Net Power Inc.
NPWR- Exchange
- NYSE
- Industry
- Electrical Industrial Apparatus
- SEC CIK
- 0001845437
In the last 90 days, Net Power Inc. insiders filed 0 open-market purchases and 7 sales; 120 institutions reported holding it in 13F filings for Q2 2026, worth $64.1M in total; no superinvestor holds it.
Other share classesNPWR.WT
Q1 2026 vs. Q4 2025
How the institutions holding Net Power Inc. changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 114 | 1 | 113 | 0 |
| Shares | 33.4M | 2.02M | 35.2M | +3.87M (+12.3%) |
| Value | $76.1M | $4.60M | $55.0M | −$16.5M (−23.0%) |
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (18)
Institutions that held Net Power Inc. at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Vanguard Capital Management LLC | 1,643,795 | $2.56M | 0.00% |
| Defiance ETFs, LLC | 533,253 | $831.9K | 0.01% |
| Vanguard Portfolio Management LLC | 264,699 | $412.9K | 0.00% |
| Vanguard Fiduciary Trust Co | 249,023 | $388.5K | 0.00% |
| Citadel Advisors LLC | 218,981 | $341.6K | 0.00% |
| Gsa Capital Partners LLP | 186,240 | $291.0K | 0.02% |
| Susquehanna Fundamental Investments, LLC | 184,083 | $287.2K | 0.01% |
| Squarepoint Ops LLC | 166,242 | $259.3K | 0.00% |
| Qube Research & Technologies Ltd | 36,577 | $57.1K | 0.00% |
| Oxford Asset Management LLP | 19,566 | $30.5K | 0.01% |
| Clear Street Markets LLC | 19,263 | $30.1K | 0.01% |
| Manufacturers Life Insurance Company, The | 12,447 | $19.4K | 0.00% |
| Private Advisor Group, LLC | 12,200 | $19.0K | 0.00% |
| Vanguard Global Advisers, LLC | 12,172 | $19.0K | 0.00% |
| Rialto Wealth Management, LLC | 237 | $370 | 0.00% |
| SRS Capital Advisors, Inc. | 121 | $189 | 0.00% |
| Sunbelt Securities, Inc. | 37 | $58 | 0.00% |
| MAI Capital Management | 21 | $33 | 0.00% |
Sold out (18)
Institutions that held Net Power Inc. at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Wellington Management Group LLP | 274,327 | $625.5K |
| Two Sigma Advisers, LP | 102,400 | $233.5K |
| Worth Venture Partners, LLC | 80,250 | $183.0K |
| Quantbot Technologies LP | 60,215 | $137.3K |
| Graham Capital Management, L.P. | 59,786 | $136.3K |
| Atom Investors LP | 55,094 | $125.6K |
| Verition Fund Management LLC | 30,321 | $69.1K |
| Kovitz Investment Group Partners, LLC | 26,380 | $60.1K |
| Jain Global LLC | 25,029 | $57.1K |
| Two Sigma Securities, LLC | 21,454 | $48.9K |
| Thompson Davis & Co., Inc. | 18,111 | $41.3K |
| Schonfeld Strategic Advisors LLC | 11,179 | $25.5K |
| Quest Partners LLC | 6,275 | $14.3K |
| Strive Financial Group ,LLC | 5,000 | $11.4K |
| Eq Wealth Advisors, LLC | 2,786 | $6.35K |
| Amalgamated Bank | 988 | $2.00K |
| GAMMA Investing LLC | 309 | $705 |
| Private Wealth Management Group, LLC | 50 | $114 |
Not filed for Q1 2026 yet (1)
Institutions that held Net Power Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Vanguard Group Inc | 2,017,263 | $4.60M |