DYN Dyne Therapeutics, Inc.
Dyne Therapeutics, Inc. (DYN) Institutional Ownership
What the institutions did with DYN 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 |
|---|---|---|
| T. Rowe Price Investment Management, Inc. | 30.9M | 16.2% |
| BlackRock, Inc. | 12.4M | 6.5% |
| Jupiter Topco LLC | 12.0M | 6.3% |
| FMR LLC | 11.2M | 5.9% |
| STATE STREET CORP | 7.5M | 3.9% |
| Orbis Allan Gray Ltd | 7.0M | 3.7% |
| Atlas Venture Life Science Advisors, LLC | 6.8M | 3.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.3M | 3.3% |
| TCG Crossover Management, LLC | 4.6M | 2.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.0M | 2.1% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 3.9M | 2.1% |
| FCPM III SERVICES B.V. | 3.8M | 2.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 3.7M | 2.0% |
| Vestal Point Capital, LP | 3.4M | 1.8% |
| ORBIMED ADVISORS LLC | 3.2M | 1.7% |
| Frazier Life Sciences Management, L.P. | 3.2M | 1.7% |
| JPMORGAN CHASE & CO | 3.2M | 1.7% |
| ARMISTICE CAPITAL, LLC | 3.1M | 1.6% |
| PERCEPTIVE ADVISORS LLC | 2.7M | 1.4% |
| Logos Global Management LP | 2.6M | 1.3% |
| BANK OF AMERICA CORP /DE/ | 2.2M | 1.2% |
| Venrock Adviser, LLC | 2.2M | 1.1% |
| GOLDMAN SACHS GROUP INC | 2.2M | 1.1% |
| Siren, L.L.C. | 2.1M | 1.1% |
| FRANKLIN RESOURCES INC | 2.0M | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Atlas Venture Life Science Advisors, LLC | Reduced | 9.1M | 6.8M | -2.3M |
| FMR LLC | Increased | 8.9M | 11.2M | +2.3M |
| PERCEPTIVE ADVISORS LLC | Reduced | 4.7M | 2.7M | -2.0M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 2.3M | 3.9M | +1.6M |
| MARSHALL WACE, LLP | Increased | 83.1K | 1.5M | +1.4M |
| Logos Global Management LP | Increased | 1.4M | 2.6M | +1.2M |
| STEMPOINT CAPITAL LP | Sold Out | 1.0M | 0 | -1.0M |
| DIMENSIONAL FUND ADVISORS LP | Increased | 951.6K | 1.9M | +994.9K |
| NOVO HOLDINGS A/S | New | 0 | 960.4K | +960.4K |
| CITADEL ADVISORS LLC | Increased | 201.1K | 1.1M | +942.8K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | 1.0M | 150.0K | -850.0K |
| STATE STREET CORP | Increased | 6.7M | 7.5M | +804.5K |
| FCPM III SERVICES B.V. | Reduced | 4.6M | 3.8M | -796.1K |
| BANK OF AMERICA CORP /DE/ | Increased | 1.4M | 2.2M | +790.1K |
| BRAIDWELL LP | Reduced | 1.7M | 921.6K | -760.4K |
| BlackRock, Inc. | Increased | 11.7M | 12.4M | +704.5K |
| Vestal Point Capital, LP | Reduced | 4.0M | 3.4M | -625.0K |
| Fiera Capital Corp | Reduced | 1.4M | 790.0K | -590.6K |
| Squarepoint Ops LLC | Reduced | 834.2K | 300.1K | -534.1K |
| MPM BIOIMPACT LLC | Increased | 1.4M | 1.9M | +513.9K |
| Deep Track Capital, LP | Reduced | 2.0M | 1.5M | -500.0K |
| GOLDMAN SACHS GROUP INC | Increased | 1.7M | 2.2M | +434.1K |
| Granahan Investment Management, LLC | New | 0 | 338.6K | +338.6K |
| Nuveen, LLC | Reduced | 718.3K | 386.8K | -331.5K |
| ORBIMED ADVISORS LLC | Increased | 2.9M | 3.2M | +317.8K |
| ArrowMark Colorado Holdings LLC | Reduced | 673.9K | 397.2K | -276.7K |
| MILLENNIUM MANAGEMENT LLC | Increased | 158.5K | 431.9K | +273.3K |
| Qube Research & Technologies Ltd | Sold Out | 253.2K | 0 | -253.2K |
| Alyeska Investment Group, L.P. | New | 0 | 245.3K | +245.3K |
| Orbis Allan Gray Ltd | Increased | 6.8M | 7.0M | +244.3K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 3.5M | 3.7M | +239.3K |
| MOORE CAPITAL MANAGEMENT, LP | Increased | 78.8K | 305.8K | +227.0K |
| Ensign Peak Advisors, Inc | Reduced | 496.6K | 289.7K | -206.9K |
| PDT Partners, LLC | Sold Out | 183.0K | 0 | -183.0K |
| MORGAN STANLEY | Reduced | 929.0K | 746.2K | -182.8K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 533.6K | 360.6K | -173.0K |
| University of Wisconsin Foundation | Reduced | 484.7K | 313.6K | -171.2K |
| SAMLYN CAPITAL, LLC | Reduced | 1.9M | 1.8M | -167.8K |
| ALPS ADVISORS INC | New | 0 | 167.1K | +167.1K |
| AXXCESS WEALTH MANAGEMENT, LLC | New | 0 | 155.3K | +155.3K |
| Burkehill Global Management, LP | Sold Out | 155.0K | 0 | -155.0K |
| CITIGROUP INC | Increased | 37.8K | 187.9K | +150.1K |
| Neo Ivy Capital Management | Reduced | 168.8K | 31.4K | -137.3K |
| AMERIPRISE FINANCIAL INC | Increased | 163.0K | 298.3K | +135.3K |
| Schonfeld Strategic Advisors LLC | New | 0 | 134.8K | +134.8K |
| T. Rowe Price Investment Management, Inc. | Increased | 30.8M | 30.9M | +126.5K |
| RAYMOND JAMES FINANCIAL INC | Increased | 451.6K | 576.4K | +124.7K |
| Jain Global LLC | New | 0 | 116.3K | +116.3K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 4.2M | 4.0M | -113.6K |
| Aberdeen Group plc | Increased | 1.4M | 1.5M | +109.1K |
| JPMORGAN CHASE & CO | Reduced | 3.3M | 3.2M | -101.8K |
| Siren, L.L.C. | Reduced | 2.2M | 2.1M | -100.0K |
| Tetragon Partners GP Ltd | Increased | 258.1K | 356.7K | +98.5K |
| Man Group plc | Sold Out | 95.7K | 0 | -95.7K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 6.4M | 6.3M | -94.1K |
| Y-Intercept (Hong Kong) Ltd | Increased | 65.2K | 156.2K | +91.0K |
| Saturn V Capital Management LP | Increased | 966.6K | 1.1M | +90.9K |
| ARMISTICE CAPITAL, LLC | Reduced | 3.2M | 3.1M | -87.9K |
| VOYA INVESTMENT MANAGEMENT LLC | Increased | 86.6K | 174.5K | +87.8K |
| FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. | New | 0 | 87.1K | +87.1K |
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.