MarketPeel
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Senior Vice President and CFO
Gregg Piontek
Mon, Jun 1, 2026
Jun 1
bought $0.00 of NPKI
40,379 shares @ $0.00
Increased holdings by +4.90%
14th largest trade (out of 21)
Trade made by an officer
Price 10% above 200-day moving average
Small Cap stock — insider trades carry more weight
NPKINPK International Inc.
EnergyOil & Gas Equipment & Services
1D0.00%
1W+1.16%
1M-3.91%
3M-9.73%
6M—
1Y—

Recent insider activity at NPKI

Aug 17Michael A. LewisSold$28.71kJun 8Lori BriggsSold$122.79kJun 3Matthew LaniganSold$2.42mJun 2Lori BriggsSold$152.28kMay 15Michael A. LewisSold$30.80kApr 9Gregg PiontekSold$225.68kApr 1Gregg PiontekSold$507.86kMar 25Gregg PiontekSold$225.38k
Full NPKI profile →Gregg Piontek’s trading history →
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