🕵️ Perimeter Solutions, Inc. ($PRM)
SEC insider & ownership activity, last 12 months · CIK 1880319 · every row links its SEC filing
Over the last 12 months insiders sold $247.7M with no open-market buying against it. Windacre Partnership LLC sold $195.6M (Jun). 5 planned sales are pending, the largest $4.7M (Kyle J Sable). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 7 sellers, $247.7M (31 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Windacre Partnership LLC | 0 | – | 7 | $195.6M | Jun 30, 2026 |
| William Thorndike | 0 | – | 7 | $15.4M | Mar 11, 2026 |
| Jeffrey Emery | 0 | – | 5 | $13.3M | May 13, 2026 |
| Kyle J Sable | 0 | – | 7 | $11.7M | May 13, 2026 |
| Khouri Haitham | 0 | – | 3 | $7.3M | May 22, 2026 |
| Noriko Yokozuka | 0 | – | 1 | $3.9M | Dec 12, 2025 |
| Vivek Raj | 0 | – | 1 | $561K | Sep 11, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| FMR LLC | 6.7% | 13G | Nov 5, 2025 | filing ↗ | |
| Abigail P. Johnson | 6.7% | 13G | Nov 5, 2025 | filing ↗ | |
| William N. Thorndike, JR. | 5.7% | 13D | Mar 3, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Vivek Raj | $2.8M | Jun 12, 2026 | filing ↗ |
| Vivek Raj | $1.5M | Jun 12, 2026 | filing ↗ |
| Haitham Khouri | $3.7M | May 22, 2026 | filing ↗ |
| Haitham Khouri | $2.9M | May 21, 2026 | filing ↗ |
| Haitham Khouri | $680K | May 20, 2026 | filing ↗ |
| Kyle J Sable | $1.6M | May 13, 2026 | filing ↗ |
| Jeffrey Emery | $1.8M | May 13, 2026 | filing ↗ |
| Kyle J Sable | $952K | May 12, 2026 | filing ↗ |
| Kyle J Sable | $673K | May 11, 2026 | filing ↗ |
| Jeffrey Emery | $3.3M | May 11, 2026 | filing ↗ |
| Kyle J Sable | $4.7M | May 8, 2026 | filing ↗ |
| Jeffrey Emery | $1.5M | May 8, 2026 | filing ↗ |
| Cromwell Harbor Supporting Foundation | $2.7M | Mar 12, 2026 | filing ↗ |
| William Thorndike | $12.5M | Mar 5, 2026 | filing ↗ |
| William Thorndike | $3.0M | Mar 4, 2026 | filing ↗ |
| Edward Goldberg | $7.0M | Feb 27, 2026 | filing ↗ |
| Noriko Yokozuka | $3.9M | Dec 12, 2025 | filing ↗ |
| Kyle J Sable | $2.8M | Dec 12, 2025 | filing ↗ |
| Edward Goldberg | $10.8M | Nov 3, 2025 | filing ↗ |
| Edward Goldberg | $17.4M | Oct 31, 2025 | filing ↗ |
| Vivek Raj | $550K | Sep 11, 2025 | filing ↗ |
| Edward Goldberg | $5.7M | Sep 8, 2025 | filing ↗ |
| Edward Goldberg | $11.1M | Sep 5, 2025 | filing ↗ |
| Kyle J Sable | $882K | Sep 5, 2025 | filing ↗ |
| Jeffrey Emery | $6.7M | Sep 4, 2025 | filing ↗ |
| Edward Goldberg | $5.6M | Sep 4, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | May 28, 2026 | filing ↗ |
| Earnings (2.02) | May 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 6, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 22, 2026 | filing ↗ |
| Other events (8.01) | Jan 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 22, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 2, 2026 | filing ↗ |
| New financial obligation (2.03) | Jan 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 2, 2026 | filing ↗ |
| Material agreement (1.01) | Dec 19, 2025 | filing ↗ |
| Other events (8.01) | Dec 19, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 19, 2025 | filing ↗ |
| Other events (8.01) | Dec 15, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 15, 2025 | filing ↗ |
| Material agreement (1.01) | Dec 9, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 9, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 9, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 5, 2025 | filing ↗ |
| Earnings (2.02) | Oct 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 30, 2025 | filing ↗ |
| Earnings (2.02) | Aug 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2025 | filing ↗ |