Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
699 institutional managers reported holding BLDR for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 42%. 95 opened new positions; 151 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 12.32M | 11.22% | $1.01B | trimmed -0.5% | ≤2013 |
| BlackRock | 8.76M | 7.97% | $721.3M | trimmed -1.3% | ≤2013 |
| State Street | 5.12M | 4.66% | $421.5M | unchanged | ≤2013 |
| Wellington Management | 3.68M | 3.35% | $302.9M | added +10.9% | 2019 Q3 |
| Dimensional Fund Advisors | 2.97M | 2.70% | $244.3M | added +12.3% | ≤2013 |
| Capital International Investors | 2.94M | 2.68% | $242.3M | added +16.5% | 2025 Q3 |
| Geode Capital | 2.88M | 2.63% | $237.5M | added +2.4% | ≤2013 |
| Sands Capital | 2.62M | 2.39% | $215.8M | trimmed -5% | 2025 Q1 |
| Invesco | 2.60M | 2.37% | $214.4M | added +23.9% | ≤2013 |
| Brave Warrior Advisors, LLC (focused) | 2.37M | 2.16% | $195.3M | unchanged | 2025 Q1 |
| Coliseum Capital Management, LLC (focused) | 2.09M | 1.91% | $172.3M | added +168.1% | 2024 Q4 |
| Diamond Hill Capital Management INC | 1.76M | 1.60% | $145.2M | trimmed -5.8% | 2024 Q3 |
| Goldman Sachs | 1.72M | 1.56% | $141.3M | added +72.5% | ≤2013 |
| Focus Partners Wealth | 1.66M | 1.51% | $136.9M | added +140.1% | 2023 Q4 |
| Boston Partners | 1.60M | 1.46% | $131.9M | trimmed -10.5% | 2021 Q1 |
| Morgan Stanley | 1.41M | 1.29% | $116.4M | trimmed -8.5% | ≤2013 |
| Pictet Asset Management Holding SA | 1.38M | 1.25% | $113.5M | added +74.6% | 2020 Q1 |
| UBS | 1.27M | 1.15% | $104.3M | added +22.4% | ≤2013 |
| FMR (Fidelity) | 1.27M | 1.15% | $104.3M | trimmed -63.6% | 2014 Q1 |
| Deutsche Bank AG\ | 1.13M | 1.03% | $93.4M | added +35.7% | ≤2013 |
| Charles Schwab Investment Management | 1.12M | 1.02% | $92.3M | added +7.2% | ≤2013 |
| Public Sector Pension Investment Board | 1.06M | 0.97% | $87.4M | unchanged | 2023 Q4 |
| MFS Investment Management | 1.02M | 0.93% | $83.9M | trimmed -0.7% | 2021 Q1 |
| Northern Trust | 954.8k | 0.87% | $78.6M | trimmed -3.8% | ≤2013 |
| Bank OF America CORP /DE/ | 885.1k | 0.81% | $72.9M | trimmed -7% | ≤2013 |
| Frontier Capital Management CO LLC | 860.5k | 0.78% | $70.8M | added +49.3% | 2020 Q2 |
| Mirae Asset Global Etfs Holdings LTD. | 845.4k | 0.77% | $69.6M | added +4.1% | 2021 Q1 |
| Evercore Wealth Management, LLC | 802.7k | 0.73% | $66.1M | trimmed -2% | 2021 Q3 |
| Capital Group (American Funds) | 779.2k | 0.71% | $64.2M | added +1.4% | 2021 Q1 |
| Marshall Wace | 776.1k | 0.71% | $63.9M | added +397.9% | 2024 Q3 |
| Loews CORP (focused) | 740.0k | 0.67% | $60.9M | added +164.3% | 2025 Q2 |
| Janus Henderson | 688.7k | 0.63% | $56.7M | trimmed -6% | 2018 Q3 |
| Fiera Capital CORP | 686.9k | 0.63% | $56.6M | added +5.1% | 2024 Q4 |
| Clearbridge Investments, LLC | 669.5k | 0.61% | $55.1M | added +4% | 2024 Q2 |
| Point72 | 572.6k | 0.52% | $47.1M | added +98.9% | 2025 Q4 |
| Millennium Management | 571.3k | 0.52% | $47.0M | added +122.8% | 2019 Q1 |
| Neuberger Berman Group LLC | 567.3k | 0.52% | $46.7M | added +139.9% | 2017 Q4 |
| Holocene Advisors | 562.9k | 0.51% | $46.3M | added +1589.6% | 2024 Q3 |
| Amundi | 560.6k | 0.51% | $46.2M | added +27.6% | 2022 Q3 |
| Royal Bank OF Canada | 551.9k | 0.50% | $45.4M | added +48.6% | 2015 Q2 |
| BNY Mellon | 537.4k | 0.49% | $44.2M | trimmed -21.1% | ≤2013 |
| Citadel Advisors | 537.3k | 0.49% | $44.2M | trimmed -58.1% | 2015 Q2 |
| Bessemer Group INC | 528.1k | 0.48% | $43.5M | added +5.4% | 2021 Q4 |
| Robotti Robert | 523.6k | 0.48% | $43.1M | added +22.6% | ≤2013 |
| Samlyn Capital, LLC | 511.4k | 0.47% | $42.1M | added +49.7% | 2025 Q4 |
| Long Focus Capital Management, LLC | 479.0k | 0.44% | $39.4M | added +43% | 2025 Q2 |
| Barclays PLC | 461.7k | 0.42% | $38.0M | added +51.3% | ≤2013 |
| Legal & General Group PLC | 442.8k | 0.40% | $36.5M | trimmed -20% | 2014 Q3 |
| Wells Fargo & COMPANY/MN | 424.5k | 0.39% | $34.9M | added +71.1% | 2013 Q3 |
| Citigroup INC | 410.2k | 0.37% | $33.8M | added +14.2% | ≤2013 |
Largest 50 of 699 shown; the full ranked, searchable register is at boothcheck.com/holders/BLDR. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.