8 institutions reported holding $13.2M of ENERGY VAULT HOLDINGS INC (NRGV.WS) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($5.6M), SIMPLEX TRADING, LLC ($3.6M), IMC-Chicago, LLC ($2.3M), Skaana Management L.P. ($1.2M), Sender Co & Partners, Inc. ($424,371). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $5.6M | 1.2M | Added |
| 2 | SIMPLEX TRADING, LLC | $3.6M | 772,000 | Added |
| 3 | IMC-Chicago, LLC | $2.3M | 478,500 | Added |
| 4 | Skaana Management L.P. | $1.2M | 0 | Hold |
| 5 | Sender Co & Partners, Inc. | $424,371 | 90,100 | New |
| 6 | HRT FINANCIAL LP | $169,000 | 35,900 | Trimmed |
| 7 | JPMORGAN CHASE & CO | $450 | 100 | New |
| 8 | Ghisallo Capital Management LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30