Builders FirstSource's three largest insider shareholders as of September 29, 2026 are Paul S Levy (Director, 1.73Mn shares), Peter M. Jackson (President Ceo, 272.33K shares), David E Flitman (President And Ceo, 235.64K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Paul S Levy | Director | 1,732,002 | 0 | 1,732,002 | 47.7% | 14 Sep, 2026 |
| 2 | Peter M. Jackson | President Ceo | 272,332 | 0 | 272,332 | 7.5% | 17 Mar, 2026 |
| 3 | David E Flitman | President And Ceo | 235,641 | 0 | 235,641 | 6.5% | 17 Mar, 2022 |
| 4 | Scott L Robins | President West Division | 0 | 151,247 | 151,247 | 4.2% | 17 Mar, 2026 |
| 5 | David E Rush | President Ceo | 124,842 | 0 | 124,842 | 3.4% | 18 May, 2026 |
| 6 | Stephen J Herron | Chief Operating Officer | 110,260 | 0 | 110,260 | 3.0% | 10 Jun, 2026 |
| 7 | Craig Arthur Steinke | Director | 102,626 | 0 | 102,626 | 2.8% | 14 Sep, 2026 |
| 8 | James Oleary | Director | 91,795 | 0 | 91,795 | 2.5% | 14 Sep, 2026 |
| 9 | Brett N Milgrim | Director | 82,634 | 0 | 82,634 | 2.3% | 18 May, 2026 |
| 10 | Pete Beckmann | Evp Cfo | 38,266 | 43,259 | 81,525 | 2.2% | 17 Mar, 2026 |
| 11 | Timothy D Johnson | Evp General Counsel | 73,151 | 0 | 73,151 | 2.0% | 26 Aug, 2025 |
| 12 | Jami Beckmann | Principal Accounting Officer | 42,598 | 20,053 | 62,651 | 1.7% | 24 May, 2024 |
| 13 | Michael Alan Farmer | President Commercial Ops | 60,058 | 0 | 60,058 | 1.7% | 24 May, 2024 |
| 14 | Michael Hiller | Coo Designate | 52,142 | 0 | 52,142 | 1.4% | 08 Jun, 2026 |
| 15 | Mark A Alexander | Director | 47,913 | 0 | 47,913 | 1.3% | 02 Jun, 2026 |
| 16 | Todd Vance | President East Division | 42,684 | 0 | 42,684 | 1.2% | 21 Jul, 2026 |
| 17 | Paul Vaughn | President West Division | 40,724 | 0 | 40,724 | 1.1% | 21 Jul, 2026 |
| 18 | Cleveland A Christophe | Director | 38,762 | 0 | 38,762 | 1.1% | 14 Sep, 2026 |
| 19 | Daniel Agroskin | Director | 36,442 | 0 | 36,442 | 1.0% | 03 Jun, 2022 |
| 20 | Gayatri Narayan | President Tech Digital | 28,252 | 0 | 28,252 | 0.8% | 16 Jun, 2026 |
| 21 | Cory Jacobs Boydston | Director | 27,191 | 0 | 27,191 | 0.7% | 14 Sep, 2026 |
| 22 | Amy B Messersmith | Chief People Officer | 26,053 | 0 | 26,053 | 0.7% | 24 May, 2024 |
| 23 | Paul M Mccrobie | President East Division | 22,207 | 0 | 22,207 | 0.6% | 18 Mar, 2025 |
| 24 | William B Hayes | Director | 20,221 | 0 | 20,221 | 0.6% | 14 Sep, 2026 |
| 25 | Dirkson R Charles | Director | 14,766 | 0 | 14,766 | 0.4% | 14 Sep, 2026 |
| 26 | Floyd F Sherman | Chief Executive Officer | 13,972 | 0 | 13,972 | 0.4% | 16 Jun, 2022 |
| 27 | Jonathan P Cope | President Commercial | 13,770 | 0 | 13,770 | 0.4% | 17 Mar, 2025 |
| 28 | Matthew Coley O'Brien | Chief Human Resources Officer | 7,406 | 0 | 7,406 | 0.2% | 21 Jul, 2026 |
| 29 | Maria Renz | Director | 6,870 | 0 | 6,870 | 0.2% | 14 Sep, 2026 |
| 30 | Cheryl Ainoa | Director | 4,629 | 0 | 4,629 | 0.1% | 18 May, 2026 |
| 31 | Matthew Trester | Principal Accounting Officer | 4,629 | 0 | 4,629 | 0.1% | 17 Mar, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 18 Jul, 2026 | Matthew Coley O'Brien | Chief Human Resources Officer | Acquired A | 7,406 | $0.00 | $0 | 7,406 | Direct |
| 18 Jul, 2026 | Todd Vance | President East Division | Acquired A | 3,366 | $0.00 | $0 | 42,684 | Direct |
| 18 Jul, 2026 | Paul Vaughn | President West Division | Acquired A | 3,366 | $0.00 | $0 | 40,724 | Direct |
| 13 Jun, 2026 | Gayatri Narayan | President Tech Digital | Disposed F | 2,842 | $77.77 | $221.02K | 28,252 | Direct |
| 05 Jun, 2026 | Stephen J Herron | Chief Operating Officer | Disposed G | 850 | $0.00 | $0 | 110,260 | Direct |
| 04 Jun, 2026 | Michael Hiller | Coo Designate | Disposed G | 900 | $0.00 | $0 | 52,142 | Direct |
| 01 Jun, 2026 | Dirkson R Charles | Director | Acquired A | 409 | $76.26 | $31.19K | 14,296 | Direct |
| 01 Jun, 2026 | Cory Jacobs Boydston | Director | Acquired A | 409 | $76.26 | $31.19K | 26,721 | Direct |
| 01 Jun, 2026 | William B Hayes | Director | Acquired A | 508 | $76.26 | $38.74K | 19,638 | Direct |
| 01 Jun, 2026 | Craig Arthur Steinke | Director | Acquired A | 491 | $76.26 | $37.44K | 102,062 | Direct |
| 01 Jun, 2026 | Mark A Alexander | Director | Acquired A | 409 | $76.26 | $31.19K | 47,913 | Direct |
| 01 Jun, 2026 | Cleveland A Christophe | Director | Acquired A | 491 | $76.26 | $37.44K | 38,198 | Direct |
| 01 Jun, 2026 | Paul S Levy | Director | Acquired A | 1,049 | $76.26 | $80.00K | 1,730,798 | Direct |
| 01 Jun, 2026 | Maria Renz | Director | Acquired A | 426 | $76.26 | $32.49K | 6,381 | Direct |
| 01 Jun, 2026 | James Oleary | Director | Acquired A | 491 | $76.26 | $37.44K | 91,231 | Direct |
| 14 May, 2026 | William B Hayes | Director | Acquired A | 2,558 | $0.00 | $0 | 19,130 | Direct |
| 14 May, 2026 | James Oleary | Director | Acquired A | 2,558 | $0.00 | $0 | 90,740 | Direct |
| 14 May, 2026 | Cleveland A Christophe | Director | Acquired A | 2,558 | $0.00 | $0 | 37,707 | Direct |
| 14 May, 2026 | Cory Jacobs Boydston | Director | Acquired A | 2,558 | $0.00 | $0 | 26,312 | Direct |
| 14 May, 2026 | Paul S Levy | Director | Acquired A | 2,558 | $0.00 | $0 | 1,729,749 | Direct |