SEC INSIDER TRANSACTIONS

Builders FirstSource, Inc. (BLDR) Insider Transactions

Explore official ownership filings, with every record linked to its source.

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BLDR · Builders FirstSource, Inc.

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Roles: director,officer,ten_percent_owner,otherOwner nameOfficer titleOwnership: D, I, unknownoriginal or amendedTransaction fromTransaction throughFiled fromFiled throughMinimum quantityMaximum quantityMinimum priceMaximum priceMinimum calculated valueMaximum calculated valueResults per page (1–100)

OR within codes/roles; AND between categories. Roles apply to buyers and sellers. Owner predicates match the same owner. Missing values fail numeric/date filters. Value is quantity × reported price for non-derivative rows only; derivative values are unknown. Amendments stay separate; joint owners do not duplicate rows.

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Stale snapshot · Covered: filings 2026-05-14 to 2026-10-27 · 37 filings · fetched 2026-10-27T16:23:24Z

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36matching filing rows

Purchases and sales count original non-derivative P and S rows. Awards, gifts, exercises, derivatives and amendments are shown separately and are not described as market purchases.

Transaction / filed	Reporting owner(s)	Code / security	Quantity	Ownership	Source
2026-05-14Filed 2026-05-18	Charles Dirkson RDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228975
2026-05-14Filed 2026-05-18	AINOA CHERYLDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228976
2026-05-14Filed 2026-05-18	Boydston Cory JacobsDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228978
2026-05-14Filed 2026-05-18	Steinke Craig ArthurDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228983
2026-05-14Filed 2026-05-18	MILGRIM BRETT NDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228984
2026-05-14Filed 2026-05-18	Rush David EDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228987
2026-05-14Filed 2026-05-18	ALEXANDER MARK ADirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228990
2026-05-14Filed 2026-05-18	CHRISTOPHE CLEVELAND ADirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228991
2026-05-14Filed 2026-05-18	Renz MariaDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228993
2026-05-14Filed 2026-05-18	Hayes William BDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-228998
2026-05-14Filed 2026-05-18	LEVY PAUL SDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Reflects the acquisition of restricted stock units pursuant to the Corporation's 2014 Incentive Plan. The restricted stock units vest on May 14, 2027 and entitle the reporting person to one share of common stock for each restricted stock unit that vests. References: F1	A Award / grantCommon Stock, par value $0.01 per share · Non-derivative	2,558A	Direct	Form 4 ↗0001193125-26-229001

Imported instruments only. Joint owners do not multiply transactions. Amendments are separate filing rows, not additional trades. No aggregate trade totals are implied.