Stocks · Health care · Biological Products, (No Diagnostic Substances)

Atara Biotherapeutics, Inc.

ATRA Clue Score62
United States Fiscal year ends December CIK 0001604464 Results filed 12 Aug 2026

What the insiders did Net buying

Insider
Date
Role
Action
Shares
Price
Amount
Panacea Innovation Ltd
17 Mar 2026
10% owner
Exercised, kept indirect
259,163
$0.00
$25.92
Panacea Innovation Ltd
28 Nov 2025
10% owner
Exercised, kept indirect
48,737
$0.00
$4.87

What was left out

Form 4 filings counted 20
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 5
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 18
Transactions with no price 0
Shares from compensation/vesting 664,577
History held since 16 Oct 2014