BXC

SEC source: 0001104659-25-051735 · tm2515902-1_4seq1.xml · nonDerivative · entry 1

Wall Christopher K · CIK 0001820194 · SVP, CFO and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,100

F1 · price: The transactions reported in this line were consummated at prices ranging from $69.25 to $70.00 per share, resulting in a weighted average purchase price of $69.65 per share. The reporting person undertakes to provide BlueLinx Holdings Inc. ("BXC"), any security holder of BXC, or the staff of the Securities and Exchange Commission ("SEC"), upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001104659-25-051151 · tm2515729-5_4seq1.xml · derivative · entry 2

SMITH J DAVID · CIK 0001272974 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,074

Underlying: Common Stock · 2,074 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

SEC source: 0001104659-25-051148 · tm2515729-3_4seq1.xml · derivative · entry 2

ZAKAS MARIETTA EDMUNDS · CIK 0001191471 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,074

Underlying: Common Stock · 2,074 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

SEC source: 0001104659-25-051154 · tm2515729-7_4seq1.xml · derivative · entry 3

Fennebresque Kim S · CIK 0001361379 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,218

Underlying: Common Stock · 3,218 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F4 · derivative.exercise_date: 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.

F4 · derivative.expiration_date: 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.

SEC source: 0001104659-25-051153 · tm2515729-6_4seq1.xml · derivative · entry 2

Lewis Mitchell B · CIK 0001597766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,074

Underlying: Common Stock · 2,074 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

SEC source: 0001104659-25-051150 · tm2515729-4_4seq1.xml · derivative · entry 2

Yancey Carol B · CIK 0001570596 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,074

Underlying: Common Stock · 2,074 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

SEC source: 0001104659-25-051146 · tm2515729-1_4seq1.xml · derivative · entry 2

Haas Keith · CIK 0001943422 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,074

Underlying: Common Stock · 2,074 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

SEC source: 0001104659-25-051147 · tm2515729-2_4seq1.xml · derivative · entry 2

DHANDA ANUJ · CIK 0001797932 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,074

Underlying: Common Stock · 2,074 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

SEC source: 0001104659-25-051735 · tm2515902-1_4seq1.xml · derivative · entry 3

Wall Christopher K · CIK 0001820194 · SVP, CFO and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,363

Underlying: Common Stock · 5,363 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BXC common stock.

F4 · derivative.exercise_date: These are time-based restricted stock units that vest ratably over three years commencing on May 19, 2026. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

F4 · derivative.expiration_date: These are time-based restricted stock units that vest ratably over three years commencing on May 19, 2026. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

SEC source: 0001104659-25-051151 · tm2515729-5_4seq1.xml · derivative · entry 3

SMITH J DAVID · CIK 0001272974 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,340 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

SEC source: 0001104659-25-051151 · tm2515729-5_4seq1.xml · nonDerivative · entry 1

SMITH J DAVID · CIK 0001272974 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,443

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-25-051148 · tm2515729-3_4seq1.xml · derivative · entry 3

ZAKAS MARIETTA EDMUNDS · CIK 0001191471 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,340 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

SEC source: 0001104659-25-051148 · tm2515729-3_4seq1.xml · nonDerivative · entry 1

ZAKAS MARIETTA EDMUNDS · CIK 0001191471 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,891

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-25-051154 · tm2515729-7_4seq1.xml · derivative · entry 4

Fennebresque Kim S · CIK 0001361379 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,234 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

SEC source: 0001104659-25-051154 · tm2515729-7_4seq1.xml · nonDerivative · entry 1

Fennebresque Kim S · CIK 0001361379 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,764

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-25-051153 · tm2515729-6_4seq1.xml · derivative · entry 3

Lewis Mitchell B · CIK 0001597766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,340 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

SEC source: 0001104659-25-051153 · tm2515729-6_4seq1.xml · nonDerivative · entry 1

Lewis Mitchell B · CIK 0001597766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,377

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-25-051150 · tm2515729-4_4seq1.xml · derivative · entry 3

Yancey Carol B · CIK 0001570596 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,340 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

SEC source: 0001104659-25-051150 · tm2515729-4_4seq1.xml · nonDerivative · entry 1

Yancey Carol B · CIK 0001570596 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,443

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-25-051146 · tm2515729-1_4seq1.xml · derivative · entry 3

Haas Keith · CIK 0001943422 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,340 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

SEC source: 0001104659-25-051146 · tm2515729-1_4seq1.xml · nonDerivative · entry 1

Haas Keith · CIK 0001943422 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,891

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-25-051147 · tm2515729-2_4seq1.xml · derivative · entry 3

DHANDA ANUJ · CIK 0001797932 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,340 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

SEC source: 0001104659-25-051147 · tm2515729-2_4seq1.xml · nonDerivative · entry 1

DHANDA ANUJ · CIK 0001797932 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,901

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on May 17, 2025. Vested shares will be delivered to the reporting person not later than 30 days after the vesting date.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-25-001285 · tm252075-1_4seq1.xml · derivative · entry 6

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 350 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F4 · derivative.exercise_date: Represents the conversion of restricted stock units that vested and settled pursuant to the Transition Agreement. Vested shares will be delivered to the Reporting Person within 30 days following December 28, 2024, pursuant to the Transition Agreement.

F4 · derivative.expiration_date: Represents the conversion of restricted stock units that vested and settled pursuant to the Transition Agreement. Vested shares will be delivered to the Reporting Person within 30 days following December 28, 2024, pursuant to the Transition Agreement.

SEC source: 0001104659-25-001285 · tm252075-1_4seq1.xml · derivative · entry 5

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 226 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested and settled pursuant to that certain Transition Agreement, dated November 6, 2024, between BlueLinx Corporation and the Reporting Person (the "Transition Agreement"). Vested shares will be delivered to the Reporting Person within 30 days following December 28, 2024, pursuant to the Transition Agreement.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested and settled pursuant to that certain Transition Agreement, dated November 6, 2024, between BlueLinx Corporation and the Reporting Person (the "Transition Agreement"). Vested shares will be delivered to the Reporting Person within 30 days following December 28, 2024, pursuant to the Transition Agreement.

SEC source: 0001104659-25-001285 · tm252075-1_4seq1.xml · nonDerivative · entry 4

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 881

F5 · shares: These shares were withheld to cover tax withholding obligations when 350 time-based restricted stock units vested and settled pursuant to the Transition Agreement.

SEC source: 0001104659-25-001285 · tm252075-1_4seq1.xml · nonDerivative · entry 3

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 986

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents the conversion of restricted stock units that vested and settled pursuant to the Transition Agreement. Vested shares will be delivered to the Reporting Person within 30 days following December 28, 2024, pursuant to the Transition Agreement.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-25-001285 · tm252075-1_4seq1.xml · nonDerivative · entry 2

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 636

F3 · shares: These shares were withheld to cover tax withholding obligations when 226 time-based restricted stock units vested and settled pursuant to the Transition Agreement.

SEC source: 0001104659-25-001285 · tm252075-1_4seq1.xml · nonDerivative · entry 1

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 704

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested and settled pursuant to that certain Transition Agreement, dated November 6, 2024, between BlueLinx Corporation and the Reporting Person (the "Transition Agreement"). Vested shares will be delivered to the Reporting Person within 30 days following December 28, 2024, pursuant to the Transition Agreement.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-24-110561 · tm2426656-1_4seq1.xml · derivative · entry 3

DeBrock Kimberly Ann · CIK 0001921260 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 464

Underlying: Common Stock · 233 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on October 18, 2024. These are time based restricted stock units that vest in three equal annual installments, with the first installment of 233 restricted stock units vesting on October 18, 2024.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on October 18, 2024. These are time based restricted stock units that vest in three equal annual installments, with the first installment of 233 restricted stock units vesting on October 18, 2024.

SEC source: 0001104659-24-110561 · tm2426656-1_4seq1.xml · nonDerivative · entry 2

DeBrock Kimberly Ann · CIK 0001921260 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163

F3 · shares: These shares were withheld to cover tax withholding obligations when 233 time-based restricted stock units vested on October 18, 2024.

SEC source: 0001104659-24-110561 · tm2426656-1_4seq1.xml · nonDerivative · entry 1

DeBrock Kimberly Ann · CIK 0001921260 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 233

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on October 18, 2024. These are time based restricted stock units that vest in three equal annual installments, with the first installment of 233 restricted stock units vesting on October 18, 2024.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-24-096307 · tm2423275-1_4seq1.xml · derivative · entry 3

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,360

Underlying: Common Stock · 681 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on August 29, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 681 restricted stock units vesting on August 29, 2024.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on August 29, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 681 restricted stock units vesting on August 29, 2024.

SEC source: 0001104659-24-096307 · tm2423275-1_4seq1.xml · nonDerivative · entry 2

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 478

F3 · shares: These shares were withheld to cover tax withholding obligations when 681 time-based restricted stock units vested on August 29, 2024.

SEC source: 0001104659-24-096307 · tm2423275-1_4seq1.xml · nonDerivative · entry 1

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 681

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on August 29, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 681 restricted stock units vesting on August 29, 2024.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-24-080811 · tm2419788-1_4seq1.xml · derivative · entry 6

Wamser R Andrew Jr · CIK 0001730821 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,542

Underlying: Common Stock · 1,271 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F4 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on July 17, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 1,271 restricted stock units vesting on July 17, 2024.

F4 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on July 17, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 1,271 restricted stock units vesting on July 17, 2024.

SEC source: 0001104659-24-080811 · tm2419788-1_4seq1.xml · derivative · entry 5

Wamser R Andrew Jr · CIK 0001730821 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,073

Underlying: Common Stock · 3,537 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on July 17, 2024. These are time-based restricted stock units that were granted to the Reporting Person pursuant to that certain Employment Agreement, dated July 6, 2023, between the Company and the Reporting Person. The units vest in three equal annual installments, with the first installment of 3,537 restricted stock units vesting on July 17, 2024.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on July 17, 2024. These are time-based restricted stock units that were granted to the Reporting Person pursuant to that certain Employment Agreement, dated July 6, 2023, between the Company and the Reporting Person. The units vest in three equal annual installments, with the first installment of 3,537 restricted stock units vesting on July 17, 2024.

SEC source: 0001104659-24-080811 · tm2419788-1_4seq1.xml · nonDerivative · entry 4

Wamser R Andrew Jr · CIK 0001730821 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,378

F5 · shares: These shares were withheld to cover tax withholding obligations when 1,271 time-based restricted stock units vested on July 17, 2024.

SEC source: 0001104659-24-080811 · tm2419788-1_4seq1.xml · nonDerivative · entry 3

Wamser R Andrew Jr · CIK 0001730821 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,756

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents the conversion of restricted stock units that vested on July 17, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 1,271 restricted stock units vesting on July 17, 2024.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-24-080811 · tm2419788-1_4seq1.xml · nonDerivative · entry 2

Wamser R Andrew Jr · CIK 0001730821 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,485

F3 · shares: These shares were withheld to cover tax withholding obligations when 3,537 time-based restricted stock units vested on July 17, 2024.

SEC source: 0001104659-24-080811 · tm2419788-1_4seq1.xml · nonDerivative · entry 1

Wamser R Andrew Jr · CIK 0001730821 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,537

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on July 17, 2024. These are time-based restricted stock units that were granted to the Reporting Person pursuant to that certain Employment Agreement, dated July 6, 2023, between the Company and the Reporting Person. The units vest in three equal annual installments, with the first installment of 3,537 restricted stock units vesting on July 17, 2024.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-24-077272 · tm2418755-1_4seq1.xml · derivative · entry 3

Wilson Michael · CIK 0001868238 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,020

Underlying: Common Stock · 1,020 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F1 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on June 30, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 1,020 restricted stock units vesting on June 30, 2023.

F1 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on June 30, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 1,020 restricted stock units vesting on June 30, 2023.

SEC source: 0001104659-24-077272 · tm2418755-1_4seq1.xml · nonDerivative · entry 2

Wilson Michael · CIK 0001868238 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,900

F4 · shares: These shares were withheld to cover tax withholding obligations when 1,020 time-based restricted stock units vested on June 30, 2024.

SEC source: 0001104659-24-077272 · tm2418755-1_4seq1.xml · nonDerivative · entry 1

Wilson Michael · CIK 0001868238 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,336

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents the conversion of restricted stock units that vested on June 30, 2024. These are time-based restricted stock units that vest in three equal annual installments, with the first installment of 1,020 restricted stock units vesting on June 30, 2023.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F3 · balance_after: Represents the total number of shares owned by Mr. Wilson immediately after 1,020 shares vested on June 30, 2024. This includes a correction to the total number of shares owned by Mr. Wilson, which was previously reported as 1,246 shares following the vesting of 1,118 shares vesting on June 8, 2024, less the tax withholding of 509 shares. As of June 8, 2024, Mr. Wilson owned 1,316 shares, following the vesting of 1,188 shares vesting on June 8, 2024, less the tax withholding of 509 shares.

SEC source: 0001104659-24-070536 · tm2417010-1_4seq1.xml · derivative · entry 6

Wilson Michael · CIK 0001868238 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,118 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F4 · derivative.exercise_date: Represents the conversion of restricted stock units that vested on June 8, 2024. These are time-based restricted stock units that vested in three equal annual installments, with the first installment vesting on June 8, 2022.

F4 · derivative.expiration_date: Represents the conversion of restricted stock units that vested on June 8, 2024. These are time-based restricted stock units that vested in three equal annual installments, with the first installment vesting on June 8, 2022.

SEC source: 0001104659-24-070536 · tm2417010-1_4seq1.xml · nonDerivative · entry 4

Wilson Michael · CIK 0001868238 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,246

F5 · shares: These shares were withheld to cover tax withholding obligations when 1,118 time-based restricted stock units vested on June 8, 2024.

SEC source: 0001104659-24-070536 · tm2417010-1_4seq1.xml · nonDerivative · entry 3

Wilson Michael · CIK 0001868238 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,755

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents the conversion of restricted stock units that vested on June 8, 2024. These are time-based restricted stock units that vested in three equal annual installments, with the first installment vesting on June 8, 2022.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

SEC source: 0001104659-24-070538 · tm2417010-2_4seq1.xml · derivative · entry 1

Kinney Tricia Ann · CIK 0002002187 · GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,099

Underlying: Common Stock · 2,099 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F2 · derivative.exercise_date: These are time-based restricted stock units that vest in three equal annual installments commencing on June 7, 2025. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

F2 · derivative.expiration_date: These are time-based restricted stock units that vest in three equal annual installments commencing on June 7, 2025. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

SEC source: 0001104659-24-070539 · tm2417010-3_4seq1.xml · derivative · entry 1

DeBrock Kimberly Ann · CIK 0001921260 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 643

Underlying: Common Stock · 643 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F2 · derivative.exercise_date: These are time-based restricted stock units that vest in three equal annual installments commencing on June 7, 2025. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

F2 · derivative.expiration_date: These are time-based restricted stock units that vest in three equal annual installments commencing on June 7, 2025. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

SEC source: 0001104659-24-070540 · tm2417010-4_4seq1.xml · derivative · entry 1

Wamser R Andrew Jr · CIK 0001730821 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,680

Underlying: Common Stock · 3,680 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of BlueLinx Holdings Inc. common stock.

F2 · derivative.exercise_date: These are time-based restricted stock units that vest in three equal annual installments commencing on June 7, 2025. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

F2 · derivative.expiration_date: These are time-based restricted stock units that vest in three equal annual installments commencing on June 7, 2025. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.