Form 4 for ATRA Atara Biotherapeutics, Inc.
Accepted 2025-05-20 00:00:00 ET · period of report 2025-05-16 · accession 0000905148-25-001865 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-05-20 | 2025-05-16 | ATRA | Nguyen AnhCo | Pres, CEO, Dir | S - Sale | $6.76 | -3,276 | 70.8K | -4% | -$22.1K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-05-16 | S | D | 3,276 | $6.76 | 70,847 | D | — | — | (F2) The sale price of the reporting person's shares represents the weighted average price of all shares sold by a broker on May 16, 2025 and May 19, 2025 on behalf of a group of employees of the Issuer to satisfy the payment of withholding tax liability of such employees. |