SEC Insider Transactions from Mack John Prosper.

Last updated: 2026-03-14 09:52 UTC | Total transactions: 5

Mack John Prosper has filed 5 insider transactions across 1 company since August 2024.

Most recent transaction: a grant/award of 15000 shares of Orchestra BioMed Holdings, Inc. ($OBIO) on August 07, 2025.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Aug. 7, 2025 Orchestra BioMed Holdings, Inc. $OBIO Mack John Prosper Director A Common Stock, par value $0.0001 per share ("Common Stock") 15000 $0.00 40,286.0000 38,392,716 59.32% 0.04%
June 24, 2025 Orchestra BioMed Holdings, Inc. $OBIO Mack John Prosper Director A Common Stock, par value $0.0001 per share ("Common Stock") 12422 $0.00 25,286.0000 38,235,409 96.56% 0.03%
June 24, 2025 Orchestra BioMed Holdings, Inc. $OBIO Mack John Prosper Director A Stock Option (Right to Buy) 36797 $0.00 36,797.0000 38,235,409 9999.99% 0.10%
Aug. 7, 2024 Orchestra BioMed Holdings, Inc. $OBIO Mack John Prosper Director A Common Stock, par value $0.0001 per share ("Common Stock") 12864 $0.00 12,864.0000 35,800,273 9999.99% 0.04%
Aug. 7, 2024 Orchestra BioMed Holdings, Inc. $OBIO Mack John Prosper Director A Stock Option (Right to Buy) 40737 $0.00 40,737.0000 35,800,273 9999.99% 0.11%