Builders FirstSource, Inc. — Director's Dealing 2026

Mar 18, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Builders FirstSource, Inc. (BLDR)
CIK: 0001316835
Period of Report: 2026-03-15

Reporting Person: Jackson Peter M. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-15	Common Stock, par value $0.01 per share	A	42570	$0.00	Acquired	272448	Direct
2026-03-15	Common Stock, par value $0.01 per share	A	8392	$0.00	Acquired	280840	Direct
2026-03-15	Common Stock, par value $0.01 per share	F	8508	$88.09	Disposed	272332	Direct

Footnotes

F1: Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest in 33.3% increments on each of March 15, 2027-2029 and entitle the reporting person to one share of common stock for each restricted stock unit that vests.

F2: Reflects the vesting of performance-based restricted stock units granted pursuant to the Corporation's 2014 Incentive Plan.

F3: Reflects shares withheld to pay tax withholding requirements on vesting of previously granted performance-based restricted stock units and restricted stock units.