CIK 0000071829 · Accelerated filer
NPK International Inc.
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- NPKI
- Exchange
- NYSE
- Industry
- Services-Miscellaneous Equipment Rental & Leasing
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 721123385
- Phone
- 281-362-6800
- Business address
- 9320 LAKESIDE BOULEVARD, SUITE 100, THE WOODLANDS, TX, 77381
- Former names
- NEWPARK RESOURCES INC
- Open-market buys, last 90 days
- $138,600
- in 1 filing
- Open-market sales, last 90 days
- $203,735
- in 3 filings, $204K under 10b5-1 plans
Net −$65,135. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-04-09 | Piontek Gregg Senior Vice President and CFO | Sale 10b5-1 | −15,000 | $15.05 | $226K | 819,326 |
| 2026-04-01 | Piontek Gregg Senior Vice President and CFO | Sale 10b5-1 | −35,000 | $14.51 | $508K | 834,326 |
| 2026-03-25 | Piontek Gregg Senior Vice President and CFO | Sale 10b5-1 | −15,000 | $15.03 | $225K | 869,326 |
| 2026-03-16 | Fruge Mary Celeste VP, General Counsel | Option exercise 10b5-1 | +1,000 | $4.32 | $4K | 266,213 |
| 2026-03-16 | Fruge Mary Celeste VP, General Counsel | Sale 10b5-1 | −1,000 | $13.56 | $14K | 265,213 |
| 2026-03-16 | Fruge Mary Celeste VP, General Counsel | Option exercise · Non-Qualified Stock Option (right to buy) 10b5-1 | −1,000 | 0 | ||
| 2026-03-06 | Fruge Mary Celeste VP, General Counsel | Option exercise 10b5-1 | +11,193 | $4.32 | $48K | 276,406 |
| 2026-03-06 | Fruge Mary Celeste VP, General Counsel | Sale 10b5-1 | −11,193 | $13.34 | $149K | 265,213 |
| 2026-03-06 | Fruge Mary Celeste VP, General Counsel | Option exercise · Non-Qualified Stock Option (right to buy) 10b5-1 | −11,193 | 1,000 | ||
| 2026-03-04 | Piontek Gregg Senior Vice President and CFO | Option exercise 10b5-1 | +73,590 | $4.32 | $318K | 992,916 |
| 2026-03-04 | Piontek Gregg Senior Vice President and CFO | Sale 10b5-1 | −73,590 | $14.10 | $1.0M | 919,326 |
| 2026-03-04 | Piontek Gregg Senior Vice President and CFO | Sale 10b5-1 | −35,000 | $14.02 | $491K | 884,326 |
| 2026-03-04 | Piontek Gregg Senior Vice President and CFO | Option exercise · Non-Qualified Stock Option (right to buy) 10b5-1 | −73,590 | 0 | ||
| 2026-02-23 | Lewis Michael A Director | Sale 10b5-1 | −2,013 | $14.31 | $29K | 131,333 |
| 2025-11-24 | Lewis Michael A Director | Sale 10b5-1 | −2,013 | $12.00 | $24K | 133,346 |
| 2025-10-03 | LANIGAN MATTHEW President & CEO | Gift | −770,249 | 325,664 | ||
| 2025-10-01 | Briggs Lori VP & President, Ind. Solutions | Sale 10b5-1 | −10,108 | $11.51 | $116K | 242,513 |
| 2025-09-03 | LANIGAN MATTHEW President & CEO | Option exercise 10b5-1 | +1,000 | $4.32 | $4K | 1,096,913 |
| 2025-09-03 | LANIGAN MATTHEW President & CEO | Sale 10b5-1 | −1,000 | $10.38 | $10K | 1,095,913 |
| 2025-09-03 | LANIGAN MATTHEW President & CEO | Option exercise · Non-Qualified Stock Option (right to buy) 10b5-1 | −1,000 | $10.38 | $10K | 0 |
Page 3 of 12 · 234 trades