| $1B | ||
| $100M | ||
| $54M | ||
| $40M | ||
| $32M | ||
| $31M |
Buys | $585,489 | 9 | 64 |
Sells | $18,094,424 | 5 | 36 |
| Hixon Dylan | director | 2 | $426,317 | 0 | $0 | $426,317 |
| Piconi Robert | Chief Executive Officer | 3 | $94,491 | 0 | $0 | $94,491 |
| Ertel Thomas R | director | 1 | $18,366 | 0 | $0 | $18,366 |
| Mandanas Mary Beth | director | 1 | $18,250 | 0 | $0 | $18,250 |
| Paulson Larry | director | 1 | $15,726 | 0 | $0 | $15,726 |
| Ladwa Akshay | Chief Operations Officer | 1 | $12,340 | 0 | $0 | $12,340 |
| Unwin Stephanie | director | 0 | $0 | 1 | $426,984 | $-426,984 |
| Beer Michael Thomas | Chief Financial Officer | 0 | $0 | 3 | $717,440 | $-717,440 |
| SOFTBANK VISION FUND (AIV M2) L.P. | 10 percent owner | 0 | $0 | 1 | $16.95M | $-16.95M |
Energy Vault Holdings, Inc. develops and deploys utility-scale energy storage solutions in the United States, Switzerland, United Kingdom, North America, Australia, and internationally. The company offers B-Vault, an electrochemical battery energy storage solution for short-duration energy storage needs; G-Vault, a gravity energy storage solution for long-duration energy storage needs; and H-Vault, a hydrogen or hybrid energy storage solution. It also provides software solutions, such as Vault-OS Energy Management System which provides …
Over the last 12 months, insiders at Energy Vault Holdings, Inc. have bought $585,489 and sold $18.09M worth of Energy Vault Holdings, Inc. stock.
On average, over the past 5 years, insiders at Energy Vault Holdings, Inc. have bought $496,512 and sold $5.1M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Hixon Dylan (director) — $426,317. Piconi Robert (Chief Executive Officer) — $94,491. Ertel Thomas R (director) — $18,366.
The last purchase of 27,472 shares for transaction amount of $106,536 was made by Hixon Dylan (director) on 2026‑08‑17.
| 2026-08-26 | Sale | Unwin Stephanie | director | 115,000 0.0637% | $3.71 | $426,984 | +0.14% | |
| 2026-08-17 | Hixon Dylan | director | 27,472 0.0157% | $3.88 | $106,536 | -2.09% | ||
| 2026-08-14 | Hixon Dylan | director | 85,518 0.0474% | $3.74 | $319,780 | -1.19% | ||
| 2026-07-06 | Sale | Beer Michael Thomas | Chief Financial Officer | 65,000 0.0361% | $4.08 | $265,200 | -15.29% | |
| 2026-04-06 | Sale | Beer Michael Thomas | Chief Financial Officer | 65,000 0.0379% | $3.18 | $206,700 | +23.17% | |
| 2026-03-31 | Piconi Robert | Chief Executive Officer | 12,500 0.007% | $3.21 | $40,120 | +17.12% | ||
| 2026-03-25 | Mandanas Mary Beth | director | 5,000 0.0029% | $3.65 | $18,250 | +4.08% | ||
| 2026-03-04 | Ertel Thomas R | director | 5,450 0.0033% | $3.37 | $18,366 | +11.64% | ||
| 2026-03-02 | Ladwa Akshay | Chief Operations Officer | 4,000 0.0025% | $3.08 | $12,340 | +14.46% | ||
| 2026-02-27 | Paulson Larry | director | 5,000 0.0031% | $3.15 | $15,726 | +23.67% | ||
| 2026-02-26 | Piconi Robert | Chief Executive Officer | 7,500 0.0043% | $3.25 | $24,413 | +8.82% | ||
| 2026-01-15 | Sale | SOFTBANK VISION FUND (AIV M2) L.P. | 10 percent owner | 3M 1.6751% | $5.65 | $16.95M | -37.81% | |
| 2025-12-23 | Sale | Beer Michael Thomas | Chief Financial Officer | 50,000 0.0319% | $4.91 | $245,540 | -23.92% | |
| 2025-11-14 | Piconi Robert | Chief Executive Officer | 10,000 0.0057% | $3.00 | $29,958 | +25.00% | ||
| 2025-09-25 | Sale | Ladwa Akshay | Chief Operations Officer | 75,000 0.0469% | $3.11 | $233,025 | +18.81% | |
| 2025-09-24 | Sale | Ladwa Akshay | Chief Operations Officer | 75,000 0.0449% | $2.98 | $223,200 | +23.45% | |
| 2025-09-23 | Sale | Ladwa Akshay | Chief Operations Officer | 75,000 0.0471% | $3.23 | $242,625 | +17.92% | |
| 2025-09-19 | Piconi Robert | Chief Executive Officer | 17,500 0.0122% | $3.02 | $52,875 | +20.42% | ||
| 2025-09-18 | Paulson Larry | director | 20,000 0.0126% | $2.40 | $47,998 | +39.55% | ||
| 2025-09-17 | Piconi Robert | Chief Executive Officer | 50,000 0.0315% | $2.30 | $115,120 | +58.47% |
| Piconi Robert | Chief Executive Officer | 16921594 9.3058% | $54.32M | 16 | 13 | +13.23% |
| Ladwa Akshay | Chief Operations Officer | 1824384 1.0033% | $5.86M | 1 | 23 | |
| Paulson Larry | director | 501768 0.2759% | $1.61M | 4 | 0 | +90.74% |
| Ertel Thomas R | director | 365788 0.2012% | $1.17M | 3 | 0 | +119.03% |
| Mandanas Mary Beth | director | 350838 0.1929% | $1.13M | 2 | 0 | +81.77% |
| Hixon Dylan | director | 27472 0.0151% | $88,185.12 | 4 | 0 | +102.52% |
| Wiese Christopher | President, Energy Vault Labs | 1164138 0.6402% | $3.74M | 1 | 15 | +122.36% |
| Fariello Theresa M | director | 158950 0.0874% | $510,229.50 | 1 | 0 | +111.76% |
| Increased Positions | 83 | +76.15% | 26M | +50.35% |
| Decreased Positions | 43 | -39.45% | 10M | -20.02% |
| New Positions | 48 | New | 11M | New |
| Sold Out Positions | 18 | Sold Out | 1M | Sold Out |
| Total Postitions | 149 | +36.7% | 66M | +30.33% |
| Sb Investment Advisers (Uk) Ltd | $90,639.00 | 11.03% | 18.54M | 0 | 0% | 2025-09-30 |
| Sailingstone Capital Partners Llc | $33,975.00 | 4.14% | 6.95M | -1M | -15.35% | 2025-09-30 |
| Millennium Management Llc | $28,649.00 | 3.49% | 5.86M | +3M | +141.24% | 2025-09-30 |
| Scoggin Management Lp | $25,673.00 | 3.13% | 5.25M | +2M | +75% | 2025-09-30 |
| Vanguard Group Inc | $8,917.00 | 1.09% | 1.82M | +308,509 | +20.36% | 2025-09-30 |
| Marshall Wace, Llp | $6,713.00 | 0.82% | 1.37M | +1M | +380.79% | 2025-09-30 |
| Blackrock, Inc. | $6,493.00 | 0.79% | 1.33M | -111,450 | -7.74% | 2025-09-30 |
| Geode Capital Management, Llc | $5,490.00 | 0.67% | 1.12M | +112,413 | +11.13% | 2025-09-30 |
| Castleknight Management Lp | $4,131.00 | 0.5% | 844,700 | -362,500 | -30.03% | 2025-09-30 |
| Gsa Capital Partners Llp | $3,784.00 | 0.46% | 773,858 | -707,187 | -47.75% | 2025-09-30 |