InsiderClue
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
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What the insiders did Net buying

Individual transactions

18
Insider
Date
Role
Action
Shares
Price
Amount
AnhCo Nguyen
17 Aug 2026
President and CEO
Sell
5,062
$8.08
$40.88K
Yanina Grant-Huerta
18 May 2026
Chief Accounting Officer
Sell
2,414
$9.13
$22.04K
AnhCo Nguyen
18 May 2026
President and CEO
Sell
5,241
$9.13
$47.84K
Panacea Innovation Ltd
7 May 2026
10% owner
Sell indirect
313,446
$10.10
$3.17M
AnhCo Nguyen
2 Mar 2026
President and CEO
Sell
1,442
$5.09
$7.34K
AnhCo Nguyen
2 Mar 2026
President and CEO
Sell
1,298
$5.09
$6.60K
AnhCo Nguyen
2 Mar 2026
President and CEO
Sell
58
$5.08
$294.64
AnhCo Nguyen
2 Mar 2026
President and CEO
Sell
198
$5.08
$1.01K
Yanina Grant-Huerta
2 Mar 2026
Chief Accounting Officer
Sell
100
$5.08
$508.30
Yanina Grant-Huerta
2 Mar 2026
Chief Accounting Officer
Sell
377
$5.08
$1.92K
Yanina Grant-Huerta
2 Mar 2026
Chief Accounting Officer
Sell
1,603
$5.08
$8.14K
Yanina Grant-Huerta
2 Mar 2026
Chief Accounting Officer
Sell
24
$5.08
$121.85
Panacea Innovation Ltd
12 Jan 2026
10% owner
Sell indirect
80,554
$6.07
$489.02K
Yanina Grant-Huerta
17 Nov 2025
Chief Accounting Officer
Sell
74
$13.19
$976.13
Yanina Grant-Huerta
17 Nov 2025
Chief Accounting Officer
Sell
85
$13.19
$1.12K
Yanina Grant-Huerta
17 Nov 2025
Chief Accounting Officer
Sell
1,645
$13.19
$21.69K
AnhCo Nguyen
17 Nov 2025
President and CEO
Sell
56
$13.19
$738.53
AnhCo Nguyen
17 Nov 2025
President and CEO
Sell
2,859
$13.19
$37.70K
Show all 22 transactions →

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