ERAS Erasca, Inc.
Erasca, Inc. (ERAS) Institutional Ownership
What the institutions did with ERAS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Frazier Life Sciences Management, L.P. | 25.0M | 8.9% |
| T. Rowe Price Investment Management, Inc. | 21.2M | 7.5% |
| BlackRock, Inc. | 21.2M | 7.5% |
| RTW INVESTMENTS, LP | 17.9M | 6.4% |
| Venrock Adviser, LLC | 17.9M | 6.4% |
| STATE STREET CORP | 12.2M | 4.3% |
| Logos Global Management LP | 12.2M | 4.3% |
| VANGUARD CAPITAL MANAGEMENT LLC | 11.4M | 4.1% |
| Siren, L.L.C. | 11.4M | 4.1% |
| Paradigm Biocapital Advisors LP | 9.6M | 3.4% |
| ARCH Venture Management, LLC | 7.1M | 2.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 6.5M | 2.3% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 6.3M | 2.2% |
| Cormorant Asset Management, LP | 6.0M | 2.1% |
| Affinity Asset Advisors, LLC | 5.3M | 1.9% |
| Vivo Capital, LLC | 4.1M | 1.5% |
| ALLIANCEBERNSTEIN L.P. | 4.1M | 1.5% |
| GOLDMAN SACHS GROUP INC | 3.8M | 1.4% |
| BANK OF AMERICA CORP /DE/ | 3.0M | 1.1% |
| FMR LLC | 2.9M | 1.0% |
| a16z Capital Management, L.L.C. | 2.9M | 1.0% |
| Woodline Partners LP | 2.8M | 1.0% |
| JENNISON ASSOCIATES LLC | 2.8M | 1.0% |
| Soleus Capital Management, L.P. | 2.7M | 1.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.4M | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Vivo Capital, LLC | Reduced | 12.2M | 4.1M | -8.0M |
| Balyasny Asset Management L.P. | Reduced | 5.1M | 658.2K | -4.5M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 1.8M | 6.3M | +4.5M |
| 5AM Venture Management, LLC | Sold Out | 3.5M | 0 | -3.5M |
| SUVRETTA CAPITAL MANAGEMENT, LLC | Sold Out | 3.4M | 0 | -3.4M |
| Commodore Capital LP | Sold Out | 3.2M | 0 | -3.2M |
| STATE STREET CORP | Increased | 9.3M | 12.2M | +2.9M |
| JENNISON ASSOCIATES LLC | New | 0 | 2.8M | +2.8M |
| Soleus Capital Management, L.P. | New | 0 | 2.7M | +2.7M |
| SAMLYN CAPITAL, LLC | New | 0 | 2.3M | +2.3M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Sold Out | 2.1M | 0 | -2.1M |
| RTW INVESTMENTS, LP | Increased | 16.2M | 17.9M | +1.8M |
| Assenagon Asset Management S.A. | New | 0 | 1.6M | +1.6M |
| Venrock Adviser, LLC | Increased | 16.4M | 17.9M | +1.5M |
| ALLIANCEBERNSTEIN L.P. | Increased | 2.6M | 4.1M | +1.5M |
| FMR LLC | Increased | 1.5M | 2.9M | +1.4M |
| Evergreen Quality Fund GP, Ltd. | New | 0 | 1.4M | +1.4M |
| Nuveen, LLC | Increased | 543.0K | 1.8M | +1.3M |
| STEMPOINT CAPITAL LP | Increased | 479.7K | 1.6M | +1.1M |
| FEDERATED HERMES, INC. | Increased | 1.0K | 1.1M | +1.1M |
| FRED ALGER MANAGEMENT, LLC | Increased | 236.8K | 1.3M | +1.1M |
| GOLDMAN SACHS GROUP INC | Reduced | 4.9M | 3.8M | -1.1M |
| Caption Management, LLC | New | 0 | 1.0M | +1.0M |
| BlackRock, Inc. | Increased | 20.2M | 21.2M | +1.0M |
| Logos Global Management LP | Increased | 11.2M | 12.2M | +1.0M |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 1.1M | 2.0M | +954.7K |
| Paradigm Biocapital Advisors LP | Reduced | 10.4M | 9.6M | -842.7K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | New | 0 | 719.7K | +719.7K |
| Capital World Investors | New | 0 | 704.6K | +704.6K |
| CITIGROUP INC | Increased | 49.1K | 713.5K | +664.4K |
| Holocene Advisors, LP | Reduced | 760.7K | 126.6K | -634.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.8M | 2.4M | +616.1K |
| SILVERARC CAPITAL MANAGEMENT, LLC | Reduced | 1.9M | 1.3M | -588.8K |
| EcoR1 Capital, LLC | Reduced | 900.0K | 330.0K | -570.0K |
| Point72 Asset Management, L.P. | Increased | 693.3K | 1.2M | +553.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 6.0M | 6.5M | +505.3K |
| ORBIMED ADVISORS LLC | New | 0 | 495.9K | +495.9K |
| Ensign Peak Advisors, Inc | Reduced | 500.7K | 8.0K | -492.8K |
| ExodusPoint Capital Management, LP | Reduced | 575.7K | 100.7K | -475.0K |
| JPMORGAN CHASE & CO | Reduced | 924.4K | 500.6K | -423.8K |
| CITADEL ADVISORS LLC | Reduced | 498.4K | 94.7K | -403.6K |
| PRUDENTIAL FINANCIAL INC | Reduced | 416.7K | 33.0K | -383.7K |
| MORGAN STANLEY | Reduced | 989.2K | 616.0K | -373.2K |
| AMERICAN CENTURY COMPANIES INC | Reduced | 381.0K | 25.1K | -355.8K |
| First Turn Management, LLC | Increased | 867.6K | 1.2M | +354.1K |
| Rhenman & Partners Asset Management AB | New | 0 | 349.0K | +349.0K |
| MILLENNIUM MANAGEMENT LLC | Increased | 576.0K | 909.8K | +333.8K |
| MARSHALL WACE, LLP | Increased | 426.5K | 757.0K | +330.5K |
| ROYAL BANK OF CANADA | Increased | 239 | 313.4K | +313.2K |
| Integral Health Asset Management, LLC | Increased | 700.0K | 1.0M | +300.0K |
| Frazier Life Sciences Management, L.P. | Increased | 24.7M | 25.0M | +300.0K |
| Rock Springs Capital Management LP | Increased | 1.1M | 1.4M | +298.7K |
| VICTORY CAPITAL MANAGEMENT INC | Increased | 1.7M | 1.9M | +282.0K |
| D. E. Shaw & Co., Inc. | Reduced | 1.2M | 949.6K | -269.9K |
| TD Asset Management Inc | Increased | 394.3K | 661.2K | +266.9K |
| NORTHERN TRUST CORP | Increased | 1.7M | 2.0M | +256.5K |
| UBS Group AG | Reduced | 1.8M | 1.6M | -251.9K |
| E Fund Management Co., Ltd. | Increased | 32.6K | 265.4K | +232.8K |
| Cinctive Capital Management LP | Increased | 171.9K | 391.6K | +219.7K |
| Trexquant Investment LP | Reduced | 301.1K | 88.0K | -213.0K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.