Insider · CIK 0001742696
Utpal Koppikar
Files at: CCCC, ATRA. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Feb 6, 2019 AForm 4 → | Feb 8, 4:44 pm EST | Atara Biotherapeutics, Inc.ATRA | 17,063 | — | — | 64,063 | — | plan? |
| Jul 27, 2018 PForm 4 → | Sep 11, 6:49 pm EDT | Atara Biotherapeutics, Inc.ATRA | 2,000 | $36.80 | $73,600 | 47,000 | +4.44% | plan? late |
| Jun 7, 2018 AForm 4 → | Jun 7, 6:26 pm EDT | Atara Biotherapeutics, Inc.ATRA | 45,000 | — | — | 45,000 | — | plan? |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 24, 2026 AForm 4 → | Jun 26, 4:31 pm EDT | C4 Therapeutics, Inc.CCCC | 62,000 | — | — | 62,000 | — | |
| Feb 6, 2019 AForm 4 → | Feb 8, 4:44 pm EST | Atara Biotherapeutics, Inc.ATRA | 34,125 | — | — | 34,125 | — | |
| Jun 7, 2018 AForm 4 → | Jun 7, 6:26 pm EDT | Atara Biotherapeutics, Inc.ATRA | 75,000 | — | — | 75,000 | — |