Who Holds Atara Biotherapeutics, Inc. (ATRA)? 35 Institutional Holders, Q2 2026
Managers with more than $100 million in US equities report their holdings on Form 13F within 45 days of each quarter end. Quarter ended 30 Jun 2026: 35 holders, $51 million in total.
Largest holders
The 35 largest by value. Change in shares against Q1 2026.
| Manager | Shares | Value | Change | |
|---|---|---|---|---|
| EcoR1 Capital, LLC | 1,552,000 | $18 million | +1458% | 13F |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 850,000 | $10 million | +21% | 13F |
| Point72 Asset Management, L.P. | 687,718 | $8 million | +254% | 13F |
| Redmile Group, LLC | 441,701 | $5 million | +0% | 13F |
| VANGUARD CAPITAL MANAGEMENT LLC | 247,047 | $3 million | +13% | 13F |
| MACKENZIE FINANCIAL CORP | 233,249 | $3 million | -26% | 13F |
| BlackRock, Inc. | 84,455 | $969,544 | +7% | 13F |
| GEODE CAPITAL MANAGEMENT, LLC | 75,128 | $862,924 | +14% | 13F |
| STALEY CAPITAL ADVISERS INC | 50,000 | $574,000 | +0% | 13F |
| VANGUARD FIDUCIARY TRUST CO | 43,036 | $494,053 | +28% | 13F |
| JANE STREET GROUP, LLC | 30,345 | $348,360 | -10% | 13F |
| STATE STREET CORP | 26,453 | $303,680 | +0% | 13F |
| NORTHERN TRUST CORP | 16,591 | $190,465 | +34% | 13F |
| FMR LLC | 16,238 | $186,412 | +0% | 13F |
| XTX Topco Ltd | 15,303 | $175,678 | New | 13F |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 14,000 | $160,720 | -57% | 13F |
| MILLENNIUM MANAGEMENT LLC | 12,680 | $145,566 | -73% | 13F |
| CITADEL ADVISORS LLC | 10,159 | $116,625 | New | 13F |
| MORGAN STANLEY | 9,178 | $105,368 | +0% | 13F |
| ROYAL BANK OF CANADA | 4,743 | $55,000 | +10% | 13F |
| UBS Group AG | 3,979 | $45,679 | -92% | 13F |
| Vanguard Global Advisers, LLC | 1,456 | $16,715 | +0% | 13F |
| SBI Securities Co., Ltd. | 1,404 | $16,118 | -11% | 13F |
| JONES FINANCIAL COMPANIES LLLP | 803 | $8,440 | +14% | 13F |
| Caitong International Asset Management Co., Ltd | 311 | $3,570 | New | 13F |
| BARCLAYS PLC | 304 | $3,490 | New | 13F |
| Banque Transatlantique SA | 176 | $3,096 | +0% | 13F |
| WELLS FARGO & COMPANY/MN | 251 | $2,881 | +0% | 13F |
| JPMORGAN CHASE & CO | 216 | $2,413 | +0% | 13F |
| CITIGROUP INC | 97 | $1,114 | +9600% | 13F |
| BNP PARIBAS FINANCIAL MARKETS | 46 | $528 | -21% | 13F |
| ACADIAN ASSET MANAGEMENT LLC | 38,845 | $444 | -70% | 13F |
| KERR FINANCIAL PLANNING Corp | 24 | $276 | +0% | 13F |
| OSAIC HOLDINGS, INC. | 10 | $114 | +0% | 13F |
| Rockefeller Capital Management L.P. | 8 | $92 | +0% | 13F |
Questions and answers
- How many institutions hold Atara Biotherapeutics, Inc.?
- 35 managers reported Atara Biotherapeutics, Inc. on Form 13F for the quarter ended 30 June 2026, against 32 the quarter before.
- Who is the largest institutional holder of Atara Biotherapeutics, Inc.?
- EcoR1 Capital, LLC, with 1,552,000 shares worth $18 million on its 13F for Q2 2026.
- How many institutions bought or sold out of Atara Biotherapeutics, Inc. in Q2 2026?
- 4 managers reported a new position and 1 reported none after holding it the quarter before.
Source: SEC EDGAR, Form 13F (public domain). Counts and values as filed. Cite this page: Tamarly Intelligence, "Who holds Atara Biotherapeutics, Inc., Q2 2026", https://app.tamarly.ai/holders/atara-biotherapeutics, built from SEC EDGAR.
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