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Insider · CIK 0002031699

John Prosper Mack

director

Files at OBIO (Orchestra BioMed Holdings, Inc.). First filing -, latest -.

John Prosper Mack files SEC Form 4 as director at OBIO (Orchestra BioMed Holdings, Inc.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.

A track record needs three past buys with six months of prices behind them; John Prosper Mack has 0, so none is measured yet.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 0
$0 bought, $0 sold

Signals

This insider’s open-market buys and sells, scored.

No scored open-market trades yet.

Transactions

Every row this insider has filed, 3 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Aug 7, 2025OBIO
Orchestra BioMed Holdings, Inc.
AGrant or award
Common Stock, par value $0.0001 per share ("Common Stock")
+15,000$0.00$040,286Aug 8, 2025
Jun 24, 2025OBIO
Orchestra BioMed Holdings, Inc.
AGrant or award
Common Stock, par value $0.0001 per share ("Common Stock")
+12,422$0.00$025,286Jun 26, 2025
Jun 24, 2025OBIO
Orchestra BioMed Holdings, Inc.
AGrant or award
Stock Option (Right to Buy)derivative
+36,797$0.00$036,797Jun 26, 2025

Questions about John Prosper Mack

Answered from the filings on this page, as of the latest one.

Is John Prosper Mack buying or selling?

John Prosper Mack has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.

How did John Prosper Mack's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and John Prosper Mack has 0.

Where does John Prosper Mack file Form 4?

John Prosper Mack has filed Form 4 at OBIO (Orchestra BioMed Holdings, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

John Prosper Mack: insider trades and track record | InsiderTell