As of September 29, 2026, the three largest insider holders of EXP are Michael Haack (President And Ceo, 87.95K shares), Dale Craig Kesler (Evp And Cfo, 56.58K shares), Michael R Nicolais (Director, 54.41K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Michael Haack | President And Ceo | 87,955 | 0 | 87,955 | 21.7% | 26 May, 2026 |
| 2 | Michael R Nicolais | Director | 58,373 | 0 | 58,373 | 14.4% | 03 Aug, 2026 |
| 3 | Dale Craig Kesler | Evp And Cfo | 56,578 | 0 | 56,578 | 14.0% | 26 May, 2026 |
| 4 | Richard Beckwitt | Director | 26,801 | 0 | 26,801 | 6.6% | 03 Aug, 2026 |
| 5 | Steven L Wentzel | President (American Gypsum) | 23,274 | 0 | 23,274 | 5.7% | 19 May, 2023 |
| 6 | Matt Newby | Evp General Counsel | 20,647 | 0 | 20,647 | 5.1% | 26 May, 2026 |
| 7 | William R Devlin | Svp, Controller | 17,505 | 0 | 17,505 | 4.3% | 26 May, 2026 |
| 8 | James H Graass | Evp General Counsel | 14,294 | 0 | 14,294 | 3.5% | 03 Jun, 2022 |
| 9 | Robert S Stewart | Evp Strategy Corp. Develop. | 13,547 | 0 | 13,547 | 3.3% | 05 Jun, 2023 |
| 10 | Eric Cribbs | President (American Gypsum) | 13,113 | 0 | 13,113 | 3.2% | 26 May, 2026 |
| 11 | Martin M Ellen | Director | 11,511 | 0 | 11,511 | 2.8% | 03 Aug, 2026 |
| 12 | Mary P Ricciardello | Director | 10,932 | 0 | 10,932 | 2.7% | 03 Aug, 2026 |
| 13 | Ed H Jr Bowman | Director | 10,485 | 0 | 10,485 | 2.6% | 17 Jun, 2022 |
| 14 | George John Damiris | Director | 10,389 | 0 | 10,389 | 2.6% | 03 Aug, 2026 |
| 15 | Tony Thompson | Senior Vice President | 10,142 | 0 | 10,142 | 2.5% | 26 Aug, 2026 |
| 16 | Margot Lebenberg Carter | Director | 6,757 | 0 | 6,757 | 1.7% | 03 Aug, 2026 |
| 17 | David E Rush | Director | 5,446 | 0 | 5,446 | 1.3% | 03 Aug, 2026 |
| 18 | Alex Haddock | Senior Vice President | 3,837 | 0 | 3,837 | 0.9% | 26 May, 2026 |
| 19 | Mauro Gregorio | Director | 1,273 | 0 | 1,273 | 0.3% | 07 Aug, 2026 |
| 20 | David B Powers | Ceo | 1,133 | 0 | 1,133 | 0.3% | 05 Aug, 2024 |
| 21 | Richard Ross Stewart | Director | 0 | 1,100 | 1,100 | 0.3% | 22 Nov, 2024 |
| 22 | Sam Guzman | Senior Vice President | 314 | 0 | 314 | 0.1% | 27 Jul, 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 |
|---|---|---|---|---|---|---|---|---|
| 24 Aug, 2026 | Tony Thompson | Senior Vice President | Disposed S | 3,074 | $203.96 | $626.98K | 10,142 | Direct |
| 05 Aug, 2026 | Mauro Gregorio | Director | Disposed G | 1,173 | $0.00 | $0 | 1,273 | Direct |
| 30 Jul, 2026 | David E Rush | Director | Acquired A | 1,273 | $0.00 | $0 | 5,446 | Direct |
| 30 Jul, 2026 | Mary P Ricciardello | Director | Acquired A | 955 | $0.00 | $0 | 10,932 | Direct |
| 30 Jul, 2026 | Martin M Ellen | Director | Acquired A | 1,400 | $0.00 | $0 | 11,511 | Direct |
| 30 Jul, 2026 | Margot Lebenberg Carter | Director | Acquired A | 1,400 | $0.00 | $0 | 11,972 | Direct |
| 30 Jul, 2026 | George John Damiris | Director | Acquired A | 1,273 | $0.00 | $0 | 10,389 | Direct |
| 30 Jul, 2026 | Richard Beckwitt | Director | Acquired A | 1,400 | $0.00 | $0 | 26,801 | Direct |
| 30 Jul, 2026 | Michael R Nicolais | Director | Acquired A | 1,549 | $0.00 | $0 | 54,411 | Direct |
| 30 Jul, 2026 | Mauro Gregorio | Director | Acquired A | 1,273 | $0.00 | $0 | 2,446 | Direct |
| 31 Jul, 2026 | Margot Lebenberg Carter | Director | Disposed S | 478 | $204.00 | $97.51K | 11,494 | Direct |
| 30 Jul, 2026 | Mary P Ricciardello | Director | Acquired A | 827 | $0.00 | $0 | 827 | Direct |
| 31 Jul, 2026 | Margot Lebenberg Carter | Director | Disposed S | 2,517 | $203.57 | $512.39K | 8,977 | Direct |
| 31 Jul, 2026 | Margot Lebenberg Carter | Director | Disposed S | 1,659 | $204.56 | $339.37K | 7,318 | Direct |
| 30 Jul, 2026 | Michael R Nicolais | Director | Acquired A | 1,341 | $0.00 | $0 | 1,341 | Direct |
| 03 Aug, 2026 | Margot Lebenberg Carter | Director | Disposed S | 561 | $212.35 | $119.13K | 6,757 | Direct |
| 23 Jul, 2026 | Sam Guzman | Senior Vice President | Acquired M | 416 | $203.37 | $84.60K | 416 | Direct |
| 23 Jul, 2026 | Sam Guzman | Senior Vice President | Disposed F | 102 | $203.37 | $20.74K | 314 | Direct |
| 23 Jul, 2026 | Sam Guzman | Senior Vice President | Disposed M | 416 | $0.00 | $0 | 832 | Direct |
| 17 Jun, 2026 | Michael R Nicolais | Director | Acquired M | 4,139 | $81.28 | $336.42K | 54,439 | Direct |