BUILDERS FIRSTSOURCE INC (BLDR): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in BLDR · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
27
13F filers
Aggregate Value
$820.1M
Across holders
Last Price
$70.22
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity19 increased8 reduced10 exited
Full exits: Verition Fund Management LLC, Point72 Asset Management, L.P., RENAISSANCE TECHNOLOGIES LLC, Lighthouse Investment Partners, LLC, Alphadyne Asset Management LP, BALYASNY ASSET MANAGEMENT LLC, Schonfeld Strategic Advisors LLC, Magnetar Financial LLC, SOROS FUND MANAGEMENT LLC, Brevan Howard Capital Management LP
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| SANDS CAPITAL MANAGEMENT, LLC CIK 0001020066 | Institutional Manager | 2.28M | $204.3M | 24.9% | 0.8% | Reduced | $-30.2M | Q2 2026 |
| D1 Capital Partners L.P. CIK 0001747057 | Hedge Fund | 1.64M | $146.7M | 17.9% | 0.4% | Added | — | Q2 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 1.07M | $95.5M | 11.6% | 0.2% | Added | +$45.1M | Q2 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 916K | $81.9M | 10.0% | 0.0% | Added | +$56.6M | Q2 2026 |
| Clearbridge Investments, LLC CIK 0001348883 | Hedge Fund | 717K | $64.2M | 7.8% | 0.1% | Added | +$4.3M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 466K | $41.7M | 5.1% | 0.0% | Reduced | +$11.5M | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 355K | $31.7M | 3.9% | 0.0% | Reduced | $-4.2M | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 319K | $28.6M | 3.5% | 0.0% | Added | +$27.8M | Q2 2026 |
| Grantham, Mayo, Van Otterloo & Co. LLC CIK 0001352662 | Institutional Manager | 240K | $21.5M | 2.6% | 0.0% | Reduced | $-5.7M | Q2 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 228K | $20.4M | 2.5% | 0.0% | Added | +$8.2M | Q2 2026 |
Reduced
Institutional Manager
$204.3M· 24.9% of total· 0.8% port· 2.28M sh· $-30.2M QoQ· Q2 2026
Added
Hedge Fund
$146.7M· 17.9% of total· 0.4% port· 1.64M sh· — QoQ· Q2 2026
Added
Hedge Fund
$95.5M· 11.6% of total· 0.2% port· 1.07M sh· +$45.1M QoQ· Q2 2026
Added
Hedge Fund
$81.9M· 10.0% of total· 0.0% port· 916K sh· +$56.6M QoQ· Q2 2026
Added
Hedge Fund
$64.2M· 7.8% of total· 0.1% port· 717K sh· +$4.3M QoQ· Q2 2026
Reduced
Hedge Fund
$41.7M· 5.1% of total· 0.0% port· 466K sh· +$11.5M QoQ· Q2 2026
Reduced
Hedge Fund
$31.7M· 3.9% of total· 0.0% port· 355K sh· $-4.2M QoQ· Q2 2026
Added
Hedge Fund
$28.6M· 3.5% of total· 0.0% port· 319K sh· +$27.8M QoQ· Q2 2026
Reduced
Institutional Manager
$21.5M· 2.6% of total· 0.0% port· 240K sh· $-5.7M QoQ· Q2 2026
Added
Hedge Fund
$20.4M· 2.5% of total· 0.0% port· 228K sh· +$8.2M QoQ· Q2 2026
Reduced
Hedge Fund
$12.5M· 1.5% of total· 0.0% port· 140K sh· $-4.8M QoQ· Q2 2026
Reduced
Hedge Fund
$12.5M· 1.5% of total· 0.2% port· 139K sh· $-9.2M QoQ· Q2 2026
Reduced
Hedge Fund
$11.9M· 1.5% of total· 0.0% port· 133K sh· +$11.8M QoQ· Q2 2026
Added
Hedge Fund
$10.6M· 1.3% of total· 0.0% port· 119K sh· +$5.5M QoQ· Q2 2026
Added
Hedge Fund
$8.6M· 1.0% of total· 0.0% port· 96K sh· +$2.7M QoQ· Q2 2026
Added
Hedge Fund
$4.6M· 0.6% of total· 0.0% port· 51K sh· +$4.2M QoQ· Q2 2026
Added
Hedge Fund
$3.7M· 0.4% of total· 0.0% port· 41K sh· +$3.4M QoQ· Q2 2026
Added
Hedge Fund
$3.6M· 0.4% of total· 0.0% port· 40K sh· +$2.4M QoQ· Q2 2026
Added
Hedge Fund
$3.4M· 0.4% of total· 0.0% port· 37K sh· +$2.9M QoQ· Q2 2026
Added
Hedge Fund
$2.7M· 0.3% of total· 0.0% port· 30K sh· $-8.7M QoQ· Q2 2026
Added
Hedge Fund
$2.1M· 0.3% of total· 0.0% port· 24K sh· $-5.4M QoQ· Q2 2026
Added
Hedge Fund
$2.1M· 0.3% of total· 0.2% port· 23K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$2.0M· 0.2% of total· 0.0% port· 22K sh· $-1.7M QoQ· Q2 2026
Added
Institutional Manager
$1.8M· 0.2% of total· 0.1% port· 20K sh· — QoQ· Q2 2026
Added
Hedge Fund
$1.6M· 0.2% of total· 0.0% port· 17K sh· +$469K QoQ· Q2 2026
Added
Hedge Fund
$248K· 0.0% of total· 0.0% port· 3K sh· $-647K QoQ· Q2 2026
Added
Institutional Manager
$15K· 0.0% of total· 0.0% port· 167 sh· — QoQ· Q2 2026
1–10 of 27
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