Company: SREA
Filing Date: 2025-08-27
Form Type: 424B2
Source: 0001193125-25-189685
Chunk: 1

Company: SEMPRA
Filing Date: 2025-08-27
Form: 424B2
Chunk 1
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 with the terms of the notes), compounded semi-annually, to the extent permitted by applicable law. See “Description of the Notes—Option to Defer Interest Payments.” The notes will be issued in denominations of $2,000 and integral multiples of $1,000 in excess thereof. At our option, we may redeem notes at the times and at the applicable redemption price described in this prospectus supplement. The notes will be our unsecured obligations and will rank junior and subordinate in right of payment to the prior payment in full of our existing and future Senior Indebtedness (as defined herein). The notes will rank equally in right of payment with our existing $1.0 billion aggregate principal amount of 4.125% Fixed-to-FixedReset Rate Junior Subordinated Notes due 2052, $1.25 billion aggregate principal amount of 6.400% Fixed-to-FixedReset Rate Junior Subordinated Notes due 2054, $1.1 billion aggregate principal amount of 6.875% Fixed-to-FixedReset Rate Junior Subordinated Notes due 2054, $400 million aggregate principal amount of 6.625% Fixed-to-FixedReset Rate Junior Subordinated Notes due 2055, $600 million aggregate principal amount of 6.550% Fixed-to-FixedReset Rate Junior Subordinated Notes due 2055, and $758 million aggregate principal amount of 5.750% Junior Subordinated Notes due 2079 and with any future unsecured indebtedness that we may incur from time to time if the terms of such indebtedness provide that it ranks equally with the notes in right of payment. The notes are a new issue of securities with no established trading market. We do not intend to apply for the listing or trading of the notes on any securities exchange or trading facility or for inclusion of the notes in any automated quotation system. Investing in the notes involves risks. See the “ Risk Factors” beginning on page S-12of this prospectus supplement.

|                                         |     | Per  
 Note |         |   |     | Total |             |
|:----------------------------------------|:----|:-----|--------:|:--|:----|:------|------------:|
| Public Offering Price(1)                |     |      | 100.000 | % |     | $     | 800,000,000 |
| Underwriting Discount                   |     |      |   1.000 | % |     | $     |   8,000,000