NET Power Inc. - NPWR
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 1 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Worth Venture Partners, LLC | History | Added to | 80,250 | 182,970 | 1.32% | 0.61% | 1 | +10,875 | 15.68% | Q4 2025 | Feb 17, 2026 |
| Share Andrew L. | History | Reduced | 9,767,500 | 22,269 | 11.25% | 20.69% | 2 | -170,000 | -1.71% | Q4 2025 | Feb 13, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 2,276,592 | 5,190 | 0.0% | 0.0% | 3 | -88,654 | -3.75% | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | Added to | 2,017,263 | 4,599 | 0.0% | 0.0% | 4 | +231,669 | 12.97% | Q4 2025 | Jan 29, 2026 |
| BlackRock, Inc. | History | Reduced | 1,995,226 | 4,549 | 0.0% | 0.0% | 5 | -52,554 | -2.57% | Q4 2025 | Feb 12, 2026 |
| CenterBook Partners LP | History | Added to | 1,848,073 | 4,213 | 0.21% | 0.19% | 6 | +599,725 | 48.04% | Q4 2025 | Feb 11, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | Reduced | 1,540,000 | 3,511 | 0.01% | 0.01% | 7 | -969,868 | -38.64% | Q4 2025 | Feb 17, 2026 |
| Sourcerock Group LLC | History | New | 1,496,482 | 3,411 | 0.19% | — | 8 | +1,496,482 | New | Q4 2025 | Feb 13, 2026 |
| PEAK6 LLC | History | Reduced | 1,347,039 | 3,071 | 0.01% | 0.01% | 9 | -116,361 | -7.95% | Q4 2025 | Mar 12, 2026 |
| COHEN & STEERS, INC. | History | Reduced | 944,587 | 2,154 | 0.0% | 0.01% | 10 | -6,124 | -0.64% | Q4 2025 | Feb 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Reduced | 831,547 | 1,896 | 0.0% | 0.0% | 11 | -42,972 | -4.91% | Q4 2025 | Feb 09, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 802,960 | 1,830 | 0.0% | 0.0% | 12 | +466,165 | 138.41% | Q4 2025 | Feb 12, 2026 |
| HITE Hedge Asset Management LLC | History | Reduced | 749,091 | 1,707 | 0.11% | 0.16% | 13 | -227,337 | -23.28% | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 728,459 | 1,660 | 0.0% | 0.0% | 14 | -93,334 | -11.36% | Q4 2025 | Feb 17, 2026 |
| Nuveen, LLC | History | No change | 702,391 | 1,601 | 0.0% | 0.0% | 15 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| STATE STREET CORP | History | Added to | 603,694 | 1,376 | 0.0% | 0.0% | 16 | +9,001 | 1.51% | Q4 2025 | Feb 13, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 457,099 | 1,042 | 0.0% | 0.0% | 17 | -455,958 | -49.94% | Q4 2025 | Feb 17, 2026 |
| Empowered Funds, LLC | History | Added to | 444,734 | 1,013 | 0.02% | 0.01% | 18 | +221,530 | 99.25% | Q4 2025 | Feb 18, 2026 |
| MORGAN STANLEY | History | Reduced | 303,697 | 692 | 0.0% | 0.0% | 20 | -632,671 | -67.57% | Q4 2025 | Feb 13, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 303,662 | 692 | 0.0% | 0.0% | 19 | +25,237 | 9.06% | Q4 2025 | Mar 25, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | New | 300,545 | 685 | 0.01% | — | 21 | +300,545 | New | Q4 2025 | Feb 17, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | History | Reduced | 274,327 | 625 | 0.0% | 0.0% | 22 | -242,181 | -46.89% | Q4 2025 | Feb 17, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Reduced | 268,044 | 611 | 0.0% | 0.0% | 23 | -247 | -0.09% | Q4 2025 | Feb 13, 2026 |
| Argentarii, LLC | History | Added to | 263,507 | 600 | 0.2% | 0.06% | 24 | +212,142 | 413.01% | Q4 2025 | Jan 13, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 254,014 | 579 | 0.0% | 0.0% | 25 | -1,903 | -0.74% | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | History | New | 240,972 | 549 | 0.0% | — | 26 | +240,972 | New | Q4 2025 | Feb 17, 2026 |
| Tidal Investments LLC | History | Added to | 234,245 | 534 | 0.0% | 0.0% | 27 | +148,243 | 172.37% | Q4 2025 | Feb 13, 2026 |
| SHELTON CAPITAL MANAGEMENT | History | No change | 200,300 | 456 | 0.01% | 0.01% | 28 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 187,666 | 427 | 0.0% | 0.0% | 29 | -149,166 | -44.28% | Q4 2025 | Feb 12, 2026 |
| Janney Montgomery Scott LLC | History | Added to | 120,649 | 275 | 0.0% | 0.0% | 30 | +110,649 | 1106.49% | Q4 2025 | Feb 11, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 110,700 | 252 | 0.0% | 0.0% | 31 | -93,244 | -45.72% | Q4 2025 | Feb 17, 2026 |
| SIR Capital Management, L.P. | History | No change | 103,178 | 235 | 0.03% | 0.03% | 32 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA ADVISERS, LP | History | Reduced | 102,400 | 233 | 0.0% | 0.0% | 33 | -139,500 | -57.67% | Q4 2025 | Feb 17, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | No change | 101,680 | 231 | 0.0% | 0.0% | 34 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | New | 94,600 | 215 | 0.0% | — | 35 | +94,600 | New | Q4 2025 | Feb 12, 2026 |
| Caption Management, LLC | History | Reduced | 86,228 | 196 | 0.0% | 0.01% | 36 | -259,244 | -75.04% | Q4 2025 | Feb 17, 2026 |
| TUDOR INVESTMENT CORP ET AL | History | New | 84,887 | 193 | 0.0% | — | 37 | +84,887 | New | Q4 2025 | Feb 17, 2026 |
| MOORE CAPITAL MANAGEMENT, LP | History | Reduced | 85,000 | 193 | 0.0% | 0.0% | 38 | -15,000 | -15.0% | Q4 2025 | Feb 17, 2026 |
| Bank of New York Mellon Corp | History | Reduced | 84,167 | 191 | 0.0% | 0.0% | 39 | -7,193 | -7.87% | Q4 2025 | Feb 10, 2026 |
| FEDERATED HERMES, INC. | History | Added to | 79,026 | 180 | 0.0% | 0.0% | 40 | +49,063 | 163.75% | Q4 2025 | Feb 12, 2026 |
| D. E. Shaw & Co., Inc. | History | Added to | 77,681 | 177 | 0.0% | 0.0% | 41 | +1,671 | 2.2% | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | Reduced | 64,496 | 147 | 0.0% | 0.0% | 42 | -365,956 | -85.02% | Q4 2025 | Jan 29, 2026 |
| Quantbot Technologies LP | History | Added to | 60,215 | 137 | 0.0% | 0.0% | 43 | +47,242 | 364.16% | Q4 2025 | Feb 10, 2026 |
| Graham Capital Management, L.P. | History | New | 59,786 | 136 | 0.0% | — | 44 | +59,786 | New | Q4 2025 | Feb 17, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | Added to | 56,598 | 129 | 0.0% | 0.0% | 45 | +19,149 | 51.13% | Q4 2025 | Feb 17, 2026 |
| Atom Investors LP | History | New | 55,094 | 125 | 0.01% | — | 46 | +55,094 | New | Q4 2025 | Feb 17, 2026 |
| BARCLAYS PLC | History | Added to | 54,750 | 124 | 0.0% | 0.0% | 47 | +6,970 | 14.59% | Q4 2025 | Feb 13, 2026 |
| WELLS FARGO & COMPANY/MN | History | Added to | 49,245 | 112 | 0.0% | 0.0% | 48 | +17,931 | 57.26% | Q4 2025 | Feb 13, 2026 |
| XTX Topco Ltd | History | Reduced | 48,802 | 111 | 0.0% | 0.01% | 49 | -35,950 | -42.42% | Q4 2025 | Feb 17, 2026 |
| RHUMBLINE ADVISERS | History | Reduced | 44,128 | 100 | 0.0% | 0.0% | 50 | -1,204 | -2.66% | Q4 2025 | Feb 13, 2026 |
| Polymer Capital Management (US) LLC | History | New | 42,155 | 96 | 0.01% | — | 52 | +42,155 | New | Q4 2025 | Feb 17, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 42,235 | 96 | 0.0% | 0.0% | 51 | -3,601 | -7.86% | Q4 2025 | Feb 17, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 40,985 | 93 | 0.0% | 0.0% | 53 | -190,310 | -82.28% | Q4 2025 | Feb 12, 2026 |
| LPL Financial LLC | History | Reduced | 40,775 | 92 | 0.0% | 0.0% | 54 | -1,500 | -3.55% | Q4 2025 | Feb 11, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 32,809 | 74 | 0.0% | 0.0% | 55 | -180,120 | -84.59% | Q4 2025 | Feb 11, 2026 |
| Engineers Gate Manager LP | History | Reduced | 32,522 | 74 | 0.0% | 0.0% | 56 | -6,951 | -17.61% | Q4 2025 | Feb 17, 2026 |
| SIG BROKERAGE, LP | History | Added to | 31,942 | 72 | 0.0% | 0.0% | 57 | +7,644 | 31.46% | Q4 2025 | Feb 17, 2026 |
| Verition Fund Management LLC | History | Added to | 30,321 | 69 | 0.0% | 0.0% | 58 | +2,984 | 10.92% | Q4 2025 | Feb 13, 2026 |
| Kovitz Investment Group Partners, LLC | History | Reduced | 26,380 | 60 | 0.0% | 0.0% | 59 | -12,120 | -31.48% | Q4 2025 | Feb 20, 2026 |
| Family Manage LLC | History | New | 26,222 | 59 | 0.01% | — | 60 | +26,222 | New | Q4 2025 | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 25,049 | 57 | 0.0% | 0.0% | 61 | -128,245 | -83.66% | Q4 2025 | Feb 17, 2026 |
| Jain Global LLC | History | New | 25,029 | 57 | 0.0% | — | 62 | +25,029 | New | Q4 2025 | Feb 17, 2026 |
| TWO SIGMA SECURITIES, LLC | History | New | 21,454 | 48 | 0.01% | — | 63 | +21,454 | New | Q4 2025 | Feb 17, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 19,565 | 44 | 0.0% | 0.0% | 64 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| THOMPSON DAVIS & CO., INC. | History | New | 18,111 | 41 | 0.02% | — | 65 | +18,111 | New | Q4 2025 | Jan 12, 2026 |
| INTEGRITY ALLIANCE, LLC. | History | New | 17,400 | 39 | 0.0% | — | 67 | +17,400 | New | Q4 2025 | Feb 09, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | No change | 17,028 | 39 | 0.0% | 0.0% | 66 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Kapstone Financial Advisors LLC | History | No change | 17,395 | 39 | 0.02% | 0.02% | 68 | 0 | 0.0% | Q4 2025 | Feb 05, 2026 |
| Legacy Advisors, LLC | History | No change | 16,393 | 37 | 0.0% | 0.01% | 69 | 0 | 0.0% | Q4 2025 | Jan 27, 2026 |
| INTECH INVESTMENT MANAGEMENT LLC | History | Reduced | 14,734 | 33 | 0.0% | 0.0% | 70 | -2,311 | -13.56% | Q4 2025 | Feb 10, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Reduced | 14,629 | 33 | 0.0% | 0.0% | 71 | -1,113 | -7.07% | Q4 2025 | Feb 17, 2026 |
| SEI INVESTMENTS CO | History | No change | 12,854 | 29 | 0.0% | 0.0% | 72 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| SIMPLEX TRADING, LLC | History | Reduced | 12,400 | 28 | 0.0% | 0.0% | 73 | -52,471 | -80.89% | Q4 2025 | Feb 11, 2026 |
| Invesco Ltd. | History | Reduced | 11,583 | 26 | 0.0% | 0.0% | 74 | -275 | -2.32% | Q4 2025 | Feb 19, 2026 |
| Schonfeld Strategic Advisors LLC | History | New | 11,179 | 25 | 0.0% | — | 75 | +11,179 | New | Q4 2025 | Feb 17, 2026 |
| CAPTRUST FINANCIAL ADVISORS | History | New | 10,014 | 22 | 0.0% | — | 77 | +10,014 | New | Q4 2025 | Feb 17, 2026 |
| TRUIST FINANCIAL CORP | History | No change | 10,000 | 22 | 0.0% | 0.0% | 76 | 0 | 0.0% | Q4 2025 | Feb 02, 2026 |
| LMR Partners LLP | History | New | 9,051 | 20 | 0.0% | — | 78 | +9,051 | New | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 7,174 | 16 | 0.0% | 0.0% | 80 | -5,065 | -41.38% | Q4 2025 | Feb 17, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | Reduced | 7,020 | 16 | 0.0% | 0.0% | 79 | -806 | -10.3% | Q4 2025 | Jan 15, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 6,426 | 14 | 0.0% | — | 82 | +6,426 | New | Q4 2025 | Mar 03, 2026 |
| AlphaQuest LLC | History | No change | 6,275 | 14 | 0.0% | 0.0% | 81 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| ROYAL BANK OF CANADA | History | New | 5,053 | 12 | 0.0% | — | 83 | +5,053 | New | Q4 2025 | Feb 17, 2026 |
| Strive Financial Group ,LLC | History | New | 5,000 | 11 | 0.01% | — | 88 | +5,000 | New | Q4 2025 | Feb 18, 2026 |
| FMR LLC | History | Added to | 4,948 | 11 | 0.0% | 0.0% | 85 | +3,473 | 235.46% | Q4 2025 | Feb 17, 2026 |
| Russell Investments Group, Ltd. | History | Added to | 4,876 | 11 | 0.0% | 0.0% | 87 | +68 | 1.41% | Q4 2025 | Feb 17, 2026 |
| FIFTH THIRD BANCORP | History | No change | 5,000 | 11 | 0.0% | 0.0% | 84 | 0 | 0.0% | Q4 2025 | Feb 02, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 5,100 | 11 | 0.0% | 0.0% | 86 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 4,252 | 9 | 0.0% | 0.0% | 89 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| CWM, LLC | History | Added to | 2,852 | 7 | 0.0% | 0.0% | 92 | +1,353 | 90.26% | Q4 2025 | Jan 26, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Reduced | 3,077 | 7 | 0.0% | 0.0% | 91 | -200 | -6.1% | Q4 2025 | Feb 17, 2026 |
| Legal & General Group Plc | History | No change | 3,095 | 7 | 0.0% | 0.0% | 90 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| EQ WEALTH ADVISORS, LLC | History | New | 2,786 | 6 | 0.0% | — | 93 | +2,786 | New | Q4 2025 | Feb 02, 2026 |
| Sterling Capital Management LLC | History | Reduced | 1,812 | 4 | 0.0% | 0.0% | 96 | -531 | -22.66% | Q4 2025 | Feb 13, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Added to | 1,929 | 4 | 0.0% | 0.0% | 95 | +396 | 25.83% | Q4 2025 | Feb 17, 2026 |
| Ameritas Investment Partners, Inc. | History | No change | 2,072 | 4 | 0.0% | 0.0% | 94 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| NBC SECURITIES, INC. | History | No change | 1,340 | 3 | 0.0% | 0.0% | 97 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| Blue Trust, Inc. | History | No change | 1,390 | 3 | 0.0% | 0.0% | 98 | 0 | 0.0% | Q4 2025 | Jan 16, 2026 |
| McMillan Office, Inc. | History | New | 1,000 | 2 | 0.0% | — | 101 | +1,000 | New | Q4 2025 | Feb 12, 2026 |
| CITIGROUP INC | History | Reduced | 901 | 2 | 0.0% | 0.0% | 99 | -860 | -48.84% | Q4 2025 | Feb 13, 2026 |
| AMALGAMATED BANK | History | Added to | 988 | 2 | 0.0% | 0.0% | 100 | +256 | 34.97% | Q4 2025 | Feb 05, 2026 |
| SJS Investment Consulting Inc. | History | New | 527 | 1 | 0.0% | — | 104 | +527 | New | Q4 2025 | Jan 21, 2026 |
| Capital Analysts, LLC | History | No change | 522 | 1 | 0.0% | 0.0% | 102 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Optiver Holding B.V. | History | No change | 604 | 1 | 0.0% | 0.0% | 103 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Walleye Capital LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -284,932 | -100.0% | Q3 2025 | Nov 14, 2025 |
| ARDSLEY ADVISORY PARTNERS LP | History | Closed out | 0 | 0 | — | 0.04% | — | -107,817 | -100.0% | Q3 2025 | Nov 14, 2025 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -105,663 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Squarepoint Ops LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -98,700 | -100.0% | Q3 2025 | Nov 14, 2025 |
| SG Americas Securities, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -34,911 | -100.0% | Q3 2025 | Oct 23, 2025 |
| GAMMA Investing LLC | History | New | 309 | 0 | — | — | — | +309 | New | Q4 2025 | Jan 05, 2026 |
| Farther Finance Advisors, LLC | History | Reduced | 103 | 0 | — | 0.0% | — | -244 | -70.32% | Q4 2025 | Jan 23, 2026 |
| Clearstead Advisors, LLC | History | New | 189 | 0 | — | — | — | +189 | New | Q4 2025 | Feb 09, 2026 |
| Rockefeller Capital Management L.P. | History | Closed out | 0 | 0 | — | — | — | -110 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Versant Capital Management, Inc | History | Closed out | 0 | 0 | — | — | — | -103 | -100.0% | Q3 2025 | Oct 27, 2025 |
| Allworth Financial LP | History | New | 60 | 0 | — | — | — | +60 | New | Q4 2025 | Feb 05, 2026 |
| EverSource Wealth Advisors, LLC | History | Reduced | 147 | 0 | — | — | — | -24 | -14.04% | Q4 2025 | Feb 06, 2026 |
| True Wealth Design, LLC | History | New | 14 | 0 | — | — | — | +14 | New | Q4 2025 | Jan 08, 2026 |
| ROTHSCHILD INVESTMENT LLC | History | New | 13 | 0 | — | — | — | +13 | New | Q4 2025 | Feb 10, 2026 |
| SBI Securities Co., Ltd. | History | Added to | 5 | 0 | — | — | — | +3 | 150.0% | Q4 2025 | Feb 03, 2026 |
| IFP Advisors, Inc | History | New | 1 | 0 | — | — | — | +1 | New | Q4 2025 | Feb 06, 2026 |
| Fortitude Family Office, LLC | History | No change | 298 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 15, 2026 |
| Private Wealth Management Group, LLC | History | No change | 50 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 23, 2026 |