NET POWER INC (NPWRWS)
Institutional ownership reported to the SEC as of Q2 2026, across 13 quarters.
26
Reporting holders
$3.6M
Reported value
8.6%
Calls
1.8%
Puts
-2
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Share Andrew L. | $1.5M | 5,342,547 | 0.80% | 13q | HELD |
| LMR Partners LLP | $494.5K | 1,705,116 | 0.00% | 10q | +0.8%+$3.9K |
| ZAZOVE ASSOCIATES LLC | $475.4K | 1,533,692 | 0.04% | 12q | HELD |
| SIMPLEX TRADING, LLC | $132.3K | options only | 0.00% | 11q | OPTIONS |
| KENSICO CAPITAL MANAGEMENT CORP | $131.6K | 453,800 | 0.00% | 13q | HELD |
| BOOTHBAY FUND MANAGEMENT, LLC | $129.2K | 77,370? | 0.00% | 7q | |
| GROUP ONE TRADING LLC | $96.0K | options only | 0.00% | 7q | OPTIONS |
| IMC-Chicago, LLC | $80.8K | options only | 0.00% | 2q | OPTIONS |
| TORONTO DOMINION BANK | $80.6K | 278,099 | 0.00% | 5q | HELD |
| MILLENNIUM MANAGEMENT LLC | $63.4K | options only | 0.00% | 13q | OPTIONS |
| Saba Capital Management, L.P. | $56.1K | 180,984 | 0.00% | 8q | HELD |
| COHEN & STEERS, INC. | $53.0K | 182,834 | 0.00% | 13q | -5.6%-$3.1K |
| WOLVERINE ASSET MANAGEMENT LLC | $49.0K | 168,890 | 0.00% | 13q | +35.2%+$12.8K |
| ARISTEIA CAPITAL, L.L.C. | $34.7K | 111,888 | 0.00% | 7q | HELD |
| Caption Management, LLC | $33.2K | 114,375 | 0.00% | 4q | HELD |
| Arosa Capital Management LP | $30.8K | 106,249 | 0.01% | 13q | HELD |
| MOORE CAPITAL MANAGEMENT, LP | $29.0K | 100,000 | 0.00% | 13q | HELD |
| K2 PRINCIPAL FUND, L.P. | $13.4K | 46,181 | 0.00% | 7q | HELD |
| Thomas J. Herzfeld Advisors, Inc. | $9.5K | 32,771 | 0.00% | 13q | HELD |
| Ionic Capital Management LLC | $8.4K | 29,036 | 0.00% | 6q | -82.8%-$40.6K |
| Teilinger Capital Ltd. | $7.2K | 25,000 | 0.00% | 13q | HELD |
| D. E. Shaw & Co., Inc. | $4.4K | 15,032 | 0.00% | 13q | HELD |
| Dynamic Advisor Solutions LLC | $3.0K | 10,400 | 0.00% | 5q | HELD |
| UBS Group AG | $137 | 474 | 0.00% | 3q | -94.9%-$2.6K |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $109 | 375 | 0.00% | 13q | HELD |
| Clear Street Group Inc. | $58 | 200 | 0.00% | 3q | HELD |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 26 | $3.6M | 10,515,313 | 0 | 2 | 3 | 10.4% |
| Q1 2026 | 28 | $3.2M | 9,140,437 | 3 | 3 | 2 | 18.7% |
| Q4 2025 | 27 | $6.2M | 10,629,801 | 2 | 3 | 5 | 10.8% |
| Q3 2025 | 27 | $9.3M | 10,531,267 | 2 | 2 | 5 | 13.3% |
| Q2 2025 | 27 | $4.7M | 10,609,550 | 3 | 3 | 2 | 20.6% |
| Q1 2025 | 28 | $3.8M | 10,616,591 | 3 | 6 | 3 | 10.0% |
| Q4 2024 | 27 | $39.1M | 9,778,374 | 6 | 1 | 4 | 9.1% |
| Q3 2024 | 29 | $11.5M | 8,998,873 | 1 | 2 | 7 | 7.4% |
| Q2 2024 | 31 | $26.6M | 10,729,159 | 2 | 5 | 4 | 5.0% |
| Q1 2024 | 31 | $33.6M | 10,773,052 | 5 | 4 | 4 | 3.4% |
| Q4 2023 | 32 | $22.7M | 9,569,645 | 5 | 6 | 3 | 3.5% |
| Q3 2023 | 31 | $43.2M | 9,336,108 | 3 | 6 | 6 | 3.7% |
| Q2 2023 | 36 | $18.3M | 4,713,272 | 35 | 0 | 0 | 7.6% |