Insider Transactions Reported by 22 Insiders of Dyne Therapeutics, Inc.

Symbol
DYN on Nasdaq
Location
Waltham, MA

Insiders trading volume in the past year

Dyne Therapeutics, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Atlas Venture Fund XI, L.P. 10%+ Owner $165,705,095 26 Feb 2024
Dirk Kersten Director $94,526,825 -$13,149,314 -12% 09 Mar 2026
Atlas Venture Opportunity Fund I, L.P. 10%+ Owner $69,297,674 01 Mar 2024
Atlas Venture Opportunity Fund II, L.P. 10%+ Owner $44,508,906 12 Dec 2022
Jason P. Rhodes Director $26,438,765 30 May 2025
Brumm Joshua T. CEO & President, Director $13,950,288 08 Mar 2024
John Cox CEO & President, Director $6,726,760 +$725,533 +12% 05 Mar 2026
Wildon Farwell Chief Medical Officer $6,588,212 19 Aug 2024
Jonathan McNeill Chief Business Officer $6,076,876 19 Aug 2024
SUSANNA GATTI HIGH Chief Operating Officer $4,529,595 18 Sep 2024
Douglas Kerr Chief Medical Officer $2,556,929 -$108,461 -4.1% 05 Mar 2026
Erick Lucera Chief Financial Officer $2,375,532 12 Feb 2026
Johanna Friedl-Naderer Chief Commercial Officer $2,303,256 -$22,666 -0.97% 05 Mar 2026
Oxana Beskrovnaya Chief Scientific Officer $2,228,659 11 Mar 2025
Richard William Scalzo SVP, Head of Finance & Admin. $1,392,115 11 Mar 2025
Brian S. Posner Director $173,190 +$45,180 +35% 06 Mar 2026
Carlo Incerti Director $0 30 May 2025
Vikram Karnani Director 22 Dec 2025
Lawrence Otto Klein Director 05 Jul 2022
David Charles Lubner Director 30 May 2025
Catherine Stehman-Breen Director 30 May 2025
EDWARD HURWITZ Director 30 May 2025

Recent Insider Transactions by Companies or Individuals for Dyne Therapeutics, Inc.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Dirk Kersten DYN Common Stock Sale -9.67% $10,000,327 $19.57 -511,098 4,774,058 10 Mar 2026 See footnote
Dirk Kersten DYN Common Stock Sale -3.25% $3,148,987 $17.72 -177,690 5,285,156 09 Mar 2026 See footnote
Brian S. Posner DYN Common Stock Purchase 35.3% $45,180 $15.06 3,000 11,500 06 Mar 2026 Direct
Johanna Friedl-Naderer DYN Common Stock Sale -0.1% $2,205 $14.90 -148 154,581 05 Mar 2026 Direct
Douglas Kerr DYN Common Stock Sale -0.52% $13,470 $14.90 -904 171,606 05 Mar 2026 Direct
John Cox DYN Common Stock Sale -0.72% $40,707 $14.90 -2,732 374,145 05 Mar 2026 Direct
John Cox DYN Common Stock Award 91.4% 180,000 376,877 12 Feb 2026 Direct
John Cox DYN Stock option (right to buy) Award 285,000 285,000 12 Feb 2026 Direct
Douglas Kerr DYN Common Stock Award 97.1% 85,000 172,510 12 Feb 2026 Direct
Douglas Kerr DYN Stock option (right to buy) Award 130,000 130,000 12 Feb 2026 Direct
Johanna Friedl-Naderer DYN Common Stock Award 63.3% 60,000 154,729 12 Feb 2026 Direct
Johanna Friedl-Naderer DYN Stock option (right to buy) Award 90,000 90,000 12 Feb 2026 Direct
Erick Lucera DYN Common Stock Award 98.3% 65,000 131,100 12 Feb 2026 Direct
Erick Lucera DYN Stock Option (Right to Buy) Award 105,000 105,000 12 Feb 2026 Direct
Vikram Karnani DYN Stock option (right to buy) Award 59,665 59,665 22 Dec 2025 Direct
John Cox DYN Common Stock Sale -1.33% $55,157 $20.72 -2,662 196,877 05 Dec 2025 Direct
Douglas Kerr DYN Common Stock Sale -1% $18,234 $20.72 -880 87,510 05 Dec 2025 Direct
Johanna Friedl-Naderer DYN Common Stock Sale -0.15% $2,984 $20.72 -144 94,729 05 Dec 2025 Direct
Brian S. Posner DYN Stock option (right to buy) Award 70,000 70,000 01 Oct 2025 Direct
John Cox DYN Common Stock Sale -1.31% $35,402 $13.41 -2,640 199,539 05 Sep 2025 Direct
Johanna Friedl-Naderer DYN Common Stock Sale -0.15% $1,931 $13.41 -144 94,873 05 Sep 2025 Direct
Douglas Kerr DYN Common Stock Sale -0.98% $11,707 $13.41 -873 88,390 05 Sep 2025 Direct
Johanna Friedl-Naderer DYN Common Stock Sale -0.93% $11,863 $13.27 -894 95,017 04 Sep 2025 Direct
Douglas Kerr DYN Common Stock Sale -3.83% $47,135 $13.27 -3,552 89,263 04 Sep 2025 Direct
Johanna Friedl-Naderer DYN Stock option (right to buy) Award 51,255 51,255 16 Jul 2025 Direct
Douglas Kerr DYN Stock option (right to buy) Award 65,110 65,110 16 Jul 2025 Direct
John Cox DYN Stock option (right to buy) Award 197,285 197,285 16 Jul 2025 Direct
John Cox DYN Common Stock Gift -16.5% -40,000 202,179 15 Jul 2025 Direct
John Cox DYN Common Stock Purchase 70.3% $911,000 $9.11 100,000 242,179 14 Jul 2025 Direct
John Cox DYN Common Stock Sale -2.78% $54,201 $13.35 -4,060 142,179 05 Jun 2025 Direct
Douglas Kerr DYN Common Stock Sale -1.43% $17,916 $13.35 -1,342 92,815 05 Jun 2025 Direct
Johanna Friedl-Naderer DYN Common Stock Sale -0.15% $1,949 $13.35 -146 95,911 05 Jun 2025 Direct
EDWARD HURWITZ DYN Stock option (right to buy) Award 35,000 35,000 30 May 2025 Direct
David Charles Lubner DYN Stock option (right to buy) Award 35,000 35,000 30 May 2025 Direct
Jason P. Rhodes DYN Stock option (right to buy) Award 35,000 35,000 30 May 2025 Direct
Dirk Kersten DYN Stock option (right to buy) Award 35,000 35,000 30 May 2025 Direct
Carlo Incerti DYN Stock option (right to buy) Award 35,000 35,000 30 May 2025 Direct
Catherine Stehman-Breen DYN Stock option (right to buy) Award 35,000 35,000 30 May 2025 Direct
Erick Lucera DYN Common Stock Award 66,100 66,100 31 Mar 2025 Direct
Erick Lucera DYN Stock Option (Right to Buy) Award 214,500 214,500 31 Mar 2025 Direct
Johanna Friedl-Naderer DYN Common Stock Sale -0.15% $1,733 $12.12 -143 96,057 13 Mar 2025 Direct
Richard William Scalzo DYN Common Stock Sale -1.09% $15,283 $11.38 -1,343 122,330 11 Mar 2025 Direct
Oxana Beskrovnaya DYN Common Stock Sale -1.09% $24,501 $11.38 -2,153 195,840 11 Mar 2025 Direct
Douglas Kerr DYN Common Stock Sale -1.41% $15,888 $11.83 -1,343 94,157 05 Mar 2025 Direct
John Cox DYN Common Stock Sale -2.7% $48,042 $11.83 -4,061 146,239 05 Mar 2025 Direct
Richard William Scalzo DYN Common Stock Sale -0.74% $10,848 $11.83 -917 123,673 05 Mar 2025 Direct
Oxana Beskrovnaya DYN Common Stock Sale -0.55% $12,942 $11.83 -1,094 197,993 05 Mar 2025 Direct
Oxana Beskrovnaya DYN Common Stock Sale -1.29% $36,242 $13.95 -2,598 199,087 18 Feb 2025 Direct
Richard William Scalzo DYN Common Stock Sale -1.96% $34,708 $13.95 -2,488 124,590 18 Feb 2025 Direct
Jason P. Rhodes DYN Common Stock Award 131.1% 1,111,111 1,958,427 27 Jan 2025 See footnote
* An asterisk sign (*) next to the price indicates that the price is likely invalid.