FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Ruckstuhl Ann S   2. Issuer Name and Ticker or Trading Symbol UNISYS CORP [UIS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Senior Vice President (Last) (First) (Middle) 801 LAKEVIEW DRIVE, SUITE 100 3. Date of Earliest Transaction (Month/Day/Year) 02/09/2018 (Street) BLUE BELL, PA 19422 4. If Amendment, Date Original Filed(Month/Day/Year) 02/12/2018 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/09/2018   M   3,546 A $ 0 6,604 D   Common Stock 02/09/2018   F   1,194 D $ 9.9 5,410 D   Common Stock 02/09/2018   M   4,642 A $ 0 10,052 D   Common Stock 02/09/2018   F   1,665 D $ 9.9 8,387 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Restricted Stock Units

(1)

02/09/2018

M

3,546

(2)

(2)

Common Stock

3,546

$ 0

7,093

D

Restricted Stock Units

(3)

02/09/2018

M

3,546

(4)

(4)

Common Stock

4,642

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Ruckstuhl Ann S 801 LAKEVIEW DRIVE SUITE 100 BLUE BELL, PA 19422			Senior Vice President

Signatures

John Armbruster, attorney-in-fact		02/15/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Each restricted stock unit represents a contingent right to receive one share of Unisys Corporation common stock.
(2)	Time-based restricted stock units granted under the Unisys Corporation 2016 Long-Term Incentive and Equity Compensation Plan. The restricted stock units vest in three equal annual installments beginning February 9, 2018.
(3)	Each restricted stock unit represents a contingent right to receive 1.309 shares of Unisys Corporation common stock.
(4)	Performance-based restricted stock units ("PB-RSUs") granted on February 9, 2017 under the Unisys Corporation 2016 Long-Term Incentive and Equity Compensation Plan. PB-RSUs are earned one-third annually over a three-year period to the extent Unisys Corporation achieves a performance goal relating to operating profit for that year in each of 2017, 2018 and 2019, respectively, and then such earned PB-RSUs vest on February 9, 2018, 2019 and 2020, respectively. This report only relates to the PB-RSUs the reporting person earned based on the 2017 performance goal. All shares resulting from such earned PB-RSUs vested on February 9, 2018.
Remarks: Explanatory Note: This Form 4/A is being filed to indicated that the transactions involving restricted stock units represented disposals rather than acquisitions.

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