Latest Period
Q1 2026
Security Snapshot
Builders FirstSource, Inc. - Common Stock (BLDR) Institutional Ownership
CUSIP: 12008R107
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
712
Shares (Excl. Options)
106,057,143
Price
$82.33
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- Type / Class
- Equity / Common Stock
- Symbol
- BLDR on NYSE
- Shares outstanding
- 110,722,736
- Price per share
- $88.12
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 106,057,143
- Total reported value
- $8,731,514,543
- % of total 13F portfolios
- 0.01%
- Share change
- +1,005,662
- Value change
- +$2,700,164
- Number of holders
- 712
- Price from insider filings
- $88.12
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- BLDR - Builders FirstSource, Inc. - Common Stock is tracked under CUSIP 12008R107.
- 712 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 763 to 712 between Q4 2025 and Q1 2026.
- Reported value moved from $10,814,779,542 to $8,731,514,543.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 712 institutions filings for Q1 2026.
Security key
12008R107
Latest holder period
Q1 2026
13F holders
712
13D/G owners
3
CIK / CUSIP context first
Open Q1 2026 holders
BLDR full holder history
Builders FirstSource, Inc. SEC filings
Builders FirstSource, Inc. company facts
Builders FirstSource, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 12008R107:
Significant Owners of Builders FirstSource, Inc. - Common Stock (BLDR) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 7.5% | $1,024,400,907 | 8,472,425 | BlackRock, Inc. | 31 Mar 2025 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 7.2% | $656,337,806 | 7,972,037 | Vanguard Capital Management | 31 Mar 2026 | |||
| FMR LLC | 3.3% | -70% | $441,564,014 | -$975,081,623 | 3,699,740 | -69% | FMR LLC | 28 Nov 2025 |
As of 31 Mar 2026, 712 institutional investors reported holding 106,057,143 shares of Builders FirstSource, Inc. - Common Stock (BLDR). This represents 96% of the company’s total 110,722,736 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of Builders FirstSource, Inc. - Common Stock (BLDR) together control 58% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7.9% | 8,761,277 | -1.3% | 0.01% | $721,315,954 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.3% | 7,027,074 | 0% | 0.01% | $578,539,002 |
| STATE STREET CORP | 4.6% | 5,120,090 | +0.23% | 0.01% | $421,537,010 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.9% | 4,318,795 | 0% | 0.02% | $355,566,392 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.3% | 3,679,457 | +11% | 0.06% | $302,929,695 |
| DIMENSIONAL FUND ADVISORS LP | 2.7% | 2,967,744 | +12% | 0.05% | $244,300,941 |
| Capital International Investors | 2.7% | 2,943,131 | +16% | 0.06% | $242,307,975 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6% | 2,884,519 | +2.4% | 0.01% | $236,562,009 |
| SANDS CAPITAL MANAGEMENT, LLC | 2.4% | 2,621,085 | -5% | 0.85% | $215,793,928 |
| Invesco Ltd. | 2.4% | 2,604,322 | +24% | 0.03% | $214,413,830 |
| Brave Warrior Advisors, LLC | 2.1% | 2,372,292 | -0.29% | 4.8% | $195,310,800 |
| Coliseum Capital Management, LLC | 1.9% | 2,093,218 | +168% | 14% | $172,334,638 |
| DIAMOND HILL CAPITAL MANAGEMENT INC | 1.6% | 1,763,934 | -5.8% | 0.91% | $145,224,686 |
| GOLDMAN SACHS GROUP INC | 1.6% | 1,716,804 | +72% | 0.02% | $141,344,473 |
| Focus Partners Wealth | 1.5% | 1,663,200 | +140% | 0.15% | $136,931,332 |
| Boston Partners | 1.4% | 1,602,360 | -11% | 0.14% | $131,908,852 |
| MORGAN STANLEY | 1.3% | 1,413,231 | -8.5% | 0.01% | $116,351,346 |
| Pictet Asset Management Holding SA | 1.2% | 1,378,332 | +75% | 0.12% | $113,478,074 |
| FMR LLC | 1.1% | 1,266,304 | -64% | 0.01% | $104,254,846 |
| DEUTSCHE BANK AG\ | 1% | 1,134,505 | +36% | 0.03% | $93,403,796 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1% | 1,121,077 | +7.2% | 0.01% | $92,298,269 |
| Public Sector Pension Investment Board | 0.96% | 1,061,232 | +0.33% | 0.27% | $87,371,231 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 0.92% | 1,018,615 | -0.7% | 0.03% | $83,862,573 |
| NORTHERN TRUST CORP | 0.86% | 954,772 | -3.8% | 0.01% | $78,606,380 |
| BANK OF AMERICA CORP /DE/ | 0.8% | 885,081 | -7% | 0.01% | $72,868,718 |
Institutional Holders of Builders FirstSource, Inc. - Common Stock (BLDR) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 106,057,143 | $8,731,514,543 | +$2,700,164 | $82.33 | 712 |
| 2025 Q4 | 105,091,508 | $10,814,779,542 | -$801,434,618 | $102.89 | 763 |
| 2025 Q3 | 112,010,421 | $13,582,076,301 | +$442,877,412 | $121.25 | 769 |
| 2025 Q2 | 108,521,256 | $12,669,107,201 | +$33,768,452 | $116.69 | 767 |
| 2025 Q1 | 107,897,956 | $13,474,527,284 | -$63,072,039 | $124.94 | 776 |
| 2024 Q4 | 108,658,119 | $15,537,279,891 | -$439,862,706 | $142.93 | 810 |
| 2024 Q3 | 110,281,848 | $21,375,040,347 | +$732,830,448 | $193.86 | 819 |
| 2024 Q2 | 108,824,708 | $15,057,578,098 | -$681,146,953 | $138.41 | 756 |
| 2024 Q1 | 111,567,717 | $23,244,371,206 | -$726,384,069 | $208.55 | 850 |
| 2023 Q4 | 115,332,712 | $19,248,365,153 | -$211,273,334 | $166.94 | 733 |
| 2023 Q3 | 116,866,389 | $14,545,411,644 | -$243,609,536 | $124.49 | 667 |
| 2023 Q2 | 118,267,918 | $16,084,612,466 | -$1,286,264,251 | $136.00 | 651 |
| 2023 Q1 | 129,139,132 | $11,461,658,661 | -$724,588,955 | $88.78 | 527 |
| 2022 Q4 | 139,285,910 | $9,038,764,285 | -$661,101,846 | $64.88 | 512 |
| 2022 Q3 | 149,625,282 | $8,815,930,131 | -$596,493,662 | $58.92 | 483 |
| 2022 Q2 | 159,612,650 | $8,569,068,421 | -$615,801,788 | $53.70 | 470 |
| 2022 Q1 | 171,256,026 | $11,064,404,754 | -$352,764,897 | $64.54 | 498 |
| 2021 Q4 | 174,957,418 | $14,991,948,010 | -$2,299,526,431 | $85.71 | 478 |
| 2021 Q3 | 202,715,454 | $10,489,295,230 | -$55,352,281 | $51.74 | 391 |
| 2021 Q2 | 204,736,143 | $8,734,632,740 | -$73,797,817 | $42.66 | 393 |
| 2021 Q1 | 206,214,635 | $9,562,514,358 | +$3,329,655,736 | $46.37 | 370 |
| 2020 Q4 | 134,858,257 | $5,503,716,969 | +$335,864,194 | $40.81 | 303 |
| 2020 Q3 | 125,010,636 | $4,077,668,637 | +$485,207,256 | $32.62 | 284 |
| 2020 Q2 | 112,799,056 | $2,332,821,949 | -$29,379,762 | $20.70 | 227 |
| 2020 Q1 | 114,124,278 | $1,394,449,578 | -$13,779,207 | $12.23 | 232 |
| 2019 Q4 | 110,535,497 | $2,805,741,434 | -$13,282,088 | $25.41 | 279 |
| 2019 Q3 | 104,190,437 | $2,141,690,594 | +$45,781,864 | $20.58 | 242 |
| 2019 Q2 | 102,082,697 | $1,719,234,530 | -$89,791,514 | $16.86 | 213 |
| 2019 Q1 | 109,103,054 | $1,455,428,881 | -$4,887,265 | $13.34 | 216 |
| 2018 Q4 | 109,803,859 | $1,197,992,495 | -$29,178,405 | $10.91 | 206 |
| 2018 Q3 | 109,086,337 | $1,601,362,689 | -$13,406,710 | $14.68 | 214 |
| 2018 Q2 | 108,028,205 | $1,975,854,530 | -$77,205,358 | $18.29 | 226 |
| 2018 Q1 | 111,434,902 | $2,211,492,970 | -$102,538,577 | $19.84 | 262 |
| 2017 Q4 | 111,955,445 | $2,439,304,317 | -$1,004,630 | $21.79 | 241 |
| 2017 Q3 | 107,408,383 | $1,931,173,114 | +$214,124,955 | $17.99 | 229 |
| 2017 Q2 | 96,228,116 | $1,470,745,799 | +$40,090,887 | $15.32 | 191 |
| 2017 Q1 | 93,436,404 | $1,392,184,921 | +$206,339,598 | $14.90 | 196 |
| 2016 Q4 | 88,101,798 | $966,480,155 | -$50,900,755 | $10.97 | 173 |
| 2016 Q3 | 92,585,519 | $1,065,611,883 | +$7,444,018 | $11.51 | 163 |
| 2016 Q2 | 92,130,782 | $1,036,745,091 | +$42,289,963 | $11.25 | 162 |
| 2016 Q1 | 87,748,741 | $988,837,265 | -$3,423,534 | $11.27 | 165 |
| 2015 Q4 | 88,942,426 | $985,408,530 | +$38,785,499 | $11.08 | 168 |
| 2015 Q3 | 104,888,128 | $1,329,910,660 | +$137,478,187 | $12.68 | 172 |
| 2015 Q2 | 73,770,645 | $947,112,511 | +$108,440,628 | $12.84 | 113 |
| 2015 Q1 | 66,384,563 | $442,610,553 | -$2,813,106 | $6.67 | 91 |
| 2014 Q4 | 66,773,874 | $458,517,258 | -$50,066 | $6.87 | 90 |
| 2014 Q3 | 66,401,995 | $361,749,709 | -$9,964,421 | $5.45 | 101 |
| 2014 Q2 | 67,770,672 | $506,751,894 | -$1,665,960 | $7.48 | 117 |
| 2014 Q1 | 67,581,181 | $614,882,972 | +$19,624,388 | $9.10 | 105 |