Net Power Inc. (NPWR) — Institutional Holders, Q2 2026
121 institutional investment managers reported a NPWR position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $64.1M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
NPWR in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- ADAGE CAPITAL PARTNERS GP, L.L.C.Added · +1,300,000 sh+$2.2M
- Defiance ETFsAdded · +1,022,584 sh+$1.7M
- Toroso InvestmentsAdded · +1,013,309 sh+$1.7M
- GSA CAPITAL PARTNERS LLPAdded · +665,056 sh+$1.1M
- BlackRockAdded · +273,378 sh+$456.5K
Biggest sellers
- MILLENNIUM MANAGEMENTTrimmed · -644,861 sh-$1.1M
- CenterBook PartnersSold out · -437,771 sh-$731.1K
- NuveenTrimmed · -424,884 sh-$709.6K
- TWO SIGMA INVESTMENTSTrimmed · -419,711 sh-$700.9K
- RENAISSANCE TECHNOLOGIESTrimmed · -349,594 sh-$583.8K
NPWR 13F holders ranked 1–100 of 121
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Share Andrew L.#1 · 9,767,500 sh | 9,767,500 | $16.3M | 8.43% | 0.0% |
| 2 | HITE Hedge Asset Management#2 · 2,852,670 sh | 2,852,670 | $4.8M | 0.26% | +3.2% |
| 3 | ADAGE CAPITAL PARTNERS GP, L.L.C.#3 · 2,840,000 sh | 2,840,000 | $4.7M | <0.01% | +84.4% |
| 4 | BlackRock#4 · 2,416,294 sh | 2,416,294 | $4.0M | <0.01% | +12.8% |
| 5 | PEAK6#5 · 1,985,754 sh | 1,985,754 | $3.3M | <0.01% | -0.1% |
| 6 | VANGUARD CAPITAL MANAGEMENT#6 · 1,802,372 sh | 1,802,372 | $3.0M | <0.01% | +9.6% |
| 7 | Defiance ETFs#7 · 1,555,837 sh | 1,555,837 | $2.6M | 0.04% | +191.8% |
| 8 | Toroso Investments#8 · 1,546,562 sh | 1,546,562 | $2.6M | <0.01% | +190.0% |
| 9 | Sourcerock Group#9 · 1,400,110 sh | 1,400,110 | $2.3M | 0.12% | -6.9% |
| 10 | GEODE CAPITAL MANAGEMENT#10 · 1,006,014 sh | 1,006,014 | $1.7M | <0.01% | +16.9% |
| 11 | COHEN & STEERS#11 · 888,954 sh | 888,954 | $1.5M | <0.01% | -0.4% |
| 12 | GSA CAPITAL PARTNERS LLP#12 · 851,296 sh | 851,296 | $1.4M | 0.09% | +357.1% |
| 13 | Argentarii#13 · 746,799 sh | 746,799 | $1.2M | 0.36% | -0.2% |
| 14 | TWO SIGMA INVESTMENTS#14 · 660,570 sh | 660,570 | $1.1M | <0.01% | -38.9% |
| 15 | STATE STREET#15 · 624,238 sh | 624,238 | $1.0M | 0.00% | +1.7% |
| 16 | UBS Group AG#16 · 610,961 sh | 610,961 | $1.0M | <0.01% | +65.2% |
| 17 | D. E. Shaw#17 · 412,502 sh | 412,502 | $688.9K | <0.01% | +75.2% |
| 18 | TUDOR INVESTMENT ET AL#18 · 397,515 sh | 397,515 | $663.9K | <0.01% | -7.8% |
| 19 | AQR CAPITAL MANAGEMENT#19 · 385,283 sh | 385,283 | $643.4K | <0.01% | +151.0% |
| 20 | RENAISSANCE TECHNOLOGIES#20 · 354,206 sh | 354,206 | $591.5K | <0.01% | -49.7% |
| 21 | NORTHERN#21 · 334,814 sh | 334,814 | $559.1K | <0.01% | +14.7% |
| 22 | VANGUARD PORTFOLIO MANAGEMENT#22 · 324,611 sh | 324,611 | $542.1K | 0.00% | +22.6% |
| 23 | Nuveen#23 · 288,876 sh | 288,876 | $482.4K | <0.01% | -59.5% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT#24 · 288,276 sh | 288,276 | $481.4K | <0.01% | +7.0% |
| 25 | VANGUARD FIDUCIARY#25 · 282,441 sh | 282,441 | $471.7K | <0.01% | +13.4% |
| 26 | MORGAN STANLEY#26 · 270,736 sh | 270,736 | $452.1K | 0.00% | +47.3% |
| 27 | BOOTHBAY FUND MANAGEMENT#27 · 263,298 sh | 263,298 | $439.7K | <0.01% | -11.0% |
| 28 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#28 · 261,027 sh | 261,027 | $435.9K | 0.00% | +52.3% |
| 29 | FEDERATED HERMES#29 · 248,208 sh | 248,208 | $414.5K | <0.01% | +2.7% |
| 30 | SHELTON CAPITAL MANAGEMENT#30 · 200,300 sh | 200,300 | $334.5K | <0.01% | 0.0% |
| 31 | DIMENSIONAL FUND ADVISORS#31 · 163,443 sh | 163,443 | $272.9K | 0.00% | +58.5% |
| 32 | GOLDMAN SACHS GROUP#32 · 151,365 sh | 151,365 | $252.8K | 0.00% | -41.9% |
| 33 | SUSQUEHANNA FUNDAMENTAL INVESTMENTS#33 · 141,882 sh | 141,882 | $236.9K | <0.01% | -22.9% |
| 34 | Janney Montgomery Scott#34 · 133,000 sh | 133,000 | $222.0K | <0.01% | 0.0% |
| 35 | Caption Management#35 · 122,452 sh | 122,452 | $204.5K | <0.01% | +516.0% |
| 36 | ALLIANCEBERNSTEIN L.P.#36 · 117,680 sh | 117,680 | $183.6K | <0.01% | +15.7% |
| 37 | SIR Capital Management, L.P.#37 · 109,651 sh | 109,651 | $183.1K | 0.02% | +6.3% |
| 38 | LOS ANGELES CAPITAL MANAGEMENT#38 · 96,430 sh | 96,430 | $161.0K | <0.01% | New |
| 39 | MOORE CAPITAL MANAGEMENT#39 · 85,000 sh | 85,000 | $141.9K | <0.01% | 0.0% |
| 40 | Bank of New York Mellon#40 · 83,821 sh | 83,821 | $140.0K | 0.00% | -0.3% |
| 41 | SIMPLEX TRADING#41 · 77,604 sh | 77,604 | $129.6K | <0.01% | New |
| 42 | XTX Topco Ltd#42 · 73,944 sh | 73,944 | $123.5K | <0.01% | +511.6% |
| 43 | HRT FINANCIAL#43 · 60,620 sh | 60,620 | $101.0K | <0.01% | New |
| 44 | LPL Financial#44 · 57,074 sh | 57,074 | $95.3K | 0.00% | +7.6% |
| 45 | DEUTSCHE BANK AG\#45 · 56,064 sh | 56,064 | $93.6K | 0.00% | +3.5% |
| 46 | Qube Research & Technologies Ltd#46 · 55,825 sh | 55,825 | $93.2K | <0.01% | +52.6% |
| 47 | RHUMBLINE ADVISERS#47 · 53,919 sh | 53,919 | $90.0K | <0.01% | +9.8% |
| 48 | IMC-Chicago#48 · 41,449 sh | 41,449 | $69.2K | 0.00% | New |
| 49 | OSAIC#49 · 40,785 sh | 40,785 | $68.1K | <0.01% | -0.5% |
| 50 | MILLENNIUM MANAGEMENT#50 · 37,844 sh | 37,844 | $63.2K | 0.00% | -94.5% |
| 51 | WELLS FARGO & COMPANY#51 · 35,383 sh | 35,383 | $59.1K | 0.00% | +22.8% |
| 52 | Jain Global#52 · 34,819 sh | 34,819 | $58.1K | <0.01% | New |
| 53 | Russell Investments Group, Ltd.#53 · 33,503 sh | 33,503 | $55.9K | 0.00% | +1091.4% |
| 54 | SIG BROKERAGE#54 · 31,942 sh | 31,942 | $53.3K | <0.01% | 0.0% |
| 55 | CANADA PENSION PLAN INVESTMENT BOARD#55 · 29,700 sh | 29,700 | $49.6K | 0.00% | New |
| 56 | LMR Partners LLP#56 · 28,794 sh | 28,794 | $48.1K | <0.01% | -19.7% |
| 57 | Quadrature Capital Ltd#57 · 26,934 sh | 26,934 | $45.0K | <0.01% | New |
| 58 | BANK OF AMERICA#58 · 26,930 sh | 26,930 | $45.0K | 0.00% | -23.2% |
| 59 | Virtu Financial#59 · 26,027 sh | 26,027 | $43.0K | <0.01% | New |
| 60 | TWO SIGMA SECURITIES#60 · 22,060 sh | 22,060 | $36.8K | <0.01% | New |
| 61 | Invesco Ltd.#61 · 22,043 sh | 22,043 | $36.8K | 0.00% | +95.3% |
| 62 | CAPTRUST FINANCIAL ADVISORS#62 · 19,846 sh | 19,846 | $33.1K | <0.01% | +37.6% |
| 63 | CITIGROUP#63 · 19,652 sh | 19,652 | $32.8K | 0.00% | +1139.1% |
| 64 | MIRAE ASSET GLOBAL ETFS Ltd.#64 · 19,454 sh | 19,454 | $32.5K | 0.00% | +28.7% |
| 65 | Polymer Capital Management (US)#65 · 18,731 sh | 18,731 | $31.3K | <0.01% | -63.2% |
| 66 | GROUP ONE TRADING, L.P.#66 · 18,672 sh | 18,672 | $31.2K | 0.00% | +26.4% |
| 67 | Mariner#67 · 18,552 sh | 18,552 | $31.0K | 0.00% | New |
| 68 | JPMORGAN CHASE#68 · 18,211 sh | 18,211 | $30.4K | 0.00% | +7.7% |
| 69 | INTEGRITY ALLIANCE#69 · 17,400 sh | 17,400 | $29.1K | <0.01% | 0.0% |
| 70 | Kapstone Financial Advisors#70 · 17,395 sh | 17,395 | $29.1K | 0.01% | 0.0% |
| 71 | PRICE T ROWE ASSOCIATES#71 · 17,028 sh | 17,028 | $29.0K | 0.00% | 0.0% |
| 72 | Legacy Advisors#72 · 16,413 sh | 16,413 | $27.4K | — | +0.1% |
| 73 | Engineers Gate Manager#73 · 16,261 sh | 16,261 | $27.2K | <0.01% | -47.5% |
| 74 | IEQ CAPITAL#74 · 16,207 sh | 16,207 | $27.1K | <0.01% | New |
| 75 | MERCER GLOBAL ADVISORS#75 · 16,047 sh | 16,047 | $26.8K | 0.00% | New |
| 76 | Point72 Asset Management, L.P.#76 · 15,340 sh | 15,340 | $25.6K | 0.00% | -55.0% |
| 77 | SEI INVESTMENTS#77 · 12,854 sh | 12,854 | $21.5K | 0.00% | 0.0% |
| 78 | WEALTH ENHANCEMENT ADVISORY SERVICES#78 · 13,528 sh | 13,528 | $21.1K | — | New |
| 79 | ROYAL BANK OF CANADA#79 · 12,831 sh | 12,831 | $21.0K | 0.00% | +187.2% |
| 80 | Creative Planning#80 · 12,217 sh | 12,217 | $20.4K | 0.00% | New |
| 81 | Private Advisor Group#81 · 12,200 sh | 12,200 | $20.4K | <0.01% | 0.0% |
| 82 | Vanguard Global Advisers#82 · 12,172 sh | 12,172 | $20.3K | 0.00% | 0.0% |
| 83 | AIGEN INVESTMENT MANAGEMENT#83 · 11,812 sh | 11,812 | $19.7K | <0.01% | New |
| 84 | Cambridge Investment Research Advisors#84 · 11,339 sh | 11,339 | $19.0K | 0.00% | New |
| 85 | Focus Partners Wealth#85 · 10,863 sh | 10,863 | $18.1K | 0.00% | New |
| 86 | INTECH INVESTMENT MANAGEMENT#86 · 10,786 sh | 10,786 | $18.0K | <0.01% | 0.0% |
| 87 | TRUIST FINANCIAL#87 · 10,000 sh | 10,000 | $16.7K | 0.00% | 0.0% |
| 88 | BARCLAYS PLC#88 · 8,948 sh | 8,948 | $14.9K | 0.00% | +1.2% |
| 89 | SRS Capital Advisors#89 · 8,943 sh | 8,943 | $14.9K | <0.01% | +7290.9% |
| 90 | Integrated Wealth Concepts#90 · 7,372 sh | 7,372 | $12.3K | <0.01% | New |
| 91 | Tower Research Capital (TRC)#91 · 7,332 sh | 7,332 | $12.2K | <0.01% | -31.0% |
| 92 | NBC SECURITIES#92 · 6,340 sh | 6,340 | $10.6K | — | 0.0% |
| 93 | NEW YORK STATE COMMON RETIREMENT FUND#93 · 5,100 sh | 5,100 | $8.5K | 0.00% | 0.0% |
| 94 | FIFTH THIRD BANCORP#94 · 5,000 sh | 5,000 | $8.3K | 0.00% | 0.0% |
| 95 | Police & Firemen's Retirement System of New Jersey#95 · 4,252 sh | 4,252 | $7.1K | <0.01% | 0.0% |
| 96 | Legal & General Group Plc#96 · 3,095 sh | 3,095 | $5.2K | 0.00% | 0.0% |
| 97 | Quarry#97 · 2,257 sh | 2,257 | $3.8K | <0.01% | New |
| 98 | Ameritas Investment Partners#98 · 2,072 sh | 2,072 | $3.5K | <0.01% | 0.0% |
| 99 | FMR#99 · 1,951 sh | 1,951 | $3.3K | 0.00% | -4.5% |
| 100 | JONES FINANCIAL COMPANIES LLLP#100 · 1,800 sh | 1,800 | $3.0K | 0.00% | -41.5% |
Funds that sold out of NPWR in Q2 2026 (10)
Held NPWR at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| CenterBook Partners437,771 sh | 437,771 | $682.9K |
| CITADEL ADVISORS218,981 sh | 218,981 | $341.6K |
| Squarepoint Ops166,242 sh | 166,242 | $259.3K |
| Empowered Funds155,000 sh | 155,000 | $241.8K |
| JANE STREET GROUP52,548 sh | 52,548 | $82.0K |
| Family Management26,233 sh | 26,233 | $40.9K |
| OXFORD ASSET MANAGEMENT LLP19,566 sh | 19,566 | $30.5K |
| SUMMIT SECURITIES GROUP19,263 sh | 19,263 | $30.1K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE12,447 sh | 12,447 | $19.4K |
| MAI Capital Management21 sh | 21 | $33.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.