Cumbo Alexander, President and CEO of Solid Biosciences Inc. ($SLDB), sold shares on the open market four times in the last 365 days for a total of nearly $1 million. His most recent sale occurred on February 18, 2026. These transactions rank 4,973rd among 11,678 individual insiders in our database, where the average sale totals $8.6 million across about six transactions. Alexander 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 18, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | S | Common Stock | 16644 | $5.82 | 235,405.0000 | 94,417,746 | 6.60% | 0.02% |
| Feb. 13, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Common Stock | 30031 | $0.00 | 252,049.0000 | 94,417,746 | 13.53% | 0.03% |
| Feb. 13, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Restricted Stock Units | 30031 | $0.00 | 60,063.0000 | 94,417,746 | 33.33% | 0.03% |
| Feb. 4, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | S | Common Stock | 48913 | $6.44 | 222,018.0000 | 94,417,746 | 18.05% | 0.05% |
| Jan. 29, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Performance Stock Units | 169401 | $0.00 | 0.0000 | 94,417,746 | 100.00% | 0.18% |
| Jan. 29, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | A | Employee Stock Option (Right to Buy) | 509850 | $0.00 | 509,850.0000 | 94,417,746 | 9999.99% | 0.54% |
| Jan. 29, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | A | Restricted Stock Units | 254900 | $0.00 | 254,900.0000 | 94,417,746 | 9999.99% | 0.27% |
| Jan. 31, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Restricted Stock Units | 100400 | $0.00 | 301,200.0000 | 94,417,746 | 25.00% | 0.11% |
| Jan. 29, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Common Stock | 169401 | $0.00 | 250,789.0000 | 94,417,746 | 208.14% | 0.18% |
| Jan. 31, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Common Stock | 100400 | $0.00 | 351,189.0000 | 94,417,746 | 40.03% | 0.11% |
| Feb. 2, 2026 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | S | Common Stock | 80258 | $6.44 | 270,931.0000 | 94,417,746 | 22.85% | 0.09% |
| Dec. 3, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | S | Common Stock | 10808 | $5.11 | 81,388.0000 | 94,417,746 | 11.72% | 0.01% |
| Dec. 2, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Common Stock | 28612 | $0.00 | 92,196.0000 | 94,417,746 | 45.00% | 0.03% |
| Dec. 2, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Restricted Stock Units | 28612 | $0.00 | 28,613.0000 | 94,417,746 | 50.00% | 0.03% |
| Aug. 14, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | A | Restricted Stock Units | 168750 | $0.00 | 168,750.0000 | 40,816,694 | 9999.99% | 0.41% |
| Aug. 14, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | A | Employee Stock Option (Right to Buy) | 337500 | $0.00 | 337,500.0000 | 40,816,694 | 9999.99% | 0.83% |
| July 25, 2025 | Verve Therapeutics, Inc. | $VERV | Cumbo Alexander | Not found | D | Stock Option (right to buy) | 42200 | $0.00 | 0.0000 | 89,143,237 | 100.00% | 0.05% |
| July 25, 2025 | Verve Therapeutics, Inc. | $VERV | Cumbo Alexander | Not found | D | Stock Option (right to buy) | 136139 | $0.00 | 0.0000 | 89,143,237 | 100.00% | 0.15% |
| July 16, 2025 | Vor Biopharma Inc. | $VOR | Cumbo Alexander | Not found | A | Stock Option (right to buy) | 60000 | $0.00 | 60,000.0000 | 124,851,547 | 9999.99% | 0.05% |
| June 5, 2025 | Verve Therapeutics, Inc. | $VERV | Cumbo Alexander | Not found | A | Stock Option (right to buy) | 42200 | $0.00 | 42,200.0000 | 89,143,237 | 9999.99% | 0.05% |
| June 4, 2025 | Climb Bio, Inc. | $CLYM | Cumbo Alexander | Not found | A | Stock Option (Right to Buy) | 40000 | $0.00 | 40,000.0000 | 67,475,395 | 9999.99% | 0.06% |
| March 28, 2025 | Climb Bio, Inc. | $CLYM | Cumbo Alexander | Not found | A | Stock Option (Right to Buy) | 80000 | $0.00 | 80,000.0000 | 67,475,395 | 9999.99% | 0.12% |
| Feb. 13, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Restricted Stock Units | 30031 | $0.00 | 90,094.0000 | 40,816,694 | 25.00% | 0.07% |
| Feb. 13, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Common Stock | 30031 | $0.00 | 72,082.0000 | 40,816,694 | 71.42% | 0.07% |
| Feb. 14, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | S | Common Stock | 11365 | $3.96 | 60,717.0000 | 40,816,694 | 15.77% | 0.03% |
| Jan. 31, 2025 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | A | Restricted Stock Units | 401600 | $0.00 | 401,600.0000 | 40,816,694 | 9999.99% | 0.98% |
| Dec. 2, 2024 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Common Stock | 28612 | $0.00 | 49,598.0000 | 41,443,317 | 136.34% | 0.07% |
| Dec. 3, 2024 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | S | Common Stock | 11114 | $5.60 | 38,484.0000 | 41,443,317 | 22.41% | 0.03% |
| Dec. 2, 2024 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | M | Restricted Stock Units | 28612 | $0.00 | 57,225.0000 | 41,443,317 | 33.33% | 0.07% |
| June 26, 2024 | Verve Therapeutics, Inc. | $VERV | Cumbo Alexander | Not found | A | Stock Option (right to buy) | 136139 | $0.00 | 136,139.0000 | 0 | 9999.99% | 0.00% |
| Feb. 13, 2024 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | A | Restricted Stock Units | 120125 | $0.00 | 120,125.0000 | 19,884,007 | 9999.99% | 0.60% |
| Feb. 13, 2024 | Solid Biosciences Inc. | $SLDB | Cumbo Alexander | President and CEO | A | Employee Stock Option (Right to Buy) | 240250 | $0.00 | 240,250.0000 | 19,884,007 | 9999.99% | 1.21% |