Trades Insiders Companies Cluster Buys Rankings About

ITS

InsiderTrading Screener

Track SEC Form 4 insider trades. See what corporate insiders are buying and selling.

Browse

Trades
Insiders
Companies
Cluster Buys
Rankings

Top Insiders

Mark Zuckerberg
Elon Musk
Jamie Dimon
Satya Nadella
Lisa Su
Jensen Huang

Screeners

CEO & CFO Purchases
Director Purchases
Top Buys This Week
Top Sales This Week
10b5-1 Trades
Buy/Sell Ratios
Politician Overlap
Sectors

Learn

Learn
What is a Form 4?
About & Methodology
What are Cluster Buys?
Top Insider Rankings
Privacy Policy
Terms of Use

Data

SEC EDGAR Form 4 ↗
CongressStock.com ↗
Track13F.com ↗
About the data

© 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

3

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-withheld3,510 shares ofOBIOat $0Jun 25Details
Mack John Prospergranted34,653 shares ofOBIOat $0Jun 25Details
Mack John Prospergranted15,000 shares ofOBIOat $0Aug 8Details

Explore insider screeners

Latest CEO & CFO Purchases Latest CEO & CFO Sales Director Purchases Officer Purchases Top Purchases This Week Top Sales This Week Top Officer Buys (Month)10% Owner Filings 10b5-1 Planned Trades Discretionary Trades Buy/Sell Ratios Politician–Insider Overlap

Mack John Prosper — Insider Insider Trades | Insider Trading Screener