BLDR Institutional Ownership
Who owns Builders FirstSource, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 673 funds reported holding BLDR at Jun 30, 2026, together owning 100.2% of the company.
- ▼333 buying vs 409 selling
- ▲Held by funds +1.6 pts
- ▼Funds holding -55
- ▼Superinvestors: 1 added, 5 cut
- ▼Put/call 0.26 to 0.35
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 673 | 728 | −7.6% |
| In funds' top 10 | 14 | 13 | +7.7% |
| 13F shares | 108M | 106M | +1.6% |
| Held by funds | 100.2% | 98.6% | +1.6 pts |
| New positions | 94 | 93 | +1.1% |
| Increased | 239 | 278 | −14.0% |
| Reduced | 260 | 240 | +8.3% |
| Sold out | 149 | 138 | +8.0% |
| Calls (shares) | 813K | 945K | −14.0% |
| Puts (shares) | 279K | 355K | −21.4% |
| Put/call ratio | 0.35 | 0.26 | +32.0% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in BLDR
All superinvestors →
Who owns BLDR
share of fund held shares- Index and passive funds34.2%
- Active managers and hedge funds51.2%
- Banks and brokers11.0%
- Pensions, insurers and other3.7%
The top 10 holders own 41.3% of all BLDR shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
208 funds changed their position- Principal Financial Group IncAdded+393K sh
- Parnassus Investments, LLCSold out−145K sh
- Assenagon Asset Management S.A.Trimmed−186K sh
- Seizert Capital Partners, LLCAdded+105K sh
- Agman Capital LLCNew+91K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.28% | 7.8M | $701M | −928K |
| 2 | Vanguard Capital Management LLC | 6.37% | 6.9M | $613M | −172K |
| 3 | State Street Corp | 4.50% | 4.8M | $433M | −280K |
| 4 | Vanguard Portfolio Management LLC | 3.87% | 4.2M | $372M | −157K |
| 5 | Capital International Investors | 3.63% | 3.9M | $350M | +964K |
| 6 | Pictet Asset Management Holding SA | 3.53% | 3.8M | $340M | +2.4M |
| 7 | Wellington Management Group LLP | 3.22% | 3.5M | $310M | −214K |
| 8 | Dimensional Fund Advisors LP | 3.20% | 3.4M | $308M | +472K |
| 9 | Invesco Ltd. | 3.11% | 3.3M | $299M | +742K |
| 10 | Geode Capital Management, LLC | 2.63% | 2.8M | $253M | −50K |
- Pictet Asset Management Holding SA+2.4M sh+$217M
- D1 Capital Partners L.P.+1.6M sh+$147M
- Capital International Investors+964K sh+$86.3M
- Norges Bank+861K sh+$77M
- Invesco Ltd.+742K sh+$66.4M
- Ameriprise Financial Inc+681K sh+$61M
- Westfield Capital Management Co LP+656K sh+$58.7M
- Atlas FRM LLC+641K sh+$57.4M
- Boston Partners−1.6M sh−$141M
- BlackRock, Inc.−928K sh−$83M
- Focus Partners Wealth−781K sh−$69.9M
- Marshall Wace, LLP−637K sh−$57M
- Point72 Asset Management, L.P.−573K sh−$47.1M
- Deutsche Bank Ag\−515K sh−$46.1M
- Fmr LLC−471K sh−$42.1M
- Cercano Management LLC−386K sh−$31.8M
BLDR institutional ownership FAQ
Who owns the most BLDR stock?
In Q2 2026 13F filings the largest holder of BLDR was BlackRock, Inc., followed by Vanguard Capital Management LLC and State Street Corp. Index fund managers are usually the biggest holders of large companies.
What percentage of BLDR is owned by institutions?
Funds that file 13F reports held 100.2% of BLDR's shares at Jun 30, 2026, compared with 98.6% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying BLDR?
In Q2 2026, 333 funds bought BLDR (94 of them new positions) and 409 sold (149 sold out completely). Among well known investors, 1 added and 5 cut. Our fund sentiment for BLDR is bearish.
What is BLDR's institutional put/call ratio?
Funds reported $25M of BLDR puts against $72.1M of calls, a put/call ratio of 0.35 (0.26 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this BLDR ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.