Based on data from the past 90 days ending December 20, 2025, Soluna Holdings's three largest insider shareholders are Director Michael Toporek (9.83Mn shares), Chief Executive Officer John Belizaire (4.05Mn shares), Director William P Phelan (1.32Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Michael Toporek | 9,831,362 | 03 Dec, 2025 | |
| John Belizaire | Chief Executive Officer | 4,053,287 | 11 Dec, 2025 |
| William P Phelan | 1,318,715 | 17 Dec, 2025 | |
| Thomas J Marusak | 1,149,040 | 03 Dec, 2025 | |
| Matthew E. Lipman | 986,482 | 03 Dec, 2025 | |
| Mary Jennifer Oreilly | Chief People Officer | 977,274 | 03 Dec, 2025 |
| John Bottomley | 977,158 | 03 Dec, 2025 | |
| William Hazelip | 976,458 | 03 Dec, 2025 | |
| Agnieszka Teresa Budzyn | 485,000 | 03 Dec, 2025 | |
| Jessica L. Thomas | Chief Accounting Officer | 335,197 | 11 Dec, 2025 |
| Philip F Jr Patman | Chief Financial Officer | 5,553 | 18 Apr, 2023 |
| David C Michaels | Chief Financial Officer | 52,977 | 15 Dec, 2025 |
| John Tunison | Chief Financial Officer | 27,000 | 12 Jun, 2025 |
| Alykhan Madhavji | 920 | 25 Mar, 2022 | |
| Moshe Binyamin | President Mti Instruments Andinc. | 517 | 07 Jul, 2021 |
| Edward R Hirshfield | 9,007 | 12 Dec, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 16 Dec, 2025 | William P Phelan | Common Stock | D | 1,300 | $1.41 | 1,318,715 | D | S |
| 12 Dec, 2025 | David C Michaels | Common Stock | D | 1,017 | $2.19 | 1,179,787 | D | S |
| 12 Dec, 2025 | David C Michaels | 9.0% Series A Cumulative Perpetual Preferred Stock | D | 5,669 | $9.26 | 52,977 | D | S |
| 10 Dec, 2025 | William P Phelan | 9.0% Series A Cumulative Perpetual Preferred Stock | D | 7,001 | $9.58 | 127,970 | D | S |
| 10 Dec, 2025 | Edward R Hirshfield | 9.0% Series A Cumulative Perpetual Preferred Stock | D | 2,000 | $9.70 | 11,748 | D | S |
| 11 Dec, 2025 | Edward R Hirshfield | 9.0% Series A Cumulative Perpetual Preferred Stock | D | 741 | $9.90 | 11,007 | D | S |
| 11 Dec, 2025 | William P Phelan | 9.0% Series A Cumulative Perpetual Preferred Stock | D | 3,737 | $9.52 | 124,233 | D | S |
| 12 Dec, 2025 | Edward R Hirshfield | 9.0% Series A Cumulative Perpetual Preferred Stock | D | 2,000 | $9.76 | 9,007 | D | S |
| 01 Dec, 2025 | David C Michaels | Common Stock | A | 801,222 | $0.00 | 1,180,804 | D | A |
| 01 Dec, 2025 | Edward R Hirshfield | Common Stock | A | 685,074 | $0.00 | 976,318 | D | A |
| 01 Dec, 2025 | William P Phelan | Common Stock | A | 917,932 | $0.00 | 1,320,015 | D | A |
| 01 Dec, 2025 | Mary Jennifer Oreilly | Common Stock | A | 685,074 | $0.00 | 977,274 | D | A |
| 01 Dec, 2025 | Matthew E. Lipman | Common Stock | A | 685,074 | $0.00 | 977,402 | D | A |
| 01 Dec, 2025 | Thomas J Marusak | Common Stock | A | 801,222 | $0.00 | 1,149,040 | D | A |
| 01 Dec, 2025 | Jessica L. Thomas | Common Stock | D | 3,412 | $1.63 | 109,089 | D | F |
| 01 Dec, 2025 | John Bottomley | Common Stock | A | 685,074 | $0.00 | 977,158 | D | A |
| 01 Dec, 2025 | Agnieszka Teresa Budzyn | Common Stock | A | 350,000 | $0.00 | 485,000 | D | A |
| 01 Dec, 2025 | William Hazelip | Common Stock | A | 685,074 | $0.00 | 976,458 | D | A |
| 01 Dec, 2025 | Michael Toporek | Common Stock | A | 6,894,614 | $0.00 | 9,822,282 | D | A |
| 01 Dec, 2025 | John Belizaire | Common Stock | D | 20,979 | $1.63 | 1,191,499 | D | F |