Form 4 for ATRA Atara Biotherapeutics, Inc.
Accepted 2025-06-12 00:00:00 ET · period of report 2025-06-10 · accession 0000905148-25-002137 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-06-12 | 2025-06-10 | ATRA | HEIDEN WILLIAM K | Dir | A - Grant | $0.00 | +7,828 | 22.2K | +55% | $0 |
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 | 2025-06-10 | A | A | 7,828 | $0.00 | 22,188 | D | — | — | (F1) These restricted stock units shall vest on the earlier of June 10, 2026 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service. (F2) This amount reflects the 1:25 reverse stock split effected by the Issuer on June 20, 2024. |