Edison International said in Item 8.01 that on April 30, 2026 it agreed to sell $500,000,000 principal amount of its 5.00% Senior Notes, due 2028.

1. 01

   Edison International said in Item 8.01 that on April 30, 2026 it agreed to sell $500,000,000 principal amount of its 5.00% Senior Notes, due 2028.

2. 02

   The company said it included an Underwriting Agreement dated April 30, 2026 as Exhibit 1.1 in the exhibit index attached to this report.

3. 03

   Edison International said it attached a Sixteenth Supplemental Indenture dated May 5, 2026 as Exhibit 4.1, which includes the Form of 5.00% Senior Notes due 2028.

4. 04

   The company said it attached an Opinion of Michael A. Henry dated May 5, 2026 as Exhibit 5.1 and directed readers to the attached exhibits for further information concerning the Notes.

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