Chubb Ltd

On March 19, 2025, John J. Lupica, Vice Chairman; Executive Chairman, North America Insurance, adopted a "Rule 10b5-1 trading arrangement" as defined in Item 408 of SEC Regulation S-K. The arrangement is scheduled to expire on September 30, 2025, subject to earlier termination in accordance with its terms. The aggregate number of Chubb common shares authorized to be sold pursuant to the trading arrangement is 57,674.

During the three months ended March 31, 2025, no other director or officer of Chubb (as defined in Rule 16a-1(f) under the Exchange Act) informed us of theadoption ortermination of a "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement," as those terms are defined in Item 408 of SEC Regulation S-K.

On February 27, 2025, the Board of Directors (Board) amended Section 2.2.1(d) of the Organizational Regulations of Chubb Limited. The amendment reflects that the Board’s Compensation Committee is responsible for recommending to the Board the aggregate amount of director compensation to be submitted for shareholder vote at Chubb’s annual general meeting of shareholders. This role had previously been the responsibility of the Board’s Nominating & Governance Committee. A copy of the amended and restated Organizational Regulations is attached hereto as Exhibit 3.2 and incorporated herein by reference.