Posner Brian S bought DYN
October 2, 2026 · Form 4 insider transaction
Posner Brian S bought 2,500 shares of Dyne Therapeutics, Inc. at $16.00 per share, a transaction worth $40.0K. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 4 days after the transaction.
Direction
Acquired (buy-side)
Shares
2,500
Price
$16.00
Total value
$40.0K
InsiderPosner Brian S
RoleDirector
SecurityCommon Stock
Transaction codeP: Open-market purchase
Transaction dateOctober 2, 2026
Filing dateOctober 6, 2026
Shares owned after27,000
OwnershipDirect
10b5-1 planNo
AmendedNo