Net PowerNPWR
13F holders, Q3 2025 (September 30)100holders +6
17new positions
12sold out
4famous investors
$3.01avg. 13F price*
At the end of Q3 2025, 100 institutions reported holding Net Power Inc. (NPWR) in their 13F filings, up 6 from Q2 2025. 17 opened new positions and 12 sold out. The largest holders were Share Andrew L. ($29.9M), Adage Capital Partners Gp, L.L.C. ($7.6M) and Millennium Management ($7.1M). 4 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Net Power Inc.
- CUSIP
- 64107A105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 17 | $3.8M |
| Exits | 12 | $1.7M |
All 13F filers, Q2 2025 → Q3 2025: 5,259,241 shares bought and 2,990,961 shares sold, net +2,268,280 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 100 holders
| Share Andrew L. | 21.28% | No change | 9,937,500 | $29.9M |
| Adage Capital Partners Gp, L.L.C. | 0.01% | Reduce -11.6% | 2,509,868 | $7.6M |
| Millennium Management | 0.01% | Add +104.1% | 2,365,246 | $7.1M |
| BlackRock, Inc. | 0.00% | Add +2.3% | 2,047,780 | $6.2M |
| Vanguard Group Inc. | 0.00% | Reduce -24.5% | 1,785,594 | $5.4M |
| CenterBook Partners LP | 0.19% | Add +78.8% | 1,248,348 | $3.8M |
| HITE Hedge Asset Management LLC | 0.16% | Reduce -41.8% | 976,428 | $2.9M |
| Cohen & Steers, Inc. | 0.01% | Reduce -0.5% | 950,711 | $2.9M |
| Morgan Stanley | 0.00% | Add +189.8% | 936,368 | $2.8M |
| Geode Capital Management, LLC | 0.00% | Add +4.0% | 874,519 | $2.6M |
| Two Sigma Investments, LP | 0.00% | Add +36.8% | 821,793 | $2.5M |
| Nuveen, LLC | 0.00% | No change | 702,391 | $2.1M |
| State Street Corp. | 0.00% | Add +3.9% | 594,693 | $1.8M |
| Wellington Management Group LLP | 0.00% | Add +4.5% | 516,508 | $1.6M |
| UBS Group AG | 0.00% | Add +183.1% | 430,452 | $1.3M |
| Susquehanna International Group, LLP | 0.00% | Reduce -19.8% | 423,357 | $1.3M |
| Caption Management, LLC | 0.06% | Reduce -14.0% | 345,472 | $1.0M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -12.1% | 336,832 | $1.0M |
| Walleye Capital LLC | 0.01% | New | 284,932 | $858K |
| Goldman Sachs Group Inc. | 0.00% | Add +1017.4% | 278,425 | $838K |
| Jane Street Group, LLC | 0.00% | New | 268,795 | $809K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.1% | 268,291 | $808K |
| Northern Trust Corp. | 0.00% | Reduce -7.7% | 255,917 | $770K |
| Two Sigma Advisers, LP | 0.00% | Add +53.9% | 241,900 | $728K |
| Empowered Funds, LLC | 0.01% | New | 223,204 | $672K |
| JPMorgan Chase & Co. | 0.00% | Add +1226.9% | 212,929 | $641K |
| Group One Trading LLC | 0.02% | Add +107.7% | 211,595 | $637K |
| Shelton Capital Management | 0.01% | No change | 200,300 | $603K |
| Bank of America Corp. | 0.00% | Add +555.0% | 153,294 | $461K |
| G.F.W. Energy XII, L.P. | 89.04% | No change | 118,729 | $357K |
| Ardsley Advisory Partners LP | 0.05% | New | 107,817 | $325K |
| HRT Financial LP | 0.00% | New | 105,663 | $318K |
| SIR Capital Management, L.P. | 0.03% | Reduce -65.6% | 103,178 | $311K |
| Alliancebernstein L.P. | 0.00% | Add +11.2% | 101,680 | $306K |
| Moore Capital Management, LP | 0.01% | No change | 100,000 | $301K |
| Squarepoint Ops LLC | 0.00% | Reduce -41.7% | 98,700 | $297K |
| Bank of New York Mellon Corp | 0.00% | Add +10.8% | 91,360 | $275K |
| Tidal Investments LLC | 0.00% | New | 86,002 | $259K |
| XTX Topco Ltd | 0.01% | Reduce -24.1% | 84,752 | $255K |
| D. E. Shaw & Co. | 0.00% | Add +177.4% | 76,010 | $229K |
| Citadel Advisors | 0.00% | New | 73,044 | $220K |
| Worth Venture Partners, LLC | 1.00% | New | 69,375 | $209K |
| Argentarii, LLC | 0.06% | Add +91.8% | 51,365 | $155K |
| Barclays PLC | 0.00% | Reduce -24.8% | 47,780 | $144K |
| Simplex Trading, LLC | 0.00% | Add +39.0% | 47,571 | $143K |
| Rhumbline Advisers | 0.00% | Reduce -6.3% | 45,332 | $136K |
| Osaic Holdings, Inc. | 0.00% | Add +81.6% | 45,836 | $132K |
| LPL Financial LLC | 0.00% | Reduce -1.4% | 42,275 | $127K |
| Engineers Gate Manager LP | 0.00% | Reduce -15.0% | 39,473 | $119K |
| NorthCoast Asset Management LLC | 0.00% | Add +67.4% | 38,500 | $116K |
| AQR Capital Management | 0.00% | Add +60.2% | 37,449 | $113K |
| Royal Bank of Canada | 0.00% | Add +161.7% | 36,288 | $109K |
| SG Americas Securities, LLC | 0.00% | New | 34,911 | $105K |
| Wells Fargo & Company | 0.00% | Reduce -40.0% | 31,314 | $94K |
| Stonegate Investment Group, LLC | 0.00% | Add +20.0% | 30,000 | $90K |
| Federated Hermes, Inc. | 0.00% | Reduce -51.0% | 29,963 | $90K |
| Verition Fund Management LLC | 0.00% | Reduce -71.1% | 27,337 | $82K |
| Sig Brokerage, LP | 0.02% | Add +50.3% | 24,298 | $73K |
| Deutsche Bank AG | 0.00% | Add +39.2% | 19,565 | $59K |
| Kapstone Financial Advisors LLC | 0.02% | No change | 17,395 | $52K |
| T. Rowe Price Associates Inc. | 0.00% | Add +44.8% | 17,028 | $52K |
| Intech Investment Management LLC | 0.00% | Reduce -12.8% | 17,045 | $51K |
| Legacy Advisors, LLC | 0.01% | — | 16,393 | $49K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -15.0% | 15,742 | $47K |
| Quantbot Technologies LP | 0.00% | New | 12,973 | $39K |
| Sei Investments Co. | 0.00% | No change | 12,854 | $39K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -3.4% | 12,239 | $37K |
| Invesco Ltd. | 0.00% | Add +17.3% | 11,858 | $36K |
| Sanctuary Advisors, LLC | 0.00% | New | 10,735 | $32K |
| Truist Financial Corp. | 0.00% | No change | 10,000 | $30K |
| Janney Montgomery Scott LLC | 0.00% | No change | 10,000 | $30K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 7,826 | $24K |
| AlphaQuest LLC | 0.00% | No change | 6,275 | $19K |
| New York State Common Retirement Fund | 0.00% | No change | 5,100 | $15K |
| Fifth Third Bancorp | 0.00% | No change | 5,000 | $15K |
| Russell Investments Group, Ltd. | 0.00% | Add +149.6% | 4,808 | $14K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 4,252 | $13K |
| Jones Financial Companies LLLP | 0.00% | Add +156.6% | 3,277 | $10K |
| Legal & General Group Plc | 0.00% | No change | 3,095 | $9K |
| Sterling Capital Management LLC | 0.00% | Add +295.1% | 2,343 | $7K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 2,072 | $6K |
| Citigroup Inc. | 0.00% | Reduce -86.0% | 1,761 | $5K |
| Cwm, LLC | 0.00% | Add +18.1% | 1,499 | $5K |
| California State Teachers Retirement System | 0.00% | Add +0.1% | 1,533 | $5K |
| FMR LLC | 0.00% | Reduce -22.6% | 1,475 | $4K |
| Blue Trust, Inc. | 0.00% | No change | 1,390 | $4K |
| Lanark Financial, Inc. | 0.00% | No change | 1,340 | $4K |
| Promus Capital, LLC | 0.00% | No change | 718 | $2K |
| Capital Analysts, LLC | 0.00% | No change | 522 | $2K |
| Amalgamated Bank | 0.00% | No change | 732 | $2K |
| Optiver Holding B.V. | 0.00% | New | 604 | $2K |
| Farther Finance Advisors, LLC | 0.00% | New | 347 | $1K |
| Fortitude Family Office, LLC | 0.00% | No change | 298 | $897 |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -43.6% | 171 | $515 |
| Rockefeller Capital Management L.P. | 0.00% | New | 110 | $331 |
| Versant Capital Management, Inc | 0.00% | New | 103 | $310 |
| Private Wealth Management Group, LLC | 0.00% | No change | 50 | $151 |
| West Oak Capital, LLC | 0.00% | New | 2,500 | $75 |
| Allworth Financial LP | 0.00% | New | 4 | $13 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -71.4% | 2 | $6 |
"% of holder's portfolio" is NPWR's weight in each manager's 13F, not the share of Net Power Inc. the manager owns.