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5%+ stakes · Schedule 13D and 13G

Sphere 3D Corp.: 5%+ holders

Who has reported owning 5% or more of Sphere 3D Corp., from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

At 5% or more2
Filings6
Latest filing2026-08-26

Sphere 3D Corp. has 6 Schedule 13D or 13G filings on record since 2025-08-14. 2 holders' latest filing reports 5% or more of common shares, no par value. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
Thomas Masiero6.7%513,741SCHEDULE 13G, 2026-07-082026-06-01
Jialin Qu6.2%476,490SCHEDULE 13G, 2026-07-202026-06-01
Armistice Capital, LLC4.99%1,771,482SCHEDULE 13G/A, 2025-11-142025-09-30
Endeavor Blockchain, LLC3.4%300,000SCHEDULE 13D/A, 2026-08-262026-08-24

Purpose of Transaction (Item 4)

Endeavor Blockchain, LLC

The Reporting Persons purchased the Shares based on the Reporting Person's belief that when purchased, the Shares were undervalued and represented an attractive investment opportunity. Depending upon overall market conditions other investment opportunities available to the Reporting Persons, and the availability of Shares at prices that would make the purchase or sale of Shares desirable, the Reporting Persons may endeavor to increase or decrease their position in the Issuer through, among other things, the purchase or sale of Shares on the open market or in private transactions or otherwise, on such terms and at such times as the Reporting Persons may deem advisable. The Reporting Persons intend to engage with the Issuer's management and Board of Directors regarding opportunities for value creation.Item 4 of the SCHEDULE 13D/A filed 2026-08-26

Timeline

FiledHolderPercentFiling
2025-08-14Armistice Capital, LLC7.05%SCHEDULE 13G/A
2025-11-14Armistice Capital, LLC4.99%SCHEDULE 13G/A
2026-07-08Thomas Masiero6.7%SCHEDULE 13G
2026-07-20Jialin Qu6.2%SCHEDULE 13G
2026-07-31Endeavor Blockchain, LLC6.5%SCHEDULE 13D
2026-08-26Endeavor Blockchain, LLC3.4%SCHEDULE 13D/A

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/sphere-3d
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Sphere 3D Corp. 5%+ holders: 2 at 5% or more, largest Thomas Masiero 6.7%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/sphere-3d