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Atara Biotherapeutics Ownership | Who Owns Atara Biotherapeutics?

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Atara Biotherapeutics Ownership Summary

Atara Biotherapeutics is owned by 22.36% insiders, and 77.64% retail investors. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.05% of its assets in Atara Biotherapeutics shares.

ATRA Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockAtara Biotherapeutics-22.36%77.64%
SectorHealthcare Stocks 57.39%9.93%32.68%
IndustryBiotech Stocks 68.48%9.65%21.87%

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
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%
Dec 31, 202392-19.30%64,720,313-26.10%600.88%46-11.54%33-10.81%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard US Total Market Shares ETF120.26K2.05%-
Vanguard Total Stock Mkt Idx Inv120.26K2.05%-
Vanguard Institutional Extnd Mkt Idx Tr66.45K1.13%200.00
Fidelity Extended Market Index29.32K0.50%-187.00
Bridgeway Ultra-Small Company Market14.00K0.24%-
Fidelity Enhanced Small Cap ETF10.45K0.18%-
Fidelity Total Market Index10.59K0.18%-
NT R2000 Value Index Fund - NL255.47K0.18%-
Fidelity VIP Disciplined Small Cap Init10.16K0.17%526.00
NT R2000 Index Fund - NL9.83K0.17%-1.01K

Recent Insider Transactions

DateNameRoleActivityValue
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
Nov 18, 2024Henrich Jill EVP, Chief Regulatory OfficerSell$11.20K
Nov 18, 2024Hyllengren Eric J EVP, CFO and COOSell$15.27K

Insider Transactions Trends

DateBuySell
2025 Q1-3
2024 Q4-3
2024 Q3-12
2024 Q2-5
2024 Q1-6

ATRA Ownership FAQ

Who Owns Atara Biotherapeutics?

Atara Biotherapeutics shareholders are primarily institutional investors at 0.00%, followed by 22.36% insiders and 77.64% retail investors. The average institutional ownership in Atara Biotherapeutics's industry, Biotech Stocks , is 68.48%, which Atara Biotherapeutics falls below.

Does Blackrock own Atara Biotherapeutics?

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

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

Vanguard US Total Market Shares ETF 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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