Fruge Mary Celeste (CIK 1975485) reported 15 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-03). Recent activity: Sell NPKI (3,833 shares), Sell NPKI (5,218 shares), Sell NPKI (6,797 shares), Buy NPKI (17,274 shares), Buy NPKI (18,002 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-03 | NPK International Inc. (NPKI) | VP, General Counsel | Sell | 3,833 | $54,850 |
| 2026-06-03 | NPK International Inc. (NPKI) | VP, General Counsel | Sell | 5,218 | $74,670 |
| 2026-06-03 | NPK International Inc. (NPKI) | VP, General Counsel | Sell | 6,797 | $97,265 |
| 2026-06-03 | NPK International Inc. (NPKI) | VP, General Counsel | Buy | 17,274 | $0 |
| 2026-05-21 | NPK International Inc. (NPKI) | VP, General Counsel | Buy | 18,002 | $0 |
| 2026-03-18 | NPK International Inc. (NPKI) | VP, General Counsel | Buy | 1,000 | $4,320 |
| 2026-03-18 | NPK International Inc. (NPKI) | VP, General Counsel | Sell | 1,000 | $13,560 |
| 2026-03-10 | NPK International Inc. (NPKI) | VP, General Counsel | Buy | 11,193 | $48,354 |
| 2026-03-10 | NPK International Inc. (NPKI) | VP, General Counsel | Sell | 11,193 | $149,315 |
| 2026-01-21 | NPK International Inc. (NPKI) | VP, General Counsel | Buy | 17,274 | $0 |
| 2025-06-03 | NPK International Inc. (NPKI) | VP, General Counsel | Sell | 6,797 | $54,988 |
| 2025-06-03 | NPK International Inc. (NPKI) | VP, General Counsel | Sell | 6,820 | $55,174 |
| 2025-06-03 | NPK International Inc. (NPKI) | VP, General Counsel | Sell | 3,833 | $31,009 |
| 2025-06-03 | NPK International Inc. (NPKI) | VP, General Counsel | Buy | 17,247 | $0 |
| 2025-05-16 | NPK International Inc. (NPKI) | VP, General Counsel | Buy | 39,783 | $0 |
Source: SEC Form 4 filings · as of 2026-06-03