Energy Vault
NRGV
95 hedge funds and large institutions have $151M invested in Energy Vault in 2025 Q3 according to their latest regulatory filings, with 13 funds opening new positions, 26 increasing their positions, 31 reducing their positions, and 22 closing their positions.
347% more capital invested
Capital invested by funds: $33.8M → $151M (+$117M)
200% more funds holding in top 10
Funds holding in top 10: 1 → 3 (+2)
188% more call options, than puts
Call options by funds: $5.75M | Put options by funds: $2M
1.18% more ownership
Funds ownership: 30.21% → 31.39% (+1.2%)
9% less funds holding
Funds holding: 104 → 95 (-9)
16% less repeat investments, than reductions
Existing positions increased: 26 | Existing positions reduced: 31
41% less first-time investments, than exits
New positions opened: 13 | Existing positions closed: 22
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$5.63M |
| 2 |
SM
Scoggin Management
New York
|
+$3.69M |
| 3 |
Marshall Wace
London,
United Kingdom
|
+$1.78M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$506K |
| 5 |
Group One Trading
Chicago,
Illinois
|
+$362K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SCP
SailingStone Capital Partners
Houston,
Texas
|
-$2.07M |
| 2 |
GCP
GSA Capital Partners
London,
United Kingdom
|
-$1.16M |
| 3 |
Goldman Sachs
New York
|
-$712K |
| 4 |
Jane Street
New York
|
-$691K |
| 5 |
CM
CastleKnight Management
New York
|
-$595K |
NRGV Hedge Fund Activity: Q3 2025 in Review
95 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Energy Vault (NRGV) for Q3 2025, worth a combined $151M — up 347% from $33.8M a quarter earlier.
Sellers outnumbered buyers: 22 funds closed out of NRGV and 13 opened new positions — a net loss of 9 holders — while 31 trimmed existing stakes and 26 added.
The largest buyer was Millennium Management, adding an estimated $5.63M. The largest seller was SailingStone Capital Partners, cutting an estimated $2.07M.
- 95 institutional investors held Energy Vault (NRGV) as of Q3 2025, down from 104 in Q2 2025.
- Funds reported $151M of Energy Vault stock for Q3 2025, up 347% quarter-over-quarter.
- 13 funds opened new Energy Vault positions in Q3 2025 and 22 closed out, a net change of -9 holders.
- The largest Energy Vault buyer in Q3 2025 was Millennium Management, an estimated $5.63M added.
- The largest Energy Vault seller in Q3 2025 was SailingStone Capital Partners, an estimated $2.07M sold.
Based on aggregated 13F filings for Q3 2025.