Dyne Therapeutics, Inc. (DYN) Insider Ownership

Historic Insider Ownership Trends

Dyne Therapeutics's three largest insider shareholders as of March 23, 2026 are Venture Fund Xi, L.P. Atlas (TenPercentOwner, 6.56Mn shares), Dirk Kersten (Director, 4.77Mn shares), Venture Opportunity Fund I, L.P. Atlas (TenPercentOwner, 2.31Mn 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
Dirk Kersten 0 4,644,386 13 Mar, 2026
Jason P Rhodes 0 1,958,427 29 Jan, 2025
Douglas Kerr Chief Medical Officer 171,606 0 06 Mar, 2026
Johanna Friedl-Naderer Chief Commercial Officer 154,581 0 06 Mar, 2026
Wildon Farwell Chief Medical Officer 143,222 0 20 Aug, 2024
Jonathan Mcneill Chief Business Officer 132,106 0 20 Aug, 2024
Susanna Gatti High Chief Operating Officer 131,636 0 19 Sep, 2024
Erick Lucera Chief Financial Officer 131,100 0 17 Feb, 2026
Richard William Scalzo Svp, Head Of Finance Admin. 122,330 0 13 Mar, 2025
Brian S Posner 13,500 0 13 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
11 Mar, 2026 Dirk Kersten Common Stock D 129,672 $19.52 4,644,386 I S
11 Mar, 2026 Brian S Posner Common Stock A 2,000 $19.35 13,500 D P
09 Mar, 2026 Dirk Kersten Common Stock D 177,690 $17.72 5,285,156 I S
10 Mar, 2026 Dirk Kersten Common Stock D 9,482 $18.21 5,275,674 I S
10 Mar, 2026 Dirk Kersten Common Stock D 219,758 $19.33 5,055,916 I S
10 Mar, 2026 Dirk Kersten Common Stock D 281,858 $19.80 4,774,058 I S
06 Mar, 2026 Brian S Posner Common Stock A 3,000 $15.06 11,500 D P
05 Mar, 2026 Douglas Kerr Common Stock D 904 $14.90 171,606 D S
05 Mar, 2026 Johanna Friedl-Naderer Common Stock D 148 $14.90 154,581 D S
12 Feb, 2026 Erick Lucera Common Stock A 65,000 $0.00 131,100 D A
12 Feb, 2026 Douglas Kerr Common Stock A 85,000 $0.00 172,510 D A
12 Feb, 2026 Johanna Friedl-Naderer Common Stock A 60,000 $0.00 154,729 D A
12 Feb, 2026 Douglas Kerr Stock option (right to buy) A 130,000 $0.00 130,000 D A
12 Feb, 2026 Erick Lucera Stock Option (Right to Buy) A 105,000 $0.00 105,000 D A
12 Feb, 2026 Johanna Friedl-Naderer Stock option (right to buy) A 90,000 $0.00 90,000 D A
22 Dec, 2025 Vikram Karnani Stock option (right to buy) A 59,665 $0.00 59,665 D A
05 Dec, 2025 Johanna Friedl-Naderer Common Stock D 144 $20.72 94,729 D S
05 Dec, 2025 Douglas Kerr Common Stock D 880 $20.72 87,510 D S
01 Oct, 2025 Brian S Posner Stock option (right to buy) A 70,000 $0.00 70,000 D A
04 Sep, 2025 Johanna Friedl-Naderer Common Stock D 894 $13.27 95,017 D S