Builders FirstSource, Inc. (BLDR) Institutional Ownership & Insider Trading

670 institutions reported holding Builders FirstSource, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 2 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

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Building Products & Equipment · Industrials

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Market cap: 6.1B
P/E TTM: 61.8
Dividend yield: —
52-week: —
Next earnings: 29 Oct, in 5 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

670 institutions held —% of the shares. Across filers that reported both quarters, shares held changed +0.6%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	670	108	+0.6%	224	80	246	135
Mar 26	717	106	+1.8%	255	75	217	115
Dec 25	752	105	-7.1%	240	69	263	101
Sep 25	757	113	+5.0%	234	82	266	75
Jun 25	760	108	-2.4%	257	89	248	107
Mar 25	763	108	+1.3%	274	71	259	111
Dec 24	795	108	-2.7%	256	73	285	104
Sep 24	806	109	+1.1%	263	137	253	88

Builders FirstSource, Inc. — questions

Who owns Builders FirstSource, Inc. stock?: 670 institutions reported Builders FirstSource, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (7.3%), VANGUARD CAPITAL MANAGEMENT LLC (6.4%), STATE STREET CORP (4.5%).
Are Builders FirstSource, Inc. insiders buying or selling?: 2 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Builders FirstSource, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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