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Dyne Therapeutics, Inc. — Insider Transactions

Form 4 filings by directors, officers, and 10%+ shareholders

SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.

Overview All Filings Annual Quarterly Insiders
Insider Title Type Shares Price Value Owns After Date
Cox John CEO & President Sale 2,662 $20.72 $55,157 196,877 Dec 5, 2025
Kerr Douglas Chief Medical Officer Sale 880 $20.72 $18,234 87,510 Dec 5, 2025
Friedl-Naderer Johanna Chief Commercial Officer Sale 144 $20.72 $2,984 94,729 Dec 5, 2025
Cox John CEO & President Sale 2,640 $13.41 $35,402 199,539 Sep 5, 2025
Friedl-Naderer Johanna Chief Commercial Officer Sale 144 $13.41 $1,931 94,873 Sep 4, 2025
Kerr Douglas Chief Medical Officer Sale 873 $13.41 $11,707 88,390 Sep 4, 2025
Cox John CEO & President Gift 10,000 202,179 Jul 14, 2025
Cox John CEO & President Sale 4,060 $13.35 $54,201 142,179 Jun 5, 2025
Kerr Douglas Chief Medical Officer Sale 1,342 $13.35 $17,916 92,815 Jun 5, 2025
Friedl-Naderer Johanna Chief Commercial Officer Sale 146 $13.35 $1,949 95,911 Jun 5, 2025
Lucera Erick Chief Financial Officer Award / Grant 66,100 66,100 Mar 31, 2025
Friedl-Naderer Johanna Chief Commercial Officer Sale 143 $12.12 $1,733 96,057 Mar 13, 2025
Scalzo Richard William SVP, Head of Finance & Admin. Sale 1,343 $11.38 $15,283 122,330 Mar 11, 2025
Beskrovnaya Oxana Chief Scientific Officer Sale 2,153 $11.38 $24,501 195,840 Mar 11, 2025
Kerr Douglas Chief Medical Officer Sale 1,343 $11.83 $15,888 94,157 Mar 5, 2025
Cox John CEO & President Sale 4,061 $11.83 $48,042 146,239 Mar 5, 2025
Scalzo Richard William SVP, Head of Finance & Admin. Sale 917 $11.83 $10,848 123,673 Mar 5, 2025
Beskrovnaya Oxana Chief Scientific Officer Sale 1,094 $11.83 $12,942 197,993 Mar 5, 2025
Beskrovnaya Oxana Chief Scientific Officer Sale 2,598 $13.95 $36,242 199,087 Feb 18, 2025
Scalzo Richard William SVP, Head of Finance & Admin. Sale 2,488 $13.95 $34,708 124,590 Feb 18, 2025
Rhodes Jason P Award / Grant 1,111,111 $13.50 $14,999,999 1,958,427 Jan 27, 2025
Beskrovnaya Oxana Chief Scientific Officer Sale 2,334 $28.12 $65,632 201,685 Dec 11, 2024
Scalzo Richard William SVP, Head of Finance & Admin. Sale 1,455 $28.12 $40,915 127,078 Dec 11, 2024
Kersten Dirk Sale 34,437 $29.18 $1,004,872 5,400,545 Dec 6, 2024
Kersten Dirk Sale 135,039 $29.39 $3,968,796 5,540,463 Dec 5, 2024
Friedl-Naderer Johanna Chief Commercial Officer Award / Grant 37,800 96,200 Dec 4, 2024
Scalzo Richard William SVP, Head of Finance & Admin. Award / Grant 32,700 128,533 Dec 4, 2024
Kerr Douglas Chief Medical Officer Award / Grant 48,000 95,500 Dec 4, 2024
Cox John CEO & President Award / Grant 145,300 150,300 Dec 4, 2024
Beskrovnaya Oxana Chief Scientific Officer Award / Grant 27,400 204,019 Dec 4, 2024
Kersten Dirk Sale 79,973 $29.66 $2,371,999 5,706,462 Dec 2, 2024
Incerti Carlo Sale 16,500 $28.73 $474,045 Nov 18, 2024
Scalzo Richard William SVP, Head of Finance & Admin. Sale 2,735 $28.20 $77,127 95,833 Nov 18, 2024
Beskrovnaya Oxana Chief Scientific Officer Sale 2,856 $28.20 $80,539 137,519 Nov 18, 2024
Rhodes Jason P Sale 72 $33.10 $2,383 847,316 Nov 14, 2024
Kersten Dirk Sale 8,929 $32.82 $293,050 5,786,435 Nov 13, 2024
Kersten Dirk Sale 13,414 $35.16 $471,636 73,225 Oct 21, 2024
Kersten Dirk Sale 23,671 $35.35 $836,770 99,652 Oct 17, 2024
Kersten Dirk Sale 5,441 $35.13 $191,142 123,323 Oct 3, 2024
Kersten Dirk Sale 8,423 $35.16 $296,153 150,282 Oct 2, 2024
Kersten Dirk Sale 29,007 $35.47 $1,028,878 160,640 Sep 30, 2024
Kersten Dirk Sale 1,260 $35.29 $44,465 189,679 Sep 25, 2024
Kersten Dirk Sale 4,610 $36.33 $167,481 193,296 Sep 23, 2024
Kersten Dirk Sale 1,554 $35.03 $54,437 392,277 Sep 19, 2024
HIGH SUSANNA GATTI Chief Operating Officer Sale 4,636 $34.41 $159,525 131,636 Sep 18, 2024
Scalzo Richard William SVP, Head of Finance & Admin. Sale 1,390 $34.55 $48,024 98,568 Sep 18, 2024
Beskrovnaya Oxana Chief Scientific Officer Sale 2,339 $34.55 $80,812 140,375 Sep 18, 2024
Kersten Dirk Sale 1,320 $35.04 $46,253 397,103 Sep 17, 2024
Beskrovnaya Oxana Chief Scientific Officer Sale 2,161 $31.89 $68,914 142,714 Sep 11, 2024
Scalzo Richard William SVP, Head of Finance & Admin. Sale 1,468 $31.89 $46,815 99,958 Sep 11, 2024