Energy Vault
NRGV
129 hedge funds and large institutions have $306M invested in Energy Vault in 2025 Q4 according to their latest regulatory filings, with 48 funds opening new positions, 35 increasing their positions, 25 reducing their positions, and 14 closing their positions.
678% more call options, than puts
Call options by funds: $10.6M | Put options by funds: $1.36M
243% more first-time investments, than exits
New positions opened: 48 | Existing positions closed: 14
103% more capital invested
Capital invested by funds: $151M → $306M (+$156M)
40% more repeat investments, than reductions
Existing positions increased: 35 | Existing positions reduced: 25
36% more funds holding
Funds holding: 95 → 129 (+34)
8.17% more ownership
Funds ownership: 31.39% → 39.56% (+8.2%)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
State Street
Boston,
Massachusetts
|
+$19.8M |
| 2 |
Legal & General Group
London,
United Kingdom
|
+$15.1M |
| 3 |
Mirae Asset Global ETFs Holdings
Causeway Bay,
Hong Kong
|
+$10.3M |
| 4 |
Invesco
Atlanta,
Georgia
|
+$9.5M |
| 5 |
Marshall Wace
London,
United Kingdom
|
+$6.97M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$20.2M |
| 2 |
SCP
SailingStone Capital Partners
Houston,
Texas
|
-$7.69M |
| 3 |
CM
CastleKnight Management
New York
|
-$2.05M |
| 4 |
PCA
Private Capital Advisors
Darien,
Connecticut
|
-$1.83M |
| 5 |
GCP
GSA Capital Partners
London,
United Kingdom
|
-$1.6M |
NRGV Hedge Fund Activity: Q4 2025 in Review
129 of the 8,225 institutional investors tracked by Wall St. Rank reported a position in Energy Vault (NRGV) for Q4 2025, worth a combined $306M — up 103% from $151M a quarter earlier.
Buyers outnumbered sellers: 48 funds opened new NRGV positions and 14 closed out — a net gain of 34 holders — while 35 added to existing stakes and 25 trimmed.
The largest buyer was State Street, adding an estimated $19.8M. The largest seller was Millennium Management, cutting an estimated $20.2M.
- 129 institutional investors held Energy Vault (NRGV) as of Q4 2025, up from 95 in Q3 2025.
- Funds reported $306M of Energy Vault stock for Q4 2025, up 103% quarter-over-quarter.
- 48 funds opened new Energy Vault positions in Q4 2025 and 14 closed out, a net change of +34 holders.
- The largest Energy Vault buyer in Q4 2025 was State Street, an estimated $19.8M added.
- The largest Energy Vault seller in Q4 2025 was Millennium Management, an estimated $20.2M sold.
Based on aggregated 13F filings for Q4 2025.