Cherry Brian N
Director
Buy
Calculated transaction value
$999.99K
104,166 shares @ $9.6
Traded
Sep 4, 2026
Filed
Sep 4, 2026
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Atara Biotherapeutics, Inc.
ATRA
Transactions reported in official disclosures
11 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Cherry Brian N Director | Sep 4, 2026 Same-day filing | Buy Sep 4, 2026 | $999.99K Filed shares x price | SEC Form 4 View filing | |
| Nguyen Anhco President And CEO | Aug 26, 2026 9-day lag | Sale Aug 17, 2026 | $40.88K Filed shares x price | SEC Form 4 View filing | |
| Redmile Group, Llc Director | Jul 24, 2026 2-day lag | Exercise Jul 22, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Redmile Group, Llc Director | Jul 24, 2026 2-day lag | Exercise Jul 22, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Redmile Group, Llc Director | Jul 24, 2026 2-day lag | Exercise Jul 22, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Redmile Group, Llc Director | Jul 24, 2026 2-day lag | Exercise Jul 22, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Redmile Group, Llc Director | Jul 24, 2026 2-day lag | Disposition Jul 22, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Cherry Brian N Director | Jun 15, 2026 4-day lag | Award Jun 11, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fust Matthew K Director | Jun 11, 2026 2-day lag | Award Jun 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Heiden William K Director | Jun 11, 2026 2-day lag | Award Jun 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Ciongoli Gregory Austin Director / Ten Percent Owner / ... | Jun 11, 2026 2-day lag | Award Jun 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing |
Nguyen Anhco
President And CEO
Sale
Calculated transaction value
$40.88K
5,062 shares @ $8.08
Traded
Aug 17, 2026
Filed
Aug 26, 2026
Redmile Group, Llc
Director
Exercise
Calculated transaction value
$0
38,735 shares @ $0
Traded
Jul 22, 2026
Filed
Jul 24, 2026
Redmile Group, Llc
Director
Exercise
Reported value range
Not reported
195,211 shares
Traded
Jul 22, 2026
Filed
Jul 24, 2026
Redmile Group, Llc
Director
Exercise
Calculated transaction value
$0
101,089 shares @ $0
Traded
Jul 22, 2026
Filed
Jul 24, 2026
Redmile Group, Llc
Director
Exercise
Calculated transaction value
$0
55,387 shares @ $0
Traded
Jul 22, 2026
Filed
Jul 24, 2026
Redmile Group, Llc
Director
Disposition
Reported value range
Not reported
60 shares
Traded
Jul 22, 2026
Filed
Jul 24, 2026
Cherry Brian N
Director
Award
Calculated transaction value
$0
24,000 shares @ $0
Traded
Jun 11, 2026
Filed
Jun 15, 2026
Fust Matthew K
Director
Award
Calculated transaction value
$0
12,000 shares @ $0
Traded
Jun 9, 2026
Filed
Jun 11, 2026
Heiden William K
Director
Award
Calculated transaction value
$0
12,000 shares @ $0
Traded
Jun 9, 2026
Filed
Jun 11, 2026
Ciongoli Gregory Austin
Director / Ten Percent Owner / Other
Award
Calculated transaction value
$0
12,000 shares @ $0
Traded
Jun 9, 2026
Filed
Jun 11, 2026