Kalbfleisch Kurt L., CEO of Sphere 3D Corp. ($ANY), made one open market sale of common shares in the last year, totaling about $42,000, with the most recent on December 9, 2025. He ranks 10,564th out of 11,678 insiders for sales volume, well below the average of $8.6 million across about six transactions per insider. Kalbfleisch has made no open market purchases in the past year.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 12, 2026 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | CEO and CFO | M | Restricted Stock Unit (RSU) | 18358 | $0.00 | 229,297.0000 | 33,729,165 | 7.41% | 0.05% |
| March 12, 2026 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | CEO and CFO | M | Common Stock | 18358 | $0.00 | 74,685.0000 | 33,729,165 | 32.59% | 0.05% |
| March 13, 2026 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | CEO and CFO | S | Common Stock | 9800 | $1.59 | 64,885.0000 | 33,729,165 | 13.12% | 0.03% |
| March 4, 2026 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | CEO and CFO | A | Restricted Stock Unit (RSU) | 150000 | $0.00 | 247,655.0000 | 33,729,165 | 153.60% | 0.44% |
| Dec. 8, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Chief Executive Officer | M | Common Stock | 183594 | $0.00 | 653,248.0000 | 33,729,165 | 39.09% | 0.54% |
| Dec. 8, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Chief Executive Officer | M | Restricted Stock Unit (RSU) | 183594 | $0.00 | 976,561.0000 | 33,729,165 | 15.82% | 0.54% |
| Dec. 9, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Chief Executive Officer | S | Common Stock | 90000 | $0.47 | 563,248.0000 | 33,729,165 | 13.78% | 0.27% |
| Sept. 3, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | F | Common Stock | 85010 | $0.61 | 469,654.0000 | 26,178,282 | 15.33% | 0.32% |
| Sept. 3, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | M | Common Stock | 195201 | $0.00 | 554,664.0000 | 26,178,282 | 54.30% | 0.75% |
| Sept. 3, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | M | Restricted Stock Unit (RSU) | 195201 | $0.00 | 1,160,155.0000 | 26,178,282 | 14.40% | 0.75% |
| June 5, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | F | Common Stock | 134406 | $0.74 | 359,463.0000 | 26,178,282 | 27.21% | 0.51% |
| June 5, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | M | Restricted Stock Unit (RSU) | 339844 | $0.00 | 1,355,356.0000 | 26,178,282 | 20.05% | 1.30% |
| June 5, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | M | Common Stock | 339844 | $0.00 | 493,869.0000 | 26,178,282 | 220.64% | 1.30% |
| April 22, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Interim CEO and CFO | A | Restricted Stock Unit (RSU) | 1000000 | $0.00 | 1,695,200.0000 | 26,178,282 | 143.84% | 3.82% |
| March 14, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | F | Common Stock | 4212 | $0.49 | 154,025.0000 | 0 | 2.66% | 0.00% |
| March 14, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | M | Common Stock | 11719 | $0.00 | 158,237.0000 | 0 | 8.00% | 0.00% |
| March 14, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | Acting CEO and CFO | M | Restricted Stock Unit (RSU) | 11719 | $0.00 | 695,200.0000 | 0 | 1.66% | 0.00% |
| Jan. 29, 2025 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | A | Restricted Stock Unit (RSU) | 625000 | $0.00 | 706,919.0000 | 0 | 762.95% | 0.00% |
| Dec. 10, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Common Stock | 11719 | $0.00 | 152,518.0000 | 0 | 8.32% | 0.00% |
| Dec. 10, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Restricted Stock Unit (RSU) | 11719 | $0.00 | 81,919.0000 | 0 | 12.52% | 0.00% |
| Dec. 10, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | S | Common Stock | 6000 | $1.31 | 146,518.0000 | 0 | 3.93% | 0.00% |
| Aug. 29, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | S | Common Stock | 11000 | $0.95 | 140,799.0000 | 0 | 7.25% | 0.00% |
| Aug. 28, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Common Stock | 23326 | $0.00 | 151,799.0000 | 0 | 18.16% | 0.00% |
| Aug. 28, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Restricted Stock Unit (RSU) | 23326 | $0.00 | 93,638.0000 | 0 | 19.94% | 0.00% |
| June 7, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Restricted Stock Unit (RSU) | 136250 | $0.00 | 116,964.0000 | 0 | 53.81% | 0.00% |
| June 7, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Common Stock | 136250 | $0.00 | 208,473.0000 | 0 | 188.65% | 0.00% |
| June 11, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | S | Common Stock | 80000 | $1.17 | 128,473.0000 | 0 | 38.37% | 0.00% |
| May 21, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | CFO | A | Restricted Stock Unit (RSU) | 105000 | $0.00 | 253,214.0000 | 0 | 70.84% | 0.00% |
| March 27, 2024 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | CFO | A | Restricted Stock Unit (RSU) | 125000 | $0.00 | 148,214.0000 | 0 | 538.47% | 0.00% |
| Dec. 6, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | S | Common Stock | 10070 | $1.55 | 72,223.0000 | 0 | 12.24% | 0.00% |
| Dec. 1, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Restricted Stock Unit (RSU) | 97143 | $0.00 | 23,214.0000 | 0 | 80.71% | 0.00% |
| Dec. 1, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | S | Common Stock | 38617 | $0.91 | 82,373.0000 | 0 | 31.92% | 0.00% |
| Dec. 1, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | F | Common Stock | 34000 | $0.80 | 120,910.0000 | 0 | 21.95% | 0.00% |
| Dec. 1, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Common Stock | 97143 | $0.00 | 154,910.0000 | 0 | 168.16% | 0.00% |
| Nov. 30, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | S | Common Stock | 26240 | $0.63 | 57,767.0000 | 0 | 31.24% | 0.00% |
| Nov. 15, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Restricted Stock Unit (RSU) | 13928 | $0.00 | 120,357.0000 | 0 | 10.37% | 0.00% |
| Nov. 15, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Common Stock | 13928 | $0.00 | 84,007.0000 | 0 | 19.87% | 0.00% |
| May 25, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | S | Common Stock | 80000 | $0.30 | 490,574.0000 | 0 | 14.02% | 0.00% |
| May 22, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Common Stock | 170000 | $0.00 | 570,574.0000 | 0 | 42.44% | 0.00% |
| May 22, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | M | Restricted Stock Unit (RSU) | 170000 | $0.00 | 940,000.0000 | 0 | 15.32% | 0.00% |
| Feb. 28, 2023 | Sphere 3D Corp. | $ANY | Kalbfleisch Kurt L. | SVP and CFO | A | Restricted Stock Unit (RSU) | 850000 | $0.00 | 1,110,000.0000 | 0 | 326.92% | 0.00% |