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Atara Biotherapeutics, Inc.

ATRA
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001604464

In the last 90 days, Atara Biotherapeutics, Inc. insiders filed 1 open-market purchase and 1 sale; 36 institutions reported holding it in 13F filings for Q2 2026, worth $51.3M in total; no superinvestor holds it.

13F holders, Q2 2022

Institutional positions in Atara Biotherapeutics, Inc. as of Jun 30, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
134
−8 vs. Q1 2022
Shares held
99.8M
+1.98M (+2.0%) vs. Q1 2022
Total value
$777.4M
−$131.5M (−14.5%) vs. Q1 2022
New holders
19
48 more added
Sold out
27
42 more reduced

3 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2022: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ATRA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2022: 134 institutions
Q1 2021: 151 institutionsQ2 2021: 145 institutionsQ3 2021: 140 institutionsQ4 2021: 139 institutionsQ1 2022: 145 institutionsQ2 2022: 134 institutionsQ3 2022: 155 institutionsQ4 2022: 139 institutionsQ1 2023: 125 institutionsQ2 2023: 118 institutionsQ3 2023: 109 institutionsQ4 2023: 91 institutionsQ1 2024: 82 institutionsQ2 2024: 48 institutionsQ3 2024: 35 institutionsQ4 2024: 43 institutionsQ1 2025: 37 institutionsQ2 2025: 32 institutionsQ3 2025: 37 institutionsQ4 2025: 41 institutionsQ1 2026: 33 institutionsQ2 2026: 36 institutions
Value heldQ2 2022: $777.4M
Q1 2021: $1.24BQ2 2021: $1.34BQ3 2021: $1.61BQ4 2021: $1.50BQ1 2022: $909.5MQ2 2022: $777.4MQ3 2022: $376.2MQ4 2022: $319.3MQ1 2023: $297.8MQ2 2023: $145.8MQ3 2023: $130.5MQ4 2023: $33.2MQ1 2024: $57.8MQ2 2024: $24.1MQ3 2024: $19.6MQ4 2024: $31.5MQ1 2025: $12.4MQ2 2025: $13.9MQ3 2025: $27.0MQ4 2025: $37.1MQ1 2026: $12.1MQ2 2026: $51.3M
Institutions holding ATRA and their total value by quarter
QuarterHoldersValue
Q2 202636$51.3M
Q1 202633$12.1M
Q4 202541$37.1M
Q3 202537$27.0M
Q2 202532$13.9M
Q1 202537$12.4M
Q4 202443$31.5M
Q3 202435$19.6M
Q2 202448$24.1M
Q1 202482$57.8M
Q4 202391$33.2M
Q3 2023109$130.5M
Q2 2023118$145.8M
Q1 2023125$297.8M
Q4 2022139$319.3M
Q3 2022155$376.2M
Q2 2022134$777.4M
Q1 2022145$909.5M
Q4 2021139$1.50B
Q3 2021140$1.61B
Q2 2021145$1.34B
Q1 2021151$1.24B

Institutions, Q2 2022

Shares, value and share of portfolio for each institution holding Atara Biotherapeutics, Inc.; share changes are against Q1 2022.

Institutions holding ATRA in Q2 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Janus Henderson Group PLC14,537$113.0K0.00%+16+0.1%Added
Daiwa Securities Group Inc.14,233$111.0K0.00%+13,943+4,807.9%Added
Quantbot Technologies LP13,642$106.0K0.01%+13,642New
Tower Research Capital LLC (TRC)12,968$101.0K0.00%−7,057−35.2%Reduced
Caxton Associates LP12,445$97.0K0.01%+12,445New
Teacher Retirement System of Texas12,095$94.0K0.00%−3,352−21.7%Reduced
Amalgamated Bank11,923$93.0K0.00%+1,127+10.4%Added
Victory Capital Management Inc11,417$89.0K0.00%+411+3.7%Added
Princeton Capital Management LLC11,256$88.0K0.03%−400−3.4%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)10,560$82.0K0.00%−205−1.9%Reduced
Stifel Financial Corp10,533$82.0K0.00%+248+2.4%Added
Envestnet Asset Management Inc10,456$81.0K0.00%−1,589−13.2%Reduced
Running Point Capital Advisors, LLC10,000$78.0K0.05%00.0%Unchanged
ACT Capital Management, LLC9,200$72.0K0.10%00.0%Unchanged
American Portfolios Advisors8,850$68.9K0.00%00.0%Unchanged
Simplex Trading, LLC7,318$57.0K0.00%−18,474−71.6%Reduced
Ameritas Investment Partners, Inc.6,782$52.0K0.00%00.0%Unchanged
Metropolitan Life Insurance Co5,666$44.1K0.00%00.0%Unchanged
Great West Life Assurance Co3,275$26.0K0.00%00.0%Unchanged
Signaturefd, LLC3,129$24.0K0.00%+526+20.2%Added
High Net Worth Advisory Group LLC2,500$19.0K0.01%+1,500+150.0%Added
Advisor Group Holdings, Inc.868$7.00K0.00%+113+15.0%Added
Cutler Group LP900$7.00K0.00%+900New
TCI Wealth Advisors, Inc.846$7.00K0.00%+846New
Dark Forest Capital Management LP849$7.00K0.00%+849New
Smithfield Trust Co723$6.00K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC650$5.00K0.00%00.0%Unchanged
Macquarie Group Ltd639$5.00K0.00%00.0%Unchanged
State of Wyoming350$3.00K0.00%−3,383−90.6%Reduced
Hall Laurie J Trustee340$3.00K0.00%00.0%Unchanged
Captrust Financial Advisors205$2.00K0.00%−8−3.8%Reduced
Lindbrook Capital, LLC251$2.00K0.00%+251New
US Bancorp118$1.00K0.00%00.0%Unchanged
IFP Advisors, Inc1,500––−500−25.0%Reduced
Natixis0$00.00%−187,800−100.0%Sold out
Canada Pension Plan Investment Board0$00.00%−104,000−100.0%Sold out
Alps Advisors Inc0$00.00%−95,682−100.0%Sold out
Vident Investment Advisory, LLC0$00.00%−74,844−100.0%Sold out
PDT Partners, LLC0$00.00%−37,030−100.0%Sold out
AQR Capital Management LLC0$00.00%−33,402−100.0%Sold out
Walleye Capital LLC0$00.00%−31,847−100.0%Sold out
Trexquant Investment LP0$00.00%−31,540−100.0%Sold out
Jupiter Asset Management Ltd0$00.00%−30,950−100.0%Sold out
Nomura Holdings Inc0$00.00%−25,600−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−23,953−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−23,670−100.0%Sold out
XTX Topco Ltd0$00.00%−23,282−100.0%Sold out
AlphaCrest Capital Management LLC0$00.00%−21,300−100.0%Sold out
Engineers Gate Manager LP0$00.00%−16,400−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−14,466−100.0%Sold out
Monashee Investment Management LLC0$00.00%−10,000−100.0%Sold out
Point72 Hong Kong Ltd0$00.00%−7,234−100.0%Sold out
Group One Trading, L.P.0$00.00%−4,288−100.0%Sold out
Geneos Wealth Management Inc.0$00.00%−2,170−100.0%Sold out
Parallel Advisors, LLC0$00.00%−208−100.0%Sold out
CWM, LLC0$00.00%−111−100.0%Sold out
Ellevest, Inc.0$00.00%−134−100.0%Sold out
Northwestern Mutual Wealth Management Co0$00.00%−10−100.0%Sold out
Concord Wealth Partners0$00.00%−50−100.0%Sold out
TCWP LLC0$00.00%−42−100.0%Sold out
Covestor Ltd0$00.00%−21−100.0%Sold out
Parametric Portfolio Associates LLC––––Not filed
Susquehanna Fundamental Investments, LLC––––Not filed
Amalgamated Financial Corp.––––Not filed