Thorndike William N Jr, a director at Perimeter Solutions, Inc. ($PRM), sold shares on the open market seven times in the last year, totaling about $15.4 million. His most recent sale occurred on March 11, 2026. These sales rank 816th among 11,678 individual insiders in our database, where the average is about $8.6 million across roughly 6.4 transactions per insider. He made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 9, 2026 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | S | Common Stock | 34957 | $23.85 | 8,735,656.0000 | 147,923,437 | 0.40% | 0.02% |
| March 11, 2026 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | S | Common Stock | 100000 | $23.18 | 8,535,656.0000 | 147,923,437 | 1.16% | 0.07% |
| March 10, 2026 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | S | Common Stock | 100000 | $23.63 | 8,635,656.0000 | 147,923,437 | 1.14% | 0.07% |
| March 9, 2026 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | S | Common Stock | 90043 | $23.18 | 8,770,613.0000 | 147,923,437 | 1.02% | 0.06% |
| March 5, 2026 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | S | Common Stock | 100000 | $24.06 | 8,960,656.0000 | 147,923,437 | 1.10% | 0.07% |
| March 6, 2026 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | S | Common Stock | 100000 | $23.63 | 8,860,656.0000 | 147,923,437 | 1.12% | 0.07% |
| March 4, 2026 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | S | Common Stock | 125000 | $24.26 | 9,060,656.0000 | 147,923,437 | 1.36% | 0.08% |
| March 3, 2026 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | A | Common Stock | 5582492 | $0.00 | 9,185,656.0000 | 147,923,437 | 154.93% | 3.77% |
| Dec. 9, 2025 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | G | Common Stock | 673685 | $0.00 | 3,603,164.0000 | 147,923,437 | 15.75% | 0.46% |
| June 20, 2025 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | J | Common Stock | 746767 | $0.00 | 4,276,849.0000 | 145,713,439 | 21.15% | 0.51% |
| Nov. 6, 2024 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | M | Warrants (right to buy) | 500000 | $0.00 | 0.0000 | 145,247,477 | 100.00% | 0.34% |
| Nov. 6, 2024 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | M | Ordinary Shares | 125000 | $12.00 | 3,530,082.0000 | 145,247,477 | 3.67% | 0.09% |
| May 2, 2024 | CNX Resources Corp | $CNX | Thorndike William N Jr | Not found | A | Stock Option (right to buy) | 11058 | $0.00 | 11,058.0000 | 154,382,880 | 9999.99% | 0.01% |
| May 2, 2024 | CNX Resources Corp | $CNX | Thorndike William N Jr | Not found | A | Common shares, $0.01 par value per share | 17242 | $0.00 | 457,288.0000 | 154,382,880 | 3.92% | 0.01% |
| March 14, 2024 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | J | Ordinary Shares | 667536 | $0.00 | 3,405,082.0000 | 166,452,022 | 24.38% | 0.40% |
| Feb. 17, 2023 | Perimeter Solutions, Inc. | $PRM | Thorndike William N Jr | Director | J | Ordinary Shares | 696446 | $0.00 | 2,737,546.0000 | 175,079,941 | 34.12% | 0.40% |