Chubb Ltd

Insider Trading Arrangements

During the three months ended March 31, 2026, no 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.

Disclosure of Certain Activities Under Section 13(r) of the Securities Exchange Act of 1934

Section 13(r) of the Securities Exchange Act of 1934, as amended, requires an issuer to disclose whether it or an affiliate engaged, inter alia, with individuals or entities sanctioned pursuant to certain Executive Orders during the period covered by the report.

Chubb, through certain of its non-U.S. subsidiaries, provides a broad range of insurance and reinsurance products worldwide. In the quarter ended March 31, 2026, we determined that one of our non-U.S. subsidiaries renewed an auto insurance policy at the end of 2025 with a person who had recently been placed on the Specially Designated Nationals and Blocked Persons List maintained by the U.S. Treasury Department’s Office of Foreign Assets Control (OFAC) pursuant to Executive Order No. 13224. At the time the initial policy was bound, the person had not yet been so designated. During the first quarter of 2026, the subsidiary engaged in transactions servicing such policy, as well as a prior auto insurance policy previously issued to the same policyholder.

The policies have been frozen with no withdrawal, claims, or premium payments permitted. In the quarter ended March 31, 2026, gross revenues from such policies were approximately £1.1 thousand (equivalent to $1.4 thousand). Net profits attributable to these policies are not precisely determinable but are less than the associated revenues. The non-U.S. subsidiary does not intend to provide any services to this person in the future.