Form 4: NPKI Director Sells Shares Under 10b5-1 Plan

NPK International Inc. Director Michael A. Lewis sold 2,013 shares of common stock for a weighted average price of $12.0001 per share, executed under a pre-arranged 10b5-1 trading plan.

Summary

• Michael A. Lewis, a Director of NPK International Inc. (NPKI), reported a sale of common stock.
• The transaction involved 2,013 shares of NPKI common stock.
• The shares were sold on November 24, 2025, at a weighted average price of $12.0001 per share.
• The sale was executed automatically pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lewis on March 7, 2025.
• Following this transaction, Mr. Lewis beneficially owns 133,346 shares of NPKI common stock directly.
• The shares were sold in multiple open market transactions at prices ranging from $11.65 to $12.13.

Sentiment

Score: 5

Explanation: This Form 4 filing reports a routine insider stock sale executed under a pre-arranged 10b5-1 trading plan, which is typically not indicative of new sentiment or material changes in the company's outlook. Therefore, the sentiment is neutral.

Future Outlook

This filing does not contain any forward-looking statements or guidance.

Industry Context

This filing is a routine disclosure of an insider transaction and does not provide information related to broader industry trends or competitors.

Next Steps

• The reporting person undertakes to provide full information regarding the number of shares sold at each separate price within the reported range upon request to NPK International Inc., any security holder, or the SEC staff.

Key Dates

Keywords

NPK International Inc., NPKI, Form 4, Insider Trading, Stock Sale, Director, 10b5-1 Plan, Michael A. Lewis