Builders FirstSource, Inc.

BLDR· NYSE

Since Oct 4, 2025

Transactions: 2
Purchases: 1
Sales: 1
Purchase value: $4.39M
Sale value: $390.85K

Values are shares multiplied by reported price when both were supplied, each trade counted once however many filers reported it.

Rush David EDirector

Filed May 12, 2026Period of report May 8, 20260001193125-26-219363

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleMay 8, 2026	Common Stock, par value $0.01 per share^F1	5,000	$78.17	$390.85K	122,284	Direct

Filing footnotes · 1

F1This transaction was executed in multiple trades at prices ranging from $78.14 to $78.25 per share. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request by the SEC staff, the issuer, or a security holder of the issuer.

Open on SEC EDGAR

Levy Paul SDirector

Filed Mar 16, 2026Period of report Mar 13, 20260001193125-26-108577

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
PurchaseMar 13, 2026	Common Stock, par value $0.01 per share^F1	50,000	$87.73	$4.39M	1,727,191	Direct

P and S transaction codes only. Grants, gifts, option exercises, tax withholding, and Form 144 notices are not counted as purchases or sales. A row whose filed price fails a plausibility check, or that is not common stock, is listed but left out of the values; a trade reported by several filers is counted once.