Energy Vault
NRGV
157 hedge funds and large institutions have $262M invested in Energy Vault in 2026 Q1 according to their latest regulatory filings, with 47 funds opening new positions, 51 increasing their positions, 34 reducing their positions, and 18 closing their positions.
6,606% more call options, than puts
Call options by funds: $39.6M | Put options by funds: $590K
161% more first-time investments, than exits
New positions opened: 47 | Existing positions closed: 18
50% more repeat investments, than reductions
Existing positions increased: 51 | Existing positions reduced: 34
22% more funds holding
Funds holding: 129 → 157 (+28)
6.29% more ownership
Funds ownership: 39.56% → 45.86% (+6.3%)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
15% less capital invested
Capital invested by funds: $306M → $262M (-$44.9M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
+$9.48M |
| 2 |
Nomura Holdings
Tokyo,
Japan
|
+$7.65M |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$7.09M |
| 4 |
Millennium Management
New York
|
+$6.15M |
| 5 |
BCM
Beartown Capital Management
Huntington Woods,
Michigan
|
+$3.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SIAU
SB Investment Advisers (UK)
London,
United Kingdom
|
-$12.4M |
| 2 |
ACM
Arosa Capital Management
Miami Beach,
Florida
|
-$2.42M |
| 3 |
Invesco
Atlanta,
Georgia
|
-$2.31M |
| 4 |
Jane Street
New York
|
-$2.28M |
| 5 |
SCP
SailingStone Capital Partners
Houston,
Texas
|
-$2.03M |
NRGV Hedge Fund Activity: Q1 2026 in Review
157 of the 8,191 institutional investors tracked by Wall St. Rank reported a position in Energy Vault (NRGV) for Q1 2026, worth a combined $262M — down 15% from $306M a quarter earlier.
Buyers outnumbered sellers: 47 funds opened new NRGV positions and 18 closed out — a net gain of 29 holders — while 51 added to existing stakes and 34 trimmed.
The largest buyer was Marshall Wace, adding an estimated $9.48M. The largest seller was SB Investment Advisers (UK), cutting an estimated $12.4M.
- 157 institutional investors held Energy Vault (NRGV) as of Q1 2026, up from 129 in Q4 2025.
- Funds reported $262M of Energy Vault stock for Q1 2026, down 15% quarter-over-quarter.
- 47 funds opened new Energy Vault positions in Q1 2026 and 18 closed out, a net change of +29 holders.
- The largest Energy Vault buyer in Q1 2026 was Marshall Wace, an estimated $9.48M added.
- The largest Energy Vault seller in Q1 2026 was SB Investment Advisers (UK), an estimated $12.4M sold.
Based on aggregated 13F filings for Q1 2026.