BLACKLINE, INC. — Director's Dealing 2020

May 8, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BLACKLINE, INC. (BL)
CIK: 0001666134
Period of Report: 2020-05-05

Reporting Person: Villanova Patrick (Chief Accounting Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-05	Common Stock	M	2250	$14.00	Acquired	20680	Direct
2020-05-05	Common Stock	S	2150	$60.986	Disposed	18530	Direct
2020-05-05	Common Stock	S	100	$61.615	Disposed	18430	Direct
2020-05-05	Common Stock	M	23000	$15.00	Acquired	41430	Direct
2020-05-05	Common Stock	S	10389	$60.6539	Disposed	31041	Direct
2020-05-05	Common Stock	S	12611	$61.2343	Disposed	18430	Direct
2020-05-05	Common Stock	M	7500	$29.30	Acquired	25930	Direct
2020-05-05	Common Stock	S	3461	$60.6992	Disposed	22469	Direct
2020-05-05	Common Stock	S	4039	$61.2324	Disposed	18430	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-05	Stock Option (right to buy)	$14.00	M	2250	Disposed	2026-10-16	Common Stock (2250)	Direct
2020-05-05	Stock Option (right to buy)	$15.00	M	23000	Disposed	2025-11-09	Common Stock (23000)	Direct
2020-05-05	Stock Option (right to buy)	$29.30	M	7500	Disposed	2027-02-22	Common Stock (7500)	Direct

Footnotes

F1: The sale transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 11, 2020.

F2: The sale price represents the weighted-average price of shares sold ranging from $60.508 to $61.45 per share. Upon request by the Securities and Exchange Commission (the Commission) staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F3: The sale price represents the weighted-average price of shares sold ranging from $60.00 to $60.99 per share. Upon request by the Securities and Exchange Commission (the Commission) staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F4: The sale price represents the weighted-average price of shares sold ranging from $61.015 to $61.65 per share. Upon request by the Securities and Exchange Commission (the Commission) staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F5: The sale price represents the weighted-average price of shares sold ranging from $60.10 to $61.00 per share. Upon request by the Securities and Exchange Commission (the Commission) staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F6: The sale price represents the weighted-average price of shares sold ranging from $61.01 to $61.615 per share. Upon request by the Securities and Exchange Commission (the Commission) staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F7: The shares subject to the option vest in 4 equal, annual installments beginning on the one year anniversary of October 13, 2016.

F8: The shares subject to the option vest in 4 equal, annual installments beginning on the one year anniversary of November 10, 2015.

F9: The shares subject to the option vest in 4 equal, annual installments beginning on the one year anniversary of February 23, 2017.