DYN Dyne Therapeutics, Inc.: institutional ownership and insider trading
259 funds reported holding $4.71B of Dyne Therapeutics, Inc. in their latest 13F filings; in Q2 2026 funds net bought $97.9M, with 44 new positions and 28 funds selling out; over the last 12 months insiders bought $315K and sold $169M on the open market.
Famous investors holding DYN
- Renaissance Technologies (Renaissance Technologies): $8.01M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $26.4M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $9.59M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $1.34M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $315K, 0.0% of the portfolio
Largest institutional holders of DYN
- T. Rowe Price Investment Management, Inc. — $687M
- BlackRock, Inc. (BLK) — $276M
- Jupiter Topco LLC — $267M
- FMR LLC — $249M
- JANUS HENDERSON GROUP PLC (JHG) — $247M
- VANGUARD GROUP INC — $219M
- STATE STREET CORP (STT, STT-PG) — $166M
- Orbis Allan Gray Ltd — $156M
- Atlas Venture Life Science Advisors, LLC — $151M
- VANGUARD CAPITAL MANAGEMENT LLC — $140M
Recent DYN insider trades
- Oct 2, 2026: Posner Brian S bought 2,500 shares ($40.0K)
- Sep 8, 2026: Cox John sold 5,658 shares ($107K)
- Sep 8, 2026: Kerr Douglas sold 5,035 shares ($116K)
- Sep 8, 2026: Friedl-Naderer Johanna sold 1,085 shares ($25.4K)
5%+ owners
- T. Rowe Price Investment Management, Inc.: 18.7% (Schedule 13G/A, filed May 15, 2026)
- JANUS HENDERSON GROUP PLC: 8.3% (Schedule 13G/A, filed May 15, 2026)
- JANUS HENDERSON GROUP Ltd.: 7.3% (Schedule 13G/A, filed Aug 13, 2026)
- BlackRock, Inc.: 7.0% (Schedule 13G/A, filed Jul 28, 2026)
- FMR LLC: 6.8% (Schedule 13G/A, filed Aug 6, 2026)