ATRA
Atara Biotherapeutics, Inc.
4 disclosed insider filings · 3 distinct insiders · latest Sep 4, 2026
Total filings
4
3 insiders
Insider buys
1
$1000K
Insider sells
1
$41K
Grants & other
0
$0
All disclosed filings
Same-day tranches are grouped per insider - the Lots column shows how many individual executions a row covers; Price is the value-weighted average.
| Filed | Tx date | Insider | Type | Qty | Avg price | Value | Lots | Source |
|---|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | Sep 4, 2026 | Brian N Cherry INSIDER | BUY | 104,166 | $9.6 | $1000K | — | EDGAR |
| Aug 26, 2026 | Aug 17, 2026 | Anhco Nguyen INSIDER | SELL | 5,062 | $8.08 | $41K | — | EDGAR |
| Jul 24, 2026 | Jul 22, 2026 | Redmile Group LLC DIRECTOR | OTHER | 195,271 | — | — | 2 | EDGAR |