Sec Form 4 Filing - Kerber William X. III @ Paycom Software, Inc. - 2017-10-09

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 Kerber William X. III 2. Issuer Name and Ticker or Trading Symbol Paycom Software, Inc. [ PAYC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) X __ Other (specify below) See Remarks/See Remarks (Last) (First) (Middle) 7501 W. MEMORIAL ROAD 3. Date of Earliest Transaction (MM/DD/YY) 10/09/2017 (Street) OKLAHOMA CITY, OK73142 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 10/09/2017 D 50,261 ( 1 ) D $ 0 414,196 D Common Stock 339,577 I By WK-EGI, Inc. ( 2 )

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

Reporting Owner Name / Address Reporting Owners Relationships Director 10% Owner Officer Other Kerber William X. III 7501 W. MEMORIAL ROAD OKLAHOMA CITY, OK73142 See Remarks See Remarks Signatures /s/ William X. Kerber III 10/09/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents shares of unvested restricted stock forfeited as a result of the reporting person's resignation from his position as the Chief Information Officer of Paycom Software, Inc. ( 2 )Represents shares of common stock owned by WK-EGI, Inc. ("WK-EGI"). The reporting person is the sole director of WK-EGI, and WK-EGI is owned by the reporting person and certain trusts for the benefit of the reporting person's children, each of whom shares his household. The reporting person may be deemed to beneficially own the shares of common stock owned by WK-EGI. The reporting person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein. Neither the filing of this report nor anything herein shall be deemed an admission that the reporting person is, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose, the beneficial owner of such securities.

Remarks: Chief Information OfficerResigned 10/09/2017

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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