As of May 04, 2026, the three largest insider holders of NRGV are Robert Piconi (Chief Executive Officer, 16.59Mn shares), Robert Piconi (Chief Executive Officer, 16.59Mn shares), Vision Fund (Aiv M2) L.P. Softbank (TenPercentOwner, 15.54Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Robert Piconi | Chief Executive Officer | 16,591,673 | 0 | 02 Apr, 2026 |
| Robert Piconi | Chief Executive Officer | 16,591,673 | 0 | 02 Apr, 2026 |
| Vision Fund (Aiv M2) L.P. Softbank | - | 0 | 15,535,631 | 20 Jan, 2026 |
| Vision Fund (Aiv M2) L.P. Softbank | - | 0 | 15,535,631 | 20 Jan, 2026 |
| Robert Piconi | Chief Executive Officer | 0 | 8,615,892 | 15 Feb, 2022 |
| Robert Piconi | Chief Executive Officer | 0 | 8,615,892 | 15 Feb, 2022 |
| Tahsinul Zia Huque | - | 0 | 7,462,364 | 15 Feb, 2022 |
| Tahsinul Zia Huque | - | 0 | 7,462,364 | 15 Feb, 2022 |
| William Gross | - | 0 | 5,002,950 | 15 Aug, 2022 |
| William Gross | - | 0 | 5,002,950 | 15 Aug, 2022 |
| William Gross | - | 0 | 4,511,086 | 20 Dec, 2023 |
| William Gross | - | 0 | 4,511,086 | 20 Dec, 2023 |
| Henry Elkus | - | 0 | 3,464,463 | 15 Aug, 2022 |
| Akshay Ladwa | Chief Operations Officer | 2,141,336 | 0 | 02 Apr, 2026 |
| Akshay Ladwa | Chief Operations Officer | 2,141,336 | 0 | 02 Apr, 2026 |
| Andrea Pedretti | Chief Technology Officer | 1,979,915 | 0 | 13 Sep, 2023 |
| Andrea Pedretti | Chief Technology Officer | 1,979,915 | 0 | 13 Sep, 2023 |
| Studio, Llc Idealab | - | 1,734,943 | 0 | 16 May, 2022 |
| Studio, Llc Idealab | - | 1,734,943 | 0 | 16 May, 2022 |
| Henry Elkus | - | 0 | 1,608,009 | 15 Feb, 2022 |
| William Gross | - | 0 | 1,590,997 | 26 Oct, 2022 |
| William Gross | - | 0 | 1,590,997 | 26 Oct, 2022 |
| Marco Terruzzin | Chief Product Officer | 1,482,778 | 0 | 09 Oct, 2024 |
| Marco Terruzzin | Chief Product Officer | 1,482,778 | 0 | 09 Oct, 2024 |
| William Gross | - | 0 | 1,406,355 | 15 Mar, 2024 |
| William Gross | - | 0 | 1,406,355 | 15 Mar, 2024 |
| Laurence Alexander | Chief Marketing Officer | 1,189,336 | 0 | 10 Sep, 2024 |
| Christopher Wiese | President, Energy Vault Labs | 1,128,960 | 0 | 23 Jan, 2026 |
| Christopher Wiese | President, Energy Vault Labs | 1,128,960 | 0 | 23 Jan, 2026 |
| Michael Thomas Beer | Chief Financial Officer | 1,060,945 | 0 | 08 Apr, 2026 |
| John G Jung | President Of Evs | 1,012,090 | 0 | 13 Oct, 2023 |
| John G Jung | President Of Evs | 1,012,090 | 0 | 13 Oct, 2023 |
| Hersch Klaff | - | 170,000 | 798,222 | 11 Feb, 2022 |
| Josh Mcmorrow | Chief Legal Officer | 916,875 | 0 | 10 Sep, 2024 |
| Josh Mcmorrow | Chief Legal Officer | 916,875 | 0 | 10 Sep, 2024 |
| Dylan Hixon | - | 0 | 900,065 | 29 Aug, 2025 |
| Dylan Hixon | - | 0 | 900,065 | 29 Aug, 2025 |
| Goncagul Icoren | Chief People Officer | 865,757 | 0 | 10 Sep, 2024 |
| Goncagul Icoren | Chief People Officer | 865,757 | 0 | 10 Sep, 2024 |
| Jeffrey D Foster | - | 0 | 809,256 | 11 Feb, 2022 |
| Robert J Laikin | Chief Executive Officer | 742,382 | 0 | 11 Feb, 2022 |
| Larry Paulson | - | 0 | 609,256 | 11 Feb, 2022 |
| Larry Paulson | - | 0 | 609,256 | 11 Feb, 2022 |
| Gaalen Johannes Cornelis Maria Van | Chief Financial Officer | 577,268 | 0 | 20 Mar, 2024 |
| Gaalen Johannes Cornelis Maria Van | Chief Financial Officer | 577,268 | 0 | 20 Mar, 2024 |
| Larry Paulson | - | 501,768 | 0 | 02 Mar, 2026 |
| Larry Paulson | - | 501,768 | 0 | 02 Mar, 2026 |
| Heather Goodman | - | 191,285 | 220,000 | 11 Feb, 2022 |
| Thomas R Ertel | - | 365,788 | 0 | 05 Mar, 2026 |
| Thomas R Ertel | - | 365,788 | 0 | 05 Mar, 2026 |
| Mary Beth Mandanas | - | 350,838 | 0 | 26 Mar, 2026 |
| Mary Beth Mandanas | - | 350,838 | 0 | 26 Mar, 2026 |
| Theresa M Fariello | - | 299,064 | 0 | 18 Sep, 2025 |
| Theresa M Fariello | - | 299,064 | 0 | 18 Sep, 2025 |
| Stephanie Unwin | - | 278,092 | 0 | 18 Sep, 2025 |
| Stephanie Unwin | - | 278,092 | 0 | 18 Sep, 2025 |
| Vincent Donargo | Chief Financial Officer | 0 | 201,606 | 11 Feb, 2022 |
| William Gross | - | 154,740 | 0 | 29 May, 2024 |
| William Gross | - | 154,740 | 0 | 29 May, 2024 |
| Ronald J. Sznaider | - | 100,802 | 50,000 | 11 Feb, 2022 |
| Ronald J. Sznaider | - | 100,802 | 50,000 | 11 Feb, 2022 |
| Dylan Hixon | - | 98,449 | 0 | 18 Sep, 2025 |
| Dylan Hixon | - | 98,449 | 0 | 18 Sep, 2025 |
| Tahsinul Zia Huque | - | 0 | 90,500 | 16 May, 2022 |
| Tahsinul Zia Huque | - | 0 | 90,500 | 16 May, 2022 |
| Tahsinul Zia Huque | - | 85,751 | 0 | 30 May, 2023 |
| Tahsinul Zia Huque | - | 85,751 | 0 | 30 May, 2023 |
| Henry Elkus | - | 66,684 | 0 | 10 Feb, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 06 Apr, 2026 | Michael Thomas Beer | Common Stock | A | 50,000 | $1.17 | 1,125,945 | D | M |
| 06 Apr, 2026 | Michael Thomas Beer | Common Stock | D | 65,000 | $3.18 | 1,060,945 | D | S |
| 06 Apr, 2026 | Michael Thomas Beer | Stock Option | D | 50,000 | $0.00 | 750,000 | D | M |
| 31 Mar, 2026 | Robert Piconi | Common Stock | D | 329,921 | $3.30 | 16,591,673 | D | F |
| 31 Mar, 2026 | Michael Thomas Beer | Common Stock | D | 28,738 | $3.30 | 1,075,945 | D | F |
| 31 Mar, 2026 | Akshay Ladwa | Common Stock | D | 147,984 | $3.30 | 2,141,336 | D | F |
| 31 Mar, 2026 | Akshay Ladwa | Common Stock | D | 147,984 | $3.30 | 2,141,336 | D | F |
| 31 Mar, 2026 | Robert Piconi | Common Stock | D | 329,921 | $3.30 | 16,591,673 | D | F |
| 31 Mar, 2026 | Robert Piconi | Common Stock | A | 12,500 | $3.21 | 16,921,594 | D | P |
| 31 Mar, 2026 | Robert Piconi | Common Stock | A | 12,500 | $3.21 | 16,921,594 | D | P |
| 25 Mar, 2026 | Mary Beth Mandanas | Common Stock | A | 5,000 | $3.65 | 350,838 | D | P |
| 25 Mar, 2026 | Mary Beth Mandanas | Common Stock | A | 5,000 | $3.65 | 350,838 | D | P |
| 12 Mar, 2026 | Akshay Ladwa | Common Stock | A | 475,000 | $0.00 | 2,289,320 | D | A |
| 12 Mar, 2026 | Michael Thomas Beer | Common Stock | A | 150,000 | $0.00 | 1,104,683 | D | A |
| 12 Mar, 2026 | Akshay Ladwa | Common Stock | A | 475,000 | $0.00 | 2,289,320 | D | A |
| 05 Mar, 2026 | Akshay Ladwa | Common Stock | D | 10,064 | $3.00 | 1,814,320 | D | F |
| 05 Mar, 2026 | Akshay Ladwa | Common Stock | D | 10,064 | $3.00 | 1,814,320 | D | F |
| 05 Mar, 2026 | Robert Piconi | Common Stock | D | 68,737 | $3.00 | 20,021,900 | D | F |
| 05 Mar, 2026 | Robert Piconi | Common Stock | D | 68,737 | $3.00 | 20,021,900 | D | F |
| 04 Mar, 2026 | Thomas R Ertel | Common Stock | A | 5,450 | $3.37 | 365,788 | D | P |