ABOUT THIS PROSPECTUS SUPPLEMENT
This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of the offering and certain
other matters about us and our financial condition. The second part, the accompanying prospectus, provides general information about our common stock. Generally, when we refer to the prospectus, we are referring to both parts of this document
combined. If the description of the offering varies between this prospectus supplement and the accompanying prospectus, you should rely on the information contained in or incorporated by reference into this prospectus supplement.
It is important for you to read and consider all information contained in or incorporated by reference in this prospectus supplement and the
accompanying prospectus in making your investment decision. You should also read and consider the information contained in the documents to which we have referred you to in Where You Can Find More Information in this prospectus
supplement and the accompanying prospectus.
Unless we have indicated otherwise, or the context otherwise requires, references in this
prospectus supplement and the accompanying prospectus to Edison International, we, us, and our mean Edison International, a California corporation and references to SCE mean Southern
California Edison Company, a California corporation and our wholly owned subsidiary.
Notice to Prospective Investors in the European Economic Area and
the United Kingdom
In any Member State of the European Economic Area and the United Kingdom (each, a Relevant State), this
communication is only addressed to and is only directed at qualified investors in that Member State within the meaning of the Prospectus Regulation.
This prospectus supplement has been prepared on the basis that any offer of shares in any Relevant State will be made pursuant to an exemption
under the Prospectus Regulation from the requirement to publish a prospectus for offers of shares. Accordingly, any person making or intending to make any offer in that Relevant State of shares which are the subject of the offering contemplated in
this prospectus supplement may only do so in circumstances in which no obligation arises for us or any underwriter to publish a prospectus pursuant to Article 3 of the Prospectus Regulation or supplement a prospectus pursuant to Article 23 of the
Prospectus Regulation, in each case, in relation to such offer. Neither we nor the underwriters have authorized, nor authorize, the making of any offer of shares in circumstances in which an obligation arises for us or the underwriters to publish or
supplement a prospectus for such offer.
For the purposes of this provision, the expression Prospectus Regulation means
Regulation (EU) 2017/1129.
This prospectus supplement and the accompanying prospectus is only being distributed to, and is only directed
at, persons (i) who are outside the United Kingdom or (ii) investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the Order) or (ii) high net
worth entities, and other persons to whom it may lawfully be communicated, falling within Article 49(2)(a) to (d) of the Order (all such persons together being referred to as relevant persons). Accordingly, such documents and/or
materials are not being distributed to, and must not be passed on to, the general public in the United Kingdom. This prospectus supplement and the accompanying base prospectus must not be acted on or relied on in the United Kingdom by persons who
are not relevant persons. In the United Kingdom, any investment or investment activity to which this prospectus supplement relates is only available to, and will be engaged in with, relevant persons.
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