NET Power
NPWR
108 hedge funds and large institutions have $81.4M invested in NET Power in 2025 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 39 increasing their positions, 26 reducing their positions, and 29 closing their positions.
325% more call options, than puts
Call options by funds: $1.85M | Put options by funds: $435K
50% more repeat investments, than reductions
Existing positions increased: 39 | Existing positions reduced: 26
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
1.99% less ownership
Funds ownership: 42.14% → 40.15% (-2%)
4% less funds holding
Funds holding: 112 → 108 (-4)
14% less first-time investments, than exits
New positions opened: 25 | Existing positions closed: 29
76% less capital invested
Capital invested by funds: $336M → $81.4M (-$254M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Adage Capital Partners
Boston,
Massachusetts
|
+$14.4M |
| 2 |
CP
CenterBook Partners
Greenwich,
Connecticut
|
+$11.6M |
| 3 |
HHAM
HITE Hedge Asset Management
Braintree,
Massachusetts
|
+$2.34M |
| 4 |
Millennium Management
New York
|
+$2.09M |
| 5 |
Marshall Wace
London,
United Kingdom
|
+$2.04M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
ECA
Encompass Capital Advisors
New York
|
-$26.4M |
| 2 |
SPPAM
Summit Partners Public Asset Management
Boston,
Massachusetts
|
-$15.4M |
| 3 |
ACM
Arosa Capital Management
Miami Beach,
Florida
|
-$6.18M |
| 4 |
Macquarie Group
Sydney, NSW 2000,
Australia
|
-$2.48M |
| 5 |
GFWEX
G.F.W. Energy XII
Dallas,
Texas
|
-$2.2M |
NPWR Hedge Fund Activity: Q1 2025 in Review
108 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in NET Power (NPWR) for Q1 2025, worth a combined $81.4M — down 76% from $336M a quarter earlier.
Sellers outnumbered buyers: 29 funds closed out of NPWR and 25 opened new positions — a net loss of 4 holders — while 26 trimmed existing stakes and 39 added.
The largest buyer was Adage Capital Partners, adding an estimated $14.4M. The largest seller was Encompass Capital Advisors, exiting entirely with an estimated $26.4M sold.
- 108 institutional investors held NET Power (NPWR) as of Q1 2025, down from 112 in Q4 2024.
- Funds reported $81.4M of NET Power stock for Q1 2025, down 76% quarter-over-quarter.
- 25 funds opened new NET Power positions in Q1 2025 and 29 closed out, a net change of -4 holders.
- The largest NET Power buyer in Q1 2025 was Adage Capital Partners, an estimated $14.4M added.
- The largest NET Power seller in Q1 2025 was Encompass Capital Advisors, an estimated $26.4M sold.
Based on aggregated 13F filings for Q1 2025.