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ANY · Additional Proxy Materials (DEFA14A) · Filed April 2, 2026

Sphere 3D Corp — Additional Proxy Materials (DEFA14A)

Form
DEFA14A
Filed
April 2, 2026
Ticker
ANY
Accession
0001591956-26-000009
Boardroom Alpha · Filing insights

Sphere 3D Corp. board urges voters to support all proposals, including the director slate and auditor ratification.

About Sphere 3D Corp
Market cap
$17M
1Y TSR
−69.7%
3Y TSR
−54.0%
Board grade
C-
Sector
Technology
CEO
Kurt L Kalbfleisch
Last annual meeting: May 13, 2026 · View full Sphere 3D Corp profile →
Document


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
PROXY STATEMENT PURSUANT TO SECTION 14(a)
OF THE SECURITIES EXCHANGE ACT OF 1934
Filed by the Registrant  x                            Filed by a Party other than the Registrant  o
Check the appropriate box:
 
oPreliminary Proxy Statement
oConfidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
oDefinitive Proxy Statement
xDefinitive Additional Materials
oSoliciting Material Pursuant to §240.14a-11(c) or §240.14a-12
Sphere 3D Corp.
(Name of Registrant as Specified in its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check all boxes that apply):
xNo fee required
oFee paid previously with preliminary materials
oFee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11








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IMPORTANT NOTICE REGARDING
INTERNET AVAILABILITY OF PROXY MATERIALS
for the Sphere 3D Corp.
Annual Meeting of Shareholders

Meeting Details
Thursday, May 13, 2026
11:00AM Eastern Time
https://Virtual-Meetings.TSXTrust.com/1919
Password: sphere3d2026 (case sensitive)
Get Informed Before You Vote
View the Notice of Meeting and Proxy Statement online at HTTPS://DOCS.TSXTRUST.COM/2040
OR
You can receive a free paper or email copy of the materials by requesting prior to May 5, 2026. Unless requested, you will not receive a paper or email copy. If you would like to request a copy of the materials for this and/or future shareholder meetings, you may call 1-800-600-5869 or Email TSXTIS@TMX.COM. Please be sure to include your Control Number (as shown above) in your Email.
Your Vote Counts
You may enter your voting instructions at www.VoteProxyOnline.com
Using your Control Number above
Until 10:59 AM Eastern Time May 12, 2026

Vote In Person at the Meeting
Visit https://Virtual-Meetings.TSXTrust.com/1919
Enter Password: sphere3d2026 (case sensitive)
Enter Your Control Number (shown above)

If you are a non-registered shareholder and want to vote online at the Meeting, you must appoint yourself as proxyholder prior to proxy cut-off and register with TSX Trust in advance of the Meeting prior to proxy cut-off by emailing tsxtrustproxyvoting@tmx.com the "Request for Control Number" form which can be found here https://www.tsxtrust.com/resource/en/75
Proposals Being Considered at the Meeting
See Proposals on the Reverse Side




THIS IS NOT A VOTABLE BALLOT

This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters.


Voting Items
1.To set the size of the board and elect the following Directors who will serve until the next annual shareholder meeting:
a.Timothy Hanley
b.Susan S. Harnett
c.Duncan McEwan
2.To ratify the selection of MaloneBailey LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2026.


THE BOARD OF DIRECTORS RECOMMENDS THAT YOU VOTE “FOR” ALL PROPOSALS ABOVE

PLEASE NOTE – THIS IS NOT A PROXY CARD

YOU CANNOT VOTE BY RETURNING THIS CARD



From this filing to the vote

Forecast every director vote the day the proxy files.

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More filings

Other filings from Sphere 3D Corp (ANY)

Reference

Frequently asked questions

When did Sphere 3D Corp file this DEFA14A?
Sphere 3D Corp (ANY) filed this Additional Proxy Materials (DEFA14A) with the SEC on April 2, 2026. The accession number assigned by EDGAR is 0001591956-26-000009.
What does a DEFA14A disclose?
DEFA14A is additional definitive proxy soliciting material filed in connection with a shareholder meeting — supplemental letters, slides, or amendments issued after the main proxy statement.
What is the key takeaway from this filing?
Sphere 3D Corp. board urges voters to support all proposals, including the director slate and auditor ratification. This is Boardroom Alpha's one-line summary of the additional proxy materials; see the full filing text above for the formal disclosure.
Where can I find Sphere 3D Corp's prior proxy statements on EDGAR?
The SEC EDGAR browser lists every DEFA14A Sphere 3D Corp has filed under CIK 1591956, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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