Reyno Leonard, Chief Medical Officer of C4 Therapeutics, Inc. ($CCCC), made one open market sale of company shares in the last year, totaling $22,200. His most recent sale occurred on January 16, 2026. These sales rank 10,980th among 11,678 individual insiders in our database, where the average sale amount is 8.6 million dollars across about 6.4 transactions per insider. Leonard had 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 14, 2026 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | F | Common Stock | 16579 | $1.89 | 379,803.0000 | 96,914,418 | 4.18% | 0.02% |
| Feb. 14, 2026 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | M | Common Stock | 30950 | $0.00 | 396,382.0000 | 96,914,418 | 8.47% | 0.03% |
| Feb. 13, 2026 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | A | Common Stock | 240000 | $0.00 | 396,382.0000 | 96,914,418 | 153.47% | 0.25% |
| Jan. 16, 2026 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | S | Common Stock | 10000 | $2.22 | 156,382.0000 | 96,914,418 | 6.01% | 0.01% |
| July 10, 2025 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | F | Common Stock | 7382 | $1.99 | 166,382.0000 | 70,989,661 | 4.25% | 0.01% |
| July 10, 2025 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | M | Common Stock | 15325 | $0.00 | 173,764.0000 | 70,989,661 | 9.67% | 0.02% |
| July 10, 2025 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | F | Common Stock | 7382 | $1.99 | 166,382.0000 | 70,989,661 | 4.25% | 0.01% |
| Feb. 14, 2025 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | A | Stock Option (Right to Buy) | 130600 | $0.00 | 130,600.0000 | 0 | 9999.99% | 0.00% |
| Feb. 14, 2025 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | F | Common Stock | 5145 | $3.18 | 173,764.0000 | 0 | 2.88% | 0.00% |
| Feb. 14, 2025 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | A | Common Stock | 87100 | $0.00 | 178,909.0000 | 0 | 94.87% | 0.00% |
| July 10, 2024 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | F | Common Stock | 6191 | $5.00 | 91,809.0000 | 0 | 6.32% | 0.00% |
| Feb. 14, 2024 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | A | Stock Option (Right to Buy) | 165300 | $0.00 | 165,300.0000 | 0 | 9999.99% | 0.00% |
| Feb. 14, 2024 | C4 Therapeutics, Inc. | $CCCC | REYNO LEONARD | Chief Medical Officer | A | Common Stock | 36700 | $0.00 | 98,000.0000 | 0 | 59.87% | 0.00% |