Sec Form 3 Filing - HAGAN ANNMARIE T @ Chubb Ltd - 2020-05-01

FORM 3 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 HAGAN ANNMARIE T 2. Issuer Name and Ticker or Trading Symbol Chubb Ltd [ CB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Accounting Officer (Last) (First) (Middle) 436 WALNUT STREET 3. Date of Earliest Transaction (MM/DD/YY) 05/01/2020 (Street) PHILADELPHIA, PA19106 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 Shares 8,316 ( 1 ) ( 2 ) ( 3 ) ( 4 ) 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 Options to Acquire $ 114.78 ( 5 ) 02/26/2025 Common Shares 610 D Options to Acquire $ 118.39 ( 6 ) 02/25/2026 Common Shares 2,028 D Options to Acquire $ 139.01 ( 7 ) 02/23/2027 Common Shares 2,303 D Options to Acquire $ 143.07 ( 8 ) 02/22/2028 Common Shares 2,237 D Options to Acquire $ 133.9 ( 9 ) 02/28/2029 Common Shares 2,614 D Options to Acquire $ 150.11 ( 10 ) 02/27/2030 Common Shares 2,665 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other HAGAN ANNMARIE T 436 WALNUT STREET PHILADELPHIA, PA19106 Chief Accounting Officer Signatures /s/ Samantha Froud, Attorney-in-fact 05/08/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Included in the total are 1,727 restricted stock awards granted on February 23, 2017 which vested or will vest as follows: 1/4 on February 23, 2018, 1/4 on February 23, 2019, 1/4 on February 23, 2020 and 1/4 on February 23, 2021. ( 2 )Included in the total are 1,678 restricted stock awards granted on February 22, 2018 which vested or will vest as follows: 1/4 on February 22, 2019, 1/4 on February 22, 2020, 1/4 on February 22, 2021 and 1/4 on February 22, 2022. ( 3 )Included in the total are 1,961 restricted stock awards granted on February 28, 2019 which vested or will vest as follows: 1/4 on February 28, 2020, 1/4 on February 28, 2021, 1/4 on February 28, 2022 and 1/4 on February 23, 2023. ( 4 )Included in the total are 1,999 restricted stock awards granted on February 27, 2020 which will vest as follows: 1/4 on February 27, 2021, 1/4 on February 27, 2022, 1/4 on February 27, 2023 and 1/4 on February 27, 2024. ( 5 )The stock options vested in equal installments on February 26, 2016, February 26, 2017 and February 26, 2018. ( 6 )The stock options vested in equal installments on February 25, 2017, February 25, 2018 and February 25, 2019. ( 7 )The stock options vested in equal installments on February 23, 2018, February 23, 2019 and February 23, 2020. ( 8 )The stock options vested or will vest in equal installments on February 22, 2019, February 22, 2020 and February 22, 2021. ( 9 )The stock options vested or will vest in equal installments on February 28, 2020, February 28, 2021 and February 28, 2022. ( 10 )The stock options will vest in equal installments on February 27, 2021, February 27, 2022 and February 27, 2023.

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