Gregg Piontek

Senior Vice President and CFO, NPK International Inc.

Bought, 12 months

$0.0M

Sold, 12 months

$2.5M

Companies

Latest trade

Apr 9, 2026

Companies

NPK International Inc.Senior Vice President and CFO −$2.5M

Trades

NPKI Sold 15,000 shares at $15.05 · planned $0.2M Apr 9

NPKI Sold 35,000 shares at $14.51 · planned $0.5M Apr 1

NPKI Sold 15,000 shares at $15.03 · planned $0.2M Mar 25

NPKI Sold 108,590 shares at $14.07 · planned $1.5M Mar 4

Open-market trades from SEC Form 4 only: no grants, option exercises or gifts. People are matched by the name on their filings, so two people with the same name share this page. For information only — not investment advice.