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, Q1 2025
Institutional positions in Atara Biotherapeutics, Inc. as of Mar 31, 2025. 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
- 37
- −6 vs. Q4 2024
- Shares held
- 2.09M
- −281.6K (−11.9%) vs. Q4 2024
- Total value
- $12.4M
- −$19.1M (−60.7%) vs. Q4 2024
- New holders
- 5
- 8 more added
- Sold out
- 11
- 13 more reduced
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Atara Biotherapeutics, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| EcoR1 Capital, LLC | 573,183 | $3.40M | 0.20% | +41,049+7.7% | Added |
| Redmile Group, LLC | 441,701 | $2.62M | 0.25% | 00.0% | Unchanged |
| Vanguard Group Inc | 190,761 | $1.13M | 0.00% | +11,979+6.7% | Added |
| Bank of America Corp | 187,297 | $1.11M | 0.00% | −17,873−8.7% | Reduced |
| Acadian Asset Management LLC | 115,111 | $682.0K | 0.00% | −9,362−7.5% | Reduced |
| Vestal Point Capital, LP | 94,085 | $558.9K | 0.04% | −30,915−24.7% | Reduced |
| Staley Capital Advisers Inc | 80,000 | $475.2K | 0.02% | +30,000+60.0% | Added |
| Tang Capital Management LLC | 75,196 | $446.7K | 0.02% | 00.0% | Unchanged |
| BlackRock, Inc. | 60,798 | $361.1K | 0.00% | −48−0.1% | Reduced |
| Geode Capital Management, LLC | 58,679 | $348.6K | 0.00% | +3,935+7.2% | Added |
| Susquehanna International Group, LLP | 41,014 | $243.6K | 0.00% | +41,014 | New |
| State Street Corp | 25,253 | $150.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 24,334 | $144.5K | 0.00% | +23,500+2,817.7% | Added |
| Birchview Capital, LP | 22,000 | $130.7K | 0.11% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 19,385 | $115.0K | 0.01% | +19,385 | New |
| Renaissance Technologies LLC | 17,436 | $103.6K | 0.00% | −49,704−74.0% | Reduced |
| FMR LLC | 17,157 | $101.9K | 0.00% | −9,542−35.7% | Reduced |
| Bridgeway Capital Management, LLC | 14,000 | $83.2K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 11,828 | $70.3K | 0.00% | −16,523−58.3% | Reduced |
| Northern Trust Corp | 11,170 | $66.3K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1,404 | $8.34K | 0.00% | −12−0.8% | Reduced |
| Wells Fargo & Company | 951 | $5.65K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 850 | $5.00K | 0.00% | +767+924.1% | Added |
| Jones Financial Companies LLLP | 703 | $4.59K | 0.00% | +500+246.3% | Added |
| Boston Private Wealth LLC | 421 | $2.50K | 0.00% | +421 | New |
| Russell Investments Group, Ltd. | 368 | $2.19K | 0.00% | −351−48.8% | Reduced |
| Lazard Asset Management LLC | 368 | $2.00K | 0.00% | −76−17.1% | Reduced |
| JPMorgan Chase & Co | 216 | $1.28K | 0.00% | 00.0% | Unchanged |
| Raiffeisen Bank International AG | 200 | $1.19K | 0.00% | +200 | New |
| Tower Research Capital LLC (TRC) | 185 | $1.10K | 0.00% | +115+164.3% | Added |
| IFP Advisors, Inc | 180 | $1.07K | 0.00% | 00.0% | Unchanged |
| Banque Transatlantique SA | 176 | $1.04K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 175 | $1.04K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 148 | $879 | 0.00% | −246−62.4% | Reduced |
| BNP Paribas Arbitrage, SA | 50 | $297 | 0.00% | −11−18.0% | Reduced |
| Advisor Group Holdings, Inc. | 10 | $59 | 0.00% | −600−98.4% | Reduced |
| Barclays PLC | 1 | $6 | 0.00% | +1 | New |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −267,353−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −24,958−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −12,682−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −10,133−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −3,603−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −240−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −68−100.0% | Sold out |
| GAMMA Investing LLC | 0 | $0 | 0.00% | −56−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Alexis Investment Partners, LLC | 0 | $0 | 0.00% | −28−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −2−100.0% | Sold out |