Kimberly Ann DeBrock - 18 Oct 2026 Form 4 Insider Report for BlueLinx Holdings Inc. (BXC)

Reporting relationship: VP & Chief Accounting Officer
Issuer ticker: BXC
Reported as of: 18 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Oct 2026, 16:01:17 UTC
Prior SEC filing: 09 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Christin Lumpkin, as attorney-in-fact for Kimberly Ann DeBrock

Filing notes and source

Key filing fact

Kimberly Ann DeBrock filed Form 4 for BlueLinx Holdings Inc. (BXC) on 20 Oct 2026.

Key facts

This page summarizes Kimberly Ann DeBrock's Form 4 filing for BlueLinx Holdings Inc. (BXC).
3 reported transactions and 5 derivative rows are listed below.
Accepted by SEC: 20 Oct 2026, 16:01.

Change

Previous filing in this sequence was filed on 09 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001921260 Primary reporting owner

DeBrock Kimberly Ann

Relationship: VP & Chief Accounting Officer
Address: 1950 SPECTRUM CIRCLE, MARIETTA
Signature: /s/ Christin Lumpkin, as attorney-in-fact for Kimberly Ann DeBrock
Signature date: 20 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BXC transaction

Common Stock

Options Exercise

Transaction value
Shares: +232
Change %: +21%
Price
Shares after: 1,318
Date: 18 Oct 2026
Ownership: Direct
Footnotes: F1, F2

BXC transaction

Common Stock

Tax liability

Transaction value
Shares: -69
Change %: -5.2%
Price: $73.62^*
Shares after: 1,249
Date: 18 Oct 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

BXC transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -232
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 18 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 232
Exercise price
Footnotes: F1, F2

BXC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,280
Date: 18 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,280
Exercise price
Footnotes: F2, F4

BXC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 214
Date: 18 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 214
Exercise price
Footnotes: F2, F5

BXC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,650
Date: 18 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,650
Exercise price
Footnotes: F2, F6

BXC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 349
Date: 18 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 349
Exercise price
Footnotes: F2, F7

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 7 footnotes

Footnote F1

Represents the conversion of restricted stock units that vested on October 18, 2026. These are time based restricted stock units that vest in three equal annual installments, with the first vesting on October 18, 2024.

Footnote F2

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

Footnote F3

These shares were withheld to cover tax withholding obligations when 69 time-based restricted stock units vested on October 18, 2026.

Footnote F4

These are time-based restricted stock units that vest in three equal installments commencing on June 6, 2026. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

Footnote F5

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

Footnote F6

These are time-based restricted stock units that vest in three equal installments commencing on June 7, 2027. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.

Footnote F7

These are time-based restricted stock units that vest on June 6, 2028. Vested shares will be delivered to the reporting person no later than 30 days after each vesting date.