Mack John Prosper sold OBIO
August 12, 2026 · Form 4 insider transaction
Mack John Prosper sold 4,885 shares of Orchestra BioMed Holdings, Inc. at $4.42 per share, a transaction worth $21.6K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Disposed (sell-side)
Shares
4,885
Price
$4.42
Total value
$21.6K
InsiderMack John Prosper
Role—
SecurityCommon Stock, par value $0.0001 per share
Transaction codeF: Shares withheld for taxes
Transaction dateAugust 12, 2026
Filing dateAugust 14, 2026
Shares owned after66,544
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Represents the withholding of shares by the Issuer to satisfy tax withholding obligations in connection with vesting of restricted stock units ("RSUs"). No shares were sold in the market as a result of the vesting of these RSUs and the satisfaction of tax withholding obligations.