Unum Group

Securities trading plans

During the three months ended September 30, 2026, no director or officer of the Company adopted orterminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement.

On November 3, 2026, Unum Group (the Company) announced the closing of the transactions (collectively, the Transaction) contemplated by the master transaction agreement (the Master Transaction Agreement), dated as of July 2, 2026, between Unum Life Insurance Company of America (Unum America), a Maine-domiciled insurance company and wholly owned subsidiary of the Company, and Fortitude Reinsurance Company Ltd. (the Reinsurer), a reinsurance company organized under the laws of Bermuda. The Transaction and the Master Transaction Agreement were previously described in the Company’s Current Report on Form 8-K filed on July 6, 2026 (the Prior 8-K). In connection with the closing of the Transaction, Unum America entered into a coinsurance agreement (the Coinsurance Agreement) with the Reinsurer and, for certain limited purposes, New Reinsurance Company, Ltd., a reinsurance company organized under the laws of Switzerland, pursuant to which, effective as of April 1, 2026, Unum America ceded to the Reinsurer, and the Reinsurer reinsured, on a coinsurance basis, a 100% quota share of a closed block of individual long-term care business written by Unum America, which immediately prior to the closing had been reinsured by, and was recaptured from, Fairwind Insurance Company, a wholly owned subsidiary of the Company and a Vermont captive insurance company.

The description of the Coinsurance Agreement set forth under Item 1.01 of the Prior 8-K is incorporated herein by reference, which description is qualified in its entirety by reference to the full text of the Coinsurance Agreement, a copy of which will be filed as an exhibit to the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2026.