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Insider

Gregg Piontek

Senior Vice President and CFO

Gregg Piontek (Senior Vice President and CFO) filed 4 Form 4 reports in the trailing twelve months (0 purchases, 4 sales), most often in NPK International Inc. (NPKI). The largest single filing was $1.5M of NPKI (108,590 sh across 2 lots, as filed), executed Mar 4.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
4
0 buys · 4 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$2.5M
shares × price, as filed
Last traded
Apr 9
Filed Apr 10

Median ADV $13.2M across their filed names

Open performance
Volume by month
$1.8M$877K$0Oct 2024Apr 2025Oct 2025Apr 2026Mar 2026 · sells $1.8MApr 2026 · sells $734K
Buys $0 Sells $2.5M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Industrials 4 filings

Sector per market data · by filing · past 12 months

Most traded names
NPKI NPK International Inc. NPKI · 0 buys · 4 sells 4 filings
Recent filings
NPKISALE NPK International Inc. View filing → $226K
15,000 sh × $15.05
Exec Apr 9
Filed Apr 10 · 5:30 PM ET
NPKISALE NPK International Inc. View filing → $508K
35,000 sh × $14.51
Exec Apr 1
Filed Apr 3 · 5:30 PM ET
NPKISALE NPK International Inc. View filing → $225K
15,000 sh × $15.03
Exec Mar 25
Filed Mar 26 · 5:30 PM ET
NPKISALE NPK International Inc. View filing → $1.5M
108,590 sh across 2 lots
Exec Mar 4
Filed Mar 5 · 5:30 PM ET