Dyne Therapeutics, Inc. - DYN

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
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Filed Form Reporting person Percent Shares SEC
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Fund XI, L.P. 2.4% 4,476,487 View
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Associates XI, L.P. 2.4% 4,479,449 View
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Associates XI, LLC 2.4% 4,479,449 View
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Opportunity Fund I, L.P. 0.5% 975,931 View
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Associates Opportunity I, L.P. 0.5% 975,931 View
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Associates Opportunity I, LLC 0.5% 975,931 View
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Opportunity Fund II, L.P. 0.7% 1,344,719 View
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Associates Opportunity II, L.P. 0.7% 1,344,719 View
Aug 13, 2026 SCHEDULE 13G/A Atlas Venture Associates Opportunity II, LLC 0.7% 1,344,719 View
Aug 13, 2026 SCHEDULE 13G/A JANUS HENDERSON GROUP Ltd. 7.3% 11,997,738 View
Aug 06, 2026 SCHEDULE 13G/A FMR LLC 6.8% 11,207,000 View
Aug 06, 2026 SCHEDULE 13G/A Abigail P. Johnson 6.8% 11,207,000 View
Jul 28, 2026 SCHEDULE 13G/A BlackRock, Inc. 7.0% 11,489,504 View
May 15, 2026 SCHEDULE 13G/A JANUS HENDERSON GROUP PLC 8.3% 13,647,376 View
May 15, 2026 SCHEDULE 13G/A T. Rowe Price Investment Management, Inc. 18.7% 30,785,801 View
May 06, 2026 SCHEDULE 13G FMR LLC 5.4% 8,908,980 View
May 06, 2026 SCHEDULE 13G Abigail P. Johnson 5.4% 8,908,980 View
Mar 26, 2026 SCHEDULE 13G/A The Vanguard Group 0.0% 0 View
Mar 06, 2026 SCHEDULE 13G/A T. Rowe Price Investment Management, Inc. 16.2% 26,578,437 View
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G. Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F). Amendments (/A) can repeat the same holder over time, so rows should not be summed. Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.