WallStreetZenWallStreetZen

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 CEO2025-05-163,276$6.76
$22.16kSell
Yanina GranthuertaChief Accounting Officer2025-05-162,218$6.76
$15.00kSell
Adiumentum Capital Fund I LPDirector2025-05-1675,572$6.61
$499.53kBuy
Jill HenrichEVP Chief Regulatory Officer2025-03-031,059$7.00
$7.41kSell
Eric J. HyllengrenEVP CFO and COO2025-03-031,211$7.00
$8.47kSell
Anhco NguyenPresident and CEO2025-03-033,331$7.00
$23.31kSell
Anhco NguyenPresident and CEO2024-11-181,664$11.20
$18.63kSell
Eric J. HyllengrenEVP CFO and COO2024-11-181,364$11.20
$15.27kSell
Jill HenrichEVP Chief Regulatory Officer2024-11-181,000$11.20
$11.20kSell
Anhco NguyenEVP Chief Sci. Tech Officer2024-08-16297$6.63
$1.97kSell

1 of 3

ATRA insiders have bought more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when ATRA insiders and whales buy or sell their stock.

ATRA Shareholders

What type of owners hold Atara Biotherapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Domain Partners VIII LP35.92%2,141,542$17.05MInsider
Panacea Innovation Ltd22.32%1,330,665$10.59MInsider
Adiumentum Capital Fund I LP20.29%1,209,395$9.63MInsider
Joel S. Marcus15.09%899,855$7.16MInsider
Isaac E. Ciechanover10.45%622,930$4.96MInsider
Ecor1 Capital LLC9.61%573,183$4.56MInstitution
Eric Dobmeier9.45%563,325$4.48MInsider
Redmile Group LLC7.41%441,701$3.52MInsider
Redmile Group LLC7.41%441,701$3.52MInstitution
Jakob Dupont4.88%290,794$2.31MInsider

1 of 3

ATRA vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ATRA17.07%82.93%Net BuyingNet Buying
DTIL12.12%87.88%Net SellingNet Buying
RNXT27.55%11.41%Net BuyingNet Buying
VRCA31.87%53.14%Net Selling
ADVM33.55%66.45%Net BuyingNet Buying
View Top Biotech Stocks

Atara Biotherapeutics Stock Ownership FAQ

Who owns Atara Biotherapeutics?

Atara Biotherapeutics (NASDAQ: ATRA) is owned by 35.01% institutional shareholders, 170.05% Atara Biotherapeutics insiders, and 0.00% retail investors. Domain Partners VIII LP is the largest individual Atara Biotherapeutics shareholder, owning 2.14M shares representing 35.92% of the company. Domain Partners VIII LP's Atara Biotherapeutics shares are currently valued at $17.05M.

If you're new to stock investing, here's how to buy Atara Biotherapeutics stock.
©2025 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.