Gregg Piontek Net Worth
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Gregg Piontek has an estimated net worth of at least $14.9 million*, as of April 29, 2026. They own 819,326 shares of NPKI stock. They have sold 138,590 shares of NPKI stock since 2021, for an estimated $2.0 million.
Gregg Piontek $NPKI SEC Form 4 Insider Trading
Gregg Piontek has filed a total of 4 insider trades in $NPKI since 2021. Their most recent trade was a sale of 15,000 shares, made on Apr 09, 2026. Their largest trade was a sale of 73,590 shares, made on Mar 04, 2026. We estimate that they now own 819,326 shares of $NPKI, worth an estimated $12.9 million.
Insider Trading at $NPKI
There have been a total of 19 insider trades reported at $NPKI since 2021, with 26,500 shares purchased and 264,553 shares sold. The most active insider traders in $NPKI stock have been Gregg Piontek, Lori Briggs, and Matthew Lanigan. The most recent trade was a sale of 15,000 shares reported by Gregg Piontek (Senior Vice President and CFO), made on Apr 09, 2026.
History of Insider Stock Trades by Gregg Piontek
| Company Ticker | Purchase / Sale | Shares | Date | Disclosed (EST) |
|---|---|---|---|---|
NPKI
|
Sale | 15,000 | Apr 09, 2026 | April 10, 2026, 5:51 p.m. |
|
NPKI
|
Sale | 15,000 | Mar 25, 2026 | March 26, 2026, 4:29 p.m. |
|
NPKI
|
Sale | 73,590 | Mar 04, 2026 | March 5, 2026, 6:50 p.m. |
|
NPKI
|
Sale | 35,000 | Mar 04, 2026 | March 5, 2026, 6:50 p.m. |
NR
|
Purchase | 10,000 | Aug 05, 2022 | Aug. 9, 2022, 1:26 p.m. |
$NPKI Executives and Stock Owners with Insider Trades
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Gregg Piontek, Senior Vice President and CFO
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Lori Briggs, VP & President, Ind. Solutions
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Matthew Lanigan, President & CEO
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Mary Celeste Fruge, VP, General Counsel
*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.