SCHEDULE 13G/A 0000919574-24-003371 0001167212 XXXXXXXX LIVE 1 Common Stock, par value $0.01 per share 03/31/2025 0000746838 Unisys Corporation 909214306 801 Lakeview Drive, Suite 100 Blue Bell PA 19422 Rule 13d-1(c) NEEDHAM INVESTMENT MANAGEMENT LLC b DE 0.00 5559800.00 0.00 5559800.00 5559800.00 N 8.0 IA OO NEEDHAM ASSET MANAGEMENT, LLC b DE 0.00 5559800.00 0.00 5559800.00 5559800.00 N 8.0 HC OO NEEDHAM AGGRESSIVE GROWTH FUND b DE 0.00 4568000.00 0.00 4568000.00 4568000.00 N 6.6 IV OO GEORGE A. NEEDHAM b X1 0.00 5559800.00 0.00 5559800.00 5559800.00 N 8.0 HC IN Unisys Corporation 801 Lakeview Drive, Suite 100, Blue Bell, Pennsylvania 19422, United States of America Needham Investment Management L.L.C. Needham Asset Management, LLC Needham Aggressive Growth Fund George A. Needham Needham Investment Management L.L.C. 250 Park Avenue, 10th Floor New York, New York 10117-1099 United States of America Needham Asset Management, LLC c/o Needham Investment Management L.L.C. 250 Park Avenue, 10th Floor New York, New York 10117-1099 United States of America Needham Aggressive Growth Fund c/o Needham Investment Management L.L.C. 250 Park Avenue, 10th Floor New York, New York 10117-1099 United States of America George A. Needham c/o Needham Investment Management L.L.C. 250 Park Avenue, 10th Floor New York, New York 10117-1099 United States of America Needham Investment Management L.L.C. - Delaware Needham Asset Management, LLC - Delaware Needham Aggressive Growth Fund - Delaware George A. Needham - United States Y Needham Investment Management L.L.C. - 5,559,800 Needham Asset Management, LLC - 5,559,800 Needham Aggressive Growth Fund - 4,568,000 George A. Needham - 5,559,800 Needham Investment Management L.L.C. - 8.0% Needham Asset Management, LLC - 8.0% Needham Aggressive Growth Fund - 6.6% George A. Needham - 8.0% Needham Investment Management L.L.C. - 0 Needham Asset Management, LLC - 0 Needham Aggressive Growth Fund - 0 George A. Needham - 0 Needham Investment Management L.L.C. - 5,559,800 Needham Asset Management, LLC - 5,559,800 Needham Aggressive Growth Fund - 4,568,000 George A. Needham - 5,559,800 Needham Investment Management L.L.C. - 0 Needham Asset Management, LLC - 0 Needham Aggressive Growth Fund - 0 George A. Needham - 0 Needham Investment Management L.L.C. - 5,559,800 Needham Asset Management, LLC - 5,559,800 Needham Aggressive Growth Fund - 4,568,000 George A. Needham - 5,559,800 Y Y N Please see Exhibit B attached hereto. Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. [Exhibit A - Joint Filing Agreement] [Exhibit B - Control Person Identification] NEEDHAM INVESTMENT MANAGEMENT LLC By: /s/ James W. Giangrasso 05/14/2025 NEEDHAM ASSET MANAGEMENT, LLC By: /s/ James W. Giangrasso 05/14/2025 NEEDHAM AGGRESSIVE GROWTH FUND By: /s/ James W. Giangrasso 05/14/2025 GEORGE A. NEEDHAM By: /s/ George A. Needham 05/14/2025