John Gill made one open market purchase of Altimmune Inc. ($ALT) shares worth $51,250 in the last year, with the most recent on December 23, 2025. This ranks him 2,931st among nearly 5,000 insiders by purchase amount, below the average of $1.46 million across about 3.3 transactions per insider. He reported no open market sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 23, 2025 | Altimmune, Inc. | $ALT | GILL JOHN | Not found | P | Common Stock, par value $0.0001 | 12500 | $4.10 | 12,500.0000 | 89,418,028 | 9999.99% | 0.01% |
| Jan. 6, 2022 | Altimmune, Inc. | $ALT | GILL JOHN | Director | G | Common Stock, par value $0.0001 | 2714 | $0.00 | 0.0000 | 41,283,498 | 100.00% | 0.01% |
| Sept. 25, 2025 | Altimmune, Inc. | $ALT | GILL JOHN | Director | A | Stock Options (option to buy) | 48800 | $0.00 | 48,800.0000 | 81,477,548 | 9999.99% | 0.06% |
| Sept. 26, 2024 | Altimmune, Inc. | $ALT | GILL JOHN | Director | A | Stock Options (option to buy) | 34900 | $0.00 | 34,900.0000 | 70,924,371 | 9999.99% | 0.05% |
| Sept. 28, 2023 | Altimmune, Inc. | $ALT | GILL JOHN | Director | A | Stock Options (option to buy) | 26100 | $0.00 | 26,100.0000 | 50,691,558 | 9999.99% | 0.05% |
| Aug. 12, 2022 | Altimmune, Inc. | $ALT | GILL JOHN | Director | S | Common Stock, par value $0.0001 | 2714 | $15.00 | 2,771.0000 | 47,502,599 | 49.48% | 0.01% |