UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
For the month of October 2026
Commission File Number: 001-43495
WISeSat.Space Holdings Corp.
(Exact name of registrant as specified in its charter)
Craigmuir Chambers, Road Town
Tortola, British Virgin Islands VG1110
(Address of principal executive office)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:
Form 20-F ☒ Form 40-F ☐
EXPLANATORY NOTE
On October 1, 2026, WISeSat.Space Holdings Corp., a British Virgin Islands business company (“Pubco” or “WISeSat”) issued a press release (the “Press Release”) announcing that its previously announced business combination with Columbus Acquisition Corp (“CAC”) (the “Business Combination”) was closed on October 1, 2026 (“Closing”). The ordinary shares of WISeSat.Space Holdings Corp will commence trading on the Nasdaq on October 2, 2026, under the ticker symbol “SAIQ.”
The Business Combination was approved by CAC’s shareholders at an extraordinary general meeting of shareholders on September 30, 2026, and all remaining closing conditions of the Business Combination were satisfied or waived among the parties as of October 1, 2026 prior to Closing.
A copy of the Press Release is attached hereto as Exhibit 99.1 and incorporated herein by reference.
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EXHIBIT INDEX
| Exhibit No. | Description | |
| 99.1 | Press Release, dated October 1, 2026. |
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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| WISeSat.Space Holdings Corp. | ||
| By: | /s/ Carlos Moreira | |
| Name: | Carlos Moreira | |
| Title: | Chief Executive Officer and Director | |
Date: October 1, 2026
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