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Insider Trading

Last Updated: 1 week, 6 days ago

Gregg Piontek has an estimated net worth of at least $12.2 million*, as of Oct. 29, 2025. They own 919,326 shares of NPKI stock.

Gregg Piontek $NPKI SEC Form 4 Insider Trading

Gregg Piontek has filed a total of 0 insider trades in $NPKI since 2021. Their most recent trade was a of shares, made on . Their largest trade was a of shares, made on . We estimate that they now own 919,326 shares of $NPKI, worth an estimated $12.2 million.



Insider Trading at $NPKI

There have been a total of 11 insider trades reported at $NPKI since 2021, with 26,500 shares purchased and 109,744 shares sold. The most active insider traders in $NPKI stock have been Lori Briggs, Matthew Lanigan, and . The most recent trade was a sale of 10,108 shares reported by Lori Briggs (VP & President, Ind. Solutions), made on Oct 01, 2025.



History of Insider Stock Trades by Gregg Piontek

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




$NPKI 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.