Net Power Inc.
NPWR- Exchange
- NYSE
- Industry
- Electrical Industrial Apparatus
- SEC CIK
- 0001845437
In the last 90 days, Net Power Inc. insiders filed 0 open-market purchases and 2 sales; 120 institutions reported holding it in 13F filings for Q2 2026, worth $64.1M in total; no superinvestor holds it.
Other share classesNPWR.WT
Key figures
- Market capNo recent share count in SEC filings
- –
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $932.9K in total
- 2
- 13F holdersQ2 2026, +9 vs. previous quarter
- 120
- 13F valueReported value at the end of Q2 2026
- $64.1M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $0
- −100.0% year over year
- Net income, FY2025
- -$578.6M
- No comparable prior period
- Free cash flow, FY2025
- -$154.0M
- No comparable prior period
- Revenue, Q3 FY2026
- –
- No comparable prior period
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 2.61M
- Shares sold short
- Change
- −510.7K
- −16.4% vs. previous
- Days to cover
- 4.48
- At average daily volume
Superinvestors holding NPWR, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding NPWR at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-market purchases and sales by Net Power Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 10, 2026 (view filing)6:01 PM ET | Sep 8-9 | 2 days | Beauchamp Damian R. and 1 other10% Owner | SSaleClass A Common Stock | −250.0K | $1.88 | −$469.6K | −25.0%750.0K after | 2 lotsDuplicate filing |
| Sep 10, 2026 (view filing)6:00 PM ET | Sep 8-9 | 2 days | Npeh, LLC10% Owner | SSaleClass A Common Stock | −250.0K | $1.88 | −$469.6K | −25.0%750.0K after | 2 lots |
| Aug 27, 2026 (view filing)6:02 PM ET | Aug 25-26 | 2 days | Npeh, LLC10% Owner | SSaleClass A Common Stock | −242.9K | $1.91 | −$463.3K | −19.5%1.00M after | 2 lotsDuplicate filing |
| Aug 27, 2026 (view filing)6:00 PM ET | Aug 25-26 | 2 days | Beauchamp Damian R. and 1 other10% Owner | SSaleClass A Common Stock | −242.9K | $1.91 | −$463.3K | −19.5%1.00M after | 2 lots |
| Aug 14, 2026 (view filing)6:01 PM ET | Aug 12-14 | 2 days | Npeh, LLC10% Owner | SSaleClass A Common Stock | −757.1K | $1.84 | −$1.40M | −37.9%1.24M after | 3 lotsDuplicate filing |
| Aug 14, 2026 (view filing)6:00 PM ET | Aug 12-14 | 2 days | Beauchamp Damian R. and 1 other10% Owner | SSaleClass A Common Stock | −757.1K | $1.84 | −$1.40M | −37.9%1.24M after | 3 lots |
| Aug 11, 2026 (view filing)6:00 PM ET | Aug 7-11 | 4 days | Npeh, LLC10% Owner | SSaleClass A Common Stock | −150.7K | $1.55 | −$234.1K | −7.0%2.00M after | 3 lotsDuplicate filing |
| Aug 11, 2026 (view filing)6:00 PM ET | Aug 7-11 | 4 days | Beauchamp Damian R. and 1 other10% Owner | SSaleClass A Common Stock | −150.7K | $1.55 | −$234.1K | −7.0%2.00M after | 3 lots |
| Aug 6, 2026 (view filing)6:02 PM ET | Aug 4-6 | 2 days | Beauchamp Damian R. and 1 other10% Owner | SSaleClass A Common Stock | −349.3K | $1.52 | −$530.6K | −14.0%2.15M after | 3 lotsDuplicate filing |
| Aug 6, 2026 (view filing)6:01 PM ET | Aug 4-6 | 2 days | Npeh, LLC10% Owner | SSaleClass A Common Stock | −349.3K | $1.52 | −$530.6K | −14.0%2.15M after | 3 lots |
Top 10 13F holders, Q2 2026
See all 120 holdersThe largest institutional positions in Net Power Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Share Andrew L. | 9,767,500 | $16.3M | 8.43% | 00.0% | Unchanged |
| HITE Hedge Asset Management LLC | 2,852,670 | $4.76M | 0.26% | +89,246+3.2% | Added |
| Adage Capital Partners GP, L.L.C. | 2,840,000 | $4.74M | 0.01% | +1,300,000+84.4% | Added |
| BlackRock, Inc. | 2,416,294 | $4.04M | 0.00% | +273,378+12.8% | Added |
| PEAK6 LLC | 1,985,754 | $3.32M | 0.08% | −2,461−0.1% | Reduced |
| Vanguard Capital Management LLC | 1,802,372 | $3.01M | 0.00% | +158,577+9.6% | Added |
| Defiance ETFs, LLC | 1,555,837 | $2.60M | 0.04% | +1,022,584+191.8% | Added |
| Toroso Investments, LLC | 1,546,562 | $2.58M | 0.01% | +1,013,309+190.0% | Added |
| Sourcerock Group LLC | 1,400,110 | $2.34M | 0.12% | −104,016−6.9% | Reduced |
| Geode Capital Management, LLC | 1,006,014 | $1.68M | 0.00% | +145,628+16.9% | Added |
Holders of 5% or more of NPWR
See all 2 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Net Power Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| SK Inc. | 13D/A | 25.60%26.7M shares | 0.00 ppfrom 25.60% | Jul 17, 20252 filings | Aug 1, 2025 | SEC |
| 8 Rivers Capital, LLC | 13D/A | 17.86%19.0M shares | −1.64 ppfrom 19.50% | Jun 20, 202311 filings | Aug 17, 2026 | SEC |