ATRA Insider Activity
View recent SEC Form 4 insider transactions for ATRA, including purchases, sales, option exercises, and other insider filings.
| Date | Insider | Type | Quantity | Price | Total Value | Shares Owned |
|---|---|---|---|---|---|---|
| Sep 04, 2026 | Cherry Brian N | Purchase | 104,166 | $9.60 | $999,993.60 | 166,486 |
| Aug 17, 2026 | Nguyen AnhCo | Sale | 5,062 | $8.08 | $40,882.74 | 132,775 |
| Jul 22, 2026 | Redmile Group, LLC | Exercise | 195,211 | $0.00 | $0.00 | 636,912 |
| Jul 22, 2026 | Redmile Group, LLC | Tax Withheld | 60 | $0.00 | $0.00 | 636,852 |
| Jun 11, 2026 | Cherry Brian N | Grant | 24,000 | $0.00 | $0.00 | 62,320 |
| Jun 09, 2026 | Ciongoli Gregory Austin | Grant | 12,000 | $0.00 | $0.00 | 12,000 |
| Jun 09, 2026 | Fust Matthew K | Grant | 12,000 | $0.00 | $0.00 | 30,188 |
| Jun 09, 2026 | HEIDEN WILLIAM K | Grant | 12,000 | $0.00 | $0.00 | 34,188 |
| May 18, 2026 | Grant-Huerta Yanina | Sale | 2,414 | $9.13 | $22,036.44 | 49,636 |
| May 18, 2026 | Nguyen AnhCo | Sale | 5,241 | $9.13 | $47,844.56 | 137,837 |
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