Who owns Net Power Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of NPWR from SEC Form 13F filings across 122 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 122 institutions disclosed 38.7M shares of Net Power Inc. worth $61.3M — about 43.8% of shares outstanding; the largest disclosed holder is Share Andrew L.. Source: SEC Form 13F filings, parsed by EvidInvest.
122
13F holders
$61.3M
value, 2026 filers
43.8%
of shares outstanding (38.7M sh)
22
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of NPWR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Share Andrew L. | 9.8M | $16.3M | 8.4% | 11% | 0.0% |
| 2 | HITE Hedge Asset Management LLC | 2.9M | $4.8M | 0.3% | 3.2% | +3.2% |
| 3 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 2.8M | $4.7M | 0.0% | 3.2% | +84.4% |
| 4 | BlackRock, Inc. | 2.4M | $4.0M | 0.0% | 2.7% | +12.8% |
| 5 | PEAK6 LLC | 2.0M | $3.3M | 0.0% | 2.2% | -0.1% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.8M | $3.0M | 0.0% | 2% | +9.6% |
| 7 | Defiance ETFs, LLC | 1.6M | $2.6M | 0.0% | 1.8% | +191.8% |
| 8 | Tidal Investments LLC | 1.5M | $2.6M | 0.0% | 1.7% | +190.0% |
| 9 | Sourcerock Group LLC | 1.4M | $2.3M | 0.1% | 1.6% | -6.9% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1.0M | $1.7M | 0.0% | 1.1% | +16.9% |
| 11 | COHEN & STEERS, INC. | 888,954 | $1,485 | 0.0% | 1% | -0.4% |
| 12 | GSA CAPITAL PARTNERS LLP | 851,296 | $1,422 | 0.1% | 1% | +357.1% |
| 13 | Argentarii, LLC | 746,799 | $1.2M | 0.4% | 0.8% | -0.2% |
| 14 | TWO SIGMA INVESTMENTS, LP | 660,570 | $1.1M | 0.0% | 0.7% | -38.9% |
| 15 | STATE STREET CORP | 624,238 | $1.0M | 0.0% | 0.7% | +1.7% |
| 16 | UBS Group AG | 610,961 | $1.0M | 0.0% | 0.7% | +65.2% |
| 17 | D. E. Shaw & Co., Inc. | 412,502 | $688,878 | 0.0% | 0.5% | +75.2% |
| 18 | TUDOR INVESTMENT CORP ET AL | 397,515 | $663,850 | 0.0% | 0.4% | -7.8% |
| 19 | AQR CAPITAL MANAGEMENT LLC | 385,283 | $643,422 | 0.0% | 0.4% | +151.0% |
| 20 | RENAISSANCE TECHNOLOGIES LLC | 354,206 | $591,524 | 0.0% | 0.4% | -49.7% |
| 21 | NORTHERN TRUST CORP | 334,814 | $559,139 | 0.0% | 0.4% | +14.7% |
| 22 | VANGUARD PORTFOLIO MANAGEMENT LLC | 324,611 | $542,100 | 0.0% | 0.4% | +22.6% |
| 23 | Nuveen, LLC | 288,876 | $482,423 | 0.0% | 0.3% | -59.5% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 288,276 | $481,421 | 0.0% | 0.3% | +7.0% |
| 25 | Sixth Street Partners Management Company, L.P.NEW | 288,276 | $481,421 | 0.1% | 0.3% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.