BlueLinx Holdings Inc. — Director's Dealing 2021

May 28, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BlueLinx Holdings Inc. (BXC)
CIK: 0001301787
Period of Report: 2021-05-26

Reporting Person: Lewis Mitchell B (Director, PRESIDENT AND CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-26	Common Stock	S	18716	$50.991	Disposed	118642	Indirect
2021-05-26	Common Stock	S	5309	$51.761	Disposed	113333	Indirect
2021-05-26	Common Stock	S	94	$52.45	Disposed	113239	Indirect
2021-05-27	Common Stock	S	6909	$52.138	Disposed	106330	Indirect
2021-05-27	Common Stock	S	5593	$52.871	Disposed	100737	Indirect
2021-05-27	Common Stock	S	688	$53.639	Disposed	100049	Indirect
2021-05-28	Common Stock	S	7638	$49.682	Disposed	92411	Indirect
2021-05-28	Common Stock	S	10994	$50.599	Disposed	81417	Indirect
2021-05-28	Common Stock	S	681	$52.029	Disposed	80736	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Units	$		Common Stock (30715.0)	30715	Direct
Restricted Stock Units	$		Common Stock (10240.0)	10240	Direct
Restricted Stock Units	$		Common Stock (38333.0)	38333	Direct
Restricted Stock Units	$		Common Stock (100000.0)	100000	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 6, 2021.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions in prices ranging from $50.45 to $51.44, inclusive. The reporting person undertakes to provide to BlueLinx Holdings Inc., any securityholder of BlueLinx Holdings Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 2 through 9 to this Form 4.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions in prices ranging from $51.45 to $52.28, inclusive.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions in prices ranging from $51.50 to $52.48, inclusive.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions in prices ranging from $52.50 to $53.48, inclusive.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions in prices ranging from $53.57 to $53.76, inclusive.

F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions in prices ranging from $49.21 to $50.19, inclusive.

F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions in prices ranging from $50.24 to $51.21, inclusive.

F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions in prices ranging from $51.44 to $52.20, inclusive.

F10: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F11: These are performance-based restricted stock units that were granted on June 8, 2018. The performance criteria were satisfied on November 12, 2020, upon certification by the Compensation Committee of the Board of Directors. These performance-based restricted stock units will vest on June 8, 2021, and vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F12: These are time-based restricted stock units that vest in three equal annual installments commencing on June 8, 2019. Vested shares will be delivered to the reporting person not later than 30 days after each vesting date.

F13: These are time-based restricted stock units that vest in three equal annual installments commencing on June 7, 2020. Vested shares will be delivered to the reporting person not later than 30 days after each vesting date.

F14: These are time-based restricted stock units that vest in three equal annual installments commencing on June 8, 2021. Vested shares will be delivered to the reporting person not later than 30 days after each vesting date.