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.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
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