Company · Ownership research

Builders FirstSource, Inc. BLDR

CIK 0001316835 · CUSIP 12008R107

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 12008R107 (BLDR), not CUSIP 12008R907 (BLDR), CUSIP 12008R957 (BLDR), and does not merge CUSIPs.

This page lists the top 20 of 788 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$1.67B 13,363,975 shares	0.03%	-343.55K(-2.50%)Reduced	SEC filing ↗ May 9, 2025	▾
02	FMR LLC CIK 315066 · View history	$1.34B 10,723,476 shares	0.09%	-174.89K(-1.60%)Reduced	SEC filing ↗ May 12, 2025	▾
03	BlackRock, Inc. CIK 2012383 · View history	$1.20B 9,623,707 shares	0.03%	-158.15K(-1.60%)Reduced	SEC filing ↗ May 2, 2025	▾
04	STATE STREET CORP CIK 93751 · View history	$624.34M 4,997,110 shares	0.03%	-123.49K(-2.40%)Reduced	SEC filing ↗ May 15, 2025	▾
05	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$401.95M 3,217,125 shares	0.08%	+960.60K(+42.60%)Added	SEC filing ↗ May 13, 2025	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$368.03M 2,954,776 shares	0.03%	+195.42K(+7.10%)Added	SEC filing ↗ May 13, 2025	▾
07	Invesco Ltd. CIK 914208 · View history	$314.78M 2,519,461 shares	0.06%	+265.87K(+11.80%)Added	SEC filing ↗ May 12, 2025	▾
08	DIAMOND HILL CAPITAL MANAGEMENT INC CIK 1217541 · View history	$283.66M 2,270,362 shares	1.30%	+326.92K(+16.80%)Added	SEC filing ↗ May 6, 2025	▾
09	THORNBURG INVESTMENT MANAGEMENT INC CIK 1145020 · View history	$282.31M 225,956 shares	0.59%	-6.59K(-2.80%)Reduced	SEC filing ↗ May 8, 2025	▾
10	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$280.39M 2,244,449 shares	0.07%	+6.45K(+0.30%)Added	SEC filing ↗ May 13, 2025	▾
11	VOYA INVESTMENT MANAGEMENT LLC CIK 1068837 · Amended · View history	$229.81M 1,840,171 shares	0.26%	+423.89K(+29.90%)Added	SEC filing ↗ Jun 18, 2025	▾
12	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main CIK 1694217 · View history	$201.38M 1,611,836 shares	0.23%	-47.90K(-2.90%)Reduced	SEC filing ↗ May 15, 2025	▾
13	Boston Partners CIK 1386060 · View history	$198.03M 1,588,173 shares	0.24%	-399.27K(-20.10%)Reduced	SEC filing ↗ May 13, 2025	▾
14	BAILLIE GIFFORD & CO CIK 1088875 · View history	$195.03M 1,560,975 shares	0.17%	-102.44K(-6.20%)Reduced	SEC filing ↗ May 7, 2025	▾
15	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$185.09M 1,481,470 shares	0.06%	-97.19K(-6.20%)Reduced	SEC filing ↗ May 2, 2025	▾
16	NORGES BANK CIK 1374170 · Amended · View history	$160.60M 1,285,392 shares	0.02%	-113.13K(-8.10%)Reduced	SEC filing ↗ May 13, 2025	▾
17	MORGAN STANLEY CIK 895421 · View history	$157.94M 1,264,148 shares	0.01%	-344.63K(-21.40%)Reduced	SEC filing ↗ May 15, 2025	▾
18	Brave Warrior Advisors, LLC CIK 1553733 · View history	$155.12M 1,241,578 shares	3.55%	+1.24MNew	SEC filing ↗ May 15, 2025	▾
19	NORTHERN TRUST CORP CIK 73124 · View history	$141.76M 1,134,586 shares	0.02%	-5.19K(-0.50%)Reduced	SEC filing ↗ May 13, 2025	▾
20	Robeco Institutional Asset Management B.V. CIK 1418773 · View history	$137.15M 1,097,741 shares	0.27%	+121.62K(+12.50%)Added	SEC filing ↗ Apr 23, 2025	▾

Showing 20 / 788 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

788

Cancelled or null records excluded

Disclosed shares

109,449,285

Not deduplicated across managers

Disclosed value

$13.92B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Builders FirstSource, Inc. · Q1 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.