Company profile
Net Power Inc. Insider Trading
NPWREvery SEC Form 4 insider trading filing for Net Power Inc. (NPWR) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- NYSE
- Sector
- Electrical Industrial Apparatus
- CIK
- 0001845437
- Filings
- 140
- Insiders
- 23
- Last filing
- 2026-09-09
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $1.9M across 8 transactions.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Net Power Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $48.5M.
90 day insight
Over the last 90 days, Net Power Inc. insiders sold $7.6M across 38 transactions with no open-market purchases.
- Most active insider: NPEH, LLC with 19 transactions totaling $3.8M.
- Largest single sale: $991K by 8 Rivers Capital, LLC on Aug 14, 2026.
Activity skews bearish — sales outpace buys.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 9, 2026 | NPEH, LLC | NPWR | Sale | 150,000 | $1.84 | $276K |
| Sep 9, 2026 | 8 Rivers Capital, LLC | NPWR | Sale | 150,000 | $1.84 | $276K |
| Sep 8, 2026 | NPEH, LLC | NPWR | Sale | 100,000 | $1.94 | $194K |
| Sep 8, 2026 | 8 Rivers Capital, LLC | NPWR | Sale | 100,000 | $1.94 | $194K |
| Aug 26, 2026 | 8 Rivers Capital, LLC | NPWR | Sale | 41,350 | $1.91 | $79K |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=NPWR" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Net Power Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →