12 insiders reported 239 Form 4 transactions for NET Power Inc. (NPWR) over the past 18 months (most recent 2026-08-14). Recent activity: 8 Rivers Capital, LLC (10% Owner) Sell 50,000 shares, NPEH, LLC (10% Owner) Sell 50,000 shares, BEAUCHAMP DAMIAN R. (10% Owner) Sell 50,000 shares, NPEH, LLC (10% Owner) Sell 200,000 shares, 8 Rivers Capital, LLC (10% Owner) Sell 200,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | 8 Rivers Capital, LLC | 10% Owner | Sell | 50,000 | $81,575 |
| 2026-08-14 | NPEH, LLC | 10% Owner | Sell | 50,000 | $81,575 |
| 2026-08-14 | BEAUCHAMP DAMIAN R. | 10% Owner | Sell | 50,000 | $81,575 |
| 2026-08-14 | NPEH, LLC | 10% Owner | Sell | 200,000 | $323,840 |
| 2026-08-14 | 8 Rivers Capital, LLC | 10% Owner | Sell | 200,000 | $323,840 |
| 2026-08-14 | BEAUCHAMP DAMIAN R. | 10% Owner | Sell | 200,000 | $323,840 |
| 2026-08-14 | NPEH, LLC | 10% Owner | Sell | 507,100 | $990,518 |
| 2026-08-14 | 8 Rivers Capital, LLC | 10% Owner | Sell | 507,100 | $990,518 |
| 2026-08-14 | BEAUCHAMP DAMIAN R. | 10% Owner | Sell | 507,100 | $990,518 |
| 2026-08-11 | 8 Rivers Capital, LLC | 10% Owner | Sell | 55,400 | $86,075 |
| 2026-08-11 | BEAUCHAMP DAMIAN R. | 10% Owner | Sell | 60,345 | $92,080 |
| 2026-08-11 | NPEH, LLC | 10% Owner | Sell | 60,345 | $92,080 |
| 2026-08-11 | 8 Rivers Capital, LLC | 10% Owner | Sell | 60,345 | $92,080 |
| 2026-08-11 | BEAUCHAMP DAMIAN R. | 10% Owner | Sell | 55,400 | $86,075 |
| 2026-08-11 | NPEH, LLC | 10% Owner | Sell | 55,400 | $86,075 |
| 2026-08-11 | BEAUCHAMP DAMIAN R. | 10% Owner | Sell | 35,000 | $55,990 |
| 2026-08-11 | 8 Rivers Capital, LLC | 10% Owner | Sell | 35,000 | $55,990 |
| 2026-08-11 | NPEH, LLC | 10% Owner | Sell | 35,000 | $55,990 |
| 2026-08-06 | NPEH, LLC | 10% Owner | Sell | 89,255 | $134,436 |
| 2026-08-06 | NPEH, LLC | 10% Owner | Sell | 120,000 | $184,728 |
| 2026-08-06 | 8 Rivers Capital, LLC | 10% Owner | Sell | 120,000 | $184,728 |
| 2026-08-06 | BEAUCHAMP DAMIAN R. | 10% Owner | Sell | 120,000 | $184,728 |
| 2026-08-06 | NPEH, LLC | 10% Owner | Sell | 140,000 | $211,456 |
| 2026-08-06 | 8 Rivers Capital, LLC | 10% Owner | Sell | 140,000 | $211,456 |
| 2026-08-06 | BEAUCHAMP DAMIAN R. | 10% Owner | Sell | 140,000 | $211,456 |
Source: SEC Form 4 filings · as of 2026-08-14