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 OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

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/YYYY)

12/20/2017
(Street)

HAMILTON, D0 HM 08
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   12/20/2017     M    16022   A $60.28   1367229   D    
Common Shares   12/20/2017     S (1)    14364   D $147.20   (2) 1352865   D    
Common Shares   12/21/2017     M    114618   A $60.28   1467483   D    
Common Shares   12/21/2017     S (1)    81397   D $145.27   (3) 1386086   D    
Common Shares                  57649   I   By Son's Trust  
Common Shares                  57649   I   By Daughter's Trust  

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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   $60.28   12/20/2017     M         16022      (4) 2/27/2018   Common Shares   16022   $0.00   1223704   (5) D    
Options to Acquire Common Shares   $60.28   12/21/2017     M         114618      (4) 2/27/2018   Common Shares   114618   $0.00   1109086   (6) D    

Explanation of Responses:
(1)  Includes sale of Common Shares in connection with broker-assisted cashless exercise of options.
(2)  The Common Shares reported herein as being sold were sold at a range of between $147.00 and $147.56 per share. The sale price reported above represents the weighted average sale price for the reported transaction and has been rounded to the nearest cent.
(3)  The Common Shares reported herein as being sold were sold at a range of between $145.06 and $145.50 per share. The sale price reported above represents the weighted average sale price for the reported transaction and has been rounded to the nearest cent.
(4)  The stock options vested in equal installments on February 27, 2009, February 27, 2010 and February 27, 2011.
(5)  Total includes options from other tranches with different exercise prices, vesting dates and expiration dates.
(6)  All options of this tranche have been exercised. Total includes options from other tranches with different exercise prices, vesting dates and expiration dates.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
GREENBERG EVAN G
THE CHUBB BUILDING
17 WOODBOURNE AVENUE
HAMILTON, D0 HM 08 		X
Chairman & CEO

Signatures
/s/ Samantha Froud, Attorney-in-fact 12/22/2017
** Signature of Reporting Person Date


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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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