Chubb Ltd

1. Award of performance stock units ("PSUs") pursuant to the Chubb Limited 2016 Long-Term Incentive Plan (the "Plan") that vests, in whole or in part, subject to the satisfaction of certain service and performance based criteria on the later of the third anniversary of the date of the award and the date of certification of satisfaction of performance based criteria for the three-year performance period. Each PSU represents a contingent right to receive one Common Share, and any PSUs that do not vest will be cancelled. Dividends shall be accumulated and distributed only when, and to the extent that the PSUs have vested.

2. Award of PSUs pursuant to the Plan representing a premium performance award with respect to the PSUs described above that vests, in whole or in part, subject to the satisfaction of certain service and performance based criteria on the later of the third anniversary of the date of the award and the date of certification of satisfaction of performance based criteria for the three-year performance period. Each PSU represents a contingent right to receive one Common Share, and any PSUs that do not vest will be cancelled. Dividends shall be accumulated and distributed only when, and to the extent that the PSUs have vested.

3. Total includes previously reported PSUs from other tranches with different vesting and expiration dates.