage the Trust for up to an additional 150 days to allow for further proxy solicitation and the Board’s consideration of different options for the Trust. While the Interim Agreement is in effect, the Trust’s investment adviser would continue to manage the Trust under the Board’s oversight. The terms of the Interim Agreement are substantially identical to those of the current investment advisory agreement except for term and escrow provisions required by applicable law.

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Annual Meeting of Shareholders (Unaudited)

The Trust held its Annual Meeting of Shareholders (“Annual Meeting”) on November 12, 2020 for the election of four members of the Trust’s board of trustees (the “Board”) to serve three-year terms ending in 2023. The Board nominated four trustee nominees: Thomas E. Faust Jr., Cynthia E. Frost, Susan J. Sutherland and, to be elected by only holders of the Trust’s auction preferred shares (“APS”), Valerie A. Mosley. Saba Capital Management, L.P. and certain of its affiliates nominated three trustee nominees: Stephen G. Flanagan, Frederic Gabriel and Christopher A. Klepps.

The following votes were cast by the Trust’s common and APS shareholders, voting together as a single class:

Nominees for Trustee — For Withheld
Thomas E. Faust Jr. 11,597,278 358,191
Cynthia E. Frost 5,805,611 6,149,858
Susan J. Sutherland 5,799,694 6,155,776
Stephen G. Flanagan 12,539,415 309,300
Frederic Gabriel 12,541,920 306,795
Christopher A. Klepps 12,541,838 306,877

Pursuant to the Trust’s Amended and Restated By-Laws, when the number of candidates exceeds the number of Trustees to be elected, a candidate must receive the affirmative vote of a majority of the Fund’s shares outstanding and entitled to vote in order to be elected. If none of the candidates receives the requisite vote, the incumbent Trustees remain in office for a new three-year term. Because none of the candidates presented for election by the Trust’s common and APS shareholders voting together as a single class received the requisite vote, incumbent Class I Trustees Thomas E. Faust Jr., Cynthia E. Frost and Susan J. Sutherland remain in office for a new three-year term as Class I Trustees.

The following votes were cast by the Trust’s APS shareholders, voting separately as a single class:

Nominee for Trustee — For Withheld
Valerie A. Mosley 692 35

Incumbent Class I Trustee Valerie A. Mosley was elected to a new term as a Class I Trustee by the Trust’s APS shareholders.

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Board of Trustees’ Contract Approval

Overview of the Contract Review Process

Even though the following description of the Board’s (as defined below) consideration of investment advisory agreements covers multiple funds, for purposes of this shareholder report, the description is only relevant as to Eaton Vance Senior Income Trust.

At a meeting held on November 10, 2020 (the “November Meeting”), the Board of Trustees (each, a “Board” and, collectively, the “Board”) of each closed-end Fund (each, a “Fund” and, collectively, the “Funds” (1) ) managed by Eaton Vance Management (“Eaton Vance”), including a majority of the Board members (the “Independent Trustees”) who are not “interested persons” (as defined in the Investment Company Act of 1940 (the “1940 Act”)) of the Funds or Eaton Vance, voted to approve a new investment advisory agreement between each Fund and Eaton Vance, each of which is intended to go into effect upon the completion of the Transaction (as defined below) (each, a “New Agreement” and, collectively, the “New Agreements”). The Board’s evaluative process is more fully described below. In voting its approval of the New Agreements at the November Meeting, the Board relied on an order issued by the Securities and Exchange Commission in response to the impacts of the COVID-19 pandemic that provided temporary relief from the in-person meeting requirements under Section 15 of the 1940 Act.

In voting its approval of the New Agreements, the Board of each Fund relied upon the recommendation of its Contract Review Committee, which is a committee comprised exclusively of Independent Trustees. Prior to and during meetings leading up to the November Meeting, the Contract Review Committee reviewed and discussed information furnished by Eaton Vance and Morgan Stanley, as requested by the Independent Trustees, that the Contract Review Committee considered reasonably necessary to evaluate the terms of the New Agreements and to form its recommendations. Such information included, among other things, the terms and anticipated impacts of Morgan Stanley’s pending acquisition of Eaton Vance Corp. (the “Transaction”) on the Funds and their shareholders. In addition to considering information furnished specifically to evaluate the impact of the Transaction on the Funds and their respective shareholders, the Board and its Contract Review Committee also considered information furnished for prior meetings of the Board and its committees, including, but not limited to, information provided in connection with the annual contract review process for the Funds, which most recently culminated in April 2020 (the “2020 Annual Approval Process”).

The Board of each Fund, including the Independent Trustees, concluded that the applicable New Agreement, including the fees payable thereunder, was fair and reasonable, and it voted to approve the New Agreement and to recommend that shareholders do so as well.

Shortly after the announcement of the Transaction, the Board, including all of the Independent Trustees, met with senior representatives from Eaton Vance and Morgan Stanley at its meeting held on October 13, 2020 to discuss certain aspects of the Transaction and the expected impacts of the Transaction on the Funds and their shareholders. As part of the Board’s evaluation process, counsel to the Independent Trustees, on behalf of the Contract Review Committee, requested additional information to assist the Independent Trustees in their evaluation of the New Agreements and the implications of the Transaction, as well as other contractual arrangements that may be affected by the Transaction. The Contract Review Committee considered information furnished by Eaton Vance and Morgan Stanley and their respective affiliates during meetings on November 5, 2020 and November 10, 2020.

The Contract Review Committee again met with senior representatives of Eaton Vance and Morgan Stanley at its meeting on November 10, 2020, to further discuss the approval of the New Agreements. The representatives from Eaton Vance and Morgan Stanley each made presentations to, and responded to questions from, the Independent Trustees. The Contract Review Committee considered Eaton Vance’s and Morgan Stanley’s responses related to the Transaction and specifically to the Funds, as well as information received in connection with the 2020 Annual Approval Process, with respect to its evaluation of the New Agreements. Among other information, the Board considered:

Information about the Transaction and its Terms

• Information about the material terms and conditions, and expected impact, of the Transaction that relate to the Funds, including the expected impact on the businesses conducted by Eaton Vance with respect to the Funds and, with respect to those Funds (including Eaton Vance Senior Income Trust) that have shares registered under the Securities Act of 1933, as amended, pursuant to shelf registration statements, Eaton Vance Distributors, Inc. as the distributor of those shares;

• Information about the advantages of the Transaction as they relate to the Funds and their shareholders;

• A commitment that the Funds would not bear any expenses, directly or indirectly, in connection with the Transaction, including with respect to the solicitation of shareholder approval of the New Agreements;

• A commitment that, for a period of three years after the Closing, at least 75% of each Fund’s Board members must not be “interested persons” (as defined in the 1940 Act) of the investment adviser (or predecessor investment adviser, if applicable) pursuant to Section 15(f)(1)(A) of the 1940 Act;

• A commitment that Morgan Stanley would use its reasonable best efforts to ensure that it did not impose any “unfair burden” (as that term is used in section 15(f)(1)(B) of the 1940 Act) on the Funds as a result of the Transaction;

• Information with respect to the potential impact of the Transaction on personnel and/or other resources of Eaton Vance and its affiliates, as well as any expected changes to compensation, including any retention-based compensation intended to incentivize key personnel at Eaton Vance and its affiliates;

• Information regarding any changes that are expected with respect to the Funds’ slate of officers as a result of the Transaction;

(1) References to the Funds do not include Eaton Vance Floating-Rate Income Plus Fund.

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Board of Trustees’ Contract Approval — continued

Information about Morgan Stanley

• Information about Morgan Stanley’s overall business, including information about the advisory, brokerage and related businesses that Morgan Stanley operates;

• Information about Morgan Stanley’s financial condition, including its access to capital and other resources required to support the investment advisory businesses related to the Funds;

• Information on how the Funds are expected to fit within Morgan Stanley’s overall business strategy, and any changes that Morgan Stanley contemplates implementing to the Funds in the short- or long-term following the closing of the Transaction (the “Closing”);

• Information regarding risk management functions at Morgan Stanley and its affiliates, including how existing risk management protocols and procedures may impact the Funds and/or the businesses of Eaton Vance and its affiliates as they relate to the Funds;

• Information on the anticipated benefits of the Transaction to the Funds with respect to potential additional distribution capabilities and the ability to access new markets and customer segments through Morgan Stanley’s distribution network, including, in particular, its institutional client base;

• Information regarding the financial condition and reputation of Morgan Stanley, its worldwide presence, experience as a fund sponsor and manager, commitment to maintain a high level of cooperation with, and support to, the Funds, strong client service capabilities, and relationships in the asset management industry;

Information about the New Agreements

• A representation that, after the Closing, all of the Funds will continue to be advised by Eaton Vance, and will continue under the “Eaton Vance” brand;

• Information regarding the terms of the New Agreements, including certain changes as compared to the current investment advisory agreement between each Fund and Eaton Vance (collectively, the “Current Agreements”);

• Information confirming that the fee rates payable under the New Agreements are not changed as compared to the Current Agreements;

• A representation that the New Agreements will not cause any diminution in the nature, extent and quality of services provided by Eaton Vance to the Funds and their respective shareholders, including with respect to compliance and other non-advisory services;

Information about Fund Performance, Fees and Expenses

• A report from an independent data provider comparing the investment performance of each Fund (including, as relevant, total return data, income data, Sharpe ratios and information ratios) to the investment performance of comparable funds and, as applicable, benchmark indices, over various time periods as of the 2020 Annual Approval Process, as well as performance information as of a more recent date;

• A report from an independent data provider comparing each Fund’s total expense ratio (and its components) to those of comparable funds as of the 2020 Annual Approval Process, as well as fee and expense information as of a more recent date;

• In certain instances, data regarding investment performance relative to customized groups of peer funds and blended indices identified by Eaton Vance in consultation with the Portfolio Management Committee of the Board as of the 2020 Annual Approval Process, as well as corresponding performance information as of a more recent date;

• Comparative information concerning the fees charged and services provided by Eaton Vance to each Fund in managing other accounts (which may include other mutual funds, collective investment funds and institutional accounts) using investment strategies and techniques similar to those used in managing such Fund(s), if any;

• Profitability analyses of Eaton Vance with respect to each of the Funds as of the 2020 Annual Approval Process, as well as information regarding the impact of the Transaction on profitability;

Information about Portfolio Management and Trading

• Descriptions of the investment management services currently provided and expected to be provided to each Fund after the Closing, as well as each of the Funds’ investment strategies and policies;

• The procedures and processes used to determine the fair value of Fund assets, when necessary, and actions taken to monitor and test the effectiveness of such procedures and processes;

• Information regarding any contemplated changes to the policies and practices of Eaton Vance with respect to trading, including their processes for seeking best execution of portfolio transactions;

• Information regarding the impact on trading and access to capital markets associated with the Funds’ post-Closing affiliations with Morgan Stanley and its affiliates, including potential restrictions with respect to the Funds’ ability to execute portfolio transactions with Morgan Stanley and its affiliates;

Information about Eaton Vance

• Information about the financial results and condition of Eaton Vance since the culmination of the 2020 Annual Approval Process and any material changes in financial condition that are reasonably expected to occur before and after the Closing;

• Confirmation that there are no immediately contemplated post-Closing changes to the individual investment professionals whose responsibilities include portfolio management and investment research for the Funds, and, for portfolio managers and certain other investment professionals, information relating to their responsibilities with respect to managing other mutual funds and investment accounts, as applicable post-Closing;

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Eaton Vance

Senior Income Trust

December 31, 2020

Board of Trustees’ Contract Approval — continued

• The Code of Ethics of Eaton Vance and its affiliates, together with information relating to compliance with, and the administration of, such codes;

• Policies and procedures relating to proxy voting and the handling of corporate actions and class actions;

• Information concerning the resources devoted to compliance efforts undertaken by Eaton Vance and its affiliates, including descriptions of their various compliance programs and their record of compliance;

• Information concerning the business continuity and disaster recovery plans of Eaton Vance and its affiliates;

Other Relevant Information

• Information concerning the nature, cost and character of the administrative and other non-investment advisory services provided by Eaton Vance and its affiliates;

• Information concerning oversight of the relationship with the custodian, subcustodians and fund accountants by Eaton Vance and/or administrator to each of the Funds;

• Information concerning the benefits of the closed-end fund structure, as well as, where relevant, the closed-end fund’s market prices, trading volume data, distribution rates and other relevant matters;

• Confirmation that Eaton Vance intends to continue to manage the Funds in a manner materially consistent with each Fund’s current investment objective(s) and principal investment strategies;

• Information regarding Morgan Stanley’s commitment to maintaining competitive compensation arrangements to attract and retain highly qualified personnel;

• Confirmation that Eaton Vance and Morgan Stanley will continue to keep the Board apprised of developments as the Transaction progresses and prior to and, as applicable, following the Closing;

• Confirmation that the current senior management team at Eaton Vance has indicated its strong support of the Transaction; and

• Information regarding the fact that Morgan Stanley and Eaton Vance Corp. will each derive benefits from the Transaction and that, as a result, they have a financial interest in the matters that were being considered.

As indicated above, the Board and its Contract Review Committee also considered information received at its regularly scheduled meetings throughout the year, which included information from portfolio managers and other investment professionals of Eaton Vance regarding investment and performance matters, and considered various investment and trading strategies used in pursuing the Funds’ investment objectives. The Board also received information regarding risk management techniques employed in connection with the management of the Funds. The Board and its committees evaluated issues pertaining to industry and regulatory developments, compliance procedures, fund governance and other issues with respect to the Funds, and received reports and participated in presentations provided by Eaton Vance and its affiliates with respect to such matters.

The Contract Review Committee was advised throughout the evaluation process by Goodwin Procter LLP, independent legal counsel for the Independent Trustees. The members of the Contract Review Committee, with the advice of such counsel, exercised their own business judgment in determining the material factors to be considered in evaluating the New Agreements and the weight to be given to each such factor. The conclusions reached with respect to the New Agreements were based on a comprehensive evaluation of all the information provided and not any single factor. Moreover, each Independent Trustee may have placed varying emphasis on particular factors in reaching conclusions with respect to the New Agreements.

Nature, Extent and Quality of Services

In considering whether to approve the New Agreements, the Board evaluated the nature, extent and quality of services currently provided to each Fund by Eaton Vance under the Current Agreements. In evaluating the nature, extent and quality of services to be provided by Eaton Vance under the New Agreements, the Board considered, among other information, the expected impact, if any, of the Transaction on the operations, facilities, organization and personnel of Eaton Vance, and that Morgan Stanley and Eaton Vance have advised the Board that, following the Closing, there is not expected to be any diminution in the nature, extent and quality of services provided by Eaton Vance to the Funds and their shareholders, including compliance and other non-advisory services, and that there are not expected to be any changes in portfolio management personnel as a result of the Transaction.

The Board also considered the financial resources of Morgan Stanley and Eaton Vance and the importance of having a Fund manager with, or with access to, significant organizational and financial resources. The Board considered the benefits to the Funds of being part of a larger combined organization with greater financial resources following the Closing, particularly during periods of market disruptions and volatility. In this regard, the Board considered information provided by Morgan Stanley regarding its business and operating structure, scale of operation, leadership and reputation, distribution capabilities and financial condition, as well as information on how the Funds are expected to fit within Morgan Stanley’s overall business strategy and any changes that Morgan Stanley contemplates in the short- or long-term following the Closing. The Board also noted Morgan Stanley’s and Eaton Vance’s commitment to keep the Board apprised of developments with respect to its long-term integration plans for Eaton Vance and existing Morgan Stanley affiliates and their respective personnel.

The Board considered Eaton Vance’s management capabilities, investment processes and investment performance in light of the types of investments held by each Fund, including the education, experience and number of investment professionals and other personnel who provide portfolio management, investment research, and similar services to each Fund. In particular, the Board considered the abilities and experience of Eaton Vance’s investment professionals in implementing each Fund’s investment strategies. The Board also took into account the resources dedicated to portfolio management and

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Eaton Vance

Senior Income Trust

December 31, 2020

Board of Trustees’ Contract Approval — continued

other services, the compensation methods of Eaton Vance and other factors, including the reputation and resources of Eaton Vance to recruit and retain highly qualified research, advisory and supervisory investment professionals. With respect to the recruitment and retention of key personnel, the Board noted information from Morgan Stanley and Eaton Vance regarding the benefits of joining Morgan Stanley. In addition, the Board considered the time and attention devoted to the Funds by senior management, as well as the infrastructure, operational capabilities and support staff in place to assist in the portfolio management and operations of the Funds, including the provision of administrative services. With respect to the foregoing, the Board also considered information from Eaton Vance and Morgan Stanley regarding the anticipated impact of the Transaction on such matters. The Board also considered the business-related and other risks to which Eaton Vance or its affiliates may be subject in managing the Funds and in connection with the Transaction. The Board considered the deep experience of Eaton Vance and its affiliates with managing and operating funds organized as exchange-listed closed-end funds, such as the Funds. In this regard, the Board considered, among other things, Eaton Vance’s and its affiliates’ experience with implementing leverage arrangements, monitoring and assessing trading price discounts and premiums and adhering to the requirements of securities exchanges.

The Board considered the compliance programs of Eaton Vance and relevant affiliates thereof. The Board considered compliance and reporting matters regarding, among other things, personal trading by investment professionals, disclosure of portfolio holdings, late trading, frequent trading, portfolio valuation, business continuity and the allocation of investment opportunities. The Board also considered the responses of Eaton Vance and its affiliates to requests in recent years from regulatory authorities, such as the Securities and Exchange Commission and the Financial Industry Regulatory Authority. The Board also considered certain information relating to the compliance record of Morgan Stanley and its affiliates, including information requests in recent years from regulatory authorities. With respect to the foregoing, including the compliance programs of Eaton Vance, the Board noted information regarding the impact of the Transaction, as well as Eaton Vance’s and Morgan Stanley’s commitment to keep the Board apprised of developments with respect to its long-term integration plans for Eaton Vance and existing Morgan Stanley affiliates and their respective personnel.

The Board considered other administrative services provided and to be provided or overseen by Eaton Vance and its affiliates, including transfer agency and accounting services. The Board evaluated the benefits to shareholders of investing in a fund that is a part of a large fund complex offering exposure to a variety of asset classes and investment disciplines. The Board noted information that the Transaction was not expected to have any material impact on such matters in the near-term.

In evaluating the nature, extent and quality of the services to be provided under the New Agreements, the Board also considered investment performance information provided for each Fund in connection with the 2020 Annual Approval Process, as well as information provided as of a more recent date. In this regard, the Board compared each Fund’s investment performance to that of comparable funds identified by an independent data provider (the peer group), as well as appropriate benchmark indices and, for certain Funds, a custom peer group of similarly managed funds. The Board also considered, where applicable, Fund-specific performance explanations based on criteria established by the Board in connection with the 2020 Annual Approval Process and, where applicable, performance explanations as of a more recent date. In addition to the foregoing information, it was also noted that the Board has received and discussed with management information throughout the year at periodic intervals comparing each Fund’s performance against applicable benchmark indices and peer groups. In addition, the Board considered each Fund’s performance in light of overall financial market conditions. Where a Fund’s relative underperformance to its peers was significant during one or more specified periods, the Board noted the explanations from Eaton Vance concerning the Fund’s relative performance versus the peer group.

After consideration of the foregoing factors, among others, and based on their review of the materials provided and the assurances received from, and recommendations of, Eaton Vance and Morgan Stanley, the Board determined that the Transaction was not expected to adversely affect the nature, extent and quality of services provided to the Funds by Eaton Vance and its affiliates and that the Transaction was not expected to have an adverse effect on the ability of Eaton Vance and its affiliates to provide those services. The Board concluded that the nature, extent and quality of services expected to be provided by Eaton Vance, taken as a whole, are appropriate and expected to be consistent with the terms of the New Agreements.

Management Fees and Expenses

The Board considered contractual fee rates payable by each Fund for advisory and administrative services (referred to collectively as “management fees”) in connection with the 2020 Annual Approval Process, as well as information provided as of a more recent date. As part of its review, the Board considered each Fund’s management fees and total expense ratio over various periods, as compared to those of comparable funds, before and after giving effect to any undertaking to waive fees or reimburse expenses.

The Board also considered factors, and, where applicable, certain Fund-specific factors, that had an impact on a Fund’s total expense ratio relative to comparable funds, as identified by Eaton Vance in response to inquiries from the Contract Review Committee. The Board considered that the New Agreement does not change a Fund’s management fee rate or the computation method for calculating such fees, including any separately executed permanent contractual management fee reduction currently in place for the Fund.

The Board also received and considered, where applicable, information about the services offered and the fee rates charged by Eaton Vance to other types of accounts with investment objectives and strategies that are substantially similar to and/or managed in a similar investment style as a Fund. In this regard, the Board received information about the differences in the nature and scope of services Eaton Vance provides to the Funds as compared to other types of accounts and the material differences in compliance, reporting and other legal burdens and risks to Eaton Vance as between each Fund and other types of accounts.

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Eaton Vance

Senior Income Trust

December 31, 2020

Board of Trustees’ Contract Approval — continued

After considering the foregoing information, and in light of the nature, extent and quality of the services expected to be provided by Eaton Vance, the Board concluded that the management fees charged for advisory and related services are reasonable with respect to its approval of the New Agreements.

Profitability and “Fall-Out” Benefits

During the 2020 Annual Approval Process, the Board considered the level of profits realized by Eaton Vance and relevant affiliates thereof in providing investment advisory and administrative services to the Funds and to all Eaton Vance funds as a group. The Board considered the level of profits realized without regard to marketing support or other payments by Eaton Vance and its affiliates to third parties in respect of distribution or other services. In light of the foregoing factors and the nature, extent and quality of the services rendered, the profits realized by Eaton Vance and its affiliates were not deemed to be excessive by the Board.

The Board noted that Morgan Stanley and Eaton Vance are expected to realize, over time, cost savings from the Transaction based on eliminating duplicate corporate overhead expenses. The Board considered, however, information from Eaton Vance and Morgan Stanley that such cost savings are not expected to be realized immediately upon the Closing and that, accordingly, there are currently no specific expected changes in the levels of profitability associated with the advisory and other services provided to the Funds that are contemplated as a result of the Transaction. The Board noted that it will continue to receive information regarding profitability during its annual contract review processes, including the extent to which cost savings and/or other efficiencies result in changes to profitability levels.

The Board also considered direct or indirect fall-out benefits received by Eaton Vance and its affiliates in connection with their respective relationships with the Funds, including the benefits of research services that may be available to Eaton Vance and its affiliates as a result of securities transactions effected for the Funds and other investment advisory clients. In evaluating the fall-out benefits to be received by Eaton Vance and its affiliates under the New Agreements, the Board considered whether the Transaction would have an impact on the fall-out benefits currently realized by Eaton Vance and its affiliates in connection with services provided pursuant to the Current Agreements.

The Board of each Fund considered that Morgan Stanley may derive reputational and other benefits from its ability to use the names of Eaton Vance and its affiliates in connection with operating and marketing the Funds. The Board considered that the Transaction, if completed, would significantly increase Morgan Stanley’s assets under management and expand Morgan Stanley’s investment capabilities.

Economies of Scale

The Board also considered the extent to which Eaton Vance and its affiliates, on the one hand, and the Funds, on the other hand, can expect to realize benefits from economies of scale as the assets of the Funds increase. The Board acknowledged the difficulty in accurately measuring the benefits resulting from economies of scale, if any, with respect to the management of any specific Fund or group of funds. As part of the 2020 Annual Approval Process, the Board reviewed data summarizing the increases and decreases in the assets of the Funds and of all Eaton Vance funds as a group over various time periods, and evaluated the extent to which the total expense ratio of each Fund and the profitability of Eaton Vance and its affiliates may have been affected by such increases or decreases.

The Board noted that Morgan Stanley and Eaton Vance are expected to benefit from possible growth of the Funds resulting from enhanced distribution capabilities, including with respect to the Funds’ potential access to Morgan Stanley’s institutional client base. Based upon the foregoing, the Board concluded that the Funds currently share in the benefits from economies of scale, if any, when they are realized by Eaton Vance, and that the Transaction is not expected to impede a Fund from continuing to benefit from any future economies of scale realized by Eaton Vance. The Board also considered the fact that the Funds are not continuously offered in the same manner as an open-end fund and that, notwithstanding that certain Funds (including Eaton Vance Senior Income Trust) are authorized to issue additional common shares through a shelf offering, the Funds’ assets may not increase materially in the foreseeable future.

Conclusion

Based on its consideration of the foregoing, and such other information it deemed relevant, including the factors and conclusions described above, the Contract Review Committee recommended to the Board approval of the New Agreements. Based on the recommendation of the Contract Review Committee, the Board, including a majority of the Independent Trustees, unanimously voted to approve the New Agreements for the Funds and recommended that shareholders approve the New Agreements.

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Eaton Vance

Senior Income Trust

December 31, 2020

Officers and Trustees

Officers

Eric A. Stein

President

Deidre E. Walsh

Vice President

Maureen A. Gemma

Secretary and Chief Legal Officer

James F. Kirchner

Treasurer

Richard F. Froio

Chief Compliance Officer

Trustees

William H. Park

Chairperson

Thomas E. Faust Jr.*

Mark R. Fetting

Cynthia E. Frost

George J. Gorman

Valerie A. Mosley

Helen Frame Peters

Keith Quinton

Marcus L. Smith

Susan J. Sutherland

Scott E. Wennerholm

  • Interested Trustee

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Eaton Vance Funds

IMPORTANT NOTICES

Privacy. The Eaton Vance organization is committed to ensuring your financial privacy. Each entity listed below has adopted privacy policy and procedures (“Privacy Program”) Eaton Vance believes is reasonably designed to protect your personal information and to govern when and with whom Eaton Vance may share your personal information.

• At the time of opening an account, Eaton Vance generally requires you to provide us with certain information such as name, address, social security number, tax status, account numbers, and account balances. This information is necessary for us to both open an account for you and to allow us to satisfy legal requirements such as applicable anti-money laundering reviews and know-your-customer requirements.

• On an ongoing basis, in the normal course of servicing your account, Eaton Vance may share your information with unaffiliated third parties that perform various services for Eaton Vance and/or your account. These third parties include transfer agents, custodians, broker/dealers and our professional advisers including auditors, accountants, and legal counsel. Eaton Vance may share your personal information with our affiliates. Eaton Vance may also share your information as required or permitted by applicable law.

• We have adopted a Privacy Program we believe is reasonably designed to protect the confidentiality of your personal information and to prevent unauthorized access to your information.

• We reserve the right to change our Privacy Program at any time upon proper notification to you. You may want to review our Privacy Program periodically for changes by accessing the link on our homepage: www.eatonvance.com.

Our pledge of protecting your personal information applies to the following entities within the Eaton Vance organization: the Eaton Vance Family of Funds, Eaton Vance Management, Eaton Vance WaterOak Advisors, Eaton Vance Distributors, Inc., Eaton Vance Trust Company, Eaton Vance Management (International) Limited, Eaton Vance Advisers International Ltd., Eaton Vance Global Advisors Limited, Eaton Vance Management’s Real Estate Investment Group, Boston Management and Research, Calvert Research and Management, and Calvert Funds. This notice supersedes all previously issued privacy disclosures. For more information about Eaton Vance’s Privacy Program or about how your personal information may be used, please call 1-800-262-1122.

Delivery of Shareholder Documents. The Securities and Exchange Commission (SEC) permits funds to deliver only one copy of shareholder documents, including prospectuses, proxy statements and shareholder reports, to fund investors with multiple accounts at the same residential or post office box address. This practice is often called “householding” and it helps eliminate duplicate mailings to shareholders. American Stock Transfer & Trust Company, LLC (“AST”), the closed-end funds transfer agent, or your financial intermediary, may household the mailing of your documents indefinitely unless you instruct AST, or your financial intermediary, otherwise. If you would prefer that your Eaton Vance documents not be householded, please contact AST or your financial intermediary. Your instructions that householding not apply to delivery of your Eaton Vance documents will typically be effective within 30 days of receipt by AST or your financial intermediary.

Portfolio Holdings. Each Eaton Vance Fund and its underlying Portfolio(s) (if applicable) files a schedule of portfolio holdings on Part F to Form N-PORT with the SEC. Certain information filed on Form N-PORT may be viewed on the Eaton Vance website at www.eatonvance.com, by calling Eaton Vance at 1-800-262-1122 or in the EDGAR database on the SEC’s website at www.sec.gov.

Proxy Voting. From time to time, funds are required to vote proxies related to the securities held by the funds. The Eaton Vance Funds or their underlying Portfolios (if applicable) vote proxies according to a set of policies and procedures approved by the Funds’ and Portfolios’ Boards. You may obtain a description of these policies and procedures and information on how the Funds or Portfolios voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, without charge, upon request, by calling 1-800-262-1122 and by accessing the SEC’s website at www.sec.gov.

Share Repurchase Program. The Fund’s Board of Trustees has approved a share repurchase program authorizing the Fund to repurchase up to 10% of its common shares outstanding as of the last day of the prior calendar year in open-market transactions at a discount to net asset value. The repurchase program does not obligate the Fund to purchase a specific amount of shares. The Fund’s repurchase activity, including the number of shares purchased, average price and average discount to net asset value, is disclosed in the Fund’s annual and semi-annual reports to shareholders.

Additional Notice to Shareholders. If applicable, a Fund may also redeem or purchase its outstanding preferred shares in order to maintain compliance with regulatory requirements, borrowing or rating agency requirements or for other purposes as it deems appropriate or necessary.

Closed-End Fund Information. Eaton Vance closed-end funds make fund performance data and certain information about portfolio characteristics available on the Eaton Vance website shortly after the end of each month. Other information about the funds is available on the website. The funds’ net asset value per share is readily accessible on the Eaton Vance website. Portfolio holdings for the most recent month-end are also posted to the website approximately 30 days following the end of the month. This information is available at www.eatonvance.com on the fund information pages under “Individual Investors — Closed-End Funds”.

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Investment Adviser and Administrator

Eaton Vance Management

Two International Place

Boston, MA 02110

Custodian

State Street Bank and Trust Company

State Street Financial Center, One Lincoln Street

Boston, MA 02111

Transfer Agent

American Stock Transfer & Trust Company, LLC

6201 15 th Avenue

Brooklyn, NY 11219

Fund Offices

Two International Place

Boston, MA 02110

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7700 12.31.20

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ITEM 2. Code of Ethics

Not required in this filing.

ITEM 3. Audit Committee Financial Expert

Not required in this filing.

ITEM 4. Principal Accountant Fees and Services

Not required in this filing.

ITEM 5. Audit Committee of Listed Registrants

Not required in this filing.

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ITEM 6. Schedule of Investments

Please see schedule of investments contained in the Report to Stockholders included under Item 1 of this Form N-CSR.

ITEM 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies

Not required in this filing.

ITEM 8. Portfolio Managers of Closed-End Management Investment Companies

Not required in this filing.

ITEM 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers

No such purchases this period.

ITEM 10. Submission of Matters to a Vote of Security Holders

No material changes.

ITEM 11. Controls and Procedures

(a) It is the conclusion of the registrant’s principal executive officer and principal financial officer that the effectiveness of the registrant’s current disclosure controls and procedures (such disclosure controls and procedures having been evaluated within 90 days of the date of this filing) provide reasonable assurance that the information required to be disclosed by the registrant has been recorded, processed, summarized and reported within the time period specified in the Commission’s rules and forms and that the information required to be disclosed by the registrant has been accumulated and communicated to the registrant’s principal executive officer and principal financial officer in order to allow timely decisions regarding required disclosure.

(b) There have been no changes in the registrant’s internal controls over financial reporting during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

ITEM 12. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies

No activity to report for the registrant’s most recent fiscal year end.

ITEM 13. Exhibits

(a)(1) Registrant’s Code of Ethics – Not applicable (please see Item 2).
(a)(2)(i) Treasurer’s Section 302 certification.
(a)(2)(ii) President’s Section 302 certification.
(b) Combined Section 906 certification.

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Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Eaton Vance Senior Income Trust
By: /s/ Eric A. Stein
Eric A. Stein
President
Date: February 24, 2021

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By: /s/ James F. Kirchner
James F. Kirchner
Treasurer
Date: February 24, 2021
By: /s/ Eric A. Stein
Eric A. Stein
President
Date: February 24, 2021

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