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 2021
Institutional positions in Atara Biotherapeutics, Inc. as of Jun 30, 2021. 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
- 145
- −6 vs. Q1 2021
- Shares held
- 86.0M
- −654.8K (−0.8%) vs. Q1 2021
- Total value
- $1.34B
- +$93.0M (+7.5%) vs. Q1 2021
- New holders
- 18
- 48 more added
- Sold out
- 24
- 53 more reduced
Compare with Q1 2021: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 36 | $51.3M |
| Q1 2026 | 33 | $12.1M |
| Q4 2025 | 41 | $37.1M |
| Q3 2025 | 37 | $27.0M |
| Q2 2025 | 32 | $13.9M |
| Q1 2025 | 37 | $12.4M |
| Q4 2024 | 43 | $31.5M |
| Q3 2024 | 35 | $19.6M |
| Q2 2024 | 48 | $24.1M |
| Q1 2024 | 82 | $57.8M |
| Q4 2023 | 91 | $33.2M |
| Q3 2023 | 109 | $130.5M |
| Q2 2023 | 118 | $145.8M |
| Q1 2023 | 125 | $297.8M |
| Q4 2022 | 139 | $319.3M |
| Q3 2022 | 155 | $376.2M |
| Q2 2022 | 134 | $777.4M |
| Q1 2022 | 145 | $909.5M |
| Q4 2021 | 139 | $1.50B |
| Q3 2021 | 140 | $1.61B |
| Q2 2021 | 145 | $1.34B |
| Q1 2021 | 151 | $1.24B |
Institutions, Q2 2021
Shares, value and share of portfolio for each institution holding Atara Biotherapeutics, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Virginia Retirement Systems Et Al | 16,000 | $249.0K | 0.00% | +16,000 | New |
| Virtus ETF Advisers LLC | 15,258 | $237.0K | 0.10% | +2,476+19.4% | Added |
| Private Capital Advisors, Inc. | 15,000 | $233.0K | 0.04% | +15,000 | New |
| Jane Street Group, LLC | 14,780 | $229.0K | 0.00% | −7,115−32.5% | Reduced |
| Susquehanna Fundamental Investments, LLC | 14,087 | $219.0K | 0.00% | −30,597−68.5% | Reduced |
| Citadel Advisors LLC | 13,842 | $215.0K | 0.00% | −200,453−93.5% | Reduced |
| Royal Bank of Canada | 13,621 | $212.0K | 0.00% | −6,682−32.9% | Reduced |
| Virtu Financial LLC | 12,680 | $197.0K | 0.02% | +12,680 | New |
| ExodusPoint Capital Management, LP | 12,438 | $193.0K | 0.00% | +12,438 | New |
| Victory Capital Management Inc | 12,321 | $192.0K | 0.00% | −313−2.5% | Reduced |
| Algert Global LLC | 12,170 | $189.0K | 0.06% | +12,170 | New |
| Amalgamated Bank | 11,944 | $186.0K | 0.00% | +1,774+17.4% | Added |
| Amundi | 11,913 | $185.0K | 0.00% | +11,913 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 11,755 | $183.0K | 0.00% | +238+2.1% | Added |
| Princeton Capital Management LLC | 11,622 | $181.0K | 0.06% | +598+5.4% | Added |
| AXA S.A. | 10,635 | $165.0K | 0.00% | −38,600−78.4% | Reduced |
| Stifel Financial Corp | 10,552 | $164.0K | 0.00% | −254−2.4% | Reduced |
| Dark Forest Capital Management LP | 7,523 | $117.0K | 0.05% | +7,523 | New |
| NEXT Financial Group, Inc | 6,707 | $105.0K | 0.01% | +6,707 | New |
| Ameritas Investment Partners, Inc. | 6,167 | $96.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 5,220 | $81.0K | 0.05% | +3,229+162.2% | Added |
| Tower Research Capital LLC (TRC) | 5,073 | $79.0K | 0.00% | −2,797−35.5% | Reduced |
| Nisa Investment Advisors, LLC | 4,620 | $72.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 3,275 | $51.0K | 0.00% | −1,732−34.6% | Reduced |
| American Portfolios Advisors | 3,125 | $48.6K | 0.00% | +1,475+89.4% | Added |
| Signaturefd, LLC | 2,400 | $37.0K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 2,170 | $34.0K | 0.00% | 00.0% | Unchanged |
| Pacitti Group Inc. | 2,000 | $31.0K | 0.02% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 1,915 | $29.0K | 0.00% | +40+2.1% | Added |
| Quantbot Technologies LP | 1,745 | $27.0K | 0.00% | −21,755−92.6% | Reduced |
| Advisor Group Holdings, Inc. | 1,291 | $21.0K | 0.00% | −74−5.4% | Reduced |
| Macquarie Group Ltd | 777 | $12.0K | 0.00% | 00.0% | Unchanged |
| Smithfield Trust Co | 723 | $11.0K | 0.00% | 00.0% | Unchanged |
| Point72 Hong Kong Ltd | 625 | $10.0K | 0.00% | −1,095−63.7% | Reduced |
| Simplex Trading, LLC | 675 | $10.0K | 0.00% | +357+112.3% | Added |
| IFP Advisors, Inc | 600 | $9.00K | 0.00% | 00.0% | Unchanged |
| Hall Laurie J Trustee | 560 | $9.00K | 0.00% | 00.0% | Unchanged |
| Meeder Asset Management Inc | 309 | $5.00K | 0.00% | +309 | New |
| Captrust Financial Advisors | 256 | $4.00K | 0.00% | −10−3.8% | Reduced |
| Cutler Group LP | 300 | $4.00K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 209 | $3.00K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 208 | $3.00K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 146 | $2.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 140 | $2.00K | 0.00% | +27+23.9% | Added |
| Ellevest, Inc. | 117 | $2.00K | 0.00% | 00.0% | Unchanged |
| Consonance Capital Management LP | 0 | $0 | 0.00% | −1,669,293−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −142,706−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −118,848−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −76,274−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −54,477−100.0% | Sold out |
| Mackay Shields LLC | 0 | $0 | 0.00% | −45,492−100.0% | Sold out |
| Thrivent Financial for Lutherans | 0 | $0 | 0.00% | −44,632−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −36,162−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −35,164−100.0% | Sold out |
| AlphaCrest Capital Management LLC | 0 | $0 | 0.00% | −30,600−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −23,208−100.0% | Sold out |
| Marshall Wace North America L.P. | 0 | $0 | 0.00% | −15,809−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −15,105−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −13,001−100.0% | Sold out |
| DuPont Capital Management Corp | 0 | $0 | 0.00% | −12,428−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −12,309−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −10,584−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −4,608−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −2,556−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −1,056−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −1,094−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −129−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −59−100.0% | Sold out |
| Concord Wealth Partners | 0 | $0 | 0.00% | −60−100.0% | Sold out |