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Atara Biotherapeutics Ownership | Who Owns Atara Biotherapeutics?

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Atara Biotherapeutics Ownership Summary

Atara Biotherapeutics is owned by 19.38% institutional investors, 21.74% insiders, and 58.87% retail investors. Ifp advisors is the largest institutional shareholder, holding 0.00% of ATRA shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.05% of its assets in Atara Biotherapeutics shares.

ATRA Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockAtara Biotherapeutics19.38%21.74%58.87%
SectorHealthcare Stocks 279.19%10.62%-189.81%
IndustryBiotech Stocks 63.96%10.74%25.30%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Ifp advisors4.50K0.00%$1.76K
Geode capital management---
Marshall wace, llp---
Proshare advisors---
Legal & general group---
Renaissance---
Voya investment management---
Ecor1 capital---
Engineers gate manager lp---
Price t rowe associates inc /md/---

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Ifp advisors4.50K0.00%$1.76K
Geode capital management---
Marshall wace, llp---
Proshare advisors---
Legal & general group---
Renaissance---
Voya investment management---
Ecor1 capital---
Engineers gate manager lp---
Price t rowe associates inc /md/---

Top Buyers

HolderShares% AssetsChange
Ifp advisors4.50K0.00%-
Citigroup---2.00
Nelson, van denburg & campbell wealth management group---23.00
Eversource wealth advisors---35.00
Nisa investment advisors---50.00

Top Sellers

HolderShares% AssetsChange
Ecor1 capital---10.17M
Redmile group---9.26M
Blackrock---6.83M
Bank of america corp /de/---6.58M
Vanguard group---5.01M

Sold Out

HolderChange
Citigroup-2.00
Nelson, van denburg & campbell wealth management group-23.00
Eversource wealth advisors-35.00
Nisa investment advisors-50.00
Gamma investing-56.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 202536-14.29%2,086,297-10.96%194.03%13-43.48%1318.18%
Dec 31, 20242100.00%6380.00%-360000.00%1---
Sep 30, 20241-80.00%35-99.98%-2.78%--100.00%--100.00%
Jun 30, 20245-93.98%182,077-99.78%-0.00%1-97.62%2-92.86%
Mar 31, 202483-9.78%83,283,24828.68%782.13%42-8.70%28-15.15%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv120.26K2.05%-
Vanguard US Total Market Shares ETF120.26K2.05%-
Vanguard Institutional Extnd Mkt Idx Tr66.45K1.13%-
Fidelity Extended Market Index29.61K0.51%292.00
Fidelity VIP Disciplined Small Cap Init16.24K0.28%6.08K
Bridgeway Ultra-Small Company Market14.00K0.23%-
Fidelity Enhanced Small Cap ETF10.45K0.18%-
Fidelity Total Market Index10.59K0.18%-
NT R2000 Value Index Fund - NL255.47K0.18%-
NT R2000 Index Fund - NL9.83K0.17%-1.01K

Recent Insider Transactions

DateNameRoleActivityValue
May 16, 2025Grant-Huerta Yanina Chief Accounting OfficerSell$15.00K
May 16, 2025Nguyen AnhCo President and CEOSell$22.16K
Mar 03, 2025Nguyen AnhCo President and CEOSell$23.31K
Mar 03, 2025Hyllengren Eric J EVP, CFO and COOSell$8.47K
Mar 03, 2025Henrich Jill EVP, Chief Regulatory OfficerSell$7.41K

Insider Transactions Trends

DateBuySell
2025 Q2-2
2025 Q1-3
2024 Q4-3
2024 Q3-12
2024 Q2-5

ATRA Ownership FAQ

Who Owns Atara Biotherapeutics?

Atara Biotherapeutics shareholders are primarily institutional investors at 19.38%, followed by 21.74% insiders and 58.88% retail investors. The average institutional ownership in Atara Biotherapeutics's industry, Biotech Stocks , is 63.96%, which Atara Biotherapeutics falls below.

Who owns the most shares of Atara Biotherapeutics?

Atara Biotherapeutics’s largest shareholders are Ifp advisors (4.5K shares, 0.00%), Geode capital management (0 shares, 0%), and Marshall wace, llp (0 shares, 0%). Together, they hold 0.00% of Atara Biotherapeutics’s total shares outstanding.

Does Blackrock own Atara Biotherapeutics?

BlackRock is not among the top 10 institutional shareholders of Atara Biotherapeutics.

Who is Atara Biotherapeutics’s biggest shareholder by percentage of total assets invested?

Ifp advisors is Atara Biotherapeutics’s biggest shareholder by percentage of total assets invested, with 0.00% of its assets in 4.5K Atara Biotherapeutics shares, valued at 1.76K$.

Who is the top mutual fund holder of Atara Biotherapeutics shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Atara Biotherapeutics shares, with 2.05% of its total shares outstanding invested in 120.26K Atara Biotherapeutics shares.

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