PRM · Insider Trading
Perimeter Solutions, Inc.
Every open-market purchase and sale reported by PRM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-13 | WAPGP LLC | 10%+ Owner | Sell | −28,529,895 | −$978.05M |
| 2026-05-22 | Haitham Khouri | Chief Executive Officer | Sell | −229,535 | −$7.28M |
| 2026-05-15 | Jeffrey Emery | President - Global Fire Safety | MIXED | — | −$1.34M |
| 2026-05-15 | Kyle Sable | Chief Financial Officer | MIXED | — | −$1.22M |
| 2026-05-12 | Kyle Sable | Chief Financial Officer | MIXED | — | −$4.77M |
| 2026-05-12 | Jeffrey Emery | President - Global Fire Safety | MIXED | — | −$3.55M |
| 2026-04-24 | W Nicholas Howley | Director | G | −3,480,640 | — |
| 2026-04-03 | W Nicholas Howley | Director | G | −1,000,000 | — |
| 2026-03-11 | William N Thorndike Jr | Director | Sell | −325,000 | −$7.60M |
| 2026-03-06 | William N Thorndike Jr | Director | Sell | −325,000 | −$7.80M |
| 2026-03-05 | Haitham Khouri | Chief Executive Officer | A | +1,600,317 | — |
| 2026-03-05 | Tracy Britt Cool | Director | A | +65,843 | — |
| 2026-03-05 | William N Thorndike Jr | Director | A | +5,582,492 | — |
| 2026-03-05 | W Nicholas Howley | Director | MIXED | +4,480,640 | — |
| 2026-03-05 | Vivek Raj | Director | A | +555,859 | — |
| 2026-03-02 | Noriko Yokozuka | General Counsel | A | +120,000 deriv. | — |
| 2026-03-02 | Jeffrey Emery | President - Global Fire Safety | A | +200,000 deriv. | — |
| 2026-03-02 | Tracy Britt Cool | Director | A | +28,944 deriv. | — |
| 2026-03-02 | Haitham Khouri | Chief Executive Officer | A | +588,489 deriv. | — |
| 2026-03-02 | Grant Bowman | President, Specialty Products | A | +139,820 deriv. | — |
| 2026-03-02 | Kyle Sable | Chief Financial Officer | A | +170,000 deriv. | — |
| 2026-03-02 | III Jorge L. Valladares | Director | A | +12,388 deriv. | — |
| 2026-03-02 | Robert S Henderson | Director | A | +38,599 deriv. | — |
| 2026-03-02 | Vivek Raj | Director | A | +28,944 deriv. | — |
| 2026-03-02 | Sean P Hennessy | Director | A | +35,944 deriv. | — |
| 2026-03-02 | Bernt G Iversen II | Director | A | +35,682 deriv. | — |
| 2025-12-16 | Kyle Sable | Chief Financial Officer | MIXED | — | −$2.01M |
| 2025-12-16 | Noriko Yokozuka | General Counsel | MIXED | — | −$2.54M |
| 2025-12-11 | William N Thorndike Jr | Director | G | −673,685 | — |
| 2025-11-26 | W Nicholas Howley | Director | G | −746,767 | — |
| 2025-09-15 | Vivek Raj | Director | Sell | −25,000 | −$561.25K |
| 2025-09-08 | Kyle Sable | Chief Financial Officer | MIXED | — | −$726.40K |
| 2025-09-08 | Jeffrey Emery | President - Global Fire Safety | MIXED | — | −$4.18M |
| 2025-07-01 | WindAcre Partnership Master Fund, LP | 10%+ Owner | Buy | +1,273,000 | +$17.80M |
| 2025-06-24 | William N Thorndike Jr | Director | J | +746,767 | — |
| 2025-06-24 | Vivek Raj | Director | J | +78,569 | — |
| 2025-06-24 | W Nicholas Howley | Director | J | +746,767 | — |
| 2025-06-24 | Haitham Khouri | Chief Executive Officer | J | +254,000 | — |
| 2025-06-24 | Tracy Britt Cool | Director | J | +11,201 | — |
| 2025-05-23 | Vivek Raj | Director | Sell | −32,000 | −$374.40K |
| 2025-05-20 | Vivek Raj | Director | Sell | −268,810 | −$3.17M |
| 2025-05-15 | Vivek Raj | Director | Sell | −102,284 | −$1.22M |
| 2025-03-17 | Vivek Raj | Director | Sell | −250,000 | −$2.29M |
| 2025-02-21 | Bernt G Iversen II | Director | A | — | — |
| 2025-02-21 | Haitham Khouri | Chief Executive Officer | A | — | — |
| 2025-02-21 | Grant Bowman | President, Specialty Products | A | +100,000 deriv. | — |
| 2025-02-21 | Vivek Raj | Director | A | — | — |
| 2025-02-21 | Edward D. Goldberg | Vice Chairman | A | — | — |
| 2025-02-21 | Jeffrey Emery | President - Global Fire Safety | A | +600,000 deriv. | — |
| 2025-02-21 | Sean P Hennessy | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| WindAcre Partnership Master Fund, LP | 10%+ Owner | 21,854,600 | $614.11M |
| WAPGP LLC | 10%+ Owner | 19,009,600 | $534.17M |
| William N Thorndike Jr | Director | 8,735,656 | $245.47M |
| Haitham Khouri | Chief Executive Officer | 3,309,235 | $92.99M |
| Vivek Raj | Director | 677,560 | $19.04M |
| W Nicholas Howley | Director | 606,200 | $17.03M |
| Robert S Henderson | Director | 328,416 | $9.23M |
| III Jorge L. Valladares | Director | 258,000 | $7.25M |
| Tracy Britt Cool | Director | 256,693 | $7.21M |
| Edward D. Goldberg | Vice Chairman | 222,957 | $6.27M |
| Bernt G Iversen II | Director | 126,861 | $3.56M |
| Sean P Hennessy | Director | 100,000 | $2.81M |
| Jeffrey Emery | President - Global Fire Safety | 53,537 | $1.50M |
| Kyle Sable | Chief Financial Officer | 49,540 | $1.39M |
| Noriko Yokozuka | General Counsel | 47,157 | $1.33M |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the PRM quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.