Kurt L. Kalbfleisch

Insider Reports History

Location: San Diego, CA
Signature: By: Denise Garrett For: Kurt Kalbfleisch
All insider transactions: Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Kurt L. Kalbfleisch:

Form 4 holding CEO and CFO

Sphere 3D Corp.

Security class: Restricted Stock Unit (RSU)
Shares / value: 220,312
Estimated value: $342,734
Report date: 20 May 2026
Price: $0.4930
Ownership: Direct
Underlying class: Common Stock
Underlying amount

Form 4 holding CEO and CFO

Sphere 3D Corp.

Security class: Common Stock
Shares / value: 73,440
Estimated value: $102,483
Report date: 20 May 2026
Price: $1.59
Ownership: Direct

Form 4 holding CEO and CFO

Sphere 3D Corp.

Security class: Common Stock
Shares / value: 215
Estimated value: $38
Report date: 20 May 2026
Price: $0.1800
Ownership: By Daughter

Form 4 holding CEO and CFO

Sphere 3D Corp.

Security class: Common Stock
Shares / value: 215
Estimated value: $38
Report date: 20 May 2026
Price: $0.1800
Ownership: By Son

Insider Reports Filed by Kurt L. Kalbfleisch

4 ANY

Sphere 3D Corp.

Report period: 20 May 2026
Transactions: 2
Transaction value: $0
Filing time: 22 May 2026, 18:29
Role: CEO and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 12 Mar 2026
Transactions: 3
Transaction value: -$15,582
Filing time: 13 Mar 2026, 20:00
Role: CEO and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 04 Mar 2026
Transactions: 1
Transaction value: $0
Filing time: 06 Mar 2026, 17:03
Role: CEO and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 08 Dec 2025
Transactions: 3
Transaction value: -$41,922
Filing time: 10 Dec 2025, 17:07
Role: Chief Executive Officer
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 03 Sep 2025
Transactions: 3
Transaction value: -$51,593
Filing time: 05 Sep 2025, 17:00
Role: Acting CEO and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 05 Jun 2025
Transactions: 3
Transaction value: -$99,326
Filing time: 09 Jun 2025, 18:41
Role: Acting CEO and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 22 Apr 2025
Transactions: 1
Transaction value: $0
Filing time: 24 Apr 2025, 19:37
Role: Interim CEO and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 14 Mar 2025
Transactions: 3
Transaction value: -$2,077
Filing time: 18 Mar 2025, 20:36
Role: Acting CEO and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 29 Jan 2025
Transactions: 1
Transaction value: $0
Filing time: 31 Jan 2025, 20:00
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 10 Dec 2024
Transactions: 3
Transaction value: -$7,883
Filing time: 12 Dec 2024, 17:09
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 28 Aug 2024
Transactions: 3
Transaction value: -$10,450
Filing time: 30 Aug 2024, 17:24
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 07 Jun 2024
Transactions: 3
Transaction value: -$93,200
Filing time: 11 Jun 2024, 20:41
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 21 May 2024
Transactions: 1
Transaction value: $0
Filing time: 23 May 2024, 17:20
Role: CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 27 Mar 2024
Transactions: 1
Transaction value: $0
Filing time: 28 Mar 2024, 16:53
Role: CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 06 Dec 2023
Transactions: 1
Transaction value: -$15,637
Filing time: 08 Dec 2023, 18:14
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 30 Nov 2023
Transactions: 5
Transaction value: -$78,912
Filing time: 04 Dec 2023, 20:05
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 15 Nov 2023
Transactions: 2
Transaction value: $0
Filing time: 17 Nov 2023, 18:10
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 25 May 2023
Transactions: 1
Transaction value: -$24,112
Filing time: 30 May 2023, 16:30
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 22 May 2023
Transactions: 2
Transaction value: $0
Filing time: 24 May 2023, 18:49
Role: SVP and CFO
Next action: Open filing details

4 ANY

Sphere 3D Corp.

Report period: 28 Feb 2023
Transactions: 1
Transaction value: $0
Filing time: 01 Mar 2023, 15:05
Role: SVP and CFO
Next action: Open filing details

3 ANY

Sphere 3D Corp.

Report period: 01 Jan 2023
Transactions: 0
Transaction value: $0
Filing time: 03 Jan 2023, 08:02
Role: SVP and CFO
Next action: Open filing details

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. you can make detailed settings or revoke your consent (in part if necessary) with effect for the future. For further information, please refer to our Privacy Policy .