Dyne Therapeutics, Inc. (DYN) Insider Ownership

Historic Insider Ownership Trends

Dyne Therapeutics's three largest insider shareholders as of June 18, 2026 are Venture Fund Xi, L.P. Atlas (TenPercentOwner, 7.33Mn shares), Venture Fund Xi, L.P. Atlas (TenPercentOwner, 6.56Mn shares), Dirk Kersten (Director, 4.20Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Brian S Posner - 15,500 0 01 Apr, 2026
John Cox Ceo President 374,145 0 06 Mar, 2026
Joshua T Brumm Ceo President 537,998 0 12 Mar, 2024
Jason P Rhodes - 0 1,958,427 29 Jan, 2025
Susanna Gatti High Chief Operating Officer 131,636 0 19 Sep, 2024
Erick Lucera Chief Financial Officer 125,373 0 03 Apr, 2026
Venture Fund Xi, L.P. Atlas - 7,326,117 0 15 Jul, 2021
Venture Opportunity Fund I, L.P. Atlas - 1,458,691 847,388 05 Mar, 2024
Richard William Scalzo Svp, Head Of Finance Admin. 122,330 0 13 Mar, 2025
Douglas Kerr Chief Medical Officer 171,606 0 06 Mar, 2026
Dirk Kersten - 0 4,196,573 23 Apr, 2026
Oxana Beskrovnaya Chief Scientific Officer 195,840 0 13 Mar, 2025
Jonathan Mcneill Chief Business Officer 132,106 0 20 Aug, 2024
Wildon Farwell Chief Medical Officer 143,222 0 20 Aug, 2024
Venture Opportunity Fund Ii, L.P. Atlas - 934,581 0 14 Dec, 2022
Johanna Friedl-Naderer Chief Commercial Officer 154,581 0 06 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
21 Apr, 2026 Dirk Kersten Common Stock D 8,300 $20.01 4,199,225 I S
21 Apr, 2026 Dirk Kersten Common Stock D 8,300 $20.01 4,199,225 I S
22 Apr, 2026 Dirk Kersten Common Stock D 2,652 $20.00 4,196,573 I S
22 Apr, 2026 Dirk Kersten Common Stock D 2,652 $20.00 4,196,573 I S
20 Apr, 2026 Jason P Rhodes Common Stock D 71,676 $20.06 1,886,751 I S
20 Apr, 2026 Jason P Rhodes Common Stock D 142,604 $20.06 5,554,904 I S
20 Apr, 2026 Jason P Rhodes Common Stock D 1,401 $20.06 14,561 I S
20 Apr, 2026 Jason P Rhodes Common Stock D 56,368 $20.06 1,402,200 I S
21 Apr, 2026 Jason P Rhodes Common Stock D 71,499 $19.51 1,815,252 I S
21 Apr, 2026 Jason P Rhodes Common Stock D 142,253 $19.51 5,412,651 I S
21 Apr, 2026 Jason P Rhodes Common Stock D 1,398 $19.51 13,163 I S
21 Apr, 2026 Jason P Rhodes Common Stock D 56,228 $19.51 1,345,972 I S
21 Apr, 2026 Jason P Rhodes Common Stock D 769 $20.05 1,814,483 I S
21 Apr, 2026 Jason P Rhodes Common Stock D 1,530 $20.05 5,411,121 I S
21 Apr, 2026 Jason P Rhodes Common Stock D 15 $20.05 13,148 I S
21 Apr, 2026 Jason P Rhodes Common Stock D 605 $20.05 1,345,367 I S
22 Apr, 2026 Jason P Rhodes Common Stock D 75,866 $19.68 1,738,617 I S
22 Apr, 2026 Jason P Rhodes Common Stock D 150,942 $19.68 5,260,179 I S
22 Apr, 2026 Jason P Rhodes Common Stock D 1,485 $19.68 11,663 I S
22 Apr, 2026 Jason P Rhodes Common Stock D 59,663 $19.68 1,285,704 I S