Rhodes Jason P sold DYN

August 14, 2026 · Form 4 insider transaction

Rhodes Jason P sold 322,465 shares of Dyne Therapeutics, Inc. at $25.00 per share, a transaction worth $8.06M. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 3 days after the transaction.

Direction
Disposed (sell-side)
Shares
322,465
Price
$25.00
Total value
$8.06M
RoleDirector
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateAugust 14, 2026
Filing dateAugust 17, 2026
Shares owned after428,946
OwnershipIndirect
10b5-1 planYes
AmendedNo

Footnotes

Shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on July 13, 2026.; The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $25.00 to $25.8916 inclusive.; The shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). The general partner of AVOF I is Atlas Venture Associates Opportunity I, L.P. ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. The Reporting Person is a member of AVAO I LLC and disclaims Section 16 beneficial ownership of such securities held by AVOF I, except to the extent of his pecuniary interest therein, if any.

View the original Form 4 on SEC EDGAR