Institutional Ownership
Dyne Therapeutics Inc
CUSIP 26818M108COMDYNQ1 2026
13D / 13G Filings
62
Schedule 13D/13G on record
Beneficial Filers
20
Distinct reporting persons
Largest Stake
17.9%
Max % of class reported
Institutional Holders
220
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
62 filings · latest Mar 6, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Mar 6, 2026 | T. Rowe Price Investment Management, Inc. | 13G/A | 16.2% | 26.58M | SEC |
| 2 | Feb 17, 2026 | Janus Henderson Group PLC | 13G/A | 8.5% | 13.89M | SEC |
| 3 | Jan 8, 2026 | T. Rowe Price Investment Management, Inc. | 13G | 10.7% | 17.54M | SEC |
| 4 | Nov 14, 2025 | Janus Henderson Group PLC | 13G/A | 10.4% | 14.75M | SEC |
| 5 | Nov 14, 2025 | Ra Capital Management, L.P. | 13G/A | — | 913.30M | SEC |
| 6 | Nov 13, 2025 | Atlas Venture Fund Xi, L.P. | 13G/A | 4.0% | 5.71M | SEC |
| 7 | Aug 7, 2025 | Janus Henderson Group PLC | 13G/A | 10.1% | 14.39M | SEC |
| 8 | May 15, 2025 | Ra Capital Management, L.P. | 13G/A | 8.5% | 9.71M | SEC |
| 9 | May 15, 2025 | Fordyne B.V. | 13G/A | 4.8% | 5.40M | SEC |
| 10 | May 15, 2025 | Rtw Investments, LP | 13G/A | 1.5% | 1.69M | SEC |
52 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Dyne Therapeutics Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Janus Henderson Group PLC | 13.65M | $247.43M |
| 2 | Blackrock, Inc. | 11.70M | $212.12M |
| 3 | Atlas Venture Life Science Advisors, LLC | 9.13M | $165.54M |
| 4 | Fmr LLC | 8.91M | $161.52M |
| 5 | Orbis Allan Gray Ltd | 6.76M | $122.60M |
| 6 | State Street Corp | 6.65M | $120.63M |
| 7 | Perceptive Advisors LLC | 4.67M | $84.65M |
| 8 | Fcpm III Services B.V. | 4.64M | $84.20M |
| 9 | Tcg Crossover Management, LLC | 4.62M | $83.67M |
| 10 | Vestal Point Capital, LP | 4.00M | $72.52M |