Piontek Gregg

Piontek Gregg is listed in filings as Senior Vice President and CFO at NPK International Inc.. This profile follows SEC Form 4 activity through Jun 3, 2026, including sale activity. Recent filings connect the profile to NPK International Inc. (NPKI). The current snapshot covers public activity from May 16, 2025 to Jun 3, 2026. Reported amounts are shown as $227.4K to $128.2K. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.