Dyne TherapeuticsDYN
13F holders, Q2 2026 (June 30)245holders +17
43new positions
28sold out
6famous investors
$22.19avg. 13F price*
At the end of Q2 2026, 245 institutions reported holding Dyne Therapeutics Inc. (DYN) in their 13F filings, up 17 from Q1 2026. 43 opened new positions and 28 sold out. The largest holders were T. Rowe Price Investment Management, Inc. ($686.6M), BlackRock, Inc. ($275.5M) and Jupiter Topco LLC ($266.6M). 6 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Dyne Therapeutics Inc.
- CUSIP
- 26818M108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 43 | $56.8M |
| Exits | 28 | $26.7M |
All 13F filers, Q1 2026 → Q2 2026: 17,542,545 shares bought and 13,144,721 shares sold, net +4,397,824 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 245 holders
| T. Rowe Price Investment Management, Inc. | 0.45% | Add +0.4% | 30,912,287 | $686.6M |
| BlackRock, Inc. | 0.00% | Add +6.0% | 12,404,330 | $275.5M |
| Jupiter Topco LLC | 0.11% | — | 11,997,738 | $266.6M |
| FMR LLC | 0.01% | Add +25.8% | 11,207,000 | $248.9M |
| State Street Corp. | 0.00% | Add +12.1% | 7,458,263 | $165.6M |
| Orbis Allan Gray Ltd | 0.54% | Add +3.6% | 7,006,542 | $155.6M |
| Atlas Venture Life Science Advisors, LLC | 17.14% | Reduce -25.5% | 6,800,099 | $151.0M |
| Vanguard Capital Management LLC | 0.00% | Reduce -1.5% | 6,310,969 | $140.2M |
| TCG Crossover Management, LLC | 2.46% | No change | 4,615,144 | $102.5M |
| Vanguard Portfolio Management LLC | 0.00% | Reduce -2.7% | 4,048,428 | $89.9M |
| T. Rowe Price Associates Inc. | 0.01% | Add +69.1% | 3,936,806 | $87.4M |
| FCPM III Services B.V. | 11.39% | Reduce -17.1% | 3,848,256 | $85.5M |
| Geode Capital Management, LLC | 0.00% | Add +6.8% | 3,743,427 | $83.2M |
| Vestal Point Capital, LP | 1.75% | Reduce -15.6% | 3,375,000 | $75.0M |
| Orbimed Advisors LLC | 1.36% | Add +10.9% | 3,235,684 | $71.9M |
| Frazier Life Sciences Management, L.P. | 1.53% | No change | 3,153,082 | $70.0M |
| Armistice Capital, LLC | 1.90% | Reduce -2.8% | 3,087,226 | $68.6M |
| JPMorgan Chase & Co. | 0.00% | Reduce -3.1% | 3,151,656 | $67.2M |
| Perceptive Advisors LLC | 0.93% | Reduce -42.4% | 2,689,235 | $59.7M |
| Logos Global Management LP | 2.44% | Add +82.1% | 2,550,000 | $56.6M |
| Bank of America Corp. | 0.00% | Add +54.7% | 2,233,398 | $49.6M |
| Venrock Adviser, LLC | 1.46% | No change | 2,173,913 | $48.3M |
| Goldman Sachs Group Inc. | 0.01% | Add +25.2% | 2,157,195 | $47.9M |
| Siren, L.L.C. | 0.96% | Reduce -4.5% | 2,129,125 | $47.3M |
| Franklin Resources Inc. | 0.01% | Add +1.1% | 2,030,819 | $45.1M |
| Dimensional Fund Advisors LP | 0.01% | Add +104.5% | 1,946,479 | $43.2M |
| MPM Bioimpact LLC | 2.60% | Add +36.5% | 1,922,093 | $42.7M |
| Samlyn Capital, LLC | 0.65% | Reduce -8.7% | 1,754,708 | $39.0M |
| Sofinnova Investments, Inc. | 1.97% | Add +1.5% | 1,658,384 | $36.8M |
| Palo Alto Investors LP | 5.06% | Reduce -0.3% | 1,647,521 | $36.6M |
| Vivo Capital, LLC | 3.16% | No change | 1,557,466 | $34.6M |
| Aberdeen Group plc | 0.05% | Add +7.6% | 1,539,434 | $34.2M |
| Deep Track Capital, LP | 0.49% | Reduce -25.0% | 1,500,000 | $33.3M |
| Marshall Wace, LLP | 0.03% | Add +1690.7% | 1,488,917 | $33.1M |
| Polar Capital Holdings Plc | 0.08% | Reduce -5.3% | 1,286,811 | $28.6M |
| Northern Trust Corp. | 0.00% | Add +6.6% | 1,278,081 | $28.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +3.8% | 1,202,203 | $26.7M |
| Citadel Advisors | 0.01% | Add +468.7% | 1,143,958 | $25.4M |
| Saturn V Capital Management LP | 3.37% | Add +9.4% | 1,057,493 | $23.5M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +4.4% | 988,949 | $22.0M |
| Novo Holdings A/S | 1.24% | New | 960,394 | $21.3M |
| Rock Springs Capital Management LP | 1.02% | Reduce -3.1% | 942,154 | $20.9M |
| Braidwell LP | 0.79% | Reduce -45.2% | 921,598 | $20.5M |
| Frontier Capital Management Co. LLC | 0.18% | Add +6.4% | 874,138 | $19.4M |
| Baker Bros. Advisors LP | 0.09% | No change | 813,449 | $18.1M |
| Fiera Capital Corp | 0.06% | Reduce -42.8% | 789,989 | $17.5M |
| Morgan Stanley | 0.00% | Reduce -19.7% | 746,200 | $16.6M |
| Artisan Partners Limited Partnership | 0.02% | Add +6.5% | 659,786 | $14.7M |
| Raymond James Financial Inc. | 0.00% | Add +27.6% | 576,350 | $12.8M |
| TD Asset Management Inc | 0.01% | Add +3.5% | 548,112 | $12.2M |
| Algert Global LLC | 0.13% | Add +11.4% | 506,273 | $11.2M |
| Wasatch Advisors LP | 0.06% | No change | 443,668 | $9.9M |
| UBS Group AG | 0.00% | Add +16.5% | 443,284 | $9.8M |
| Millennium Management | 0.01% | Add +172.4% | 431,850 | $9.6M |
| Clearbridge Investments, LLC | 0.01% | Add +3.0% | 415,131 | $9.2M |
| Bank of New York Mellon Corp | 0.00% | Add +2.0% | 409,801 | $9.1M |
| ArrowMark Colorado Holdings LLC | 0.37% | Reduce -41.1% | 397,221 | $8.8M |
| Nuveen, LLC | 0.00% | Reduce -46.1% | 386,787 | $8.6M |
| Renaissance Technologies | 0.01% | Reduce -32.4% | 360,572 | $8.0M |
| Tetragon Partners GP Ltd | 1.29% | Add +38.2% | 356,657 | $7.9M |
| New York State Common Retirement Fund | 0.01% | Add +6.7% | 355,953 | $7.9M |
| Granahan Investment Management, LLC | 0.27% | New | 338,565 | $7.5M |
| University of Wisconsin Foundation | 5.51% | Reduce -35.3% | 313,559 | $7.0M |
| Moore Capital Management, LP | 0.16% | Add +288.2% | 305,794 | $6.8M |
| Squarepoint Ops LLC | 0.01% | Reduce -64.0% | 300,074 | $6.7M |
| Fisher Asset Management | 0.00% | Reduce -7.6% | 298,505 | $6.6M |
| Ameriprise Financial Inc. | 0.00% | Add +83.0% | 298,317 | $6.6M |
| Ensign Peak Advisors, Inc | 0.01% | Reduce -41.7% | 289,730 | $6.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +12.8% | 269,985 | $6.0M |
| Alyeska Investment Group, L.P. | 0.01% | New | 245,278 | $5.4M |
| Catalio Capital Management, LP | 1.02% | Reduce -13.4% | 244,929 | $5.4M |
| Deutsche Bank AG | 0.00% | Add +9.6% | 242,392 | $5.4M |
| Swiss National Bank | 0.00% | Add +1.7% | 232,000 | $5.2M |
| Wells Fargo & Company | 0.00% | Add +51.6% | 220,664 | $4.9M |
| Sphera Funds Management LTD. | 0.63% | Add +24.3% | 199,594 | $4.4M |
| SummitTX Capital, L.P. | 0.11% | Reduce -0.8% | 194,643 | $4.3M |
| Citigroup Inc. | 0.00% | Add +397.2% | 187,915 | $4.2M |
| Rhumbline Advisers | 0.00% | Reduce -1.8% | 183,799 | $4.1M |
| Voya Investment Management LLC | 0.00% | Add +101.4% | 174,457 | $3.9M |
| HighVista Strategies LLC | 0.87% | Reduce -6.0% | 171,961 | $3.8M |
| Alps Advisors Inc. | 0.02% | New | 167,082 | $3.7M |
| Invesco Ltd. | 0.00% | Reduce -33.9% | 164,598 | $3.7M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.00% | Reduce -4.2% | 157,916 | $3.5M |
| Y-Intercept (Hong Kong) Ltd | 0.07% | Add +139.7% | 156,203 | $3.5M |
| Axxcess Wealth Management, LLC | 0.05% | New | 155,270 | $3.4M |
| Darwin Wealth Management, LLC | 0.94% | Add +0.3% | 155,270 | $3.4M |
| Aegis Wealth Management LLC | 1.57% | Add +11.1% | 150,030 | $3.3M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | Reduce -85.0% | 150,000 | $3.3M |
| Woodline Partners LP | 0.01% | No change | 149,388 | $3.3M |
| Alliancebernstein L.P. | 0.00% | Add +26.6% | 172,080 | $3.1M |
| California State Teachers Retirement System | 0.00% | Reduce -3.2% | 135,147 | $3.0M |
| Schonfeld Strategic Advisors LLC | 0.02% | New | 134,752 | $3.0M |
| XTX Topco Ltd | 0.04% | Add +194.5% | 125,786 | $2.8M |
| Jain Global LLC | 0.03% | New | 116,341 | $2.6M |
| Rafferty Asset Management, LLC | 0.01% | Reduce -37.1% | 115,102 | $2.6M |
| Russell Investments Group, Ltd. | 0.00% | Add +163.7% | 105,553 | $2.3M |
| Legal & General Group Plc | 0.00% | Add +1.5% | 97,940 | $2.2M |
| SG Americas Securities, LLC | 0.00% | Reduce -13.3% | 97,648 | $2.2M |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 0.06% | New | 87,069 | $1.9M |
| AQR Capital Management | 0.00% | Reduce -0.2% | 84,054 | $1.9M |
"% of holder's portfolio" is DYN's weight in each manager's 13F, not the share of Dyne Therapeutics Inc. the manager owns.