X0609 4 2026-05-18 0 0001301787 BlueLinx Holdings Inc. BXC 0001270206 CORLEY CHRISTINA M false 1950 SPECTRUM CIRCLE MARIETTA GA 30067 1 0 0 0 0 Common Stock 2026-05-19 4 M 0 1297 A 1297 D Restricted Stock Units 2026-05-18 4 A 0 2749 0 A Common Stock 2749 2749 D Restricted Stock Units 2026-05-19 4 M 0 1297 0 D Common Stock 1297 0 D Represents the conversion of restricted stock units that vested on May 19, 2026. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date. Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock. The restricted stock units vest on the first anniversary date of the date of grant. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date. /s/ Christin Lumpkin as attorney-in-fact for Christina M. Corley 2026-05-20