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 7 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
13F holders, Q2 2026
Institutional positions in Net Power Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 120
- +9 vs. Q1 2026
- Shares held
- 38.4M
- +3.21M (+9.1%) vs. Q1 2026
- Total value
- $64.1M
- +$9.10M (+16.6%) vs. Q1 2026
- New holders
- 19
- 48 more added
- Sold out
- 10
- 30 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting NPWR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 120 | $64.1M |
| Q1 2026 | 113 | $55.0M |
| Q4 2025 | 114 | $76.1M |
| Q3 2025 | 100 | $97.7M |
| Q2 2025 | 94 | $74.6M |
| Q1 2025 | 108 | $81.4M |
| Q4 2024 | 113 | $335.8M |
| Q3 2024 | 89 | $215.2M |
| Q2 2024 | 93 | $292.4M |
| Q1 2024 | 77 | $307.6M |
| Q4 2023 | 70 | $337.7M |
| Q3 2023 | 58 | $486.7M |
| Q2 2023 | 42 | $238.5M |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Net Power Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Renaissance Technologies LLC | 354,206 | $591.5K | 0.00% | −349,594−49.7% | Reduced |
| AQR Capital Management LLC | 385,283 | $643.4K | 0.00% | +231,790+151.0% | Added |
| Tudor Investment Corp Et Al | 397,515 | $663.9K | 0.00% | −33,638−7.8% | Reduced |
| D. E. Shaw & Co., Inc. | 412,502 | $688.9K | 0.00% | +177,105+75.2% | Added |
| UBS Group AG | 610,961 | $1.02M | 0.00% | +241,088+65.2% | Added |
| State Street Corp | 624,238 | $1.04M | 0.00% | +10,704+1.7% | Added |
| Two Sigma Investments, LP | 660,570 | $1.10M | 0.00% | −419,711−38.9% | Reduced |
| Argentarii, LLC | 746,799 | $1.21M | 0.36% | −1,850−0.2% | Reduced |
| Gsa Capital Partners LLP | 851,296 | $1.42M | 0.09% | +665,056+357.1% | Added |
| Cohen & Steers, Inc. | 888,954 | $1.49M | 0.00% | −3,186−0.4% | Reduced |
| Geode Capital Management, LLC | 1,006,014 | $1.68M | 0.00% | +145,628+16.9% | Added |
| Sourcerock Group LLC | 1,400,110 | $2.34M | 0.12% | −104,016−6.9% | Reduced |
| Toroso Investments, LLC | 1,546,562 | $2.58M | 0.01% | +1,013,309+190.0% | Added |
| Defiance ETFs, LLC | 1,555,837 | $2.60M | 0.04% | +1,022,584+191.8% | Added |
| Vanguard Capital Management LLC | 1,802,372 | $3.01M | 0.00% | +158,577+9.6% | Added |
| PEAK6 LLC | 1,985,754 | $3.32M | 0.08% | −2,461−0.1% | Reduced |
| BlackRock, Inc. | 2,416,294 | $4.04M | 0.00% | +273,378+12.8% | Added |
| Adage Capital Partners GP, L.L.C. | 2,840,000 | $4.74M | 0.01% | +1,300,000+84.4% | Added |
| HITE Hedge Asset Management LLC | 2,852,670 | $4.76M | 0.26% | +89,246+3.2% | Added |
| Share Andrew L. | 9,767,500 | $16.3M | 8.43% | 00.0% | Unchanged |
| CenterBook Partners LP | 0 | $0 | 0.00% | −437,771−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −218,981−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −166,242−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −155,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −52,548−100.0% | Sold out |
| Family Management Corp | 0 | $0 | 0.00% | −26,233−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −19,566−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −19,263−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −12,447−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |