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NASDAQ: ATRA
Atara Biotherapeutics Inc Stock Ownership - Who owns Atara Biotherapeutics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Atara Biotherapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Panacea Innovation Ltd10% Owner2025-11-281$14.03
$14.03Sell
Yanina GranthuertaChief Accounting Officer2025-11-1785$13.19
$1.12kSell
Yanina GranthuertaChief Accounting Officer2025-11-1774$13.19
$976.13Sell
Anhco NguyenPresident and CEO2025-11-172,859$13.19
$37.70kSell
Anhco NguyenPresident and CEO2025-11-1756$13.19
$738.53Sell
Yanina GranthuertaChief Accounting Officer2025-11-171,645$13.19
$21.69kSell
Anhco NguyenPresident and CEO2025-08-181,281$11.62
$14.88kSell
Yanina GranthuertaChief Accounting Officer2025-08-1886$11.61
$998.72Sell
Yanina GranthuertaChief Accounting Officer2025-08-181,668$11.61
$19.37kSell
Anhco NguyenPresident and CEO2025-08-1857$11.61
$661.94Sell

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Net Insider Buy/Sell (L12M) Ownership

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ATRA Shareholders

What type of owners hold Atara Biotherapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Panacea Innovation Ltd37.94%2,735,665$48.61MInsider
Domain Partners VIII LP29.70%2,141,542$38.06MInsider
Adiumentum Capital Fund I LP16.77%1,209,395$21.49MInsider
Joel S. Marcus12.48%899,855$15.99MInsider
Isaac E. Ciechanover8.64%622,930$11.07MInsider
Ecor1 Capital LLC7.95%573,183$10.19MInstitution
Eric Dobmeier7.81%563,325$10.01MInsider
Redmile Group LLC6.13%441,701$7.85MInstitution
Redmile Group LLC6.13%441,701$7.85MInsider
Jakob Dupont4.03%290,794$5.17MInsider

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ATRA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ATRA14.04%85.96%Net BuyingNet Selling
CGTX24.09%29.34%Net SellingNet Selling
OVID50.85%25.88%Net Selling
FBIO14.16%48.50%Net Buying
UNCY29.25%21.29%
View Top Biotech Stocks

Atara Biotherapeutics Stock Ownership FAQ

Who owns Atara Biotherapeutics?

Atara Biotherapeutics (NASDAQ: ATRA) is owned by 26.12% institutional shareholders, 159.95% Atara Biotherapeutics insiders, and 0.00% retail investors. Panacea Innovation Ltd is the largest individual Atara Biotherapeutics shareholder, owning 2.74M shares representing 37.94% of the company. Panacea Innovation Ltd's Atara Biotherapeutics shares are currently valued at $48.61M.

If you're new to stock investing, here's how to buy Atara Biotherapeutics stock.
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