Harris Matthew Scott has filed 41 insider transactions across 1 company since January 2023.
Most recent transaction: a grant/award of 2018 shares of Altimmune, Inc. ($ALT) on July 31, 2025.
Activity breakdown: 1 open-market purchase and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 31, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Common Stock, par value $0.0001 | 2018 | $3.14 | 83,874.0000 | 81,477,548 | 2.47% | 0.00% |
| March 7, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | G | Common Stock, par value $0.0001 | 67787 | $0.00 | 81,856.0000 | 71,003,399 | 45.30% | 0.10% |
| Jan. 31, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Common Stock, par value $0.0001 | 1905 | $5.18 | 72,732.0000 | 71,003,399 | 2.69% | 0.00% |
| Feb. 1, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 6166 | $0.00 | 78,898.0000 | 71,003,399 | 8.48% | 0.01% |
| Feb. 1, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 2109 | $6.64 | 76,789.0000 | 71,003,399 | 2.67% | 0.00% |
| Feb. 2, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 7775 | $0.00 | 84,564.0000 | 71,003,399 | 10.13% | 0.01% |
| Feb. 2, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 2708 | $6.64 | 81,856.0000 | 71,003,399 | 3.20% | 0.00% |
| Jan. 30, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 9275 | $0.00 | 74,000.0000 | 71,003,399 | 14.33% | 0.01% |
| Feb. 1, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 6166 | $0.00 | 0.0000 | 71,003,399 | 0.00% | 0.01% |
| Feb. 2, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 7775 | $0.00 | 7,775.0000 | 71,003,399 | 9999.99% | 0.01% |
| Jan. 30, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 9275 | $0.00 | 18,550.0000 | 71,003,399 | 100.00% | 0.01% |
| Jan. 30, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 3173 | $7.00 | 70,827.0000 | 71,003,399 | 4.29% | 0.00% |
| Jan. 25, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 14600 | $0.00 | 69,719.0000 | 71,003,399 | 26.49% | 0.02% |
| Jan. 25, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 4994 | $6.98 | 64,725.0000 | 71,003,399 | 7.16% | 0.01% |
| Jan. 25, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 14600 | $0.00 | 43,800.0000 | 71,003,399 | 50.00% | 0.02% |
| Jan. 27, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Stock Options (option to buy) | 183600 | $0.00 | 183,600.0000 | 71,003,399 | 9999.99% | 0.26% |
| Jan. 27, 2025 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Restricted Stock Units | 63400 | $0.00 | 63,400.0000 | 71,003,399 | 9999.99% | 0.09% |
| July 31, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Common Stock, par value $0.0001 | 1486 | $5.41 | 55,119.0000 | 70,924,371 | 2.77% | 0.00% |
| Feb. 2, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 2332 | $9.32 | 53,633.0000 | 53,246,937 | 4.17% | 0.00% |
| Feb. 1, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 6166 | $0.00 | 49,991.0000 | 53,246,937 | 14.07% | 0.01% |
| Feb. 1, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 1801 | $9.88 | 48,190.0000 | 53,246,937 | 3.60% | 0.00% |
| Feb. 2, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 7775 | $0.00 | 55,965.0000 | 53,246,937 | 16.13% | 0.01% |
| Feb. 1, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 6166 | $0.00 | 6,166.0000 | 53,246,937 | 50.00% | 0.01% |
| Feb. 2, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 7775 | $0.00 | 15,550.0000 | 53,246,937 | 33.33% | 0.01% |
| Jan. 30, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 2709 | $9.80 | 40,568.0000 | 53,246,937 | 6.26% | 0.01% |
| Jan. 30, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 9275 | $0.00 | 43,277.0000 | 53,246,937 | 27.28% | 0.02% |
| Jan. 30, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 9275 | $0.00 | 27,825.0000 | 53,246,937 | 25.00% | 0.02% |
| Jan. 31, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Common Stock, par value $0.0001 | 3257 | $2.69 | 43,825.0000 | 53,246,937 | 8.03% | 0.01% |
| Jan. 25, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Restricted Stock Units | 58400 | $0.00 | 58,400.0000 | 53,246,937 | 9999.99% | 0.11% |
| Jan. 25, 2024 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Stock Options (option to buy) | 163200 | $0.00 | 163,200.0000 | 53,246,937 | 9999.99% | 0.31% |
| July 31, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Common Stock, par value $0.0001 | 691 | $2.81 | 34,002.0000 | 50,691,558 | 2.07% | 0.00% |
| March 23, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | P | Common Stock, par value $0.0001 | 10000 | $4.22 | 33,311.0000 | 46,926,349 | 42.90% | 0.02% |
| Feb. 2, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 7775 | $0.00 | 25,675.0000 | 46,926,349 | 43.44% | 0.02% |
| Feb. 2, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 2364 | $15.04 | 23,311.0000 | 46,926,349 | 9.21% | 0.01% |
| Feb. 2, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 7775 | $0.00 | 23,325.0000 | 46,926,349 | 25.00% | 0.02% |
| Jan. 31, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Common Stock, par value $0.0001 | 1296 | $10.21 | 13,917.0000 | 46,926,349 | 10.27% | 0.00% |
| Feb. 1, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Common Stock, par value $0.0001 | 6166 | $0.00 | 20,083.0000 | 46,926,349 | 44.31% | 0.01% |
| Feb. 1, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | F | Common Stock, par value $0.0001 | 2183 | $13.78 | 17,900.0000 | 46,926,349 | 10.87% | 0.00% |
| Feb. 1, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | M | Restricted Stock Units | 6166 | $0.00 | 12,332.0000 | 46,926,349 | 33.33% | 0.01% |
| Jan. 30, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Stock Options (option to buy) | 105000 | $0.00 | 105,000.0000 | 46,926,349 | 9999.99% | 0.22% |
| Jan. 30, 2023 | Altimmune, Inc. | $ALT | Harris Matthew Scott | Chief Medical Officer | A | Restricted Stock Units | 37100 | $0.00 | 37,100.0000 | 46,926,349 | 9999.99% | 0.08% |