WISeSat.Space completes Columbus Acquisition merger
WISeSat.Space said its ordinary shares would begin Nasdaq trading under SAIQ effective October 2, 2026.
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Rhea-AI Filing Summary
WISeSat.Space Holdings Corp. (SAIQ) completed its previously announced business combination with Columbus Acquisition Corp., a publicly traded special purpose acquisition company, on October 1, 2026. Columbus Acquisition Corp. shareholders approved the transaction at an extraordinary general meeting on September 30, 2026.
WISeSat.Space said its ordinary shares would begin trading on Nasdaq under SAIQ effective October 2, 2026. The company describes its business as secure satellite communications for Internet of Things applications and says it has deployed satellites into orbit since 2024. It is developing satellite connectivity for connected devices, including remote monitoring, logistics, defense and infrastructure management, and aims to integrate hardware-based security, device authentication and post-quantum protection into its communications architecture, including through collaboration with sister company SEALSQ Corp.
A Nasdaq Opening Bell ceremony is scheduled for October 9, 2026, at 9:30 a.m. Eastern Time / 3:30 p.m. Swiss time.
Key Figures
Key Terms
business combination financial
special purpose acquisition company financial
PQC secure satellite communications technical
Internet of Things connectivity technical
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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 2, 2026, WISeSat Holdings Corp., a British Virgin Islands business company (“Pubco” or “WISeSat”) issued a press release (the “Press Release”) relating to its previously announced closing of its business combination with Columbus Acquisition Corp (“CAC”) (the “Business Combination”), which was closed on October 1, 2026.
A copy of the Press Release is attached hereto as Exhibit 99.1 and incorporated herein by reference.
Cautionary Note Regarding Forward-Looking Statements
This Form 6-K, including its attached Exhibit 99.1, includes “forward-looking statements” with respect to WISeSat. The expectations, estimates, and projections of the businesses of WISeSat may differ from their actual results and consequently, you should not rely on these forward-looking statements as predictions of future events. Words such as “expect,” “estimate,” “anticipate,” “intend,” “may,” “will,” “could,” “should,” “potential,” “plan” and similar expressions are intended to identify such forward-looking statements. Actual results may differ materially and adversely from those expressed or implied in any forward-looking statements and WISeSat therefore cautions against placing undue reliance on any of these forward- looking statements. Many of these factors are outside of the control of WISeSat and are difficult to predict. Factors that may cause such differences include, but are not limited to: (1) statements regarding estimates and forecasts of other financial, performance and operational metrics and projections of market opportunity; (2) references with respect to the anticipated benefits of the Business Combination and the projected future financial performance of WISeSat; (3) the outcome of proceedings, legal or otherwise, that may be initiated for or against the parties following the closing of the Business Combination; (4) WISeSat’s ability to scale and grow its business, including through the use of proceeds of the Business Combination, and the advantages and expected growth of WISeSat; (5) the cash position of WISeSat following the closing of the Business Combination; (6) the ability to recognize the anticipated benefits of the Business Combination, which may be affected by, among other things, competition, the ability of WISeSat to grow and manage growth profitably and source and retain its key employees; (7) costs related to the Business Combination; (8) changes in applicable laws and regulations or political and economic developments; (9) the possibility that WISeSat may be adversely affected by other economic, business and/or competitive factors; (10) WISeSat’s estimates of expenses and profitability; (11) operations of WISeSat and its ability to imptlement business plans, forecasts and other expectations after the closing of the Business Combination; (12) WISeSat’s participation in deployment of satellites; (13) the ability to maintain the listing of WISeSat ordinary shares on Nasdaq following the Business Combination; and (14) other risks and uncertainties included in the “Risk Factors” sections of the Registration Statement on Form F-4 filed by WISeSat in connection with the Business Combination, and other documents filed or to be filed with the SEC by WISeSat. The foregoing list of factors is not exclusive. You should not place undue reliance upon any forward-looking statements, which speak only as of the date made. WISeSat and CAC do not undertake or accept any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in their expectations or any change in events, conditions, or circumstances on which any such statement is based, except as required by law.
1
EXHIBIT INDEX
| Exhibit No. | Description | |
| 99.1 | Press Release, dated October 2, 2026. | |
2
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 2, 2026
3
Exhibit 99.1
WISeSat.Space, a Space Technology Company, Closes Business Combination with Columbus Acquisition Corporation
WISeSat.Space Ordinary Shares to Begin Trading on Nasdaq on October 2
Listing Marks a New Chapter in the Company’s Mission to Bring Cybersecurity to Space and Deliver Trusted Satellite Connectivity
WISeSat.Space to Celebrate Milestone with Nasdaq Opening Bell Ceremony on October 9
GENEVA, Switzerland, October 2, 2026 -- WISeSat.Space Holdings Corp. (Nasdaq: SAIQ) (“WISeSat.Space”), a space technology company focused on PQC secure satellite communications and Internet of Things connectivity, announced on October 1, 2026 that it completed on that date its previously announced business combination (“Business Combination”) with Columbus Acquisition Corp (“CAC”), a publicly traded special purpose acquisition company. The Business Combination was approved by CAC’s shareholders at an extraordinary general meeting held on September 30, 2026. Effective today, October 2, 2026, WISeSat.Space’s ordinary shares will begin trading on Nasdaq under the ticker symbol “SAIQ”.
To celebrate this achievement, Carlos Moreira, Founder, Chairman and CEO of WISeSat.Space and its parent company, WISeQey Corp (“WISeQey”), is scheduled to ring the Nasdaq Opening Bell ceremony on Friday, October 9, 2026, at Nasdaq MarketSite in New York City’s Times Square.
The Nasdaq listing supports the Company’s ambition to expand its space infrastructure while leveraging WISeQey’s expertise in cybersecurity, digital identity and secure semiconductors. WISeSat.Space’s mission is to extend trusted connectivity beyond terrestrial networks, enabling connected devices to communicate securely through satellite infrastructure.
“Nasdaq listing represents an extraordinary milestone for WISeSat.Space and for everyone who has contributed to this journey,” said Mr. Moreira. “I want to thank our employees, management team, technology partners, advisors, investors and all those whose dedication has made this achievement possible. Their commitment has helped turn our vision of bringing cybersecurity to space into a growing business.”
Mr. Moreira continued: “As more devices and essential services rely on satellite connectivity, trust and PQC security must be built into the infrastructure from the outset. Our ambition is to combine satellite communications with digital identity, secure chips and post-quantum technologies to help protect data from the connected device to the space network. This listing opens a new chapter in advancing that mission.”
Bringing Cybersecurity to Space
WISeSat.Space has deployed satellites into orbit since 2024 and is developing satellite connectivity designed to support secure communications for connected devices, including applications in remote monitoring, logistics, defense, and infrastructure management.
Working within the WISeKey technology ecosystem, including collaboration with it sister company SEALSQ Corp (Nasdaq: LAES), the Company aims to integrate hardware-based security, device authentication and post-quantum protection into its satellite communications architecture. These capabilities are intended to help address both today’s cybersecurity threats and the evolving risks associated with future quantum computing.
Nasdaq Opening Bell Ceremony
The celebration is currently scheduled to take place on Friday, October 9, 2026, with the Nasdaq Opening Bell at 9:30 a.m. Eastern Time / 3:30 p.m. Swiss time.
The ceremony will recognize the teams and partners behind WISeSat.Space’s development and its mission to build trusted connectivity for an increasingly connected world.
Advisors
Maxim Group LLC served as WISeSat.Space’s financial advisor. Ellenoff Grossman & Schole LLP represented WISeSat.Space as legal counsel and Harney Westwood & Riegels (BVI) LP represented WISeSat.Space as British Virgin Islands legal counsel. Loeb & Loeb LLP represented CAC as legal counsel and Ogier represented CAC as Cayman legal counsel. The Equity Group, Inc., served as WISeSat’s strategic communications advisor.
About WISeSat.Space
WISeSat.Space Holdings Corp. is a space technology company focused on secure satellite communications for Internet of Things applications. Its approach combines satellite infrastructure with cybersecurity and digital identity technologies to support trusted communications between connected devices and ground-based systems.
Forward-Looking Statements
This communication expressly or implicitly contains certain forward-looking statements concerning WISeSat.Space and its businesses. Forward-looking statements include statements regarding our business strategy, financial performance, results of operations, market data, events or developments that we expect or anticipate will occur in the future, as well as any other statements which are not historical facts. Although we believe that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. These statements involve known and unknown risks and are based upon a number of assumptions and estimates which are inherently subject to significant uncertainties and contingencies, many of which are beyond our control. Actual results may differ materially from those expressed or implied by such forward-looking statements. Important factors that, in our view, could cause actual results to differ materially from those discussed in the forward-looking statements include WISeSat.Space’s ability to continue beneficial transactions with material parties, including a limited number of significant customers; market demand and semiconductor industry conditions; and the risks discussed in WISeSat.Space’s filings with the SEC. Risks and uncertainties are further described in reports filed by WISeSat.Space with the SEC.
WISeSat.Space is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise.
CONTACTS
WISeSat:
Carlos Moreira
Chairman & CEO
Tel: +41 22 594 3000
info@wisesat.com
WISeSat Investor Relations:
The Equity Group Inc.
Lena Cati
Tel: +1 212 836-9611
Lena.cati@theequitygroup.com