Atara Biotherapeutics Insider Trades

ATRA

Track insider trading activity from Atara Biotherapeutics executives and directors. See which insiders are buying and selling ATRA stock.

Trades Last 12 Months

ATRA Price

All Insider Trades for Atara Biotherapeutics

Sort by: Latest Trade Biggest Holding
Insider
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price
Cherry Brian N Director
Holding Value $695k 62,320 shares
Last Trade
Jun 11, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$251k 24,000 shares
$10.46
$11.16
Fust Matthew K Director
Holding Value $337k 30,188 shares
Last Trade
Jun 09, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$117k 12,000 shares
$9.77
$11.16
Ciongoli Gregory Austin 10% owner, other, See Remarks
Holding Value $134k 12,000 shares
Last Trade
Jun 09, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$117k 12,000 shares
$9.77
$11.16
Heiden William K Director
Holding Value $382k 34,188 shares
Last Trade
Jun 09, 2026 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$117k 12,000 shares
$9.77
$11.16
Grant Huerta Yanina Chief Accounting Officer
Holding Value $554k 49,636 shares
Last Trade
May 18, 2026 Sale (Open Market)Shares sold on the open market or in a private sale.
$22k 2,414 shares
$9.13
$11.16
Nguyen Anh Co President And CEO
Holding Value $1.54M 137,837 shares
Last Trade
May 18, 2026 Sale (Open Market)Shares sold on the open market or in a private sale.
$47.9k 5,241 shares
$9.13
$11.16
Holding Value $17.3M 1,552,000 shares
Last Trade
May 07, 2026 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$4.74M 507,407 shares
$9.35
$11.16
Holding Value $11.3M 1,011,000 shares
Last Trade
May 07, 2026 Sale (Open Market)Shares sold on the open market or in a private sale.
$3.17M 313,446 shares
$10.10
$11.16
Nguyen Anhco President And CEO
Holding Value $790k 70,790 shares
Last Trade
Aug 18, 2025 Sale (Open Market)Shares sold on the open market or in a private sale.
$34.4k 2,958 shares
$11.62
$11.16
Grant Huerta Yanina Chief Accounting Officer
Holding Value $413k 37,012 shares
Last Trade
Aug 18, 2025 Sale (Open Market)Shares sold on the open market or in a private sale.
$21k 1,809 shares
$11.61
$11.16
Mallik Ameet Director
Holding Value $189k 16,928 shares
Last Trade
Jun 10, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$71.4k 7,828 shares
$9.12
$11.16
Heiden William K Director
Holding Value $248k 22,188 shares
Last Trade
Jun 10, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$71.4k 7,828 shares
$9.12
$11.16
Holding Value $194k 17,368 shares
Last Trade
Jun 10, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$71.4k 7,828 shares
$9.12
$11.16
Holding Value $368k 33,012 shares
Last Trade
Jun 10, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$71.4k 7,828 shares
$9.12
$11.16
Touchon Pascal Director
Holding Value $870k 77,955 shares
Last Trade
Jun 10, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$71.4k 7,828 shares
$9.12
$11.16
Holding Value $4.93M 441,701 shares
Last Trade
May 16, 2025 Sale
$61.4k 8,975 shares
$6.84
$11.16
Adiumentum Capital Fund I Lp 10% owner, other, See Remarks
Holding Value $13.5M 1,209,395 shares
Last Trade
May 16, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$500k 75,572 shares
$6.61
$11.16
Hyllengren Eric J other, Former Evp, CFO & COO
Holding Value $29.6k 2,656 shares
Last Trade
Mar 31, 2025 Sale (Sale to Issuer)Shares sold back to the company, such as a repurchase or tender.
$77k 12,961 shares
$5.94
$11.16
Henrich Jill Evp, Chief Regulatory Officer
Holding Value $208k 18,679 shares
Last Trade
Mar 03, 2025 Sale (Open Market)Shares sold on the open market or in a private sale.
$7.41k 1,059 shares
$7.00
$11.16
Murugan Amar Evp, Chief Legal Officer
Holding Value $303k 27,108 shares
Last Trade
Aug 16, 2024 Sale (Open Market)Shares sold on the open market or in a private sale.
$7.68k 1,158 shares
$6.63
$11.16

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