NPEH, LLC (CIK 1981772) reported 70 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-14). Recent activity: Sell NPWR (50,000 shares), Sell NPWR (200,000 shares), Sell NPWR (507,100 shares), Sell NPWR (60,345 shares), Sell NPWR (55,400 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | Net Power Inc. (NPWR) | 10% Owner | Sell | 50,000 | $81,575 |
| 2026-08-14 | Net Power Inc. (NPWR) | 10% Owner | Sell | 200,000 | $323,840 |
| 2026-08-14 | Net Power Inc. (NPWR) | 10% Owner | Sell | 507,100 | $990,518 |
| 2026-08-11 | Net Power Inc. (NPWR) | 10% Owner | Sell | 60,345 | $92,080 |
| 2026-08-11 | Net Power Inc. (NPWR) | 10% Owner | Sell | 55,400 | $86,075 |
| 2026-08-11 | Net Power Inc. (NPWR) | 10% Owner | Sell | 35,000 | $55,990 |
| 2026-08-06 | NET Power Inc. (NPWR) | 10% Owner | Sell | 120,000 | $184,728 |
| 2026-08-06 | NET Power Inc. (NPWR) | 10% Owner | Sell | 140,000 | $211,456 |
| 2026-08-06 | NET Power Inc. (NPWR) | 10% Owner | Sell | 89,255 | $134,436 |
| 2026-07-30 | NET Power Inc. (NPWR) | 10% Owner | Sell | 55,858 | $82,229 |
| 2026-07-30 | NET Power Inc. (NPWR) | 10% Owner | Sell | 45,000 | $63,328 |
| 2026-07-30 | NET Power Inc. (NPWR) | 10% Owner | Sell | 155,000 | $221,402 |
| 2026-07-23 | NET Power Inc. (NPWR) | 10% Owner | Sell | 80,000 | $122,400 |
| 2026-07-23 | NET Power Inc. (NPWR) | 10% Owner | Sell | 90,000 | $137,322 |
| 2026-07-23 | NET Power Inc. (NPWR) | 10% Owner | Sell | 39,142 | $58,971 |
| 2026-05-14 | NET Power Inc. (NPWR) | 10% Owner | Sell | 400,000 | $975,560 |
| 2026-05-14 | NET Power Inc. (NPWR) | 10% Owner | Sell | 35,000 | $85,152 |
| 2026-05-13 | NET Power Inc. (NPWR) | 10% Owner | Buy | 3.0M | $0 |
| 2026-05-13 | NET Power Inc. (NPWR) | 10% Owner | Sell | 3.0M | $0 |
| 2026-03-10 | NET Power Inc. (NPWR) | Insider | Buy | 3.0M | $0 |
| 2026-03-10 | NET Power Inc. (NPWR) | Insider | Sell | 3.0M | $0 |
| 2026-03-05 | NET Power Inc. (NPWR) | Insider | Sell | 100,000 | $204,000 |
| 2026-03-02 | NET Power Inc. (NPWR) | Insider | Sell | 1,881 | $3,762 |
| 2026-03-02 | NET Power Inc. (NPWR) | Insider | Sell | 4,744 | $9,488 |
| 2026-03-02 | NET Power Inc. (NPWR) | Insider | Sell | 79,858 | $163,709 |
Source: SEC Form 4 filings · as of 2026-08-14