NET POWER INC CLASS A (NPWR) — insider trading
Industrials · NYSE
NET POWER INC CLASS A (NPWR) has 62 reported SEC Form 4 insider transactions in our data, including 47 open-market sales among the most recent 62 (latest 2026-09-09).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-09 | NPEH, LLC | 10% owner | Open-market sale | 150,000 | $1.84 | $276.1K | Form 4 |
| 2026-09-09 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 150,000 | $1.84 | $276.1K | Form 4 |
| 2026-09-08 | NPEH, LLC | 10% owner | Open-market sale | 100,000 | $1.94 | $193.5K | Form 4 |
| 2026-09-08 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 100,000 | $1.94 | $193.5K | Form 4 |
| 2026-08-26 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 41,350 | $1.91 | $79.1K | Form 4 |
| 2026-08-26 | NPEH, LLC | 10% owner | Open-market sale | 41,350 | $1.91 | $79.1K | Form 4 |
| 2026-08-25 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 201,550 | $1.91 | $384.3K | Form 4 |
| 2026-08-25 | NPEH, LLC | 10% owner | Open-market sale | 201,550 | $1.91 | $384.3K | Form 4 |
| 2026-08-14 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 507,100 | $1.95 | $990.5K | Form 4 |
| 2026-08-14 | NPEH, LLC | 10% owner | Open-market sale | 507,100 | $1.95 | $990.5K | Form 4 |
| 2026-08-13 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 200,000 | $1.62 | $323.8K | Form 4 |
| 2026-08-13 | NPEH, LLC | 10% owner | Open-market sale | 200,000 | $1.62 | $323.8K | Form 4 |
| 2026-08-12 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 50,000 | $1.63 | $81.6K | Form 4 |
| 2026-08-12 | NPEH, LLC | 10% owner | Open-market sale | 50,000 | $1.63 | $81.6K | Form 4 |
| 2026-08-11 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 35,000 | $1.60 | $56.0K | Form 4 |
| 2026-08-11 | NPEH, LLC | 10% owner | Open-market sale | 35,000 | $1.60 | $56.0K | Form 4 |
| 2026-08-10 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 55,400 | $1.55 | $86.1K | Form 4 |
| 2026-08-10 | NPEH, LLC | 10% owner | Open-market sale | 55,400 | $1.55 | $86.1K | Form 4 |
| 2026-08-07 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 60,345 | $1.53 | $92.1K | Form 4 |
| 2026-08-07 | NPEH, LLC | 10% owner | Open-market sale | 60,345 | $1.53 | $92.1K | Form 4 |
| 2026-08-06 | NPEH, LLC | 10% owner | Open-market sale | 89,255 | $1.51 | $134.4K | Form 4 |
| 2026-08-06 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 89,255 | $1.51 | $134.4K | Form 4 |
| 2026-08-05 | NPEH, LLC | 10% owner | Open-market sale | 140,000 | $1.51 | $211.5K | Form 4 |
| 2026-08-05 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 140,000 | $1.51 | $211.5K | Form 4 |
| 2026-08-04 | NPEH, LLC | 10% owner | Open-market sale | 120,000 | $1.54 | $184.7K | Form 4 |
| 2026-08-04 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 120,000 | $1.54 | $184.7K | Form 4 |
| 2026-07-30 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 155,000 | $1.43 | $221.4K | Form 4 |
| 2026-07-30 | NPEH, LLC | 10% owner | Open-market sale | 155,000 | $1.43 | $221.4K | Form 4 |
| 2026-07-29 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 45,000 | $1.41 | $63.3K | Form 4 |
| 2026-07-29 | NPEH, LLC | 10% owner | Open-market sale | 45,000 | $1.41 | $63.3K | Form 4 |
| 2026-07-28 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 55,858 | $1.47 | $82.2K | Form 4 |
| 2026-07-28 | NPEH, LLC | 10% owner | Open-market sale | 55,858 | $1.47 | $82.2K | Form 4 |
| 2026-07-23 | NPEH, LLC | 10% owner | Open-market sale | 39,142 | $1.51 | $59.0K | Form 4 |
| 2026-07-23 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 39,142 | $1.51 | $59.0K | Form 4 |
| 2026-07-22 | NPEH, LLC | 10% owner | Open-market sale | 90,000 | $1.53 | $137.3K | Form 4 |
| 2026-07-22 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 90,000 | $1.53 | $137.3K | Form 4 |
| 2026-07-21 | NPEH, LLC | 10% owner | Open-market sale | 80,000 | $1.53 | $122.4K | Form 4 |
| 2026-07-21 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 80,000 | $1.53 | $122.4K | Form 4 |
| 2026-06-03 | Alexander Ralph | Director | Grant / award / vesting | 71,770 | — | $0 | Form 4 |
| 2026-06-03 | Kelliher Joseph T | Director | Grant / award / vesting | 71,770 | — | $0 | Form 4 |
| 2026-06-03 | PETERSON CAROL R. | Director | Grant / award / vesting | 71,770 | — | $0 | Form 4 |
| 2026-06-03 | Veltmann Alejandra | Director | Grant / award / vesting | 71,770 | — | $0 | Form 4 |
| 2026-05-13 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 35,000 | $2.43 | $85.2K | Form 4 |
| 2026-05-13 | NPEH, LLC | 10% owner | Open-market sale | 35,000 | $2.43 | $85.2K | Form 4 |
| 2026-05-12 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 400,000 | $2.44 | $975.6K | Form 4 |
| 2026-05-12 | NPEH, LLC | 10% owner | Open-market sale | 400,000 | $2.44 | $975.6K | Form 4 |
| 2026-04-13 | Shuman Ned Leland | Officer (Chief Financial Officer) | Grant / award / vesting | 529,801 | — | $0 | Form 4 |
| 2026-03-06 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Conversion of derivative (derivative) | 3,000,000 | — | — | Form 4/A |
| 2026-03-06 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Other acquisition or disposition | 3,000,000 | — | — | Form 4/A |
| 2026-03-06 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Conversion of derivative | 3,000,000 | — | — | Form 4/A |
| 2026-03-06 | NPEH, LLC | 10% owner | Conversion of derivative (derivative) | 3,000,000 | — | — | Form 4/A |
| 2026-03-06 | NPEH, LLC | 10% owner | Other acquisition or disposition | 3,000,000 | — | — | Form 4/A |
| 2026-03-06 | NPEH, LLC | 10% owner | Conversion of derivative | 3,000,000 | — | — | Form 4/A |
| 2026-03-06 | NPEH, LLC | 10% owner | Other acquisition or disposition | 3,000,000 | — | — | Form 4 |
| 2026-03-06 | NPEH, LLC | 10% owner | Conversion of derivative | 3,000,000 | — | — | Form 4 |
| 2026-03-06 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Other acquisition or disposition | 3,000,000 | — | — | Form 4 |
| 2026-03-06 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Conversion of derivative | 3,000,000 | — | — | Form 4 |
| 2026-03-03 | 8 Rivers Capital, LLC; BEAUCHAMP DAMIAN R. | 10% owner | Open-market sale | 100,000 | $2.04 | $204.3K | Form 4 |
| 2026-03-03 | NPEH, LLC | 10% owner | Open-market sale | 100,000 | $2.04 | $204.3K | Form 4 |
| 2026-03-02 | NPEH, LLC | 10% owner | Open-market sale | 79,858 | $2.05 | $163.8K | Form 4 |
| 2026-02-27 | NPEH, LLC | 10% owner | Open-market sale | 4,744 | $2.00 | $9.5K | Form 4 |
| 2026-02-26 | NPEH, LLC | 10% owner | Open-market sale | 1,881 | $2.00 | $3.8K | Form 4 |
Ask the chat about NPWR's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: NET POWER INC CLASS A (NPWR).
Last updated 2026-09-09 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.