AGIOS PHARMACEUTICALS INC (AGIO) Institutional Ownership Changes & 13F Activity
AGIOS PHARMACEUTICALS INC (AGIO). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Farallon Capital Management Llc, Adar1 Capital Management, Llc, Aqr Capital Management Llc, Wellington Management Group Llp, and Nomura Asset Management International Inc..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Envestnet Asset Management Inc | Sell | -171 | -1.4% | 12,057 | $447.44K | Q2 2026 | Sep 23, 2026 |
| State Street Corp | Buy | +168,754 | +5.0% | 3,533,633 | $131.14M | Q2 2026 | Sep 22, 2026 |
| Manufacturers Life Insurance Company, The | Sell | -12,319 | -24.6% | 37,727 | $1.40M | Q2 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Sell | -40 | -64.5% | 22 | $817.00 | Q2 2026 | Sep 04, 2026 |
| Citadel Advisors Llc | Buy | +113,074 | +18.2% | 732,687 | $27.19M | Q2 2026 | Sep 02, 2026 |
| California State Teachers Retirement System | Sell | -1,768 | -2.6% | 66,796 | $2.48M | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Buy | +36,802 | +54.8% | 103,955 | $3.86M | Q2 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Buy | +21,295 | — | 21,295 | $790.26K | Q2 2026 | Aug 19, 2026 |
| Seven Fleet Capital Management Lp | Sell | -152,647 | -72.8% | 56,900 | $2.11M | Q2 2026 | Aug 17, 2026 |
| Capstone Investment Advisors, Llc | Buy | +9,196 | — | 9,196 | $341.26K | Q2 2026 | Aug 17, 2026 |
| Farallon Capital Management Llc | Buy | +5,917,400 | — | 5,917,400 | $219.59M | Q2 2026 | Aug 14, 2026 |
| Adar1 Capital Management, Llc | Buy | +1,147,381 | +815.6% | 1,288,053 | $47.80M | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Buy | +647,936 | +1779.8% | 684,340 | $25.40M | Q2 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Sell | -620,611 | -96.7% | 20,875 | $774.67K | Q2 2026 | Aug 14, 2026 |
| Nomura Asset Management International Inc. | Buy | +616,374 | +41.2% | 2,110,809 | $78.33M | Q2 2026 | Aug 14, 2026 |
| Defilade Capital Management, L.P. | Buy | +546,848 | — | 546,848 | $20.29M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Buy | +506,344 | — | 506,344 | $18.79M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +425,836 | +15.9% | 3,107,005 | $115.30M | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Buy | +409,971 | +218.5% | 597,638 | $22.18M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +345,156 | +42.8% | 1,150,932 | $42.71M | Q2 2026 | Aug 14, 2026 |
| Schonfeld Strategic Advisors Llc | Buy | +320,022 | +160.0% | 520,083 | $19.30M | Q2 2026 | Aug 14, 2026 |
| Armistice Capital, Llc | Sell | -316,000 | -11.6% | 2,400,000 | $89.06M | Q2 2026 | Aug 14, 2026 |
| Ensign Peak Advisors, Inc | Buy | +291,060 | +4430.1% | 297,630 | $11.05M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +284,744 | +113.2% | 536,380 | $19.91M | Q2 2026 | Aug 14, 2026 |
| Rock Springs Capital Management Lp | Sell | -266,600 | -33.4% | 532,563 | $19.76M | Q2 2026 | Aug 14, 2026 |
| Parkman Healthcare Partners Llc | Buy | +265,521 | +65.8% | 669,046 | $24.83M | Q2 2026 | Aug 14, 2026 |
| Foresite Capital Management Vi Llc | Buy | +260,000 | +49.5% | 785,000 | $29.13M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -192,642 | -28.1% | 492,598 | $18.28M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +168,153 | — | 168,153 | $6.24M | Q2 2026 | Aug 14, 2026 |
| Ishara Investments Lp | Buy | +164,000 | — | 164,000 | $6.09M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about AGIO activity
Which institutional owners are buying AGIO?
Institutional owners buying AGIO include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in AGIO activity?
"Buy" means an investor increased their reported position in AGIO compared to the prior reporting period. This reflects growing exposure to AGIOS PHARMACEUTICALS INC (AGIO) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in AGIO increasing?
Institutional interest in AGIO can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related AGIO Institutional Insights
- AGIO Overview
- AGIO 13F Institutional Holders
- AGIO Superinvestors
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- AGIO Insider Trading & SEC Form 4 Activity
- AGIO Articles
- Top Institutional Investor Stock Rankings