Dyne Therapeutics Inc (DYN)
Who owns Dyne Therapeutics Inc (DYN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.7% of the shares are freely tradable; institutional investors hold 115.5%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| T. Rowe Price Investment Management,Inc. | 18.62 | 30,785,801 | +50.8 | 03/31/2026 |
| HHG PLC | 8.26 | 13,647,376 | -1.7 | 03/31/2026 |
| BlackRock Inc | 7.08 | 11,699,870 | +4.5 | 03/31/2026 |
| Vanguard Group Inc | 6.78 | 11,215,565 | +14.9 | 12/31/2025 |
| Atlas Venture Life Science Advisors, LLC | 5.52 | 9,130,465 | +0.0 | 03/31/2026 |
| FMR Inc | 5.39 | 8,908,980 | +35.6 | 03/31/2026 |
| Orbis Allan Gray Ltd | 4.09 | 6,762,231 | +40.8 | 03/31/2026 |
| State Street Corp | 4.02 | 6,653,746 | -0.6 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| T. Rowe Price US Small-Cap Core Equity | 4.24 | 7,012,202 | +28.9 | 03/31/2026 |
| T. Rowe Price Small-Cap Stock | 4.24 | 7,007,213 | -0.1 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 27. Jul 2026 | Kersten Dirk | Director | Sell | 5,388 | 26.04 | 140,319 |
| 27. Jul 2026 | Kersten Dirk | Director | Sell | 256,072 | 25.50 | 6,530,451 |
| 7. Jul 2026 | Rhodes Jason P | Director | Sell | 5,000 | 23.61 | 118,050 |
| 7. Jul 2026 | Rhodes Jason P | Director | Sell | 11,665 | 23.62 | 275,527 |
| 7. Jul 2026 | Rhodes Jason P | Director | Sell | 49,193 | 23.17 | 1,139,802 |
| 7. Jul 2026 | Rhodes Jason P | Director | Sell | 14,844 | 23.62 | 350,615 |
| 7. Jul 2026 | Rhodes Jason P | Director | Sell | 62,543 | 23.17 | 1,449,121 |
| 7. Jul 2026 | Rhodes Jason P | Director | Sell | 29,587 | 23.62 | 698,845 |
| 7. Jul 2026 | Rhodes Jason P | Director | Sell | 124,379 | 23.17 | 2,881,861 |
| 6. Jul 2026 | Rhodes Jason P | Director | Sell | 100,019 | 22.79 | 2,279,433 |
| 6. Jul 2026 | Rhodes Jason P | Director | Sell | 127,182 | 22.79 | 2,898,478 |
| 6. Jul 2026 | Rhodes Jason P | Director | Sell | 253,039 | 22.79 | 5,766,759 |
| 22. Apr 2026 | Jason P Rhodes | Director | Sell | 287,956 | 19.68 | 5,666,974 |
| 21. Apr 2026 | Jason P Rhodes | Director | Sell | 274,297 | 19.52 | 5,354,277 |
| 20. Apr 2026 | Jason P Rhodes | Director | Sell | 272,049 | 20.06 | 5,457,303 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.