Sec Form 4/A Filing - MAZZARELLA KATHLEEN M @ Cigna Corp - 2018-12-20

FORM 4/A 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 MAZZARELLA KATHLEEN M 2. Issuer Name and Ticker or Trading Symbol Cigna Corp [ CI] 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) 900 COTTAGE GROVE ROAD 3. Date of Earliest Transaction (MM/DD/YY) 12/20/2018 (Street) BLOOMFIELD, CT06002 4. If Amendment, Date Original Filed (MM/DD/YY) 12/26/2018 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 (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, $0.01 Par Value 12/21/2018 A 201 A $ 0 201 ( 1 ) ( 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other MAZZARELLA KATHLEEN M 900 COTTAGE GROVE ROAD BLOOMFIELD, CT06002 X Signatures /s/ Jill M. Stadelman, attorney-in-fact 02/08/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Prior to the consummation of the mergers (collectively, the "Merger") contemplated by the Agreement and Plan of Merger, dated as of March 8, 2018, as amended by Amendment No. 1, dated as of June 27, 2018, by and among Cigna Corporation (now known as Cigna Holding Company) ("Cigna"), Express Scripts Holding Company ("Express Scripts"), Halfmoon Parent, Inc. (now known as Cigna Corporation), a direct wholly owned subsidiary of Cigna prior to the Merger ("New Cigna"), Halfmoon I, Inc., a direct wholly owned subsidiary of New Cigna prior to the Merger, and Halfmoon II, Inc., a direct wholly owned subsidiary of New Cigna prior to the Merger (the "Merger Agreement"), the reporting person held Express Scripts restricted stock units. Each restricted stock unit was converted into a right to receive a cash payment in accordance with the payment ratio set forth in the Merger Agreement. ( 2 )(continued from previous footnote) The Form 4 filed December 26, 2018 inadvertently included the conversion of those restricted stock units into shares of New Cigna Common Stock based on the merger consideration exchange ratio. This amendment is being filed to correct that administrative error.

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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