8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT

REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported): July 18, 2025

UNISYS

CORPORATION

(Exact name of registrant as specified inits charter)

801 Lakeview Drive, Suite 100 Blue Bell, Pennsylvania 19422

(Address of principal executive offices) (Zip Code)

(215) 986-4011

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 7.01. Regulation FD Disclosure.

On July 18, 2025, Unisys Corporation (“Unisys”) issued a press release announcing it will host a conference call on Thursday, July 24, 2025, at 2 p.m. EDT to provide an update on its recent debt transaction, $250M discretionary pension contribution, and subsequent changes made to its asset allocations within its U.S. Qualified Defined Benefit Plans. Management will discuss how these actions support the acceleration of its pension strategy by meaningfully reducing its pension deficit, contributions, and volatility. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information in this Current Report on Form 8-K (the “Current Report”) is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference in any registration statement or other document filed under the Securities Act of 1933 or the Exchange Act, except as otherwise stated in such filing.

Item 9.01 Financial Statements and Exhibits.

The following exhibits are being furnished herewith:

SIGNATURE

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 hereunto duly authorized.

Exhibit 99.1

UnisysTakes Meaningful Steps to Remove U.S. Pension Volatility and Accelerate Path to Full Removal

Managementinvites investors to webcast to discuss benefits of recent capital structure transformation

BLUE BELL, Pa., July 18, 2025 – Unisys (NYSE: UIS) today announced it will host a conference call on Thursday, July 24, 2025, at 2 p.m. EDT to provide an update on its recent debt transaction, $250M discretionary pension contribution, and subsequent changes made to its asset allocations within its U.S. Qualified Defined Benefit Plans. Management will discuss how these actions support the acceleration of its pension strategy by meaningfully reducing its pension deficit, contributions, and volatility. The call will be led by Mike Thomson, chief executive officer and president, and Deb McCann, chief financial officer.

The event will include a live question-and-answer session. Investors who wish to submit questions ahead of the event can do so by emailing Investor@Unisys.com.

The live, listen-only webcast and accompanying presentation materials will be available on the Unisys Investor Relations website at www.unisys.com/investor-relations. Investors may also join the call by dialing 1-844-695-5518 (domestic) or 1-412-902-6749 (international) and referencing the conference passcode: Unisys Corporation Call.

A replay of the webcast will be available shortly after the event on the Unisys Investor Relations site. Additionally, a telephone replay will be accessible from two hours after the call until August 6, 2025, by dialing 1-877-344-7529 (domestic) or 1-412-317-0088 (international) and entering the access code 3247701.

AboutUnisys

Unisys is a global technology solutions company that powers breakthroughs for the world's leading organizations. Our solutions – cloud, AI, digital workplace, logistics and enterprise computing – help our clients challenge the status quo and unlock their full potential. To learn how we have been helping clients push what's possible for more than 150 years, visit unisys.com and follow us on LinkedIn.

Forward-LookingStatements

Any statements contained in this release that are not historical facts are forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on current assumptions, expectations and beliefs of Unisys and involve substantial risks and uncertainties that may cause actual results and the timing of events to materially differ from those expressed or implied by these forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, risks related to market and other general economic conditions, and other risks detailed in filings Unisys makes with the SEC from time to time, including under the heading “Risk Factors” in Unisys’ Annual Report on Form 10-K for the fiscal year ended December 31, 2024 and its most recent Quarterly Report on Form 10-Q for the quarter ended March 31, 2025. Unisys assumes no obligation to update any forward-looking statements.

RELEASE NO.: 0717/10007

Unisys and other Unisys products and services mentioned herein, as well as their respective logos, are trademarks or registered trademarks of Unisys Corporation. Any other brand or product referenced herein is acknowledged to be a trademark or registered trademark of its respective holder.

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