SNDX Syndax Pharmaceuticals, Inc
Syndax Pharmaceuticals, Inc (SNDX) Institutional Ownership
What the institutions did with SNDX 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. | 9.0M | 8.3% |
| Kynam Capital Management, LP | 8.1M | 7.4% |
| GOLDMAN SACHS GROUP INC | 5.9M | 5.4% |
| STATE STREET CORP | 5.7M | 5.2% |
| BANK OF AMERICA CORP /DE/ | 4.0M | 3.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9M | 3.6% |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 3.8M | 3.5% |
| Eversept Partners, LP | 2.8M | 2.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6M | 2.4% |
| Hood River Capital Management LLC | 2.6M | 2.4% |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | 2.5M | 2.3% |
| FRANKLIN RESOURCES INC | 2.3M | 2.1% |
| MILLENNIUM MANAGEMENT LLC | 2.1M | 1.9% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9M | 1.8% |
| UBS Group AG | 1.9M | 1.8% |
| Elmind Capital, LP | 1.9M | 1.7% |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.8M | 1.7% |
| Candriam S.C.A. | 1.7M | 1.6% |
| Soleus Capital Management, L.P. | 1.6M | 1.5% |
| TWO SIGMA INVESTMENTS, LP | 1.6M | 1.5% |
| ORBIMED ADVISORS LLC | 1.5M | 1.4% |
| Nuveen, LLC | 1.4M | 1.3% |
| MPM BIOIMPACT LLC | 1.3M | 1.2% |
| Aisling Capital Management LP | 1.3M | 1.2% |
| Woodline Partners LP | 1.3M | 1.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| STEMPOINT CAPITAL LP | Sold Out | 2.4M | 0 | -2.4M |
| Point72 Asset Management, L.P. | Sold Out | 2.0M | 0 | -2.0M |
| MILLENNIUM MANAGEMENT LLC | Increased | 199.5K | 2.1M | +1.9M |
| STATE STREET CORP | Increased | 4.4M | 5.7M | +1.2M |
| LOOMIS SAYLES & CO L P | New | 0 | 923.6K | +923.6K |
| GOLDMAN SACHS GROUP INC | Increased | 5.0M | 5.9M | +864.5K |
| Candriam S.C.A. | Increased | 925.3K | 1.7M | +770.7K |
| BlackRock, Inc. | Increased | 8.3M | 9.0M | +765.6K |
| UBS Group AG | Increased | 1.2M | 1.9M | +740.1K |
| ORBIMED ADVISORS LLC | Increased | 962.3K | 1.5M | +579.7K |
| FIRST TRUST ADVISORS LP | New | 0 | 456.7K | +456.7K |
| Qube Research & Technologies Ltd | Increased | 36.0K | 477.2K | +441.1K |
| Prosight Management, LP | Increased | 770.0K | 1.2M | +430.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.2M | 2.6M | +427.1K |
| Trails Edge Capital Partners, LP | Increased | 701.8K | 1.1M | +408.2K |
| Jump Financial, LLC | New | 0 | 402.8K | +402.8K |
| Walleye Capital LLC | Reduced | 385.0K | 5.6K | -379.3K |
| CITADEL ADVISORS LLC | Reduced | 630.9K | 258.3K | -372.7K |
| JUPITER ASSET MANAGEMENT LTD | New | 0 | 366.6K | +366.6K |
| D. E. Shaw & Co., Inc. | Reduced | 1.6M | 1.2M | -361.9K |
| Integral Health Asset Management, LLC | Sold Out | 350.0K | 0 | -350.0K |
| Jones Hill Capital LP | New | 0 | 340.0K | +340.0K |
| JANE STREET GROUP, LLC | Sold Out | 335.5K | 0 | -335.5K |
| SILVERARC CAPITAL MANAGEMENT, LLC | Increased | 889.0K | 1.2M | +325.4K |
| Alyeska Investment Group, L.P. | New | 0 | 308.5K | +308.5K |
| MORGAN STANLEY | Reduced | 893.9K | 589.0K | -305.0K |
| Verition Fund Management LLC | New | 0 | 304.9K | +304.9K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 249.4K | 546.5K | +297.1K |
| SPHERA FUNDS MANAGEMENT LTD. | Increased | 724.6K | 1.0M | +290.0K |
| ENVESTNET ASSET MANAGEMENT INC | Increased | 41.9K | 327.6K | +285.7K |
| MACKENZIE FINANCIAL CORP | New | 0 | 280.1K | +280.1K |
| HRT FINANCIAL LP | Increased | 88.9K | 363.1K | +274.2K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 196.6K | 454.1K | +257.5K |
| CANADA PENSION PLAN INVESTMENT BOARD | Sold Out | 229.6K | 0 | -229.6K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 212.7K | +212.7K |
| Hood River Capital Management LLC | Increased | 2.4M | 2.6M | +210.0K |
| BANK OF AMERICA CORP /DE/ | Reduced | 4.2M | 4.0M | -204.7K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Sold Out | 199.0K | 0 | -199.0K |
| Pictet Asset Management Holding SA | Increased | 12.4K | 207.9K | +195.6K |
| Squarepoint Ops LLC | Increased | 181.6K | 370.3K | +188.8K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.7M | 1.9M | +184.7K |
| ALLIANCEBERNSTEIN L.P. | Reduced | 288.6K | 106.0K | -182.5K |
| Rhenman & Partners Asset Management AB | Increased | 379.3K | 560.3K | +181.0K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 498.2K | 321.6K | -176.6K |
| CITIGROUP INC | Increased | 20.3K | 195.7K | +175.4K |
| Catalio Capital Management, LP | Increased | 1.0M | 1.2M | +172.0K |
| FMR LLC | Reduced | 174.0K | 5.6K | -168.4K |
| Pale Fire Capital SE | Reduced | 284.5K | 125.6K | -158.9K |
| Granahan Investment Management, LLC | Increased | 306.3K | 447.0K | +140.7K |
| FRANKLIN RESOURCES INC | Increased | 2.2M | 2.3M | +136.4K |
| Nuveen, LLC | Reduced | 1.5M | 1.4M | -130.1K |
| Hennion & Walsh Asset Management, Inc. | Increased | 214.8K | 342.9K | +128.1K |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 980.3K | 853.3K | -127.0K |
| PFM Health Sciences, LP | Reduced | 245.0K | 118.4K | -126.6K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Reduced | 331.7K | 207.3K | -124.4K |
| Ensign Peak Advisors, Inc | Reduced | 991.0K | 867.8K | -123.1K |
| ALGERT GLOBAL LLC | Increased | 928.6K | 1.1M | +122.9K |
| DAFNA Capital Management LLC | Increased | 217.4K | 335.3K | +117.9K |
| Cinctive Capital Management LP | Sold Out | 117.3K | 0 | -117.3K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | New | 0 | 115.2K | +115.2K |
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.