Sec Form 4 Filing - Rosen Andrea @ Ceridian HCM Holding Inc. - 2023-08-15

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 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 Rosen Andrea 2. Issuer Name and Ticker or Trading Symbol Ceridian HCM Holding Inc. [ CDAY] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O CERIDIAN HCM HOLDING INC., 3311 EAST OLD SHAKOPEE ROAD 3. Date of Earliest Transaction (MM/DD/YY) 08/15/2023 (Street) MINNEAPOLIS, MN55425 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 08/15/2023 F 599 ( 1 ) D $ 73.32 9,217 ( 2 ) D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Option (Right to Purchase) $ 65.26 ( 3 ) 05/08/2030 Common Stock 9,532 9,532 D Option (Right to Purchase) $ 74.2 ( 3 ) 08/21/2030 Common Stock 3,869 3,869 D Option (Right to Purchase) $ 87.4 ( 3 ) 05/07/2031 Common Stock 8,164 8,164 D Option (Right to Purchase) $ 50.23 ( 3 ) 05/11/2032 Common Stock 14,233 14,233 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Rosen Andrea C/O CERIDIAN HCM HOLDING INC. 3311 EAST OLD SHAKOPEE ROAD MINNEAPOLIS, MN55425 X Signatures /s/ William E. McDonald, attorney-in-fact 08/16/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )599 shares of common stock of the Issuer ("Common Stock") were forfeited to pay withholding taxes as required pursuant to the terms of the restricted stock unit ("RSU") award agreement and 448 shares of Common Stock were issued to the reporting person in connection with the vesting of 1,047 RSUs on August 15, 2023. ( 2 )Includes, (i) 5,178 shares of Common Stock, (ii) shares of Common Stock issuable pursuant to RSUs, granted on August 21, 2020, of which 899 shares vest on August 21, 2023, and (iii) shares of Common Stock issuable pursuant to RSUs, granted on May 15, 2023, of which 1,047 shares vest on each of November 15, 2023 and February 15, 2024, and 1,046 shares vest on May 15, 2024. ( 3 )These options are fully vested and exercisable.

Remarks: For Andrea Rosen pursuant to the Power of Attorney previously filed.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

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