Cox John bought DYN

July 14, 2025 · Form 4 insider transaction

Cox John bought 100,000 shares of Dyne Therapeutics, Inc. at $9.11 per share, a transaction worth $911.0K. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Acquired (buy-side)
Shares
100,000
Price
$9.11
Total value
$911.0K
InsiderCox John
RoleOfficer, Director
SecurityCommon Stock
Transaction codeP: Open-market purchase
Transaction dateJuly 14, 2025
Filing dateJuly 15, 2025
Shares owned after242,179
OwnershipDirect
10b5-1 planNo
AmendedNo

Footnotes

The Reporting Person's purchase of shares of Common Stock reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), to the extent of 8,121 shares, with the Reporting Person's sale of 4,061 shares on March 5, 2025 and 4,060 shares on June 5, 2025 automatically sold by the Reporting Person to satisfy tax withholding obligations in connection with the vesting of restricted stock units granted to the Reporting Person on December 4, 2024. The Reporting Person has paid to the Issuer an aggregate amount of $29,017.22, representing the amount of the profit deemed realized in connection with the short-swing transaction under Section 16(b) of the Exchange Act.; The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices within the range of $9.02 to $9.15, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote of this Form 4.

View the original Form 4 on SEC EDGAR