Sec Form 4 Filing - GREENBERG EVAN G @ Chubb Ltd - 2020-12-10

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 GREENBERG EVAN G 2. Issuer Name and Ticker or Trading Symbol Chubb Ltd [ CB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chairman & CEO (Last) (First) (Middle) THE CHUBB BUILDING, 17 WOODBOURNE AVENUE 3. Date of Earliest Transaction (MM/DD/YY) 12/10/2020 (Street) HAMILTON, D0HM 08 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 680,478 ( 1 ) D Common Shares 23,321 I By Son's Trust Common Shares 48,764 I By Daughter's Trust

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 Common Shares $ 73.35 12/10/2020 G( 2 ) 115,542 ( 3 ) 02/23/2022 Common Shares 115,542 $ 0 1,363 ( 4 ) D Options to Acquire Common Shares $ 85.39 12/10/2020 G( 2 ) 142,288 ( 5 ) 02/28/2023 Common Shares 142,288 $ 0 1,171 ( 4 ) D Options to Acquire Common Shares $ 96.76 12/10/2020 G( 2 ) 97,148 ( 6 ) 02/27/2024 Common Shares 97,148 $ 0 1,033 ( 4 ) D Options to Acquire Common Shares $ 114.78 12/10/2020 G( 2 ) 101,916 ( 7 ) 02/26/2025 Common Shares 101,916 $ 0 871 ( 4 ) D Options to Acquire Common Shares $ 118.39 12/10/2020 G( 2 ) 98,818 ( 8 ) 02/25/2026 Common Shares 98,818 $ 0 844 ( 4 ) D Options to Acquire Common Shares $ 139.01 12/10/2020 G( 2 ) 84,173 ( 9 ) 02/23/2027 Common Shares 84,173 $ 0 719 ( 4 ) D Options to Acquire Common Shares $ 143.07 12/10/2020 G( 2 ) 81,773 ( 10 ) 02/22/2028 Common Shares 81,773 $ 0 698 ( 4 ) D Options to Acquire Common Shares $ 133.9 12/10/2020 G( 2 ) 91,099 ( 11 ) 02/28/2029 Common Shares 91,099 $ 0 747 ( 4 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other GREENBERG EVAN G THE CHUBB BUILDING 17 WOODBOURNE AVENUE HAMILTON, D0HM 08 X Chairman & CEO Signatures /s/Samantha Froud, Attorney-in-fact 10/28/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The number of shares reported in Column 5 is the number of shares as of December 10, 2020 and does not take into account transactions reported on Forms 4 since the date of the transactions reported herein. ( 2 )This transaction involved a gift of securities to entities for which adult family members of the reporting person are beneficiaries. ( 3 )Options vested as follows: 1/3 on February 23, 2013, 1/3 on February 23, 2014 and 1/3 on February 23, 2015. ( 4 )Total does not include options from other tranches with different exercise prices, vesting and expiration dates. ( 5 )Options vested as follows: 1/3 on February 28, 2014, 1/3 on February 28, 2015 and 1/3 on February 28, 2016. ( 6 )Options vested as follows: 1/3 on February 27, 2015, 1/3 on February 27, 2016 and 1/3 on February 27, 2017. ( 7 )Options vested as follows: 1/3 on February 26, 2016, 1/3 on February 26, 2017 and 1/3 on February 26, 2018. ( 8 )Options vested as follows: 1/3 on February 25, 2017, 1/3 on February 25, 2018 and 1/3 on February 25, 2019. ( 9 )Options vested as follows: 1/3 on February 23, 2018, 1/3 on February 23, 2019 and 1/3 on February 23, 2020. ( 10 )Options vested as follows: 1/3 on February 22, 2019, 1/3 on February 22, 2020 and 1/3 on February 22, 2021. ( 11 )Options vested or will vest as follows: 1/3 on February 28, 2020, 1/3 on February 28, 2021 and 1/3 on February 28, 2022.

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

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