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, Q3 2021
Institutional positions in Atara Biotherapeutics, Inc. as of Sep 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
- 140
- −4 vs. Q2 2021
- Shares held
- 89.7M
- +3.75M (+4.4%) vs. Q2 2021
- Total value
- $1.61B
- +$269.1M (+20.1%) vs. Q2 2021
- New holders
- 15
- 53 more added
- Sold out
- 19
- 46 more reduced
1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2021
Shares, value and share of portfolio for each institution holding Atara Biotherapeutics, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Connor, Clark & Lunn Investment Management Ltd. | 15,964 | $286.0K | 0.00% | +15,964 | New |
| Virtus ETF Advisers LLC | 14,497 | $259.0K | 0.11% | −761−5.0% | Reduced |
| Group One Trading, L.P. | 13,838 | $248.0K | 0.01% | +13,838 | New |
| Royal Bank of Canada | 13,518 | $242.0K | 0.00% | −103−0.8% | Reduced |
| Americana Partners, LLC | 13,025 | $233.0K | 0.06% | +13,025 | New |
| Princeton Capital Management LLC | 12,091 | $216.0K | 0.07% | +469+4.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 11,768 | $211.0K | 0.00% | +13+0.1% | Added |
| Teacher Retirement System of Texas | 11,451 | $205.0K | 0.00% | +11,451 | New |
| Amalgamated Bank | 11,156 | $200.0K | 0.00% | −788−6.6% | Reduced |
| Victory Capital Management Inc | 11,061 | $198.0K | 0.00% | −1,260−10.2% | Reduced |
| Susquehanna Fundamental Investments, LLC | 10,907 | $195.0K | 0.00% | −3,180−22.6% | Reduced |
| Stifel Financial Corp | 10,906 | $195.0K | 0.00% | +354+3.4% | Added |
| LPL Financial LLC | 10,120 | $181.0K | 0.00% | +10,120 | New |
| American Portfolios Advisors | 9,100 | $162.9K | 0.01% | +5,975+191.2% | Added |
| Point72 Hong Kong Ltd | 7,845 | $140.0K | 0.01% | +7,220+1,155.2% | Added |
| Ameritas Investment Partners, Inc. | 6,167 | $110.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 4,620 | $83.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 3,275 | $59.0K | 0.00% | 00.0% | Unchanged |
| Macquarie Group Ltd | 3,311 | $59.0K | 0.00% | +2,534+326.1% | Added |
| State of Wyoming | 2,943 | $53.0K | 0.03% | −2,277−43.6% | Reduced |
| Signaturefd, LLC | 2,400 | $43.0K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 2,170 | $37.0K | 0.00% | 00.0% | Unchanged |
| Pacitti Group Inc. | 2,000 | $36.0K | 0.02% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 1,940 | $34.0K | 0.00% | +25+1.3% | Added |
| Smithfield Trust Co | 723 | $13.0K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 750 | $13.0K | 0.00% | +150+25.0% | Added |
| NEXT Financial Group, Inc | 685 | $12.0K | 0.00% | −6,022−89.8% | Reduced |
| Simplex Trading, LLC | 775 | $12.0K | 0.00% | +100+14.8% | Added |
| Advisor Group Holdings, Inc. | 642 | $11.0K | 0.00% | −649−50.3% | Reduced |
| Dark Forest Capital Management LP | 566 | $10.0K | 0.00% | −6,957−92.5% | Reduced |
| Hall Laurie J Trustee | 340 | $6.00K | 0.00% | −220−39.3% | Reduced |
| Captrust Financial Advisors | 266 | $5.00K | 0.00% | +10+3.9% | Added |
| Cutler Group LP | 300 | $5.00K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 290 | $5.00K | 0.00% | +144+98.6% | Added |
| US Bancorp | 209 | $4.00K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 208 | $4.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 150 | $3.00K | 0.00% | +10+7.1% | Added |
| Gerber Kawasaki Wealth & Investment Management | 210 | $3.00K | 0.00% | +210 | New |
| Ellevest, Inc. | 134 | $2.00K | 0.00% | +17+14.5% | Added |
| Berman Capital Advisors, LLC | 77 | $1.00K | 0.00% | +77 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −165,000−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −116,722−100.0% | Sold out |
| Alpha Paradigm Partners, LLC | 0 | $0 | 0.00% | −97,980−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −77,177−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −79,784−100.0% | Sold out |
| Copernicus Capital Management, LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −26,559−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −22,451−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −21,330−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −20,898−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −19,606−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −17,335−100.0% | Sold out |
| Private Capital Advisors, Inc. | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −12,680−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −12,438−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −11,913−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −10,635−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −1,745−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −309−100.0% | Sold out |
| QS Investors, LLC | – | – | – | – | Not filed |