XNYS · RETAIL-LUMBER & OTHER BUILDING MATERIALS DEALERS · RETAIL-LUMBER & OTHER BUILDING MATERIALS DEALERS
Includes notes from domestic 8-K and foreign private issuer 6-K disclosures.
Builders FirstSource (BLDR) had 1 Form 144 pre-sale notice filed on 2026-05-08. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 6/13/2026 | Narayan Gayatri | President - Tech & Digital | TAX_WITHHOLD | -2,842 | $78 | $221,022 |
| 6/5/2026 | Herron Stephen J | Chief Operating Officer | GIFT | -850 | — | — |
| 6/4/2026 | Hiller Michael | COO-Designate | GIFT | -900 | — | — |
| 6/1/2026 | Boydston Cory Jacobs | — | GRANT | 409 | $76 | $31,190 |
| 6/1/2026 | Renz Maria | — | GRANT | 426 | $76 | $32,487 |
| 6/1/2026 | ALEXANDER MARK A | — | GRANT | 409 | $76 | $31,190 |
| 6/1/2026 | OLEARY JAMES | — | GRANT | 491 | $76 | $37,444 |
| 6/1/2026 | CHRISTOPHE CLEVELAND A | — | GRANT | 491 | $76 | $37,444 |
| 6/1/2026 | LEVY PAUL S | — | GRANT | 1,049 | $76 | $79,997 |
| 6/1/2026 | Hayes William B | — | GRANT | 508 | $76 | $38,740 |
| 6/1/2026 | Charles Dirkson R | — | GRANT | 409 | $76 | $31,190 |
| 6/1/2026 | Steinke Craig Arthur | — | GRANT | 491 | $76 | $37,444 |
| 5/14/2026 | LEVY PAUL S | — | GRANT | 2,558 | — | — |
| 5/14/2026 | Hayes William B | — | GRANT | 2,558 | — | — |
| 5/14/2026 | Renz Maria | — | GRANT | 2,558 | — | — |
| 5/14/2026 | ALEXANDER MARK A | — | GRANT | 2,558 | — | — |
| 5/14/2026 | CHRISTOPHE CLEVELAND A | — | GRANT | 2,558 | — | — |
| 5/14/2026 | Rush David E | — | GRANT | 2,558 | — | — |
| 5/14/2026 | Boydston Cory Jacobs | — | GRANT | 2,558 | — | — |
| 5/14/2026 | MILGRIM BRETT N | — | GRANT | 2,558 | — | — |
| Date | Filer | Relationship | Est. shares | Filing |
|---|---|---|---|---|
| 5/8/2026 | Rush David E | — | 5,000 | SEC |
| Institution | Shares | Value ($) | Change % | Filing date |
|---|---|---|---|---|
| BlackRock | 11,340,555 | $1,569,646,211 | — | 8/13/2024 |
| Vanguard Group | 12,377,575 | $1,273,528,692 | — | 1/29/2026 |
| State Street | 5,108,120 | $525,574,467 | — | 2/13/2026 |
| Fidelity (FMR) | 3,476,283 | $357,674,831 | — | 2/17/2026 |
| Citadel Advisors | 1,602,288 | $164,859,412 | — | 2/17/2026 |
| Point72 | 400,987 | $41,257,552 | — | 2/17/2026 |
| JP Morgan Chase | 325,675 | $33,508,726 | — | 2/11/2026 |
| Millennium Management | 297,663 | $30,626,546 | — | 2/17/2026 |
| Two Sigma | 182,670 | $18,794,916 | — | 2/17/2026 |
| AQR Capital | 110,537 | $11,373,195 | — | 2/17/2026 |
| DE Shaw | 58,797 | $6,049,623 | — | 2/17/2026 |