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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
Anhco NguyenPresident and CEO2025-08-181,620$11.62
$18.82kSell
Anhco NguyenPresident and CEO2025-08-1857$11.61
$661.94Sell
Yanina GranthuertaChief Accounting Officer2025-08-1855$11.61
$638.50Sell
Yanina GranthuertaChief Accounting Officer2025-08-1886$11.61
$998.72Sell
Yanina GranthuertaChief Accounting Officer2025-08-181,668$11.61
$19.37kSell
Anhco NguyenPresident and CEO2025-08-181,281$11.62
$14.88kSell
Panacea Innovation Ltd10% Owner2025-08-1555,000$12.19
$670.45kBuy
Panacea Innovation Ltd10% Owner2025-07-1719,335$9.64
$186.37kBuy
Adiumentum Capital Fund I LPDirector2025-05-1675,572$6.61
$499.53kBuy
Yanina GranthuertaChief Accounting Officer2025-05-162,218$6.76
$15.00kSell

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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 Ltd38.95%2,735,665$40.62MInsider
Domain Partners VIII LP30.49%2,141,542$31.80MInsider
Adiumentum Capital Fund I LP17.22%1,209,395$17.96MInsider
Joel S. Marcus12.81%899,855$13.36MInsider
Isaac E. Ciechanover8.87%622,930$9.25MInsider
Ecor1 Capital LLC8.16%573,183$8.51MInstitution
Eric Dobmeier8.02%563,325$8.37MInsider
Redmile Group LLC6.29%441,701$6.56MInstitution
Redmile Group LLC6.29%441,701$6.56MInsider
Jakob Dupont4.14%290,794$4.32MInsider

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ATRA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ATRA13.52%86.48%Net BuyingNet Buying
CNTX76.50%1.46%Net Buying
ORMP17.68%51.57%
OVID50.58%24.06%Net Selling
SLGL23.64%0.00%
View Top Biotech Stocks

Atara Biotherapeutics Stock Ownership FAQ

Who owns Atara Biotherapeutics?

Atara Biotherapeutics (NASDAQ: ATRA) is owned by 25.68% institutional shareholders, 164.28% Atara Biotherapeutics insiders, and 0.00% retail investors. Panacea Innovation Ltd is the largest individual Atara Biotherapeutics shareholder, owning 2.74M shares representing 38.95% of the company. Panacea Innovation Ltd's Atara Biotherapeutics shares are currently valued at $37.89M.

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