All stock lists
Net Power Inc. (NPWR)
NYSE: NPWR · Real-Time Price · USD
Industrials · Specialty Industrial Machinery
0.92+0.01 (+1.21%)
Insider Score
––Not scored
NPWR Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
NPWR Stock Insider Trading Activity
NPWR stock’s insider trading shows 29 sales on the open market for an estimated $6.69M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| 8 Rivers Capital, LLC Other | Sell | 150,000 | $1.84 | $276.07K | 16.7% | 750,000 | Sep 9, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 150,000 | $1.84 | $276.07K | 16.7% | 750,000 | Sep 9, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 100,000 | $1.94 | $193.52K | 10.0% | 900,000 | Sep 8, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 100,000 | $1.94 | $193.52K | 10.0% | 900,000 | Sep 8, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 41,350 | $1.91 | $79.08K | 4.0% | 1,000,000 | Aug 26, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 41,350 | $1.91 | $79.08K | 4.0% | 1,000,000 | Aug 26, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 201,550 | $1.91 | $384.26K | 16.2% | 1,041,350 | Aug 25, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 201,550 | $1.91 | $384.26K | 16.2% | 1,041,350 | Aug 25, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 507,100 | $1.95 | $990.52K | 29.0% | 1,242,900 | Aug 14, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 507,100 | $1.95 | $990.52K | 29.0% | 1,242,900 | Aug 14, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 200,000 | $1.62 | $323.84K | 10.3% | 1,750,000 | Aug 13, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 200,000 | $1.62 | $323.84K | 10.3% | 1,750,000 | Aug 13, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 50,000 | $1.63 | $81.58K | 2.5% | 1,950,000 | Aug 12, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 50,000 | $1.63 | $81.58K | 2.5% | 1,950,000 | Aug 12, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 35,000 | $1.60 | $55.99K | 1.7% | 2,000,000 | Aug 11, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 35,000 | $1.60 | $55.99K | 1.7% | 2,000,000 | Aug 11, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 55,400 | $1.55 | $86.07K | 2.7% | 2,035,000 | Aug 10, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 55,400 | $1.55 | $86.07K | 2.7% | 2,035,000 | Aug 10, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 60,345 | $1.53 | $92.08K | 2.8% | 2,090,400 | Aug 7, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 60,345 | $1.53 | $92.08K | 2.8% | 2,090,400 | Aug 7, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 89,255 | $1.51 | $134.44K | 4.0% | 2,150,745 | Aug 6, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 89,255 | $1.51 | $134.44K | 4.0% | 2,150,745 | Aug 6, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 140,000 | $1.51 | $211.46K | 5.9% | 2,240,000 | Aug 5, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 140,000 | $1.51 | $211.46K | 5.9% | 2,240,000 | Aug 5, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 120,000 | $1.54 | $184.73K | 4.8% | 2,380,000 | Aug 4, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 120,000 | $1.54 | $184.73K | 4.8% | 2,380,000 | Aug 4, 2026 | — | Form 4 |
| NPEH, LLC Other | Sell | 155,000 | $1.43 | $221.40K | 5.8% | 2,500,000 | Jul 30, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 155,000 | $1.43 | $221.40K | 5.8% | 2,500,000 | Jul 30, 2026 | — | Form 4 |
| 8 Rivers Capital, LLC Other | Sell | 45,000 | $1.41 | $63.33K | 1.7% | 2,655,000 | Jul 29, 2026 | — | Form 4 |
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.