UNISYS CORP

Trading Arrangements

During the three months ended June 30, 2026, none of our directors or officers (as defined in Rule 16a-1(f) of the Securities Exchange Act of 1934, as amended)adopted orterminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement (as such terms are defined in Item 408(a) of Regulation S-K of the Securities Act of 1933, as amended).

Amendment to Deferred Compensation Plan

Given the timing of the following event, the following information is included in this Quarterly Report on Form 10-Q pursuant to Item 5.02 of Form 8-K, “Departure of Directors or Certain Officers, Election of Directors; Appointment of Certain Officers; Compensation Arrangements of Certain Officers” in lieu of filing a Form 8-K.

On July 24, 2026, the Company’s Board of Directors (the Board) approved an amendment to the Unisys Corporation 2005 Deferred Compensation Plan, as amended and restated effective September 19, 2014 except as otherwise noted therein (the Deferred Compensation Plan). The Board approved the freeze date for the Deferred Compensation Plan as of January 1, 2027 (the Freeze Date). Effective as of the Freeze Date, (a) no individual who is not already participating in the Deferred Compensation Plan may become a participant; (b) no new deferral elections may be made under the Deferred Compensation Plan with respect to compensation earned for periods beginning on or after the Freeze Date; and (c) no company contributions, matching contributions or other credits will be made under the Deferred Compensation Plan with respect to compensation earned for periods beginning on or after the Freeze Date, except as otherwise required by the terms of the Deferred Compensation Plan or applicable law. Amounts credited to participants’ accounts before the Freeze Date will remain subject to the terms of the Deferred Compensation Plan (as amended). The foregoing summary of the amendment to the Deferred Compensation Plan does not purport to be complete and is qualified in its entirety by reference to the amendment, a copy of which is filed as Exhibit 10.2 to this Quarterly Report on Form 10-Q and incorporated herein by reference.