Posner Brian S bought DYN

May 26, 2026 · Form 4 insider transaction

Posner Brian S bought 2,000 shares of Dyne Therapeutics, Inc. at $18.21 per share, a transaction worth $36.4K. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 2 days after the transaction.

Direction
Acquired (buy-side)
Shares
2,000
Price
$18.21
Total value
$36.4K
RoleDirector
SecurityCommon Stock
Transaction codeP: Open-market purchase
Transaction dateMay 26, 2026
Filing dateMay 28, 2026
Shares owned after20,000
OwnershipDirect
10b5-1 planNo
AmendedNo
View the original Form 4 on SEC EDGAR