DYNE THERAPEUTICS INC (DYN) Institutional Ownership and Insiders Activity

DYNE THERAPEUTICS INC (DYN) is widely held by institutional investors, with 237 firms reporting positions valued at approximately $4.17B based on SEC Form 13F filings for the quarter ended June 30, 2026.

T. Rowe Price Investment Management, Inc. is the largest disclosed holder, reporting approximately $686.56M in DYN holdings in its latest filing.

Recent insider activity includes 46 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.

Institutional Holders

237

Total Reported Value

$4.17B

Largest Holder

T. Rowe Price Investment Management, Inc.

Largest Position

$686.56M

Insider Transactions (90d)

46

Latest Filing Quarter

Q2 2026

New Institutional Positions

48

Funds Exiting Positions

36