NPKI insider trading — NPK International Inc.
No open-market insider purchases or sales were filed for NPK International Inc. (NPKI) in the last 90 days. Other insider transactions — such as stock awards, option exercises or tax withholding — are listed below.
Updated Oct 16, 2026.
Recent NPKI insider transactions
Every Form 4 filed by NPK International Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 22, 2026 | Barton Iii Alvin James | EVP Commercial Growth & Ops. | A · Grant/award | Direct | 12,850 | — | — | Form 4 |
| Sep 9, 2026 | Warren Matthew James | Chief Accounting Officer | S · Sale · 10b5-1 | Direct | 2,991 | $13.41 | $40K | Form 4 |
| Aug 27, 2026 | Robeson Rose M | Director | S · Sale · 10b5-1 | Direct | 10,000 | $13.49 | $135K | Form 4 |
| Aug 17, 2026 | Lewis Michael A | Director | S · Sale · 10b5-1 | Direct | 2,013 | $14.26 | $29K | Form 4 |
| Jul 28, 2026 | Pederson Kristen J. | Director | A · Grant/award | Direct | 6,614 | — | — | Form 4 |
NPKI insider trading FAQ
Are insiders buying NPKI stock?
Not on the open market. In the last 90 days, NPK International Inc. insiders made no open-market purchases, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading NPKI?
No insider bought or sold on the open market in the last 90 days.
Where does NPKI insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.