Sohn Catherine A. bought Altimmune Inc. ($ALT) shares on the open market twice in the last year, totaling about $7,900, with the latest purchase on January 5, 2026. These buys rank 4,432nd among 4,983 insiders, below the average of 1.5 million per person across 3.29 transactions. She also sold Maze Therapeutics Inc. ($MAZE) shares twice, for about 1.1 million, most recently on January 7, 2026. Her sales rank 4,601st out of 11,678 insiders, well under the average of 8.6 million across 6.37 transactions.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 7, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | M | Stock Option (Right to Buy) | 3281 | $0.00 | 5,805.0000 | 48,119,444 | 36.11% | 0.01% |
| Jan. 6, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | M | Common Stock | 2493 | $10.42 | 2,493.0000 | 48,119,444 | 9999.99% | 0.01% |
| Jan. 6, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | S | Common Stock | 2493 | $38.62 | 0.0000 | 48,119,444 | 100.00% | 0.01% |
| Jan. 7, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | M | Common Stock | 20744 | $10.42 | 20,744.0000 | 48,119,444 | 9999.99% | 0.04% |
| Jan. 7, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | M | Common Stock | 2895 | $10.42 | 23,639.0000 | 48,119,444 | 13.96% | 0.01% |
| Jan. 7, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | M | Common Stock | 3281 | $10.42 | 26,920.0000 | 48,119,444 | 13.88% | 0.01% |
| Jan. 7, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | S | Common Stock | 26920 | $39.11 | 0.0000 | 48,119,444 | 100.00% | 0.06% |
| Jan. 6, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | M | Stock Option (Right to Buy) | 2493 | $0.00 | 3,211.0000 | 48,119,444 | 43.71% | 0.01% |
| Jan. 7, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | M | Stock Option (Right to Buy) | 20744 | $0.00 | 0.0000 | 48,119,444 | 100.00% | 0.04% |
| Jan. 7, 2026 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | M | Stock Option (Right to Buy) | 2895 | $0.00 | 316.0000 | 48,119,444 | 90.16% | 0.01% |
| Jan. 5, 2026 | Altimmune, Inc. | $ALT | Sohn Catherine A. | Not found | P | Common Stock, par value $0.0001 | 500 | $4.24 | 1,500.0000 | 88,104,132 | 50.00% | 0.00% |
| Sept. 25, 2025 | Altimmune, Inc. | $ALT | Sohn Catherine A. | Director | A | Stock Options (option to buy) | 48800 | $0.00 | 48,800.0000 | 81,477,548 | 9999.99% | 0.06% |
| Sept. 22, 2025 | Maze Therapeutics, Inc. | $MAZE | Sohn Catherine A. | Not found | A | Stock Option (Right to Buy) | 18000 | $0.00 | 18,000.0000 | 0 | 9999.99% | 0.00% |
| March 17, 2025 | Altimmune, Inc. | $ALT | Sohn Catherine A. | Director | P | Common Stock, par value $0.0001 | 1000 | $5.78 | 1,000.0000 | 71,003,399 | 9999.99% | 0.00% |
| Feb. 6, 2025 | Altimmune, Inc. | $ALT | Sohn Catherine A. | Director | A | Stock Options (option to buy) | 18600 | $0.00 | 18,600.0000 | 71,003,399 | 9999.99% | 0.03% |
| Sept. 26, 2024 | Altimmune, Inc. | $ALT | Sohn Catherine A. | 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 | Sohn Catherine A. | Director | A | Stock Options (option to buy) | 26100 | $0.00 | 26,100.0000 | 50,691,558 | 9999.99% | 0.05% |
| Aug. 11, 2023 | Jazz Pharmaceuticals plc | $JAZZ | Sohn Catherine A. | Director | A | Ordinary Shares | 3075 | $0.00 | 16,109.0000 | 62,539,000 | 23.59% | 0.00% |
| Aug. 14, 2023 | Jazz Pharmaceuticals plc | $JAZZ | Sohn Catherine A. | Director | S | Ordinary Shares | 1241 | $138.16 | 14,868.0000 | 62,539,000 | 7.70% | 0.00% |
| March 23, 2023 | Altimmune, Inc. | $ALT | Sohn Catherine A. | Director | A | Stock Options (option to buy) | 47000 | $0.00 | 47,000.0000 | 46,926,349 | 9999.99% | 0.10% |