Orchestra BioMed (OBIO) Director Mack John Prosper Withholds 4,885 Shares for Taxes

What Happened

Mack John Prosper, a director of Orchestra BioMed Holdings, Inc. (OBIO), had 4,885 shares withheld on August 12, 2026 to satisfy tax withholding obligations tied to the vesting of restricted stock units (RSUs). The withholding value was reported at $4.42 per share, totaling approximately $21,592. This was a tax-withholding disposition (code F), not an open-market sale.

Key Details

• Transaction date: 2026-08-12
• Shares withheld/disposed: 4,885 at $4.42 per share — total ~$21,592
• Transaction type/code: Tax withholding on vested RSUs (F)
• Shares owned after transaction: Not specified in the Form 4 filing
• Filing date: 2026-08-14 (filed two days after the transaction; appears timely)
• Footnote: The issuer withheld shares to satisfy tax obligations; no shares were sold in the market as a result of the vesting (per footnote F1).

Context

Withholding shares to cover taxes on vested RSUs is a common, routine administrative action and does not indicate a discretionary sale or a direct market sentiment by the insider. For retail investors, tax-withholding dispositions are informational but generally less meaningful than open-market purchases or sales when assessing insider conviction.