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Insider Trading

Last Updated: 4 days, 1 hour ago

Tuanfang Liu has an estimated net worth of at least $73.2 million*, as of March 11, 2026. They own 33.3 million shares of ISPR stock.

Tuanfang Liu $ISPR SEC Form 4 Insider Trading

Tuanfang Liu has filed a total of 0 insider trades in $ISPR since 2021. We estimate that they now own 33.3 million shares of $ISPR, worth an estimated $73.2 million.



Insider Trading at $ISPR

There have been a total of 18 insider trades reported at $ISPR since 2021, with 13,000 shares purchased and 17,000 shares sold. The most active insider traders in $ISPR stock have been Michael Xue Wang, Steven P. Pryzbyla, and . The most recent trade was a purchase of 100 shares reported by Michael Xue Wang (Co-Chief Executive Officer), made on Mar 02, 2026.



History of Insider Stock Trades by Tuanfang Liu

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
No Trades Available - - - -




$ISPR Executives and Stock Owners with Insider Trades



*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.