DURHAM, NC
NET POWER INC.NPWR-WT— Latest position per institution from SEC 13F filings
15
Institutional holders
41.84M
Total shares held
168.17M
Estimated value
2.09M
Avg. position size
SHARE ANDREW L.
CIK 1693672
Shares
9.77M
Value
15.24M
Filed
Mar 31, 2026
GREENLIGHT CAPITAL INC
CIK 1079114
Shares
2.99M
Value
30.22M
Filed
Dec 31, 2023
HITE HEDGE ASSET MANAGEMENT LLC
CIK 1568939
Shares
2.76M
Value
4.31M
Filed
Mar 31, 2026
ENCOMPASS CAPITAL ADVISORS LLC
CIK 1541901
Shares
2.50M
Value
26.45M
Filed
Dec 31, 2024
PEAK6 LLC
CIK 1389958
Shares
2.29M
Value
3.57M
Filed
Mar 31, 2026
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
CIK 1638555
Shares
2.25M
Value
23.83M
Filed
Dec 31, 2024
BLACKROCK, INC.
CIK 2012383
Shares
2.14M
Value
3.34M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
2.02M
Value
4.60M
Filed
Dec 31, 2025
DME CAPITAL MANAGEMENT, LP
CIK 1489933
Shares
1.96M
Value
22.32M
Filed
Mar 31, 2024
KENSICO CAPITAL MANAGEMENT CORP
CIK 1113000
Shares
1.69M
Value
4.44M
Filed
Mar 31, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.64M
Value
2.56M
Filed
Mar 31, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 1165408
Shares
1.54M
Value
2.40M
Filed
Mar 31, 2026
SOURCEROCK GROUP LLC
CIK 1822531
Shares
1.50M
Value
2.35M
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
1.38M
Value
13.56M
Filed
Jun 30, 2024
KHROM CAPITAL MANAGEMENT LLC
CIK 1877963
Shares
1.08M
Value
2.85M
Filed
Mar 31, 2025
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
1.08M
Value
1.69M
Filed
Mar 31, 2026
COHEN & STEERS, INC.
CIK 1284812
Shares
892.14K
Value
1.39K
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
860.39K
Value
1.34M
Filed
Mar 31, 2026
ARGENTARII, LLC
CIK 2030055
Shares
748.65K
Value
1.17M
Filed
Mar 31, 2026
MARSHALL WACE, LLP
CIK 1318757
Shares
737.95K
Value
1.94M
Filed
Mar 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | SHARE ANDREW L. | 1693672 | 9.77M | 15.24M | Mar 31, 2026 |
| 2 | GREENLIGHT CAPITAL INC | 1079114 | 2.99M | 30.22M | Dec 31, 2023 |
| 3 | HITE HEDGE ASSET MANAGEMENT LLC | 1568939 | 2.76M | 4.31M | Mar 31, 2026 |
| 4 | ENCOMPASS CAPITAL ADVISORS LLC | 1541901 | 2.50M | 26.45M | Dec 31, 2024 |
| 5 | PEAK6 LLC | 1389958 | 2.29M | 3.57M | Mar 31, 2026 |
| 6 | SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 1638555 | 2.25M | 23.83M | Dec 31, 2024 |
| 7 | BLACKROCK, INC. | 2012383 | 2.14M | 3.34M | Mar 31, 2026 |
| 8 | VANGUARD GROUP INC | 102909 | 2.02M | 4.60M | Dec 31, 2025 |
| 9 | DME CAPITAL MANAGEMENT, LP | 1489933 | 1.96M | 22.32M | Mar 31, 2024 |
| 10 | KENSICO CAPITAL MANAGEMENT CORP | 1113000 | 1.69M | 4.44M | Mar 31, 2025 |
| 11 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.64M | 2.56M | Mar 31, 2026 |
| 12 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1165408 | 1.54M | 2.40M | Mar 31, 2026 |
| 13 | SOURCEROCK GROUP LLC | 1822531 | 1.50M | 2.35M | Mar 31, 2026 |
| 14 | BLACKROCK FINANCE, INC. | 1364742 | 1.38M | 13.56M | Jun 30, 2024 |
| 15 | KHROM CAPITAL MANAGEMENT LLC | 1877963 | 1.08M | 2.85M | Mar 31, 2025 |
| 16 | TWO SIGMA INVESTMENTS, LP | 1179392 | 1.08M | 1.69M | Mar 31, 2026 |
| 17 | COHEN & STEERS, INC. | 1284812 | 892.14K | 1.39K | Mar 31, 2026 |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 860.39K | 1.34M | Mar 31, 2026 |
| 19 | ARGENTARII, LLC | 2030055 | 748.65K | 1.17M | Mar 31, 2026 |
| 20 | MARSHALL WACE, LLP | 1318757 | 737.95K | 1.94M | Mar 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.