Dyne TherapeuticsDYN
13F holders, Q1 2026 (March 31)228holders −5
35new positions
43sold out
6famous investors
$18.11avg. 13F price*
At the end of Q1 2026, 228 institutions reported holding Dyne Therapeutics Inc. (DYN) in their 13F filings, down 5 from Q4 2025. 35 opened new positions and 43 sold out. The largest holders were T. Rowe Price Investment Management, Inc. ($558.1M), Janus Henderson Group PLC ($247.4M) and BlackRock, Inc. ($212.1M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Dyne Therapeutics Inc.
- CUSIP
- 26818M108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 35 | $36.8M |
| Exits | 43 | $105.2M |
All 13F filers, Q4 2025 → Q1 2026: 31,274,015 shares bought and 21,686,183 shares sold, net +9,587,832 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 228 holders
| T. Rowe Price Investment Management, Inc. | 0.38% | Add +75.5% | 30,785,801 | $558.1M |
| Janus Henderson Group PLC | 0.12% | Reduce -1.7% | 13,647,376 | $247.4M |
| BlackRock, Inc. | 0.00% | Add +4.5% | 11,699,870 | $212.1M |
| Atlas Venture Life Science Advisors, LLC | 20.95% | No change | 9,130,465 | $165.5M |
| FMR LLC | 0.01% | Add +35.6% | 8,908,980 | $161.5M |
| Orbis Allan Gray Ltd | 0.52% | Add +40.8% | 6,762,231 | $122.6M |
| State Street Corp. | 0.00% | Reduce -0.6% | 6,653,746 | $120.6M |
| Vanguard Capital Management LLC | 0.00% | — | 6,405,069 | $116.1M |
| Perceptive Advisors LLC | 1.68% | Add +34.2% | 4,668,839 | $84.6M |
| FCPM III Services B.V. | 11.66% | Reduce -15.0% | 4,644,386 | $84.2M |
| TCG Crossover Management, LLC | 2.39% | No change | 4,615,144 | $83.7M |
| Vanguard Portfolio Management LLC | 0.00% | — | 4,162,041 | $75.5M |
| Vestal Point Capital, LP | 2.03% | Add +3233.3% | 4,000,000 | $72.5M |
| Geode Capital Management, LLC | 0.00% | Add +7.4% | 3,504,114 | $63.5M |
| Armistice Capital, LLC | 1.90% | Reduce -2.3% | 3,175,110 | $57.6M |
| Frazier Life Sciences Management, L.P. | 1.47% | No change | 3,153,082 | $57.2M |
| JPMorgan Chase & Co. | 0.00% | Reduce -8.3% | 3,253,473 | $55.6M |
| Orbimed Advisors LLC | 1.20% | Add +32.5% | 2,917,884 | $52.9M |
| T. Rowe Price Associates Inc. | 0.00% | Add +0.2% | 2,328,373 | $42.2M |
| Siren, L.L.C. | 1.12% | Reduce -36.4% | 2,229,125 | $40.4M |
| Venrock Adviser, LLC | 1.47% | No change | 2,173,913 | $39.4M |
| Franklin Resources Inc. | 0.01% | Add +0.1% | 2,009,082 | $36.4M |
| Deep Track Capital, LP | 0.75% | Reduce -24.5% | 2,000,000 | $36.3M |
| Samlyn Capital, LLC | 0.60% | Add +28.8% | 1,922,543 | $34.9M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -24.5% | 1,723,116 | $31.2M |
| Braidwell LP | 1.16% | Add +13.8% | 1,681,998 | $30.5M |
| Palo Alto Investors LP | 4.58% | Add +12.3% | 1,652,972 | $30.0M |
| Sofinnova Investments, Inc. | 1.48% | Reduce -27.5% | 1,633,897 | $29.6M |
| Vivo Capital, LLC | 2.35% | Reduce -40.4% | 1,557,466 | $28.2M |
| Bank of America Corp. | 0.00% | Add +63.5% | 1,443,313 | $26.2M |
| Aberdeen Group plc | 0.04% | Add +29.1% | 1,430,384 | $25.9M |
| MPM Bioimpact LLC | 1.97% | Add +0.2% | 1,408,152 | $25.5M |
| Logos Global Management LP | 1.31% | Add +12.0% | 1,400,000 | $25.4M |
| Fiera Capital Corp | 0.09% | New | 1,380,620 | $25.0M |
| Polar Capital Holdings Plc | 0.11% | Add +7.1% | 1,359,169 | $24.6M |
| Northern Trust Corp. | 0.00% | Add +9.8% | 1,198,838 | $21.7M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.6% | 1,158,390 | $21.0M |
| Adage Capital Partners Gp, L.L.C. | 0.03% | Reduce -80.7% | 1,000,000 | $18.1M |
| Rock Springs Capital Management LP | 1.04% | Add +6.5% | 972,198 | $17.6M |
| Saturn V Capital Management LP | 3.17% | Reduce -46.0% | 966,609 | $17.5M |
| Dimensional Fund Advisors LP | 0.00% | Add +870.3% | 951,589 | $17.2M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 947,438 | $17.2M |
| Morgan Stanley | 0.00% | Reduce -23.4% | 929,003 | $16.8M |
| Squarepoint Ops LLC | 0.03% | Add +226.9% | 834,176 | $15.1M |
| Frontier Capital Management Co. LLC | 0.15% | Reduce -27.8% | 821,849 | $14.9M |
| Baker Bros. Advisors LP | 0.08% | No change | 813,449 | $14.7M |
| Nuveen, LLC | 0.00% | Add +15.6% | 718,333 | $13.0M |
| ArrowMark Colorado Holdings LLC | 0.32% | Reduce -3.8% | 673,949 | $12.2M |
| Artisan Partners Limited Partnership | 0.02% | Reduce -4.7% | 619,457 | $11.2M |
| Renaissance Technologies | 0.02% | Add +13.4% | 533,600 | $9.7M |
| TD Asset Management Inc | 0.01% | Add +26.1% | 529,312 | $9.6M |
| Stempoint Capital LP | 1.76% | Reduce -39.4% | 506,075 | $9.2M |
| Ensign Peak Advisors, Inc | 0.02% | No change | 496,590 | $9.0M |
| University of Wisconsin Foundation | 7.80% | Add +16.3% | 484,745 | $8.8M |
| Algert Global LLC | 0.12% | Add +67.5% | 454,463 | $8.2M |
| Raymond James Financial Inc. | 0.00% | Reduce -14.8% | 451,644 | $8.2M |
| Wasatch Advisors LP | 0.05% | Add +9.0% | 443,668 | $8.0M |
| Clearbridge Investments, LLC | 0.01% | Reduce -1.1% | 403,225 | $7.3M |
| Bank of New York Mellon Corp | 0.00% | Add +13.6% | 401,616 | $7.3M |
| UBS Group AG | 0.00% | Reduce -0.1% | 380,561 | $6.9M |
| New York State Common Retirement Fund | 0.01% | Add +320.8% | 333,497 | $6.0M |
| Fisher Asset Management | 0.00% | Add +29.2% | 323,051 | $5.9M |
| Catalio Capital Management, LP | 1.07% | Reduce -45.6% | 282,954 | $5.1M |
| Tetragon Partners GP Ltd | 0.92% | Add +4.1% | 258,132 | $4.7M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -38.6% | 253,153 | $4.6M |
| Invesco Ltd. | 0.00% | Add +80.8% | 248,941 | $4.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +11.6% | 239,285 | $4.3M |
| Swiss National Bank | 0.00% | Add +2.5% | 228,100 | $4.1M |
| Deutsche Bank AG | 0.00% | Add +12.8% | 221,123 | $4.0M |
| Citadel Advisors | 0.00% | Reduce -82.8% | 201,144 | $3.6M |
| SummitTX Capital, L.P. | 0.11% | Reduce -19.4% | 196,188 | $3.6M |
| Rhumbline Advisers | 0.00% | Add +7.0% | 187,223 | $3.4M |
| PDT Partners, LLC | 0.20% | No change | 182,986 | $3.3M |
| Rafferty Asset Management, LLC | 0.01% | Reduce -21.8% | 182,977 | $3.3M |
| HighVista Strategies LLC | 0.92% | Add +206.7% | 182,929 | $3.3M |
| Neo Ivy Capital Management | 0.81% | Reduce -28.9% | 168,753 | $3.1M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.00% | Reduce -0.5% | 164,887 | $3.0M |
| Ameriprise Financial Inc. | 0.00% | Reduce -17.6% | 162,972 | $3.0M |
| Sphera Funds Management LTD. | 0.50% | Reduce -59.1% | 160,594 | $2.9M |
| Millennium Management | 0.00% | Reduce -82.5% | 158,548 | $2.9M |
| Burkehill Global Management, LP | 0.15% | No change | 155,000 | $2.8M |
| Darwin Wealth Management, LLC | 0.87% | Add +34.4% | 154,862 | $2.8M |
| Woodline Partners LP | 0.01% | Add +23.7% | 149,388 | $2.7M |
| Alliancebernstein L.P. | 0.00% | Add +1.3% | 135,940 | $2.7M |
| Wells Fargo & Company | 0.00% | Reduce -1.6% | 145,509 | $2.6M |
| California State Teachers Retirement System | 0.00% | Add +15.6% | 139,663 | $2.5M |
| Aegis Wealth Management LLC | 1.40% | Add +77.9% | 135,030 | $2.4M |
| SG Americas Securities, LLC | 0.00% | Reduce -57.6% | 112,626 | $2.0M |
| Susquehanna International Group, LLP | 0.00% | Add +10.7% | 108,724 | $2.0M |
| Legal & General Group Plc | 0.00% | Reduce -18.3% | 96,462 | $1.7M |
| Man Group plc | 0.00% | New | 95,682 | $1.7M |
| Voya Investment Management LLC | 0.00% | Add +0.2% | 86,609 | $1.6M |
| AQR Capital Management | 0.00% | Add +19.2% | 84,238 | $1.5M |
| Marshall Wace, LLP | 0.00% | Reduce -87.7% | 83,147 | $1.5M |
| Profund Advisors LLC | 0.05% | Reduce -5.3% | 82,138 | $1.5M |
| Moore Capital Management, LP | 0.06% | New | 78,765 | $1.4M |
| Tudor Investment Corporation | 0.01% | Reduce -47.8% | 77,031 | $1.4M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +6.0% | 75,469 | $1.4M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 73,308 | $1.3M |
| MetLife Investment Management, LLC | 0.01% | Add +4.7% | 72,841 | $1.3M |
"% of holder's portfolio" is DYN's weight in each manager's 13F, not the share of Dyne Therapeutics Inc. the manager owns.