Company · CIK 0001604464 · SIC 2836 — Biological Products, (No Diagnostic Substances) · Nasdaq
Atara Biotherapeutics, Inc. · ATRA
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 4, 2026 PForm 4 → | Sep 4, 6:20 pm EDT | Brian N CherryDirector | 104,166 | $9.60 | $999,994 | 166,486 | +167% |
Reported at this company — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.