According to recent filings covering the 90 days ending February 07, 2026, the three most significant insider holders at Sphere 3D are Chief Executive Officer Kurt L. Kalbfleisch (558.96K shares), Ceo Patricia Trompeter (532.19K shares), Director Timothy P. Hanley (199.71K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Kurt L. Kalbfleisch | Chief Executive Officer | 558,964 | 10 Dec, 2025 |
| Patricia Trompeter | Ceo | 532,187 | 13 Dec, 2024 |
| Sue Harnett | 199,707 | 19 May, 2025 | |
| Timothy P. Hanley | 199,707 | 16 May, 2025 | |
| Joseph O'Daniel | President | 1,517 | 05 Dec, 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 |
|---|---|---|---|---|---|---|---|---|
| 09 Dec, 2025 | Kurt L. Kalbfleisch | Common Stock | D | 90,000 | $0.47 | 558,964 | D | S |
| 08 Dec, 2025 | Kurt L. Kalbfleisch | Common Stock | A | 183,594 | - | 648,964 | D | M |
| 03 Sep, 2025 | Kurt L. Kalbfleisch | Common Stock | A | 195,201 | - | 550,380 | D | M |
| 03 Sep, 2025 | Kurt L. Kalbfleisch | Common Stock | D | 85,010 | $0.61 | 465,370 | D | F |
| 05 Jun, 2025 | Kurt L. Kalbfleisch | Common Stock | A | 339,844 | - | 489,585 | D | M |
| 05 Jun, 2025 | Kurt L. Kalbfleisch | Common Stock | D | 134,406 | $0.74 | 355,179 | D | F |
| 15 May, 2025 | Sue Harnett | Common Stock | A | 96,154 | - | 199,707 | D | M |
| 15 May, 2025 | Timothy P. Hanley | - | - | 199,707 | D | |||
| 15 May, 2025 | Timothy P. Hanley | Common Stock | A | 96,154 | - | 199,707 | D | M |
| 14 Mar, 2025 | Kurt L. Kalbfleisch | Common Stock | D | 4,212 | $0.49 | 149,741 | D | F |
| 14 Mar, 2025 | Kurt L. Kalbfleisch | Common Stock | A | 11,719 | - | 153,953 | D | M |
| 13 Dec, 2024 | Patricia Trompeter | Common Stock | D | 35,000 | $1.21 | 532,187 | D | S |
| 12 Dec, 2024 | Patricia Trompeter | - | - | 567,187 | D | |||
| 12 Dec, 2024 | Patricia Trompeter | Common Stock | D | 10,000 | $1.27 | 567,187 | D | S |
| 11 Dec, 2024 | Patricia Trompeter | Common Stock | D | 20,000 | $1.30 | 577,187 | D | S |
| 11 Dec, 2024 | Patricia Trompeter | - | - | 577,187 | D | |||
| 10 Dec, 2024 | Kurt L. Kalbfleisch | Common Stock | D | 6,000 | $1.31 | 142,234 | D | S |
| 10 Dec, 2024 | Kurt L. Kalbfleisch | Common Stock | A | 11,719 | - | 148,234 | D | M |
| 10 Dec, 2024 | Patricia Trompeter | - | - | 617,187 | D | |||
| 10 Dec, 2024 | Patricia Trompeter | Common Stock | A | 187,500 | - | 617,187 | D | M |