Who owns Builders FirstSource, Inc.?
Institutional ownership of BLDR from SEC Form 13F filings across 407 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
407
13F holders
$6.98B
value, 2026 filers
73.8%
of shares outstanding (79.4M sh)
46
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of BLDR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.8M | $700.9M | 0.0% | 7.3% | -10.6% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 6.9M | $613.4M | 0.0% | 6.4% | -51.2% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 4.2M | $372.4M | 0.0% | 3.9% | -3.6% |
| 4 | Capital International Investors | 3.9M | $349.6M | 0.1% | 3.6% | +32.8% |
| 5 | Pictet Asset Management Holding SA | 3.8M | $340.1M | 0.3% | 3.5% | +175.8% |
| 6 | WELLINGTON MANAGEMENT GROUP LLP | 3.5M | $310.1M | 0.1% | 3.2% | -5.8% |
| 7 | Invesco Ltd. | 3.3M | $299.4M | 0.0% | 3.1% | +28.5% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 2.8M | $253.2M | 0.0% | 2.6% | -1.7% |
| 9 | SANDS CAPITAL MANAGEMENT, LLC | 2.3M | $204.3M | 0.8% | 2.1% | -12.9% |
| 10 | Public Sector Pension Investment Board | 2.1M | $192.2M | 0.5% | 2% | +102.4% |
| 11 | D1 Capital Partners L.P.NEW | 1.6M | $146.7M | 0.4% | 1.5% | new |
| 12 | MORGAN STANLEY | 1.6M | $139.0M | 0.0% | 1.4% | +9.9% |
| 13 | GOLDMAN SACHS GROUP INC | 1.4M | $124.5M | 0.0% | 1.3% | -18.9% |
| 14 | Sixth Street Partners Management Company, L.P.NEW | 1.2M | $109.3M | 18.9% | 1.1% | new |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2M | $109.3M | 0.0% | 1.1% | +9.0% |
| 16 | Capital World Investors | 1.0M | $90.0M | 0.0% | 0.9% | +29.1% |
| 17 | BANK OF AMERICA CORP /DE/ | 936,880 | $83.8M | 0.0% | 0.9% | +5.9% |
| 18 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 915,658 | $81.9M | 0.0% | 0.9% | +223.4% |
| 19 | NORTHERN TRUST CORP | 898,310 | $80.4M | 0.0% | 0.8% | -5.9% |
| 20 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 891,669 | $79.8M | 0.1% | 0.8% | +8.4% |
| 21 | AMERIPRISE FINANCIAL INC | 888,118 | $79.5M | 0.0% | 0.8% | +329.6% |
| 22 | Focus Partners Wealth | 881,993 | $78.9M | 0.1% | 0.8% | -47.0% |
| 23 | NORGES BANKNEW | 860,958 | $77.0M | 0.0% | 0.8% | new |
| 24 | Jupiter Topco LLCNEW | 826,290 | $73.9M | 0.0% | 0.8% | new |
| 25 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 809,251 | $72.4M | 0.0% | 0.8% | -20.6% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.