Prospectus Filed Pursuant to Rule 424(b)(5) (424b5)

Filed Pursuant to Rule 424(b)(5)
Registration No. 333-258265

The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to sell nor do they seek an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED MAY 10, 2023

PROSPECTUS SUPPLEMENT

(To Prospectus dated July 29, 2021)

LOGO

Edison International

$ % Senior Notes Due 2028

We are offering $ principal amount of our % Senior Notes due 2028. The notes will bear interest at the rate of % per year. Interest on the notes is payable semi-annually on May 15 and November 15 of each year, beginning on November 15, 2023. The notes will mature on November 15, 2028. We may at our option redeem some or all of the notes at any time at the redemption price discussed under the caption “Certain Terms of the Notes—Optional Redemption.”

The notes will be unsecured obligations and will rank equally with all of our other unsecured and unsubordinated indebtedness from time to time outstanding.

Investing in the notes involves risks. See “Risk Factors” beginning on page S-6 and the risk factors included in our Annual Report on Form 10-K for the year ended December 31, 2022 and our Quarterly Report on Form 10-Q for the quarter ended March 31, 2023.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the related prospectus is truthful or complete. Any representation to the contrary is a criminal offense.


	Per Note		Total
Public offering price		%	$
Underwriting discount		%	$
Proceeds to us before expenses		%	$

Interest on the notes will accrue from May , 2023.

The notes are expected to be delivered in global form through the book-entry delivery system of The Depository Trust Company for the accounts of its participants, including Clearstream Banking, société anonyme, and Euroclear Bank SA/NV, on or about May , 2023.

Joint Book-Running Managers


Mizuho		MUFG		PNC Capital Markets LLC

May , 2023

We are responsible for the information contained and incorporated by reference in this prospectus supplement and the accompanying base prospectus and in any related free writing prospectus that we prepare or authorize. We have not, and the underwriters have not, authorized anyone to provide you with any other information, and we and the underwriters take no responsibility for any other information that others may provide you. Neither we nor the underwriters are making an offer to sell the notes in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus supplement, the accompanying base prospectus, any such free writing prospectus and the documents incorporated by reference herein and therein is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have changed since those dates.

TABLE OF CONTENTS

Prospectus Supplement


	Page
About This Prospectus Supplement		S-1
Forward-Looking Statements		S-3
Edison International		S-5
Risk Factors		S-6
Use of Proceeds		S-6
Certain Terms of the Notes		S-7
Underwriting		S-12
Legal Matters		S-18

Prospectus


About This Prospectus			1
Forward-Looking Statements			1
Edison International			2
Risk Factors			2
Use of Proceeds			2
Description of the Debt Securities			2
Description of Common Stock and Preferred Stock			12
Plan of Distribution			15
Experts			16
Validity of the Securities			16
Where You Can Find More Information			16

ABOUT THIS PROSPECTUS SUPPLEMENT

This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of the notes we are offering and certain other matters about us and our financial condition. The second part, the accompanying base prospectus, provides general information about the debt securities that we may offer from time to time, some of which may not apply to the notes we are offering hereby. Generally, when we refer to the prospectus, we are referring to both this prospectus supplement and the accompanying base prospectus. If the description of the notes varies between this prospectus supplement and the accompanying base prospectus, you should rely on the information in this prospectus supplement. References in this prospectus to “Edison International,” “we,” “us,” and “our” mean Edison International on a stand-alone basis, not consolidated with its subsidiaries.

Prohibition of Sales to EEA Retail Investors

The notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the European Economic Area (“EEA”). For these purposes, (i) a retail investor means a person who is one (or more) of: (A) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU (as amended, “MiFID II”); or (B) a customer within the meaning of Directive (EU) 2016/97 (as amended, the “Insurance Distribution Directive”), where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (C) not a qualified investor as defined in Regulation (EU) 2017/1129 (as amended, the “Prospectus Regulation”); and (ii) the expression “offer” includes the communication in any form and by any means of sufficient information on the terms of the offer and the notes to be offered so as to enable an investor to decide to purchase or subscribe for the notes. Consequently, no key information document required by Regulation (EU) No 1286/2014 (as amended, the “PRIIPs Regulation”) for offering or selling the notes or otherwise making them available to retail investors in the EEA has been prepared and therefore offering or selling the notes or otherwise making them available to any retail investor in the EEA may be unlawful under the PRIIPs Regulation. This prospectus supplement and the accompanying prospectus have been prepared on the basis that any offer of the notes in any member state of the EEA will be made pursuant to an exemption under the Prospectus Regulation from the requirement to publish a prospectus for offers of the notes. This prospectus supplement and the accompanying prospectus are not a prospectus for the purposes of the Prospectus Regulation.

Prohibition of Sales to United Kingdom Retail Investors

The notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the United Kingdom (“UK”). For these purposes, (i) a retail investor means a person who is one (or more) of: (A) a retail client, as defined in point (8) of Article 2 of Regulation (EU) No 2017/565 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 (the “EUWA”); (B) a customer within the meaning of the provisions of the Financial Services and Markets Act 2000 (“FSMA”) and any rules or regulations made under the FSMA to implement Directive (EU) 2016/97, where that customer would not qualify as a professional client, as defined in point (8) of Article 2(1) of Regulation (EU) No 600/2014 as it forms part of UK domestic law by virtue of the EUWA; or (C) not a qualified investor as defined in Article 2 of Regulation (EU) 2017/1129 as it forms part of UK domestic law by virtue of the EUWA (the “UK Prospectus Regulation”); and (ii) the expression “offer” includes the communication in any form and by any means of sufficient information on the terms of the offer and the notes to be offered so as to enable an investor to decide to purchase or subscribe for the notes. Consequently, no key information document required by Regulation (EU) No 1286/2014 as it forms part of UK domestic law by virtue of the EUWA (the “UK PRIIPs Regulation”) for offering or selling the notes or otherwise making them available to retail investors in the UK has been prepared and therefore offering or selling the notes or making them available to any retail investor in the UK may be unlawful under the UK PRIIPs Regulation. This prospectus supplement and the accompanying prospectus have been prepared on the basis that any offer of the notes in the UK will be made pursuant to an exemption under the UK Prospectus Regulation from the requirement to publish

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a prospectus for offers of notes. This prospectus supplement and the accompanying prospectus are not a prospectus for the purposes of the UK Prospectus Regulation.

This communication is only being distributed to and is only directed at (i) persons who are outside the UK or (ii) investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the “Order”) or (iii) 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”). The notes are only available to, and any invitation, offer or agreement to subscribe, purchase or otherwise acquire such notes will be engaged in only with, relevant persons. Any person who is not a relevant person should not act or rely on this document or any of its contents.

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FORWARD-LOOKING STATEMENTS

This prospectus and the documents they incorporate by reference contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements reflect our current expectations and projections about future events based on our knowledge of present facts and circumstances and assumptions about future events and include any statement that does not directly relate to a historical or current fact. In this prospectus and elsewhere, the words “expects,” “believes,” “anticipates,” “estimates,” “projects,” “intends,” “plans,” “probable,” “may,” “will,” “could,” “would,” “should,” and variations of such words and similar expressions, or discussions of strategy or of plans, are intended to identify forward-looking statements. Such statements necessarily involve risks and uncertainties that could cause actual results to differ materially from those anticipated. Some of the risks, uncertainties and other important factors that could cause results to differ from those currently expected, or that otherwise could impact us and our subsidiaries, include, but are not limited to:

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the ability of Southern California Edison Company (“SCE”) to recover its costs through regulated rates, including uninsured wildfire-related and debris flow-related costs, costs incurred to mitigate the risk of utility equipment causing future wildfires, costs incurred as a result of the COVID-19 pandemic, and increased costs due to supply chain constraints, inflation and rising interest rates;

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the ability of SCE to implement its Wildfire Mitigation Plan and capital program;

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risks of regulatory or legislative restrictions that would limit SCE’s ability to implement its operational measures to mitigate wildfire risk, including Public Safety Power Shutoff Program (“PSPS”) and fast curve settings, when conditions warrant or would otherwise limit our operational practices relative to wildfire risk mitigation;

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risks associated with SCE implementing PSPS, including regulatory fines and penalties, claims for damages and reputational harm;

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SCE’s ability to maintain a valid safety certification;

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our ability to obtain sufficient insurance at a reasonable cost, including insurance relating to wildfire-related claims, and to recover the costs of such insurance or, in the event liabilities exceed insured amounts, the ability to recover uninsured losses (including amounts paid for self-insured retention and co-insurance) from customers or other parties;

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extreme weather-related incidents (including events caused, or exacerbated, by climate change, such as wildfires, debris flows, flooding, droughts, high wind events and extreme heat events) and other natural disasters (such as earthquakes), which could cause, among other things, public safety issues, property damage, rotating outages, and other operational issues (such as issues due to damaged infrastructure), PSPS activations and unanticipated costs;

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risks that California Assembly Bill 1054 (“AB 1054”) does not effectively mitigate the significant exposure faced by California investor-owned utilities related to liability for damages arising from catastrophic wildfires where utility facilities are alleged to be a substantial cause, including the longevity of the Wildfire Insurance Fund, and the California Public Utilities Commission’s (“CPUC”) interpretation of and actions under AB 1054, including its interpretation of the prudency standard clarified by AB 1054;

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our ability to effectively attract, manage, develop and retain a skilled workforce, including contract workers;

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decisions and other actions by the CPUC, the Office of Energy Infrastructure Safety, the Federal Energy Regulatory Commission, the Nuclear Regulatory Commission and other governmental authorities, including decisions and actions related to nationwide or statewide crisis, determinations of authorized rates of return or return on equity, the recoverability of wildfire-related and debris flow-related costs, issuance of SCE’s wildfire safety certification, wildfire mitigation efforts, approval and implementation of electrification programs, and delays in executive, regulatory and legislative actions;

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cost and availability of labor, equipment and materials, including as a result of supply chain constraints and inflation;

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our ability to borrow funds and access the bank and capital markets on reasonable terms;

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risks associated with the decommissioning of the San Onofre Nuclear Generating Station, including those related to worker and public safety, public opposition, permitting, governmental approvals, on-site storage of spent nuclear fuel and other radioactive material, delays, contractual disputes, and cost overruns;

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pandemics, such as COVID-19, and other events that cause regional, statewide, national or global disruption, which could impact, among other things, our business, operations, cash flows, liquidity and/ or financial results and cause us to incur unanticipated costs;

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physical security of our critical assets and personnel and the cybersecurity of our critical information technology systems for grid control, and business, employee and customer data;

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risks associated with cost allocation, resulting in higher rates for utility bundled service customers because of possible customer bypass or departure for other electricity providers such as Community Choice Aggregators, which are cities, counties, and certain other public agencies with the authority to generate and/or purchase electricity for their local residents and businesses, and electric service providers;

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risks inherent in SCE’s capital investment program, including those related to project site identification, public opposition, environmental mitigation, construction, permitting, contractor performance, availability of labor, equipment and materials, weather, changes in the California Independent System Operator’s transmission plans, and governmental approvals;

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risks associated with the operation of electrical facilities including worker and public safety issues, the risk of utility assets causing or contributing to wildfires, failure, availability, efficiency, and output of equipment and facilities, and availability and cost of spare parts;

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actions by credit rating agencies to downgrade our credit ratings or to place those ratings on negative watch or negative outlook;

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changes in tax laws and regulations, at both the state and federal levels, or changes in the application of those laws, that could affect recorded deferred tax assets and liabilities, effective tax rate, and cash flows;

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changes in future taxable income, or changes in tax law, that would limit our realization of expected net operating loss and tax credit carryover benefits prior to expiration;

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changes in the fair value of investments and other assets;

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changes in interest rates and potential adjustments to SCE’s ROE based on changes in Moody’s utility bond rate index;

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changes in rates of inflation (including whether inflation-related adjustments to SCE’s authorized revenues allowed by the public utility regulators are commensurate with inflation rates);

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governmental, statutory, regulatory or administrative changes or initiatives affecting the electricity industry, including the market structure rules applicable to each market adopted by the North American Electric Reliability Corporation, and similar regulatory bodies in adjoining regions, and changes in the United States’ and California’s environmental priorities that lessen the importance placed on greenhouse gas reduction and other climate related priorities;

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availability and creditworthiness of counterparties and the resulting effects on liquidity in the power and fuel markets and/or the ability of counterparties to pay amounts owed in excess of collateral provided in support of their obligations;

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potential for penalties or disallowance for non-compliance with applicable laws and regulations, including fines, penalties and disallowances related to wildfires where SCE’s equipment is alleged to be associated with ignition; and

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cost of fuel for generating facilities and related transportation, which could be impacted by, among other things, disruption of natural gas storage facilities, to the extent not recovered through regulated rate cost escalation provisions or balancing accounts.

Additional information about risks and uncertainties that could cause results to differ from those currently expected or that otherwise could impact us, including more detail about the factors described above, is included in our Annual Report on Form 10-K for the year ended December 31, 2022, our Quarterly Reports on Form 10-Q, and our Current Reports on Form 8-K filed subsequent to that date. Forward-looking statements speak only as of the date they are made and we are not obligated to publicly update or revise forward-looking statements.

EDISON INTERNATIONAL

Edison International is the parent holding company of Southern California Edison Company, a California public utility. Edison International also owns or holds interests in companies that are competitive businesses related to the generation or use of electricity. Based in Rosemead, California, Edison International was incorporated in California in 1987.

The mailing address and telephone number of our principal executive offices are P.O. Box 976, Rosemead, CA 91770 and (626) 302-2222.

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RISK FACTORS

Your decision whether or not to purchase any of the notes will involve some degree of risk. You should be aware of and carefully consider the following risk factors and the risk factors included in our Annual Report on Form 10-K for the year ended December 31, 2022 and our Quarterly Report on Form 10-Q for the quarter ended March 31, 2023(which is incorporated by reference in this prospectus supplement and the related base prospectus). New risks may emerge at any time, and we cannot predict such risks or estimate the extent to which they may affect our financial performance. You should also read and consider all of the other information provided or incorporated by reference in this prospectus supplement and the related base prospectus before deciding whether or not to purchase any of the notes. See “Forward-Looking Statements” in this prospectus supplement and “Where You Can Find More Information” in the base prospectus.

You may be unable to sell your notes if a trading market for the notes does not develop.

The notes will be new securities for which there is currently no established trading market, and none may develop. We do not intend to apply for listing of the notes on any securities exchange or for quotation on any automated dealer quotation system. The liquidity of any market for the notes will depend on the number of holders of the notes, the interest of securities dealers in making a market in the notes, and other factors. Accordingly, we cannot assure you as to the development or liquidity of any market for the notes. If an active trading market does not develop, the market price and liquidity of the notes may be adversely affected. If the notes are traded, they may trade at a discount from their initial offering price depending upon prevailing interest rates, the market for similar securities, general economic conditions, our performance and business prospects, and certain other factors.

The notes are our obligations and not obligations of our subsidiaries and will be effectively subordinated to the claims of the subsidiaries’ creditors.

The notes are our obligations exclusively and not obligations of our subsidiaries. Because we are a holding company, our obligations under the notes will be structurally subordinated to all existing and future liabilities and preferred equity of our subsidiaries. Therefore, our creditors, including holders of the notes, will not have a direct right to participate in the assets of any subsidiary upon the liquidation or reorganization of the subsidiary. Instead, our creditors will participate in those assets only to the extent that we receive a distribution from the subsidiary on account of any claim or interest that we have against or in the subsidiary. At March 31, 2023, our subsidiaries had total consolidated liabilities of approximately $56.7 billion and preferred equity outstanding with a total liquidation value of approximately $1.9 billion.

We may be unable to meet our ongoing and future financial obligations if our subsidiaries are unable to pay dividends to us.

Our ability to meet our financial obligations is primarily dependent on the earnings and cash flows of our subsidiaries and their ability to pay dividends, make other distributions or repay funds owed from time to time to us. Prior to funding Edison International, our subsidiaries have financial and regulatory obligations that must be satisfied, including, among others, debt service and preferred stock dividends. The CPUC also regulates SCE’s capital structure and limits the dividends it may pay to us. In addition, the indenture under which the notes will be issued does not limit our ability, or the ability of our subsidiaries, to pledge shares of stock as security for other indebtedness.

USE OF PROCEEDS

We intend to use the net proceeds from the offering of the notes for general corporate purposes and to repay commercial paper borrowings. The current weighted average interest rate of our commercial paper borrowings is approximately 5.57%.

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CERTAIN TERMS OF THE NOTES

The notes will be additional series of our debt securities issued under an indenture dated as of September 10, 2010 between Edison International, as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee.

The summary of selected provisions of the notes and the indenture referred to below supplements, and to the extent inconsistent supersedes and replaces, the description of the general terms and provisions of the debt securities and the indenture contained in the accompanying base prospectus. This summary is not complete and is qualified by reference to provisions of the notes and the indenture. Forms of the notes and the indenture have been or will be filed with the Securities and Exchange Commission and you may obtain copies as described under “Where You Can Find More Information” in the accompanying base prospectus.

Interest Rate and Maturity

The notes will bear interest at the rate of % per year. Interest on the notes will be payable semi-annually in arrears on May 15 and November 15 of each year, beginning on November 15, 2023, to the holders of record at the close of business on the business day immediately preceding the interest payment date so long as the notes remain in book-entry only form, or on the immediately preceding May 1 and November 1, respectively, if the notes do not remain in book-entry only form. See “—Book-Entry, Delivery and Form” below. Interest will be computed on the basis of a 360-day year consisting of twelve 30-day months; provided that the amount of interest payable for any period shorter or longer than a full interest period will be computed on the basis of a 360-day year consisting of twelve 30-day months and the actual number of days elapsed in the period using 30-day months.

The notes will mature on November 15, 2028. The notes are subject to earlier redemption at our option as described under “—Optional Redemption.”

If any interest payment date, redemption date or the maturity date of the notes is not a business day in any place of payment, then payment of the principal, premium, if any, and interest may be made on the next business day in that place of payment. In that case, no interest will accrue on the amount payable for the period from and after the applicable interest payment date, redemption date or maturity date, as the case may be. The regular record date for all payments of interest on the notes will be the first day of the month in which payment is to be made, whether or not such day is a business day.

We will pay interest on, principal of, and any premium on, the notes at stated maturity, upon redemption or otherwise, as described under “—Book-Entry, Delivery and Form.” The notes initially will be issued in book- entry form and represented by global securities deposited with, or on behalf of, The Depository Trust Company, as Depositary, and registered in the name of Cede & Co., its nominee. This means that you will not be entitled to receive a certificate for the notes that you purchase except in limited circumstances. If any of the notes are issued in certificated form they will be issued only in fully registered form without coupons, in denominations of $1,000 and integral multiples of $1,000.

Ranking

The notes will be our unsecured senior debt obligations and will rank on a parity in right of payment with all of our other unsecured and unsubordinated indebtedness. The notes are our obligations exclusively, and are not the obligations of any of our subsidiaries. Because we conduct our operations primarily through our subsidiaries and substantially all of our consolidated assets are held by our subsidiaries, the notes will be effectively subordinated to all existing and future liabilities (including indebtedness) and preferred equity of our subsidiaries. At March 31, 2023, our subsidiaries had total consolidated liabilities of approximately $56.7 billion, and preferred equity outstanding with a total liquidation value of approximately $1.9 billion. See “Description of the Debt Securities—Ranking—Holding Company Structure” in the accompanying base prospectus.

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Optional Redemption

We will be entitled to redeem the notes at our option as described below. You will not be permitted to require us to redeem or repurchase the notes at your option.

Prior to October 15, 2028 (the “Par Call Date”), we may redeem the notes at our option, in whole or in part, at any time and from time to time, at a “make-whole” redemption price (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of:

(1) (a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date (assuming the notes matured on the Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus basis points less (b) interest accrued to the date of redemption, and

(2) 100% of the principal amount of the notes to be redeemed, plus, in either case, accrued and unpaid interest thereon to but excluding the redemption date.

On or after the Par Call Date, we may redeem the notes, in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest thereon to but excluding the redemption date.

“Treasury Rate” means, with respect to any redemption date for the notes, the yield determined by us in accordance with the following two paragraphs.

The Treasury Rate shall be determined by us after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third business day preceding the redemption date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as “Selected Interest Rates (Daily)—H.15” (or any successor designation or publication) (“H.15”) under the caption “U.S. government securities—Treasury constant maturities—Nominal” (or any successor caption or heading). In determining the Treasury Rate, we shall select, as applicable: (1) the yield for the Treasury constant maturity on H.15 exactly equal to the period from the redemption date to the Par Call Date of the notes (the “Remaining Life”); or (2) if there is no such Treasury constant maturity on H.15 exactly equal to the Remaining Life, the two yields—one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than the Remaining Life—and shall interpolate to the Par Call Date of the notes on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or (3) if there is no such Treasury constant maturity on H.15 shorter than or longer than the Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to the Remaining Life. For purposes of this paragraph, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the redemption date.

If on the third business day preceding the redemption date H.15 or any successor designation or publication is no longer published, we shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second business day preceding such redemption date of the United States Treasury security maturing on, or with a maturity that is closest to, the Par Call Date of the notes. If there is no United States Treasury security maturing on the Par Call Date of the notes but there are two or more United States Treasury securities with a maturity date equally distant from the Par Call Date of the notes, one with a maturity date preceding the Par Call Date and one with a maturity date following the Par Call Date, the Company shall select the United States Treasury security with a maturity date preceding the Par Call Date. If there are two or more United States Treasury securities maturing on the Par Call Date of the notes or two or more United States Treasury securities meeting the criteria of the preceding sentence, we shall select from among these two or more United States Treasury securities the United States Treasury security that is

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trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

Our actions and determinations in determining the redemption price shall be conclusive and binding for all purposes, absent manifest error.

To exercise our option to redeem the notes, we will give you a notice in writing (including by facsimile transmission or electronic mail) of redemption at least 30 days but not more than 60 days prior to the date fixed for redemption. If we elect to redeem fewer than all the notes in the relevant series, The Bank of New York Mellon Trust Company, N.A., as trustee, will select the particular notes, as applicable, to be redeemed by lot; provided, however, that as long as the notes are held with a depositary, any such selection shall be in accordance with such depositary’s applicable procedures. No notes of a principal amount of $1,000 or less will be redeemed in part.

Unless we default in payment of the redemption price, on and after the redemption date interest will cease to accrue on the notes being redeemed. Any notice of redemption, at our option, may state that the redemption will be conditional upon receipt by the paying agent, on or prior to the date fixed for the redemption, of money sufficient to pay the principal, premium, if any, and interest, if any, on the notes and that if the money has not been so received, the notice will be of no force and effect and we will not be required to redeem the notes. See “Description of the Debt Securities—Redemption” in the accompanying base prospectus.

Notwithstanding the foregoing, installments of interest on notes that are due and payable on interest payment dates falling on or prior to a redemption date will be payable on the interest payment date to the registered holders as of the close of business on the relevant record date according to the notes and the indenture.

No Sinking Fund

There will be no provisions for any sinking funds for the notes.

Other

We may, from time to time, without notice to or the consent of the holders of the notes, increase the principal amount of the notes under the indenture and issue such increased principal amount (or any portion thereof), in which case any additional notes so issued shall have the same form and terms (other than the date of issuance, public offering price, and, under certain circumstances, the date from which interest thereon shall begin to accrue and the first interest payment date), and shall carry the same right to receive accrued and unpaid interest as the notes previously issued, and such additional notes shall form a single series with the notes offered by this prospectus supplement, provided that such additional notes shall be fungible with the notes offered by this prospectus supplement for United States federal income tax purposes.

Book-Entry, Delivery, and Form

The notes will be represented by one or more permanent global notes in definitive, fully registered form without interest coupons. Upon issuance, the notes will be deposited with The Bank of New York Mellon Trust Company, N.A., as trustee, as custodian for The Depository Trust Company in New York, New York (which we refer to as “DTC”), and registered in the name of DTC or its nominee.

Ownership of beneficial interests in a global note will be limited to persons who have accounts with DTC, which we refer to as “participants,” or persons who hold interests through participants. Ownership of beneficial interests in a global note will be shown on, and the transfer of that ownership will be effected only through,

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records maintained by DTC or its nominee (with respect to interests of participants) and the records of participants (with respect to interests of persons other than participants).

You may elect to hold interests in a global note either in the United States through DTC or outside the United States through Clearstream Banking, société anonyme (“Clearstream”), or Euroclear Bank, SA/NV, or its successor, as operator of the Euroclear System (“Euroclear”), if you are a participant of such system, or indirectly through organizations that are participants in such systems. Interests held through Clearstream and Euroclear will be recorded on DTC’s books as being held by the U.S. depositary for each of Clearstream and Euroclear, which U.S. depositaries will in turn hold interests on behalf of their participants’ customers’ securities accounts.

So long as DTC, or its nominee, is the registered owner or holder of any of the notes, DTC or that nominee, as the case may be, will be considered the sole owner or holder of such notes represented by the global note for all purposes under the note indenture and the notes. No beneficial owner of an interest in a global note will be able to transfer such interest except in accordance with DTC’s applicable procedures, in addition to those provided for under the note indenture.

Payments of the principal of, and interest on, a global note will be made to DTC or its nominee, as the case may be, as the registered owner thereof. None of the trustee, any paying agent, or we will have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests in a global note or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests.

We expect that DTC or its nominee, upon receipt of any payment of principal or interest in respect of a global note, will credit participants’ accounts with payments in amounts proportionate to their respective beneficial interests in the principal amount of such global note as shown on the records of DTC or its nominee. We also expect that payments by participants to owners of beneficial interests in such global note held through such participants will be governed by standing instructions and customary practices, as is now the case with securities held for the accounts of customers registered in the names of nominees for such customers. Such payments will be the responsibility of such participants.

We expect that transfers between participants in DTC will be effected in the ordinary way in accordance with DTC rules and procedures and will be settled in same-day funds. Secondary market trading between Clearstream participants and/or Euroclear system participants will occur in the ordinary way in accordance with the applicable rules and operating procedures of Clearstream and the Euroclear system, as applicable.

We expect that DTC will take any action permitted to be taken by a holder of notes only at the direction of one or more participants to whose account the DTC interests in a global note is credited and only in respect of such portion of the aggregate principal amount of notes as to which such participant or participants has or have given such direction.

A global note is exchangeable for definitive notes in registered certificate form if:

•

DTC (i) notifies us that it is unwilling or unable to continue as depositary for the global notes, and we fail to appoint a successor depositary, or (ii) has ceased to be a clearing agency registered under the Securities Exchange Act of 1934, as amended; or

•

at our option, we notify the trustee in writing that we have elected to cause the issuance of the certificated securities.

In all cases, certificated securities delivered in exchange for any global note or beneficial interests in global notes will be registered in the names, and issued in any approved denominations, requested by or on behalf of the depositary (in accordance with its customary procedures). Certificated securities may be presented for registration, transfer and exchange at The Bank of New York Mellon Trust Company, N.A., Chicago, Illinois, or the office or agency designated for such purpose.

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DTC has advised us that: DTC is a limited purpose trust company organized under the laws of the State of New York, a “banking organization” within the meaning of New York Banking Law, a member of the Federal Reserve System, a “clearing corporation” within the meaning of the Uniform Commercial Code and a “Clearing Agency” registered pursuant to the provisions of Section 17A of the Exchange Act. DTC was created to hold securities for its participants and facilitate the clearance and settlement of securities transactions between participants through electronic book-entry changes in accounts of its participants, thereby eliminating the need for physical movement of certificates. Indirect access to the DTC system is available to others such as banks, brokers, dealers and trust companies and certain other organizations that clear through or maintain a custodial relationship with a participant, either directly or indirectly, whom we refer to as indirect participants.

Although DTC is expected to follow the foregoing procedures in order to facilitate transfers of interests in a global note among participants of DTC, they are under no obligation to perform or continue to perform such procedures, and such procedures may be discontinued at any time. None of the trustee, the paying agent, nor we will have any responsibility for the performance by DTC or its participants or indirect participants of their respective obligations under the rules and procedures governing their operations.

Settlement and Payment

We will make payments in respect of the notes represented by the global notes (including principal, interest and premium, if any) by wire transfer of immediately available funds to the accounts specified by the global noteholder. We will make all payments of principal, interest and premium with respect to certificated securities by wire transfer of immediately available funds to the accounts specified by the holders thereof or, if no account is specified, by mailing a check to that holder’s registered address. The exchange notes represented by the global notes are expected to trade in DTC’s Same Day Funds Settlement System, and any permitted secondary market trading activity in the notes will, therefore, be required by DTC to be settled in immediately available funds. We expect that secondary trading in any certificated securities will also be settled in immediately available funds.

Global Clearance and Settlement Procedures

Cross-market transfers between persons holding directly or indirectly through DTC on the one hand, and directly or indirectly through Clearstream participants or Euroclear system participants on the other, will be effected through DTC in accordance with DTC rules on behalf of the relevant European international clearing system by its U.S. depositary; however, such cross-market transactions will require delivery of instructions to the relevant European international clearing system by the counterparty in such system in accordance with its rules and procedures and within its established deadlines (European time). The relevant European international clearing system will, if the transaction meets its settlement requirements, deliver instructions to its U.S. depositary to take action to effect final settlement on its behalf by delivering or receiving securities in DTC, and making or receiving payment in accordance with normal procedures for same-day funds settlement applicable to DTC. Clearstream participants and Euroclear system participants may not deliver instructions directly to their respective U.S. depositaries.

Because of time-zone differences, credits of notes received in Clearstream or the Euroclear system as a result of a transaction with a DTC participant will be made during subsequent securities settlement processing and dated the business day following the DTC settlement date. Such credits or any transactions in such notes settled during such processing will be reported to the relevant Euroclear system participant or Clearstream participant on such business day. Cash received in Clearstream or the Euroclear system as a result of sales of the notes by or through a Clearstream participant or a Euroclear system participant to a DTC participant will be received with value on the DTC settlement date but will be available in the relevant Clearstream or the Euroclear system cash account only as of the business day following settlement in DTC.

Although DTC, Clearstream and Euroclear have agreed to the foregoing procedures in order to facilitate transfers of debt securities among participants of DTC, Clearstream and Euroclear, they are under no obligation to perform or continue to perform such procedures and such procedures may be discontinued at any time.

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UNDERWRITING

Mizuho Securities USA LLC, MUFG Securities Americas Inc. and PNC Capital Markets LLC, as representatives of the underwriters named below (the “Representatives”) and as joint book-running managers of the offering, have entered into an underwriting agreement, dated the date of this prospectus supplement, with Edison International relating to the offer and sale of the notes. In the underwriting agreement, Edison International has agreed to sell to each underwriter, and each underwriter has severally agreed to purchase from Edison International, the principal amount of notes set forth opposite its name below:


Underwriter		Principal Amount of Notes to be Purchased
Mizuho Securities USA LLC		$
MUFG Securities Americas Inc.		$
PNC Capital Markets LLC		$
Total		$

The underwriting agreement provides that the obligations of the underwriters to purchase the notes included in this offering are subject to approval of legal matters by counsel and to other conditions. The underwriters are obligated to purchase all the notes if they purchase any of the notes.

The underwriters propose to offer the notes directly to the public at the public offering price set forth on the cover page of this prospectus supplement and may offer the notes to dealers at the public offering price less a concession not to exceed % of the principal amount of the notes. The underwriters may allow, and dealers may reallow a concession not to exceed % of the principal amount of the notes on sales to other dealers. After the initial offering of the notes to the public, the underwriters may change the public offering price and concessions.

In connection with this offering, we will pay an underwriting discount to the underwriters of % of the principal amount of the notes, equal to $ total underwriting discount.

In connection with the offering, the underwriters may purchase and sell notes in the open market. These transactions may include over-allotment, syndicate covering transactions, and stabilizing transactions. Over- allotment involves syndicate sales of notes in excess of the principal amount of notes to be purchased by the underwriter in the offering, which creates a syndicate short position. Syndicate covering transactions involve purchases of the notes in the open market after the distribution has been completed in order to cover syndicate short positions. Stabilizing transactions consist of certain bids or purchases of notes made for the purpose of preventing or retarding a decline in the market price of the notes while the offering is in progress.

The underwriters also may impose a penalty bid. Penalty bids permit the underwriters to reclaim a selling concession from a syndicate member when the underwriters, in covering syndicate short positions or making stabilizing purchases, repurchase notes originally sold by that syndicate member.

Any of these activities may have the effect of preventing or retarding a decline in the market price of the notes. They may also cause the price of the notes to be higher than the price that otherwise would exist in the open market in the absence of these transactions. The underwriters may conduct these transactions in the over-the-counter market or otherwise. If the underwriters commence any of these transactions, they may discontinue them at any time.

We estimate that our total expenses for this offering, excluding the underwriting discounts, will be $ .

Certain of the underwriters and their affiliates have performed investment banking, commercial banking and advisory services for us and our affiliates from time to time for which they have received customary fees and

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expenses. The underwriters and their affiliates may, from time to time, engage in transactions with and perform services for us and our affiliates in the ordinary course of their business.

We expect delivery of the notes will be made against payment therefor on or about May , 2023, which is the third business day after the date of this prospectus supplement. Under Rule 15c6-1 of the Exchange Act, trades in the secondary market generally are required to settle in two business days, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade the notes on the date of this prospectus will be required, by virtue of the fact that the notes initially will not settle in T+2, to specify an alternative settlement cycle at the time of any such trade to prevent a failed settlement and should consult their own advisor.

We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act of 1933, or to contribute to payments the underwriters may be required to make because of any of those liabilities.

Conflicts of Interest

The underwriters and their respective affiliates are full service financial institutions engaged in various activities, which may include securities trading, commercial and investment banking, financial advisory, investment management, investment research, principal investment, hedging, financing and brokerage activities.

In the ordinary course of their various business activities, the underwriters and their respective affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own account and for the accounts of their customers, and such investment and securities activities may involve our securities and instruments or those of our affiliates. See “Use of Proceeds.” The underwriters and their respective affiliates may also make investment recommendations or publish or express independent research views in respect of such securities or instruments and may at any time hold, or recommend to clients that they acquire, long or short positions in such securities and instruments.

Selling Restrictions

No action has been or will be taken by us that would permit a public offering of the notes, or possession or distribution of this prospectus supplement or the accompanying base prospectus or any other offering or publicity material relating to the notes, in any country or jurisdiction outside the United States where, or in any circumstances in which, action for that purpose is required. Accordingly, the notes may not be offered or sold, directly or indirectly, and this prospectus supplement, the accompanying base prospectus and any other offering or publicity material relating to the notes may not be distributed or published, in or from any country or jurisdiction outside the United States except under circumstances that will result in compliance with applicable laws and regulations.

Canada

The notes may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the notes must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.

Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus supplement together with the accompanying prospectus (including any

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amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (“NI 33-105”), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this offering.

European Economic Area

The notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the European Economic Area (“EEA”). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU (as amended, “MiFID II”); or (ii) a customer within the meaning of Directive (EU) 2016/97 (the “Insurance Distribution Directive”), where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (iii) not a qualified investor as defined in Regulation (EU) 2017/1129 (the “Prospectus Regulation”). For the purpose of this provision, the expression “an offer” includes the communication in any form and by any means of sufficient information on the terms of the offer and the notes to be offered so as to enable an investor to decide to purchase or subscribe for the notes. Consequently, no key information document required by Regulation (EU) No 1286/2014 (as amended, the “PRIIPs Regulation”) for offering or selling the notes or otherwise making them available to retail investors in the EEA has been prepared and therefore offering or selling the notes or otherwise making them available to any retail investor in the EEA may be unlawful under the PRIIPs Regulation. This prospectus supplement and the accompanying prospectus have been prepared on the basis that any offer of notes in any Member State of the EEA will be made pursuant to an exemption under the Prospectus Regulation from the requirement to publish a prospectus for offers of notes. This prospectus supplement and the accompanying prospectus are not a prospectus for the purposes of the Prospectus Regulation.

United Kingdom

The notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the United Kingdom (“UK”). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client, as defined in point (8) of Article 2 of Regulation (EU) No 2017/565 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 (“EUWA”); or (ii) a customer within the meaning of the provisions of the Financial Services and Markets Act 2000 (“FSMA”) and any rules or regulations made under the FSMA to implement Directive (EU) 2016/97, where that customer would not qualify as a professional client, as defined in point (8) of Article 2(1) of Regulation (EU) No 600/2014 as it forms part of UK domestic law by virtue of the EUWA; or (iii) not a qualified investor as defined in Article 2 of Regulation (EU) 2017/1129 as it forms part of UK domestic law by virtue of the EUWA (the “UK PRIIPs Regulation”). For the purpose of this provision, the expression “an offer” includes the communication in any form and by any means of sufficient information on the terms of the offer and the notes to be offered so as to enable an investor to decide to purchase or subscribe for the notes. Consequently, no key information document required by Regulation (EU) No 1286/2014 as it forms part of UK domestic law by virtue of the UK PRIIPs Regulation for offering or selling the notes or otherwise making them available to retail investors in the UK has been prepared and therefore offering or selling the notes or otherwise making them available to any retail investor in the UK may be unlawful under the UK PRIIPs Regulation.

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referred to as “relevant persons”). The notes are only available to, and any invitation, offer or agreement to subscribe, purchase or otherwise acquire such notes will be engaged in only with, relevant persons. Any person who is not a relevant person should not act or rely on this document or any of its contents.

Hong Kong

The notes have not been and will not be offered or sold in Hong Kong by means of any document other than (i) to “professional investors” as defined in the Securities and Futures Ordinance (Cap. 571 of the Laws of Hong Kong) (the “SFO”) and any rules made thereunder, or (ii) in other circumstances which do not result in the document being a “prospectus” within the meaning of the Companies (Winding Up and Miscellaneous Provisions) Ordinance (Cap. 32 of the Laws of Hong Kong) (the “C(WUMP)O”) or which do not constitute an offer to the public within the meaning of the C(WUMP)O. No advertisement, invitation or document relating to the notes have been or will be issued or have been or will be in the possession of any person for the purpose of issue (in each case, whether in Hong Kong or elsewhere), which is directed at, or the contents of which are likely to be accessed or read by, the public in Hong Kong (except if permitted to do so under the securities laws of Hong Kong) other than with respect to the notes which are or are intended to be disposed of only to persons outside Hong Kong or only to “professional investors” as defined in the SFO and any rules made thereunder.

Japan

The notes have not been and will not be registered under the Financial Instruments and Exchange Act of Japan (Act No. 25 of 1948 as amended, the “FIEA”) and each underwriter has represented and agreed that it has not, directly or indirectly offered or sold and will not, directly or indirectly offer or sell any notes, in Japan or to, or for the account or benefit of, any resident of Japan (which term as used herein means any person resident in Japan, including any corporation or other entity organized under the laws of Japan), or to others for re-offering or resale, directly or indirectly, in Japan or to, or for the account or benefit of, a resident of Japan, except pursuant to an exemption from the registration requirements of, and otherwise in compliance with, the FIEA and any other applicable laws, regulations and ministerial guidelines of Japan.

Singapore

This prospectus supplement and the accompanying prospectus have not been and will not be registered as a prospectus with the Monetary Authority of Singapore under the Securities and Futures Act 2001 (2020 Revised Edition) of Singapore (as modified and/or amended from time to time, the “SFA”). Accordingly, this prospectus and any other document or material in connection with the offer or sale, or invitation for subscription or purchase, of the notes have not been and will not be circulated or distributed, nor have the notes been or will the notes be offered or sold, or be made the subject of an invitation for subscription or purchase, whether directly or indirectly, to persons in Singapore other than (i) to an institutional investor (as defined in Section 4A of the SFA) pursuant to Section 274 of the SFA; (ii) to a relevant person (as defined in Section 275(2) of the SFA) pursuant to Section 275(1) of the SFA, or any person pursuant to Section 275(1A) of the SFA, and in accordance with the conditions specified in Section 275 of the SFA; or (iii) otherwise pursuant to, and in accordance with the conditions of, any other applicable provision of the SFA.

Where the notes are subscribed or purchased under Section 275 of the SFA by a relevant person which is:

•

a corporation (which is not an accredited investor (as defined in Section 4A of the SFA)), the sole business of which is to hold investments and the entire share capital of which is owned by one or more individuals, each of whom is an accredited investor; or

•

a trust (where the trustee is not an accredited investor (as defined in Section 4A of the SFA)) whose sole purpose is to hold investments and each beneficiary of the trust is an individual who is an accredited investor,

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securities or securities-based derivatives contracts (each term as defined in Section 2(1) of the SFA) of that corporation or the beneficiaries’ rights and interest (howsoever described) in that trust shall not be transferred within six months after that corporation or that trust has acquired the notes pursuant to an offer made under Section 275 of the SFA except:

•

to an institutional investor or to a relevant person defined in Section 275(2) of the SFA, or to any person arising from an offer referred to in Section 275(1A), or Section 276(4)(i)(B) of the SFA;

•

where no consideration is or will be given for the transfer;

•

where the transfer is by operation of law;

•

as specified in Section 276(7) of the SFA; or

•

as specified in Regulation 37A of the Securities and Futures (Offers of Investments) (Securities and Securities-based Derivatives Contracts) Regulations 2018 of Singapore.

SFA Product Classification—In connection with Section 309B(1)(a) and Section 309B(1)(c) of the SFA and the Securities and Futures (Capital Markets Products) Regulations 2018 (the “CMP Regulations 2018”), unless otherwise specified before an offer of notes, we have determined, and hereby notify all persons (including all relevant persons (as defined in Section 309A(1) of the SFA)), that the notes are “prescribed capital markets products” (as defined in the CMP Regulations 2018) and Excluded Investment Products (as defined in MAS Notice SFA 04-N12: Notice on the Sale of Investment Products and MAS Notice FAA-N16: Notice on Recommendations on Investment Products).

Switzerland

Neither this prospectus supplement nor any other offering or marketing material relating to the notes constitutes a prospectus as such term is understood pursuant to article 652a or article 1156 of the Swiss Code of Obligations or a listing prospectus within the meaning of the listing rules of the SIX Swiss Exchange or any other regulated trading facility in Switzerland, and neither this prospectus supplement nor any other offering or marketing material relating to the notes may be publicly distributed or otherwise made publicly available in Switzerland.

Taiwan

The notes have not been and will not be registered or filed with the Financial Supervisory Commission of Taiwan, the Republic of China (“Taiwan”) and/or other regulatory authority or agency of Taiwan, pursuant to relevant securities laws and regulations of Taiwan and may not be issued, offered or sold in Taiwan through a public offering or in circumstances which would constitute an offer within the meaning of the Securities and Exchange Act of Taiwan or relevant laws and regulations that would otherwise require registration, filing, or approval of the Financial Supervisory Commission of Taiwan and/or other regulatory authority or agency of Taiwan. No person or entity in Taiwan has been authorized to offer or sell the notes in Taiwan, unless otherwise permitted by Taiwan laws and regulations.

People’s Republic of China (excluding Hong Kong, Macau and Taiwan)

The notes are not being offered or sold and may not be offered or sold, directly or indirectly, in the People’s Republic of China, or the “PRC” (for such purposes, not including the Hong Kong and Macau Special Administrative Regions or Taiwan) (a) by means of any advertisement, invitation, document or activity which is directed at, or the contents of which are likely to be accessed or read by, the public in the PRC, (b) to any person within the PRC, or (c) to any person for re-offering, resale or redelivery to any person within the PRC, except as permitted by all relevant laws and regulations of the PRC.

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This prospectus supplement and the accompanying base prospectus (i) have not been filed with or approved by or registered with the PRC authorities and (ii) do not constitute an offer to sell, or the solicitation of an offer to buy, any notes in the PRC to any person to whom it is unlawful to make the offer of solicitation in the PRC.

Investors in the PRC are responsible for obtaining all relevant government regulatory approvals/licenses, verification and/or registrations themselves, including, but not limited to, those which may be required by the China Securities Regulatory Commission, the State Administration of Foreign Exchange and/or the China Banking Regulatory Commission, and complying with all relevant PRC laws and regulations, including, but not limited to, all relevant foreign exchange regulations and/or securities investment regulations.

Republic of Korea

The notes have not been and will not be registered with the Financial Services Commission of Korea for public offering in Korea under the Financial Investment Services and Capital Markets Act and its subordinate decrees and regulations (collectively, the “FSCMA”). None of the notes may be offered, sold and delivered, directly or indirectly, or offered or sold to any person for re-offering or resale, directly or indirectly, in Korea or to, or for the account or benefit of, any resident of Korea except as otherwise permitted under the applicable laws and regulations of Korea, including the FSCMA and the Foreign Exchange Transaction Law of Korea and its subordinate decrees and regulations (collectively, the “FETL”). Without prejudice to the foregoing, the number of the notes offered in Korea or to a resident in Korea shall be less than fifty, and for a period of one year from the issue date of the notes, none of the notes may be divided resulting in an increased number of the notes. Furthermore, the notes may not be resold to Korean residents unless the purchaser of the notes complied with all applicable regulatory requirements (including but not limited to government reporting requirements under the FETL) in connection with the purchase of the notes.

United Arab Emirates

This prospectus supplement and the accompanying base prospectus have not been reviewed, approved or licensed by the Central Bank of the United Arab Emirates (the “UAE”), the Emirates Securities and Commodities Authority (the “SCA”) or any other relevant licensing authority in the UAE including any licensing authority of any of the free zones established and operating in the UAE including, without limitation, the Dubai Financial Services Authority (the “DFSA”), a regulatory authority of the Dubai International Financial Centre (the “DIFC”) and the Financial Services Regulatory Authority (the “FSRA”), a regulatory authority of the Abu Dhabi Global Market (the “ADGM”). The person or entity to whom this prospectus supplement and the accompanying base prospectus have been issued acknowledges and agrees that this prospectus supplement and the accompanying base prospectus have not been reviewed, approved or licensed by the UAE Central Bank, the SCA, the DFSA, the FSRA or any other relevant licensing authority in the UAE.

This prospectus supplement and the accompanying base prospectus are not intended to, and do not, constitute an offer, sale or delivery of shares or other securities under the laws of the UAE (including the DIFC and the ADGM). Each underwriter has represented and agreed that the notes have not been and will not be registered with the SCA, the UAE Central Bank, the Dubai Financial Market, the Abu Dhabi Securities Market or any other UAE regulatory authority or exchange.

The issue and/or sale of the notes has not been approved or licensed by the SCA, the UAE Central Bank or any other relevant licensing authority in the UAE, including the FSRA and the DFSA, and does not constitute a public offer of securities in the UAE under any laws or regulations applicable in the UAE (including the DIFC and the ADGM).

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LEGAL MATTERS

Michael A. Henry, Assistant General Counsel, will pass upon the legality of the notes for us. Certain legal matters will be passed upon for the underwriters by Cleary Gottlieb Steen & Hamilton LLP, New York, New York.

Mr. Henry is a salaried employee of Southern California Edison Company and earns stock-based compensation based on Edison International’s common stock. Additionally, he may hold Edison International stock-based interests through an employee benefit plan and can participate in an Edison International shareholder dividend reinvestment and stock purchase plan.

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PROSPECTUS

LOGO

EDISON INTERNATIONAL

Debt Securities

Preferred Stock

Common Stock

We may offer and sell an indeterminate amount of the securities listed above, or any combination thereof, from time to time in amounts, at prices and on other terms to be determined at the time of the offering. We may sell these securities to or through one or more underwriters, dealers and agents, or directly to purchasers, on a continuous or delayed basis. In addition, selling securityholders may also sell their shares of common stock, from time to time, if so identified and on terms described in the applicable prospectus supplement or pricing supplement.

This prospectus describes some of the general terms that may apply to these securities and the general manner in which they may be offered. The specific terms of any securities to be offered, and the specific manner in which they may be offered, will be described in a supplement or supplements to this prospectus and any pricing supplement.The supplement or supplements may also add, update or change information contained in this prospectus. You should carefully read this prospectus and any supplement for the specific offering before you invest in any of the securities.

A prospectus supplement will set forth the names of any underwriters, dealers or agents involved in the sale of the securities, the principal amounts of securities to be purchased by them, and the compensation they will receive.Our common stock is listed on the New York Stock Exchange under the symbol “EIX”.

Investing in our securities involves risks. See “Risk Factors” on page 2 of this prospectus and the risk factors included in the applicable prospectus supplement and in the documents incorporated by reference in this prospectus and in any accompanying supplement that we prepare or authorize.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this Prospectus is July 29, 2021

TABLE OF CONTENTS


	Page
About This Prospectus		1
Forward-Looking Statements		1
Edison International		2
Risk Factors		2
Use of Proceeds		2
Description of the Debt Securities		2
Description of Common Stock and Preferred Stock		12
Plan of Distribution		15
Experts		16
Validity of the Securities		16
Where You Can Find More Information		16

ABOUT THIS PROSPECTUS

This prospectus is provided by Edison International which is sometimes referred to in this prospectus by the terms “we,” “us” and “our.” We refer to the our debt securities, common stock and preferred stock together as “securities.”

This prospectus is part of a “shelf” registration statement filed with the United States Securities and Exchange Commission. By using a shelf registration statement, we may sell the securities described in this prospectus from time to time in one or more offerings. This prospectus only provides you with a general description of the securities that we may offer. Each time we sell securities, we will provide a supplement to this prospectus that contains specific information about the terms of the securities. The supplement may also add, delete, update or change information contained in this prospectus. You should rely on the information in the applicable supplement if this prospectus and the supplement are inconsistent. Before purchasing any securities, you should carefully read both this prospectus and any applicable supplement, together with the additional information described under the heading “Where You Can Find More Information.”

We are responsible for the information contained and incorporated by reference in this prospectus, in any accompanying supplement and in any applicable free writing prospectus that we prepare or authorize. We have not authorized anyone to provide you with any other information, and we take no responsibility for any other information that others may provide you. We will not make an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus and any supplement is accurate only as of the dates on their respective covers, or any earlier dates specified therein. Our business, financial condition, results of operations and prospects may have changed since those respective dates.

FORWARD-LOOKING STATEMENTS

This prospectus, any accompanying supplement and the additional information described under the heading “Where You Can Find More Information” may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act, and Section 21E of the Exchange. The words “believes,” “expects,” “anticipates,” “intends,” “plans,” “estimates,” “projects,” “probable,” “may,” “will,” “could,” “would,” “should,” and variations of such words and similar expressions, or discussions of strategy or of plans, are intended to identify forward-looking statements. Such statements necessarily involve risks and uncertainties that could cause actual results to differ materially from those anticipated. Various factors may cause actual results to be materially different than the suggested outcomes within forward-looking statements; accordingly, there is no assurance that such results will be realized. Some of the risks, uncertainties and other important factors that could cause results to differ from those currently expected, or that otherwise could impact us or the value of our securities, are described under the headings “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” “Forward-Looking Statements” and “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2020, and in subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K incorporated by reference into this prospectus.

We urge you to read this entire prospectus, including any supplement and the information incorporated by reference, and carefully consider the risks, uncertainties and other factors that affect our business. In light of these risks, uncertainties and assumptions, the events described in the forward-looking statements included or incorporated by reference in this prospectus might not occur or might occur to a different extent or at a different time than described. Forward-looking statements are made based on information currently available to us and speak only as of the date they are made and we expressly disclaim an obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. You should review future reports we file with the Securities and Exchange Commission.

EDISON INTERNATIONAL

Edison International is the parent holding company of Southern California Edison Company (“SCE”). SCE is an investor-owned public utility primarily engaged in the business of supplying and delivering electricity to an approximately 50,000 square mile area of southern California. Edison International also owns or holds interests in companies that are competitive businesses engaged in providing energy services to commercial and industrial customers. Based in Rosemead, California, Edison International was incorporated in California in 1987.

The mailing address and telephone number of our principal executive offices are P.O. Box 976, Rosemead, CA 91770 and (626) 302-2222.

RISK FACTORS

Investing in our securities involves risks. Before purchasing any securities we offer, you should carefully consider the risk factors that are incorporated by reference herein from the section captioned “Risk Factors” in our most recent Annual Report on Form 10-K, together with all of the other information included in this prospectus and any prospectus supplement and any other information that we have incorporated by reference, including filings made with the Securities and Exchange Commission subsequent to the date hereof. Any of these risks, as well as other risks and uncertainties, could harm our financial condition, results of operations or cash flows.

USE OF PROCEEDS

Except as otherwise described in a prospectus supplement, we intend for the net proceeds of the offered securities to be used for general corporate purposes.

DESCRIPTION OF THE DEBT SECURITIES

The following is a general description of the terms and provisions of the debt securities we may offer and sell by this prospectus in one or more distinct offerings. This summary is not meant to be a complete description of each series of debt securities. This prospectus and any accompanying prospectus supplement will contain the particular terms and conditions for each series of debt securities. For more information about the debt securities, please refer to the indenture dated as of September 10, 2010 between Edison International and The Bank of New York Mellon Trust Company, N.A., as trustee, for the issuance of debt securities, which we refer to as the “indenture” in this prospectus.

We have filed a copy of the indenture as an exhibit to the registration statement that includes this prospectus. We refer to the trustee for the indenture as the “indenture trustee.” The indenture is governed by the Trust Indenture Act of 1939 and may be supplemented or amended from time to time.

The indenture gives us broad authority to set the particular terms of each series of debt securities, including the right to modify certain of the terms contained in the indenture. The particular terms of a series of debt securities and the extent, if any, to which the particular terms of the series modify the terms of the indenture will be described in the prospectus supplement relating to the debt securities.

The indenture contains the full legal text of the matters described in this section. Because this section is a summary, it does not describe every aspect of the debt securities or the indenture. This summary is subject to and qualified by all the provisions of the indenture, including definitions of terms used in the indenture. Therefore, you should read carefully the detailed provisions of the indenture, which we have incorporated by reference as an exhibit to the registration statement that includes this prospectus. This summary also is subject to and qualified by the description of the particular terms of the debt securities in the applicable prospectus supplement.

General

We may issue an unlimited amount of debt securities under the indenture in one or more series. We need not issue all debt securities of one series at the same time and, unless otherwise provided, we may reopen a series, without the consent of the holders of the debt securities of that series, for issuances of additional debt securities of that series.

Prior to the issuance of each series of debt securities, the terms of the particular debt securities will be specified in a supplemental indenture (including any pricing supplement) or in one or more officer’s certificates of Edison International pursuant to a supplemental indenture or a board resolution. We refer you to the applicable prospectus supplement for a description of the following terms, among others, of the series of debt securities:

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the title of the debt securities;

•

any limit upon the aggregate principal amount of the debt securities of that series;

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the date or dates on which principal will be payable or how to determine the dates;

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the rate or rates or method of determination of interest; the date from which interest will accrue; the dates on which interest will be payable, which we refer to as the “interest payment dates;” and any record dates for the interest payable on the interest payment dates;

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any obligation or option of Edison International to redeem, purchase or repay debt securities, or any option of the registered holder to require Edison International to redeem or repurchase debt securities, and the terms and conditions upon which the debt securities will be redeemed, purchased or repaid;

•

the denominations in which the debt securities will be issuable (if other than denominations of $1,000 and any integral multiple of $1,000 in excess thereof);

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any provision relating to deferral of interest payments;

•

whether the debt securities are subject to discharge or defeasance at our option;

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whether the debt securities are to be issued in whole or in part in the form of one or more global debt securities and, if so, the identity of the depositary for the global debt securities; and

•

any other terms of the debt securities.

Ranking

The debt securities will be unsecured senior debt obligations of Edison International. The indebtedness represented by the debt securities will rank equally with all other unsecured and unsubordinated debt of Edison International.

Holding Company Structure

Edison International conducts its operations through its subsidiaries and substantially all of its consolidated assets are held by its subsidiaries. Accordingly, Edison International’s cash flow and its ability to meet its obligations under its debt securities are largely dependent upon the earnings of its subsidiaries and the distribution or other payment of these earnings to Edison International. The subsidiaries are separate and distinct legal entities and have no obligation to pay any amounts due on the Edison International debt securities or to make any funds available for payment of amounts due on these debt securities.

Because Edison International is a holding company, its obligations under the debt securities will be structurally subordinated to all existing and future liabilities and preferred equity of its subsidiaries. Therefore, the rights of Edison International’s creditors, including the rights of the holders of the debt securities issued by Edison International, to participate in the assets of any subsidiary upon the liquidation or reorganization of the

subsidiary will depend on the rights of Edison International against the subsidiary. In that regard, Edison International’s equity interest in the subsidiary would be subject to the prior claims of the subsidiary’s creditors and preferred stockholders. To the extent that Edison International may itself be a creditor with recognized claims against any of its subsidiaries, Edison International’s claims would be subordinated to any security interest in, or mortgages or other liens on, the assets of the subsidiary or any other indebtedness or other liabilities of the subsidiary that are senior to the claims held by Edison International.

Payment of Debt Securities—Interest

Unless indicated otherwise in an applicable prospectus supplement, we will pay interest on the debt security on each interest payment date to the person in whose name the debt security is registered as of the close of business on the regular record date relating to the interest payment date.

Unless otherwise specified in connection with a particular offering of debt securities:

•

if an interest payment date falls on a day that is not a Business Day, the payment due on such interest payment date will be postponed to the next succeeding Business Day and no further interest will accrue in respect of such postponement;

•

interest will be computed on the basis of a 360-day year consisting of twelve 30-day months; provided that the amount of interest payable for any period shorter or longer than a full interest period will be computed on the basis of a 360-day year consisting of twelve 30-day months and the actual number of days elapsed in the period using 30-day months; and

•

in this section, “Business Day” means any day which is a day on which commercial banks settle payments and are open for general business in Los Angeles, California.

If a date for payment of interest or principal on the debt securities falls on a day that is not a business day in the place of payment, such payment will be made on the next succeeding business day in such place of payment as if made on the date the payment was due. No interest will accrue on any amounts payable for the period from and after the due date for payment of such principal or interest.

If we default in paying interest on a debt security, we will pay defaulted interest in either of the two following ways:

•

We will first propose to the indenture trustee a payment date for the defaulted interest. Next, the indenture trustee will choose a special record date for determining which registered holders are entitled to the payment. The special record date will be between 10 and 15 days before the payment date we propose. Finally, we will pay the defaulted interest on the payment date to the registered holder of the debt security as of the close of business on the special record date.

•

Alternatively, we can propose to the indenture trustee any other lawful manner of payment, provided that is not inconsistent with the requirements of any securities exchange on which the debt securities are listed for trading, if any. If the indenture trustee deems the proposal is practicable, payment will be made as proposed.

Payment of Debt Securities—Principal

Unless indicated otherwise in an applicable prospectus supplement, we will pay principal of and any premium on the debt securities at stated maturity, upon redemption or otherwise, upon presentation of the debt securities at the office of the indenture trustee, as our initial paying agent. Any other paying agent initially designated for the debt securities of a particular series will be named in the applicable prospectus supplement.

In our discretion, we may change the place of payment on the debt securities, and may remove any paying agent, may appoint one or more additional paying agents, and may act as our own paying agent.

If the stated maturity of the debt securities falls on a day that is not a Business Day, the payment due at stated maturity will be postponed to the next succeeding Business Day, and no further interest will accrue in respect of such postponement.

Form; Transfers; Exchanges

Unless we indicate otherwise in an applicable prospectus supplement, the debt securities will be issued

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only in fully registered form;

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without interest coupons; and

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in denominations of $1,000 and any integral multiple of $1,000 in excess thereof.

Global Debt Securities

We may issue debt securities of any series in whole or in part in the form of one or more global debt securities that will be deposited with, or on behalf of, The Depositary Trust Company (“DTC”) or a depositary identified in the prospectus supplement relating to that series. Unless and until it is exchanged in whole or in part for individual certificates evidencing debt securities in definitive form, a global security may not be transferred except as a whole by the depositary for that global security to a nominee of that depositary, or by a nominee of that depositary to that depositary or another nominee of that depositary, or by that depositary or that nominee to a successor of that depositary or a nominee of that successor. We will describe the specific terms of the depositary arrangement for a series of debt securities, and how that arrangement may affect the process for receiving payments on the debt securities, in the prospectus supplement relating to that series.

Exchange

You may have your debt securities divided into debt securities of smaller denominations (of at least $1,000) or combined into debt securities of larger denominations, as long as the total principal amount is not changed. This is called an “exchange.”

You may exchange or transfer debt securities (other than debt securities represented by a global security) at the office of the indenture trustee. The indenture trustee acts as our agent for registering debt securities in the names of holders and transferring debt securities (other than debt securities represented by a global security). We may appoint another agent or act as our own agent for this purpose. The entity performing the role of maintaining the list of registered holders is called the “security registrar.” It will also perform transfers, if applicable.

In our discretion, we may change the place for registration of transfer of the debt securities (other than debt securities represented by a global security) and may remove and/or appoint one or more additional security registrars.

Except as otherwise provided in a prospectus supplement, there will be no service charge for any transfer or exchange of the debt securities, but you may be required to pay a sum sufficient to cover any tax or other governmental charge payable in connection with the transfer or exchange. We may block the transfer or exchange of (a) debt securities during a period of 15 days prior to mailing any notice of redemption or (b) any debt security selected for redemption in whole or in part, except the unredeemed portion of any debt security being redeemed in part.

Redemption

We will set forth any terms for the redemption of debt securities in a prospectus supplement. Unless we indicate otherwise in a prospectus supplement, and except with respect to debt securities redeemable at the option

of the registered holder, debt securities will be redeemable upon notice mailed between 30 and 60 days prior to the redemption date. Any prospectus supplement may provide that the notice of redemption of the debt securities may state that such redemption shall be conditional, in our discretion, on one or more conditions precedent, and that such conditional notice of redemption may be rescinded by us if we determine that any or all such conditions will not be satisfied by the redemption date, and that in such event, such redemption notice shall be of no further force or effect and we shall not be required to redeem the debt securities on the redemption date or otherwise. If less than all of the debt securities of any series or any tranche of a series are to be redeemed, the indenture trustee will select the debt securities to be redeemed. In the absence of any provision for selection, the indenture trustee will choose a method of random selection it deems fair and appropriate.

Debt securities will cease to bear interest on the redemption date. We will pay the redemption price and any accrued interest to but excluding the redemption date once you surrender the debt security for redemption. If only part of a debt security is redeemed, the indenture trustee will deliver to you a new debt security of the same series for the remaining portion without charge.

We may make any redemption conditional upon the receipt by the paying agent, on or prior to the date fixed for redemption, of money sufficient to pay the redemption price. If the paying agent has not received the money by the date fixed for redemption, the redemption will not occur.

Events of Default

An “event of default” occurs with respect to debt securities of any series if:

(a)

we do not pay any interest on any debt securities of the applicable series within 30 days of the due date (following any deferral allowed under the terms of the debt securities and elected by us);

(b)

we do not pay principal or premium on any debt securities of the applicable series on the due date;

(c)

we do not pay any sinking fund installment on debt securities of the series within 60 days of the due date;

(d)

we remain in breach of a covenant (excluding covenants not applicable to the affected series) of the indenture for 90 days after we receive a written notice of default stating we are in breach and requiring remedy of the breach; the notice must be sent by either the indenture trustee or registered holders of at least 33% of the principal amount of debt securities of the affected series;

(e)

we file for bankruptcy or other specified events in bankruptcy, insolvency, or reorganization occur; or

(f)

any other event of default specified in the applicable prospectus supplement occurs.

No event of default with respect to a series of debt securities necessarily constitutes an event of default with respect to the debt securities of any other series issued under the indenture.

Remedies

Acceleration

If an event of default occurs and is continuing with respect to any series of debt securities, then either the indenture trustee or the registered holders of not less than 33% in principal amount of the outstanding debt securities of that series may declare the principal amount of all of the debt securities of that series to be due and payable immediately. If an event of default described in clauses (d) or (e) of “— Events of Default” above occurs and is continuing with respect to all series of debt securities, then either the indenture trustee or the registered holders of not less than 33% in principal amount of all outstanding debt securities may declare the principal amount of all outstanding debt securities to be due and payable immediately.

Rescission of Acceleration

After the declaration of acceleration has been made and before the indenture trustee has obtained a judgment or decree for payment of the money due on any series or all series of debt securities, as the case may be, the registered holders of not less than a majority in aggregate principal amount of the outstanding debt securities of that series or all series may rescind and annul the declaration and its consequences, if:

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we pay or deposit with the indenture trustee a sum sufficient to pay:

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all overdue interest;

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the principal of and any premium which have become due other than by the declaration of acceleration and overdue interest on these amounts;

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interest on overdue interest to the extent lawful;

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all amounts due to the indenture trustee under the indenture; and

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all events of default with respect to the affected series, other than the nonpayment of the principal which has become due solely by the declaration of acceleration, have been cured or waived as provided in the indenture.

For more information as to waiver of defaults, see “Waiver of Default and of Compliance” below.

Control by Registered Holders; Limitations

Subject to the indenture, if an event of default with respect to the debt securities of any series occurs and is continuing, the registered holders of a majority in principal amount of the outstanding debt securities of that series will have the right to

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direct the time, method and place of conducting any proceeding for any remedy available to the indenture trustee; or

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exercise any trust or power conferred on the indenture trustee with respect to the debt securities of the series.

If an event of default is continuing with respect to all the series of debt securities, the registered holders of a majority in aggregate principal amount of the outstanding debt securities of all the series, considered as one class, will have the right to make such direction, and not the registered holders of the debt securities of any one of the series. These rights of registered holders to make direction are subject to the following limitations:

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the registered holders’ directions will not conflict with any law or the indenture; and

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the registered holders’ directions may be declined to be followed by the indenture trustee where the indenture trustee determines such directions would involve it in personal liability.

The indenture trustee may also take any other action it deems proper which is consistent with the registered holders’ direction.

In addition, the indenture provides that no registered holder of any debt security of any series will have any right to institute any proceeding, judicial or otherwise, with respect to the indenture for the appointment of a receiver or for any other remedy under the indenture unless

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that registered holder has previously given the indenture trustee written notice of a continuing event of default;

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the registered holders of not less than 33% in aggregate principal amount of the outstanding debt securities of all the affected series, considered as one class, or, in the case of an event of default

described in clauses (a), (b) or (c) of “Events of Default,” above, that series, have made written request to the indenture trustee to institute proceedings in respect of that event of default and have offered the indenture trustee indemnity satisfactory to it against costs and liabilities incurred in complying with the request; and

•

for 60 days after receipt of the notice request and offer of such indemnity, the indenture trustee has failed to institute a proceeding and no direction inconsistent with the request has been given to the indenture trustee during the 60-day period by the registered holders of a majority in aggregate principal amount of outstanding debt securities of all the series, considered as one class, or, in the case of an event of default described in clauses (a), (b) or (c) of “Events of Default,” above, that series.

Furthermore, no registered holder will be entitled to institute any action if and to the extent that the action would disturb or prejudice the rights of other registered holders, seek to obtain priority or preference over other registered holders or enforce any right under the indenture except as provided in the indenture and for the equal and ratable benefit of all registered holders.

However, each registered holder has an absolute and unconditional right to receive payment when due and to bring a suit to enforce that right.

Notice of Default

The indenture trustee is required to give the registered holders of the debt securities notice of any default under the indenture to the extent required by the Trust Indenture Act of 1939, unless the default has been cured or waived; except that in the case of an event of default of the character specified above in clause (d) under “Events of Default,” no notice shall be given to the registered holders until at least 30 days after the occurrence thereof.

The Trust Indenture Act of 1939 currently permits the indenture trustee to withhold notices of default (except for certain payment defaults) if the indenture trustee in good faith determines the withholding of the notice to be in the interests of the registered holders.

We will furnish the indenture trustee with a statement each calendar year as to our compliance with the conditions and covenants in the indenture.

Waiver of Default and of Compliance

The registered holders of a majority in aggregate principal amount of the outstanding debt securities of all affected series (voting as one class) may waive, on behalf of the registered holders of all debt securities of all such series, any past default under the indenture, except a default in the payment of principal, premium or interest, or with respect to compliance with certain provisions of the indenture that cannot be amended without the consent of the registered holder of each outstanding debt security.

Compliance with some of the covenants in the indenture or otherwise provided with respect to debt securities may be waived by the registered holders of a majority in aggregate principal amount of the affected debt securities, considered as one class.

Covenants

Consolidation, Merger and Conveyance of Assets as an Entirety

Subject to the provisions described in the next paragraph, Edison International will preserve its corporate existence.

Edison International has agreed not to consolidate with or merge into any other entity and not to convey, transfer or lease its properties and assets substantially as an entirety to any entity, unless:

•

the entity formed by the consolidation or into which Edison International is merged, or the entity which acquires or which leases the property and assets of Edison International substantially as an entirety, is an entity organized and existing under the laws of the United States of America or any State of the United States or the District of Columbia, and expressly assumes, by supplemental indenture, the due and punctual payment of the principal, premium and interest on all the outstanding debt securities and the performance of all of the covenants of Edison International under the indenture;

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immediately after giving effect to the transactions, no event of default, and no event which after notice or lapse of time or both would become an event of default, will have occurred and be continuing; and

•

we have given the indenture trustee an officers’ certificate and legal opinion that all conditions in the indenture relating to the transactions have been complied with.

Notwithstanding the foregoing, we may merge or consolidate with or transfer all or substantially all of its assets to an affiliate that has no significant assets or liabilities and was formed for the purpose of changing our jurisdiction of organization or our form of organization; provided that the successor assumes all of our obligations under the indenture.

No Financial Covenants

The indenture contains no financial or other similar restrictive covenants. Any such covenants with respect to any particular series of debt securities will be set forth in the applicable prospectus supplement.

Modification of Indenture

Without Registered Holder Consent

Without the consent of any registered holders of debt securities, we and the applicable indenture trustee may enter into one or more supplemental indentures for any of the following purposes:

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to evidence the succession of another entity to Edison International;

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to add one or more covenants of Edison International or other provisions for the benefit of the registered holders of all or any series or tranche of debt securities, or to surrender any right or power conferred upon Edison International;

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to add any additional events of default for all or any series of debt securities;

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to add to, change or eliminate any provision of the indenture that does not adversely affect the interests of the registered holders in any material respect;

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to provide security for the debt securities of any series;

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to add guarantors for the debt securities of any series;

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to establish the form or terms of debt securities of any series or tranche or any debt securities guarantees as permitted by the indenture;

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to provide for the issuance of bearer securities;

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to evidence and provide for the acceptance of appointment of a separate or successor indenture trustee;

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to provide for the procedures required to permit the utilization of a noncertificated system of registration for any series or tranche of debt securities;

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to cure any ambiguity, defect or inconsistency or to make any other changes, provided that any such action does not adversely affect the interests of the holders of the debt securities in any material respect;

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to comply with the rules or regulations of any securities exchange or automated quotation system on which any series or tranche of debt securities may be listed or traded;

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to qualify the indenture under the Trust Indenture Act of 1939 or to add to the indenture any provisions expressly required by the Trust Indenture Act of 1939; or

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to conform the indenture or any debt securities to the relevant description in this prospectus, a prospectus supplement or other disclosure document, provided that such changes do not adversely affect the interests of the holders of the debt securities in any material respect.

If the Trust Indenture Act of 1939 is amended after the date of the indenture so as to require changes to the indenture or so as to permit changes to, or the elimination of, provisions which, at the date of the indenture or at any time thereafter, were required by the Trust Indenture Act of 1939 to be contained in the indenture, the indenture will be deemed to have been amended so as to conform to the amendment or to effect the changes or elimination, regardless of whether Edison International and the applicable indenture trustee enter into one or more supplemental indentures to effect or evidence the amendment as described above.

In our discretion, with notice to the indenture trustee, we may change any place or places where:

•

we may pay principal, premium and interest;

•

debt securities may be surrendered for transfer or exchange; or

•

notices and demands to or upon Edison International may be served.

With Registered Holder Consent

We and the indenture trustee may, with some exceptions, amend or modify any indenture with the consent of the registered holders of at least a majority in aggregate principal amount of the debt securities of all series affected by the amendment or modification (voting as one class). However, no amendment or modification may, without the consent of the registered holder of each outstanding debt security affected thereby:

•

change the stated maturity of the principal or interest on any debt security (other than pursuant to the terms of the debt security), or reduce the principal amount, interest or premium payable or change the currency in which any debt security is payable, or impair the right provided for in the indenture to bring suit to enforce any payment;

•

reduce the percentages of registered holders whose consent is required for any supplemental indenture or waiver or reduce the requirements for quorum and voting under the indenture; or

•

modify certain of the provisions in the indenture relating to supplemental indentures and waivers of certain covenants and past defaults.

A supplemental indenture which changes or eliminates any provision of the indenture expressly included solely for the benefit of registered holders of debt securities of one or more particular series or tranches will be deemed not to affect the rights under the indenture of the registered holders of debt securities of any other series or tranche.

Miscellaneous

The indenture provides that some debt securities, including those for which payment or redemption money has been deposited or set aside in trust, will not be deemed to be “outstanding” in determining whether the

registered holders of the requisite principal amount of the outstanding debt securities have given or taken any demand, direction, consent or other action under the indenture as of any date, or are present at a meeting of registered holders for quorum purposes.

We will be entitled to set any day as a record date for the purpose of determining the registered holders of outstanding debt securities of any series entitled to give or take any demand, direction, consent or other action under the indenture, in the manner and subject to the limitations provided in the indenture. In some circumstances, the indenture trustee also will be entitled to set a record date for action by registered holders. If a record date is set for any action to be taken by registered holders of particular debt securities, the action may be taken only by persons who are registered holders of the respective debt securities on the record date.

Any money we provide to a paying agent for the payment of principal, premium or interest that remains unclaimed at the end of two years after the payment became due and payable will be repaid to us. Thereafter, the holder of debt securities entitled to such payment must look only to us for payment.

Defeasance and Covenant Defeasance

The indenture provides, unless the terms of the particular series of debt securities provide otherwise, that we may, upon satisfying several conditions, cause ourselves to be:

•

discharged from our obligations, with some exceptions, with respect to any series of debt securities, which we refer to as “defeasance;” and

•

released from our obligations under specified covenants with respect to any series of debt securities, which we refer to as “covenant defeasance.”

One condition we must satisfy is the irrevocable deposit with the indenture trustee, in trust, of money and/or government obligations which, through the scheduled payment of principal and interest on those obligations, would provide sufficient moneys to pay the principal of and any premium and interest on those debt securities on the maturity dates of the payments or upon redemption.

The indenture permits defeasance with respect to any series of debt securities even if a prior covenant defeasance has occurred with respect to the debt securities of that series. Following a defeasance, payment of the debt securities defeased may not be accelerated because of an event of default. Following a covenant defeasance, payment of the debt securities may not be accelerated by reference to the specified covenants affected by the covenant defeasance. However, if an acceleration were to occur, the realizable value at the acceleration date of the money and government obligations in the defeasance trust could be less than the principal and interest then due on the respective debt securities, since the required deposit in the defeasance trust would be based upon scheduled cash flows rather than market value, which would vary depending upon interest rates and other factors.

Under current United States federal income tax law, the defeasance contemplated in the preceding paragraphs would be treated as an exchange of the relevant debt securities in which holders of the debt securities might recognize gain or loss. In addition, the amount, timing and character of amounts that holders would be required after the defeasance to include in income might be different from that which would be includible in the absence of the defeasance. Prospective investors are urged to consult their own tax advisors as to the specific consequences of a defeasance, including the applicability and effect of tax laws other than United States federal income tax laws.

Under current United States federal income tax laws, unless accompanied by other changes in the terms of the debt securities, covenant defeasance generally should not be treated as a taxable exchange.

Resignation and Removal of the Indenture Trustee; Deemed Resignation

The indenture trustee may resign at any time by giving written notice to us.

The indenture trustee may also be removed with respect to any series of debt securities by act of the registered holders of a majority in principal amount of the then outstanding debt securities of any such series.

No resignation or removal of the indenture trustee and no appointment of a successor indenture trustee will become effective until the acceptance of appointment by a successor indenture trustee in accordance with the requirements of the indenture.

Under some circumstances, we may appoint a successor indenture trustee and, if the successor accepts, the indenture trustee will be deemed to have resigned.

Governing Law

The indenture and the related debt securities will be governed by and construed in accordance with the laws of the State of New York.

DESCRIPTION OF COMMON STOCK AND PREFERRED STOCK

The following is a summary of the material terms of our common stock and preferred stock, which is based upon, and is qualified in its entirety by reference to, applicable law, our Restated Articles of Incorporation, as amended (the “Articles of Incorporation”), and our Amended and Restated Bylaws (the “Bylaws”). This summary may not contain all the information that is important to you; you can obtain additional information regarding our Articles of Incorporation and Bylaws by referring to such documents, copies of which are included as exhibits to the registration statement of which this prospectus forms a part.

Under our Articles of Incorporation, we have authority to issue 800,000,000 shares of common stock, no par value, and 50,000,000 shares of preferred stock. No other classes of capital stock are authorized under our Articles of Incorporation. As of June 30, 2021, there were 379,695,134 shares of common stock and 1,250,000 shares of preferred stock issued and outstanding. All shares of common stock and preferred stock will, when issued pursuant to this prospectus, be duly authorized, fully paid and nonassessable. We may issue our common stock and preferred stock from time to time upon such terms and for such consideration as may be determined by our board of directors. Such further issuances, up to the aggregate amounts authorized by our Articles of Incorporation, will not require approval by our shareholders. We may also issue common stock from time to time under dividend reinvestment and employee benefit plans.

Common Stock

Dividend Rights

Holders of our common stock, subject to any prior rights or preferences of any of our preferred stock then outstanding, have equal rights to receive dividends if and when declared by our board of directors out of funds legally available therefor.

Rights Upon Liquidation

In the event we are liquidated, dissolved or our affairs are wound up, after we pay or make adequate provision for all of our known debts and liabilities, each holder of common stock will receive distributions pro rata out of assets that we can legally use to pay distributions, subject to the rights of the holders of any of our preferred stock then outstanding.

Voting Rights

Except as otherwise provided by law, holders of our common stock have voting rights on the basis of one vote per share on each matter submitted to a vote at a meeting of shareholders, subject to any class or series

voting rights of holders of our preferred stock then outstanding. Our shareholders may not cumulate votes in elections of directors. As a result, the holders of our common stock (and, if issued, any preferred stock with the right to vote in the election of directors) entitled to exercise more than 50% of the voting rights in an election of directors can elect all of the directors to be elected.

Other Rights

Holders of our common stock have no preemptive rights to subscribe for additional shares of common stock or any of our other securities, nor do holders of our common stock have any redemption or conversion rights.

Listing

Our common stock is listed on the New York Stock Exchange under the symbol “EIX.”

Transfer Agent and Registrar

As of the date of this prospectus, the transfer agent and registrar for our common stock is Equiniti Trust Company.

Preferred Stock

In the event that we issue any series of preferred stock pursuant to this prospectus, we will describe the terms of such series of preferred stock in an applicable prospectus supplement.

Our board of directors is authorized, without the need for a vote or other action of our shareholders, to cause the issuance of shares of our preferred stock from time to time in one or more series and to determine the number of shares and designation of the preferred stock of any series, to increase or decrease (but not below the number of shares of such series then outstanding) the number of shares of any such series subsequent to the issuance of shares of that series, and to determine or alter the rights, preferences, privileges and restrictions granted to or imposed upon such series, which may include, among other things, dividend and liquidation rights and preferences, rights to convert such shares into common stock, voting rights and other rights. Accordingly, our board of directors, without a vote or other action by our shareholders, could cause the issuance of preferred stock in one or more series and, with respect to each series, fix the number of shares constituting that series and establish the rights, preferences, privileges and restrictions of that series, which may include, among other things, dividend and liquidation rights and preferences, rights to convert such shares into common stock, voting rights and other rights which may dilute or otherwise adversely affect the voting or other rights and the economic interests of holders of our common stock or one or more other series of our preferred stock, if any, then outstanding.

If we issue preferred stock with voting rights, it could make it more difficult for a third party to acquire control of us and could adversely affect the rights of holders of our common stock. Under some circumstances, control of us could shift from the holders of common stock to the holders of preferred stock with voting rights. Certain fundamental matters requiring stockholder approval may also require approval by the separate vote of the holders of preferred stock in addition to any required vote of the common stock.

We may or may not seek to list any particular series of preferred stock on a national securities exchange or to provide for it to be quoted on an inter-dealer quotation system. We will determine the transfer agent and registrar for any particular series of preferred stock when and if issued.

Anti-Takeover Effects of our Articles of Incorporation and Bylaws

Certain provisions of our Articles of Incorporation and Bylaws could have the effect of delaying, deterring or preventing another party from acquiring or seeking to acquire control of us. These provisions are intended to discourage certain types of coercive takeover practices and inadequate takeover bids and to encourage anyone seeking to acquire control of us to negotiate first with our board of directors. However, these provisions could also delay, deter or prevent a change of control or other takeover of our company that our shareholders might consider to be in their best interests, including transactions that might result in a premium being paid over the market prices of our common stock and any outstanding preferred stock, and may also limit the price that investors are willing to pay in the future for our common stock and any outstanding preferred stock. These provisions may also have the effect of preventing changes in our management. Our Articles of Incorporation and Bylaws include anti-takeover provisions that:

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authorize our board of directors, without a vote or other action by our shareholders, to cause the issuance of preferred stock in one or more series, as noted above;

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establish advance notice requirements and procedures for shareholders to submit nominations of candidates for election to our board of directors and to propose other business to be brought before a shareholders meeting;

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provide that vacancies in our board of directors, except those existing as a result of the removal of a director, may be filled by a majority of the directors then in office or by the sole remaining director;

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provide that no shareholder may cumulate votes in the election of directors, which means that the holders of a majority of our outstanding shares of common stock can elect all directors standing for election by our common shareholders;

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require that any action to be taken by our shareholders must be taken either (1) at a duly called annual or special meeting of shareholders or (2) by not less than the minimum number of votes that would be necessary to authorize or take such action at a meeting at which all shares entitled to vote thereon were present and voted; and

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require action by shareholders holding not less than 1/10th of the voting power of our capital stock in order for our shareholders to call a special meeting of shareholders.

Limitation on Liability of Directors; Indemnification of Directors and Officers

Our Articles of Incorporation provide that the liability of our directors for monetary damages shall be eliminated to the fullest extent permissible under California law. Section 317 of the Corporations Code of the State of California permits a corporation to provide indemnification to its directors, officers and agents under certain circumstances. Our Bylaws provide for mandatory indemnification of our directors and officers, subject to the limitations set forth therein. In addition, our Articles of Incorporation provide us with the power, by bylaw, agreement or otherwise, to indemnify our directors, officers and other agents to the fullest extent permissible under California law and, subject to certain limitations, in excess of the indemnification otherwise expressly permitted by Section 317 of the Corporations Code. We believe that this limitation of liability and these indemnification provisions are useful to attract and retain qualified directors and officers.

PLAN OF DISTRIBUTION

We may sell the securities registered pursuant to this prospectus in one or more of the following ways from time to time:

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to or through underwriters, dealers or agents;

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directly to agents or other purchasers;

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in “at the market offerings,” within the meaning of Rule 415(a)(4) of the Securities Act, to or through a market maker or into an existing trading market, on an exchange or otherwise;

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in forward contracts or similar arrangements;

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through a combination of any of the foregoing methods; or

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through any other method described in the applicable prospectus supplement.

We, directly or through agents or dealers, may sell, and any underwriters may resell, our securities in one or more transactions:

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at a fixed price or prices, which may be changed;

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at market prices prevailing at the time of sale, including through transactions on the New York Stock Exchange or any other organized market where our securities may be sold; or

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in negotiated transactions.

We will name any underwriter, dealer or agent involved in the offer and sale of securities in the applicable prospectus supplement. In addition, we will describe in the applicable prospectus supplement the public offering or purchase price and the proceeds we will receive from the sale of our securities, any compensation we will pay to underwriters, dealers or agents in connection with such offering of our securities, any discounts, concessions or commissions allowed or re-allowed by underwriters to participating dealers, and any exchanges on which our securities will be listed.

Dealers and agents participating in the distribution of our securities may be deemed to be underwriters, and any discounts and commissions received by them and any profit realized by them on resale of the securities may be deemed to be underwriting discounts and commissions. We may enter into agreements to indemnify underwriters, dealers and agents against certain civil liabilities, including liabilities under the Securities Act, and to reimburse these persons for certain expenses. We may also agree to contribute to payments that the underwriters, dealers or agents or any of their controlling persons may be required to make in respect of such liabilities. We may grant underwriters who participate in the distribution of the securities we are registering pursuant to this prospectus an option to purchase additional securities in connection with a subsequent distribution. Certain underwriters, dealers or agents and their associates may engage in transactions with and perform services for us in the ordinary course of our business.

To facilitate a securities offering, certain persons participating in the offering may engage in sales in excess of the offering size, short covering transactions and penalty bids or stabilizing transactions in accordance with Regulation M under the Exchange Act. These activities, which may raise or maintain the market price of the common stock or preferred stock above independent market levels or prevent or retard a decline in the market price of the common stock or preferred stock include:

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sales in excess of the offering size that create a short position, which the persons participating in the offering may close out by exercising any option they receive to purchase additional shares of our common stock or preferred stock or by purchasing shares in the open market;

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stabilizing transactions that permit bids to purchase the underlying securities so long as the stabilizing bids do not exceed a specified maximum;

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short covering positions involving purchases of securities in the open market after the distribution is completed to cover short positions; and

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penalty bids permitting the underwriters to reclaim a selling concession from a dealer when the securities originally sold by the dealer are purchased in a covering transaction to cover short positions.

The applicable prospectus supplement will describe any such activities. Should any of these activities be undertaken, they may be discontinued at any time.

EXPERTS

The financial statements and management’s assessment of the effectiveness of internal control over financial reporting (which is included in Management’s Report on Internal Control over Financial Reporting) incorporated in this prospectus by reference to the Annual Report on Form 10-K for the year ended December 31, 2020 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

VALIDITY OF THE SECURITIES

The validity of the securities offered by this prospectus will be passed upon for Edison International by Michael A. Henry, its Assistant General Counsel, and for any underwriters by Cleary Gottlieb Steen & Hamilton LLP, New York, New York.

Cleary Gottlieb Steen & Hamilton LLP, New York, New York has from time to time provided, and may provide in the future, legal services to Edison International and its affiliates.

WHERE YOU CAN FIND MORE INFORMATION

Available Information

We file annual, quarterly and current reports, proxy statements and other information with the Securities and Exchange Commission. You can access the documents we file electronically with the Securities and Exchange Commission from the website http://www.sec.gov.

You may also review reports, proxy statements and other information about Edison International at our offices at 2244 Walnut Grove Avenue, Rosemead, California 91770. You may view and obtain copies of some of those reports and other information on our web site at http://www.edison.com. Except for the documents specifically incorporated by reference into this prospectus, information contained on Edison International’s web site or that can be accessed through its web site does not constitute part of this prospectus.

This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission. You may obtain the full registration statement from the Securities and Exchange Commission or us, as indicated below. We filed the indenture and other documents establishing the terms of the offered securities as exhibits to the registration statement. Statements in this prospectus or any supplement about these documents are summaries. You should refer to the actual documents for a more complete description of the relevant matters.

Incorporation by Reference

The rules of the Securities and Exchange Commission allow us to “incorporate by reference” into this prospectus, which means that we can disclose important information to you by referring you to another document filed separately with the Securities and Exchange Commission. The information incorporated by reference is considered to be part of this prospectus, and later information that we file with the Securities and Exchange Commission will automatically update and supersede the earlier information. This prospectus incorporates by reference the documents listed below that we have previously filed or may file in the future with the Securities and Exchange Commission. These documents contain important information about Edison International.

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Our Annual Report on Form 10-K for the year ended December 31, 2020.

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Our Quarterly Reports on Form 10-Q for the quarters ended March 31 , and June 30, 2021.

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Our Current Reports on Form 8-K filed January 25 (Item 8.01 only), March 2, March 9, April 23, and May 6, 2021.

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The description of our common stock included as Exhibit 4.1 of our Annual Report on Form 10-K for the year ended December 31, 2019 filed with the Securities and Exchange Commission on February 27, 2020, including any amendment or report filed for the purpose of updating this description.

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All additional documents that we file with the Securities and Exchange Commission under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act between the date of this prospectus and the end of the offering of the securities described in this prospectus. Those documents include Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and proxy statements mailed to our shareholders.

Upon request, we will provide a copy of any of these filings without charge to each person to whom a copy of this prospectus has been delivered. You may request a copy of these filings by writing or calling us at:

Edison International

2244 Walnut Grove Avenue

P.O. Box 976

Rosemead, California 91770

Attention: Corporate Governance

Telephone (626) 302-4008

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Edison International

$ % Senior Notes Due 2028

PROSPECTUS SUPPLEMENT

Joint Book-Running Managers


Mizuho		MUFG		PNC Capital Markets LLC

May , 2023

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