Robert Piconi, CEO of Energy Vault Holdings ($NRGV), made seven open market purchases of company shares over the past year, totaling over $414,000, with the most recent on February 26, 2026. This ranks 981st among nearly 5,000 insiders, well below the average of $1.5 million per buyer. He also sold shares four times for about $69,000, most recently on July 18, 2025, placing 10,041st out of over 11,000 insiders versus an average of $8.6 million per seller.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | F | Common Stock | 329921 | $3.30 | 16,591,673.0000 | 167,790,003 | 1.95% | 0.20% |
| March 31, 2026 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 12500 | $3.21 | 16,921,594.0000 | 167,790,003 | 0.07% | 0.01% |
| March 5, 2026 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | F | Common Stock | 68737 | $3.00 | 28,637,792.0000 | 167,790,003 | 0.24% | 0.04% |
| Feb. 26, 2026 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 7500 | $3.26 | 28,706,529.0000 | 167,790,003 | 0.03% | 0.00% |
| Jan. 22, 2026 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | F | Common Stock | 91374 | $4.61 | 28,699,029.0000 | 167,790,003 | 0.32% | 0.05% |
| Dec. 11, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | F | Common Stock | 8612 | $3.44 | 28,804,522.0000 | 167,790,003 | 0.03% | 0.01% |
| Nov. 13, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | F | Common Stock | 2642 | $3.54 | 28,813,134.0000 | 167,790,003 | 0.01% | 0.00% |
| Nov. 14, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 10000 | $3.00 | 28,823,134.0000 | 167,790,003 | 0.03% | 0.01% |
| Oct. 10, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | F | Common Stock | 13719 | $2.97 | 28,815,776.0000 | 154,242,940 | 0.05% | 0.01% |
| Sept. 22, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | F | Common Stock | 10400 | $2.02 | 28,815,776.0000 | 154,242,940 | 0.04% | 0.01% |
| Sept. 19, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 17500 | $3.02 | 28,815,776.0000 | 154,242,940 | 0.06% | 0.01% |
| Sept. 17, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 50000 | $2.30 | 28,798,276.0000 | 154,242,940 | 0.17% | 0.03% |
| Sept. 16, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 25000 | $2.21 | 28,748,276.0000 | 154,242,940 | 0.09% | 0.02% |
| Sept. 4, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | F | Common Stock | 2642 | $1.14 | 28,723,276.0000 | 154,242,940 | 0.01% | 0.00% |
| Aug. 29, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 22500 | $1.92 | 28,725,918.0000 | 154,242,940 | 0.08% | 0.01% |
| Aug. 28, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 55000 | $1.71 | 28,703,418.0000 | 154,242,940 | 0.19% | 0.04% |
| July 18, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 12135 | $0.81 | 28,648,418.0000 | 154,242,940 | 0.04% | 0.01% |
| June 6, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 9326 | $0.98 | 28,660,553.0000 | 154,242,940 | 0.03% | 0.01% |
| May 16, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 40277 | $0.94 | 28,669,879.0000 | 154,242,940 | 0.14% | 0.03% |
| April 4, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 16594 | $0.71 | 28,710,156.0000 | 154,242,940 | 0.06% | 0.01% |
| March 24, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | A | Common Stock | 2500000 | $0.00 | 28,726,750.0000 | 0 | 9.53% | 0.00% |
| Feb. 7, 2025 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 2806 | $1.64 | 26,226,750.0000 | 0 | 0.01% | 0.00% |
| Dec. 13, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 9697 | $1.83 | 26,229,556.0000 | 0 | 0.04% | 0.00% |
| Nov. 22, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 150000 | $1.57 | 26,239,253.0000 | 0 | 0.57% | 0.00% |
| Nov. 11, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 2859 | $2.09 | 26,089,253.0000 | 0 | 0.01% | 0.00% |
| Sept. 13, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | P | Common Stock | 300000 | $0.87 | 26,092,112.0000 | 0 | 1.16% | 0.00% |
| Sept. 6, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 10213 | $0.85 | 25,792,112.0000 | 0 | 0.04% | 0.00% |
| Aug. 9, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 3184 | $0.85 | 25,802,325.0000 | 0 | 0.01% | 0.00% |
| June 7, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 9694 | $1.16 | 25,805,509.0000 | 0 | 0.04% | 0.00% |
| May 3, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 2683 | $1.25 | 25,815,203.0000 | 0 | 0.01% | 0.00% |
| March 7, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | A | Common Stock | 3100000 | $0.00 | 25,817,886.0000 | 0 | 13.65% | 0.00% |
| March 19, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 8855 | $1.63 | 22,717,886.0000 | 0 | 0.04% | 0.00% |
| Feb. 8, 2024 | Energy Vault Holdings, Inc. | $NRGV | Piconi Robert | Chief Executive Officer | S | Common Stock | 2503 | $1.61 | 22,726,741.0000 | 0 | 0.01% | 0.00% |