FENNEBRESQUE KIM S exercised options at BLUELINX HOLDINGS INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise

FENNEBRESQUE KIM S

Filed: 5/20/2026ACC: 0001104659-26-064486

InsiderFENNEBRESQUE KIM SCIK 1361379

→

IssuerBLUELINX HOLDINGS INC.CIK 1301787

Director

Since May 2019

+4.27K

Net shares

Net buyer

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

7.48K acquired · 3.22K disposed

Non-Derivative Transactions1

Common Stock

Direct

M · Option Exercise

+3.22K

Price / share

—

Trade value

—

% of position

33.0%

5/19/2026

9.76K→12.98K

Total

Net shares

+3.22K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	5/19/2026	M · Option Exercise	+3.22K	—	—	33.0%	9.76K	12.98K
Total			+3.22K		$0.00

Derivative Transactions2

Restricted Stock Units

Direct

A · Award

Converts to

Common Stock

4.27K shares

+4.27K

Strike price

Held after

4.27K

Exercisable

—

5/18/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

3.22K shares

−3.22K

Strike price

Held after

0.00

Exercisable

—

5/19/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Stock Units Direct	Common Stock4.27K shares	5/18/2026	A · Award	+4.27K		—	4.27K
Restricted Stock Units Direct	Common Stock3.22K shares	5/19/2026	M · Option Exercise	−3.22K		—	0.00

Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect

Shares owned34.14K

Total

34.14K indirect34.14K

Security Title	Shares Owned	Ownership Type
Common Stock	34.14K	Indirect
Total	34.14K	34.14K indirect

Derivative Holdings (Post-Transaction)4

Restricted Stock Units

Indirect

Underlying security

Common Stock

Underlying shares

22.25K

Shares owned

22.25K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Indirect

Underlying security

Common Stock

Underlying shares

9.48K

Shares owned

9.48K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Indirect

Underlying security

Common Stock

Underlying shares

15.11K

Shares owned

15.11K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Indirect

Underlying security

Common Stock

Underlying shares

21.33K

Shares owned

21.33K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

68.18K

Owned

68.18K

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
Restricted Stock Units Indirect	Common Stock	—	—	22.25K	22.25K
Restricted Stock Units Indirect	Common Stock	—	—	9.48K	9.48K
Restricted Stock Units Indirect	Common Stock	—	—	15.11K	15.11K
Restricted Stock Units Indirect	Common Stock	—	—	21.33K	21.33K
Total				68.18K	68.18K