AGIO Agios Pharmaceuticals Inc
Agios Pharmaceuticals Inc (AGIO) Institutional Ownership
What the institutions did with AGIO 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 |
|---|---|---|
| BlackRock, Inc. | 6.5M | 9.8% |
| FARALLON CAPITAL MANAGEMENT LLC | 5.9M | 9.0% |
| STATE STREET CORP | 3.5M | 5.3% |
| Lynx1 Capital Management LP | 3.4M | 5.2% |
| D. E. Shaw & Co., Inc. | 3.1M | 4.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.9M | 4.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.7M | 4.1% |
| ARMISTICE CAPITAL, LLC | 2.4M | 3.6% |
| Erste Asset Management GmbH | 2.2M | 3.3% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 2.1M | 3.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6M | 2.4% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.4M | 2.1% |
| ADAR1 Capital Management, LLC | 1.3M | 1.9% |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.3M | 1.9% |
| DIMENSIONAL FUND ADVISORS LP | 1.2M | 1.9% |
| GW&K Investment Management, LLC | 1.2M | 1.8% |
| GOLDMAN SACHS GROUP INC | 1.2M | 1.7% |
| UBS Group AG | 985.8K | 1.5% |
| MORGAN STANLEY | 963.3K | 1.5% |
| Nuveen, LLC | 873.6K | 1.3% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 810.5K | 1.2% |
| Foresite Capital Management VI LLC | 785.0K | 1.2% |
| CITADEL ADVISORS LLC | 732.7K | 1.1% |
| AQR CAPITAL MANAGEMENT LLC | 684.3K | 1.0% |
| Parkman Healthcare Partners LLC | 669.0K | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | Sold Out | 1.5M | 0 | -1.5M |
| MPM BIOIMPACT LLC | Sold Out | 1.3M | 0 | -1.3M |
| Frazier Life Sciences Management, L.P. | Sold Out | 1.3M | 0 | -1.3M |
| ADAR1 Capital Management, LLC | Increased | 140.7K | 1.3M | +1.1M |
| UBS Group AG | Increased | 132.5K | 985.8K | +853.3K |
| Lynx1 Capital Management LP | Increased | 2.6M | 3.4M | +797.4K |
| BlackRock, Inc. | Increased | 5.8M | 6.5M | +701.0K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 36.4K | 684.3K | +647.9K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 641.5K | 20.9K | -620.6K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | Increased | 1.5M | 2.1M | +616.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 250.5K | 810.5K | +560.1K |
| Erste Asset Management GmbH | Reduced | 2.7M | 2.2M | -550.0K |
| Defilade Capital Management, L.P. | New | 0 | 546.8K | +546.8K |
| Point72 Asset Management, L.P. | New | 0 | 506.3K | +506.3K |
| Artisan Partners Limited Partnership | Sold Out | 481.5K | 0 | -481.5K |
| Vestal Point Capital, LP | Sold Out | 450.0K | 0 | -450.0K |
| D. E. Shaw & Co., Inc. | Increased | 2.7M | 3.1M | +425.8K |
| Qube Research & Technologies Ltd | Increased | 187.7K | 597.6K | +410.0K |
| GOLDMAN SACHS GROUP INC | Increased | 805.8K | 1.2M | +345.2K |
| Schonfeld Strategic Advisors LLC | Increased | 200.1K | 520.1K | +320.0K |
| ARMISTICE CAPITAL, LLC | Reduced | 2.7M | 2.4M | -316.0K |
| MARSHALL WACE, LLP | Reduced | 448.1K | 138.8K | -309.3K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | 1.6M | 1.3M | -300.8K |
| Ensign Peak Advisors, Inc | Increased | 6.6K | 297.6K | +291.1K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 2.6M | 2.9M | +287.2K |
| ArrowMark Colorado Holdings LLC | Reduced | 403.6K | 117.7K | -285.9K |
| TWO SIGMA INVESTMENTS, LP | Increased | 251.6K | 536.4K | +284.7K |
| Rock Springs Capital Management LP | Reduced | 799.2K | 532.6K | -266.6K |
| Parkman Healthcare Partners LLC | Increased | 403.5K | 669.0K | +265.5K |
| Foresite Capital Management VI LLC | Increased | 525.0K | 785.0K | +260.0K |
| FARALLON CAPITAL MANAGEMENT LLC | Increased | 5.7M | 5.9M | +233.4K |
| JPMORGAN CHASE & CO | Increased | 151.6K | 359.8K | +208.2K |
| Eversept Partners, LP | Sold Out | 200.0K | 0 | -200.0K |
| JANE STREET GROUP, LLC | Reduced | 685.2K | 492.6K | -192.6K |
| Jump Financial, LLC | New | 0 | 182.8K | +182.8K |
| STATE STREET CORP | Increased | 3.4M | 3.5M | +168.8K |
| FIRST TRUST ADVISORS LP | New | 0 | 165.6K | +165.6K |
| Ishara Investments LP | New | 0 | 164.0K | +164.0K |
| Seven Fleet Capital Management LP | Reduced | 209.5K | 56.9K | -152.6K |
| Nuveen, LLC | Increased | 722.3K | 873.6K | +151.2K |
| BOOTHBAY FUND MANAGEMENT, LLC | New | 0 | 149.9K | +149.9K |
| Assenagon Asset Management S.A. | Increased | 67.2K | 207.9K | +140.8K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 238.5K | 373.9K | +135.5K |
| CITADEL ADVISORS LLC | Increased | 619.6K | 732.7K | +113.1K |
| Squarepoint Ops LLC | Increased | 208.9K | 321.1K | +112.3K |
| XTX Topco Ltd | Reduced | 160.9K | 50.4K | -110.5K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.5M | 1.6M | +106.4K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Sold Out | 103.2K | 0 | -103.2K |
| TANG CAPITAL MANAGEMENT LLC | Sold Out | 100.0K | 0 | -100.0K |
| KENNEDY CAPITAL MANAGEMENT LLC | Increased | 275.5K | 373.2K | +97.8K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.2M | 1.2M | +97.1K |
| Jain Global LLC | New | 0 | 91.6K | +91.6K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 450.1K | 359.6K | -90.5K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 298.8K | 219.0K | -79.8K |
| Woodline Partners LP | Sold Out | 74.4K | 0 | -74.4K |
| Edgestream Partners, L.P. | Reduced | 143.7K | 70.2K | -73.5K |
| Campbell & CO Investment Adviser LLC | New | 0 | 73.1K | +73.1K |
| CITIGROUP INC | Increased | 17.1K | 89.2K | +72.1K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 477.0K | 538.1K | +61.1K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 327.5K | 269.4K | -58.1K |
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.