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© 2026 InsiderTradingScreener.com. Data from SEC EDGAR Form 4 filings.For informational purposes only. Not financial advice.

Home/Insiders/Mack John Prosper

Mack John Prosper

Insider

Insider

Total trades

4

Bought (open market)

$0

Sold (open market)

$0

Tickers traded

1

Recent trades

Most recent Form 4 filings by Mack John Prosper.

Mack John Prospertax-withheld4,885 shares ofOBIOat $4.42$22KAug 12 · filed Aug 14Details
Mack John Prospertax-withheld3,510 shares ofOBIOat $0Jun 24 · filed Jun 25Details
Mack John Prospergranted34,653 shares ofOBIOat $0Jun 23 · filed Jun 25Details

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Mack John Prospergranted15,000 shares ofOBIOat $0Aug 7, 2025 · filed Aug 8, 2025Details