X0306 4 2020-05-01 0 0000896159 Chubb Ltd CB 0001352881 SCULLY ROBERT W CHUBB BUILDING 17 WOODBOURNE AVENUE HAMILTON D0 HM 08 BERMUDA 1 0 0 0 Common Shares 2020-05-01 4 P 0 9750 102.40 A 20723 D Common Shares 17450 I By Robert W Scully 2015 Revocable Trust Common Shares 2775 I By Daughter The sale price reported above has been rounded to the nearest cent. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. /s/ Samantha Froud, Attorney-in-fact 2020-05-05