ANY

Sphere 3D Corp.

Finance ServicesNasdaqNon-accelerated filer<br>Smaller reporting company

Total Trades

15

Buys

0

Sells

9

Largest Trade

N/A

Insiders

3

Institutional Funds

18

Inst. Value

$100K–$500K

Activist Filings

14

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Kalbfleisch Kurt L.CEOSELL$15K–$50K90K$0.47Dec 10, 2025
Kalbfleisch Kurt L.CEOEXERCISEN/A184KDec 10, 2025
Kalbfleisch Kurt L.SVP and CFOSELL$1K–$15K11K$0.95Aug 30, 2024
Kalbfleisch Kurt L.SVP and CFOEXERCISEN/A23KAug 30, 2024
Trompeter PatriciaCEOSELL$100K–$500K120K$1.20Jun 12, 2024
Kalbfleisch Kurt L.SVP and CFOEXERCISEN/A136KJun 12, 2024
Kalbfleisch Kurt L.SVP and CFOSELL$50K–$100K80K$1.17Jun 12, 2024
Trompeter PatriciaCEOEXERCISEN/A572KJun 12, 2024
Trompeter PatriciaCEOSELL$100K–$500K150K$1.14Jun 12, 2024
Kalbfleisch Kurt L.SVP and CFOEXERCISEN/A97KDec 5, 2023
Kalbfleisch Kurt L.SVP and CFOSELL$50K–$100K65K$0.80Dec 5, 2023
O'Daniel JosephPresidentSELL$15K–$50K50K$0.30May 30, 2023
Kalbfleisch Kurt L.SVP and CFOSELL$15K–$50K80K$0.30May 30, 2023
Trompeter PatriciaCEOSELL$15K–$50K71K$0.33May 23, 2023
Trompeter PatriciaCEOEXERCISEN/A194KMay 23, 2023
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Institutional Ownership

13F filings as of Dec 31, 2025 · 18 funds holding

Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

BIGGER CAPITAL FUND L P

SC 13G/A · Feb 9, 2026

7.9%

239K shares

BIGGER CAPITAL FUND L P

SC 13G · Dec 30, 2025

2.8%

75K shares

Armistice Capital, LLC

SC 13G/A · Nov 14, 2025

5.0%

1.8M shares

Armistice Capital, LLC

SC 13G/A · Nov 14, 2025

0.0%

0 shares

Armistice Capital, LLC

SC 13G · Aug 15, 2025

10.0%

672K shares

Armistice Capital, LLC

SC 13G · Aug 15, 2025

7.0%

4.4M shares

Armistice Capital, LLC

SC 13G/A · May 15, 2025

10.0%

2.7M shares

Armistice Capital, LLC

SC 13G · Feb 14, 2025

10.0%

2.6M shares

MMCAP International Inc. SPC

SC 13G/A · Feb 13, 2024

4.4%

666K shares

Hertford Advisors Ltd.

SC 13G/A · Feb 12, 2024

10.0%

1.6M shares

Hertford Advisors Ltd.

SC 13G · Feb 12, 2024

10.0%

1.6M shares

MMCAP International Inc. SPC

SC 13G/A · Feb 14, 2023

6.1%

4.7M shares

Hertford Advisors Ltd .

SC 13G/A · Sep 12, 2022

0.0%

0 shares

Hertford Advisors Ltd .

SC 13G · Feb 15, 2022

7.1%

4.5M shares

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