Company: POR
Filing Date: 2025-07-25
Form Type: 424B5
Source: 0001140361-25-027364
Chunk: 29

Company: PORTLAND GENERAL ELECTRIC CO /OR/
Filing Date: 2025-07-25
Form: 424B5
Chunk 29
---
 Persons who acquire shares of our common stock through the Plan and resell them shortly after acquiring them, including coverage of short positions, under certain circumstances, may be participating in a distribution of securities that would require compliance with Regulation M under the Securities Exchange Act of 1934, as amended, and may be considered to be underwriters within the meaning of the Securities Act of 1933, as amended. We will not extend to any such person any rights or privileges other than those to which they would be entitled as a participant, nor will we enter into any agreement with any such person regarding the resale or distribution by any such person of the shares of our common stock so purchased.

Our common stock may not be available under the Plan in all states or jurisdictions. We are not making an offer to sell our common stock in any jurisdiction where the offer or sale is not permitted.

<div align='center'>S-22</div>

#### TABLE OF CONTENTS

### USE OF PROCEEDS
The Company has no basis for estimating either the number of shares of common stock that ultimately will be sold pursuant to the Plan or the prices at which such shares will be sold. Except to the extent shares of common stock are purchased directly from the Company, the Company will receive no proceeds from the offering of common stock through the Plan. To the extent shares are purchased from the Company, the net proceeds from the sale of such shares will be added to the general funds of the Company and used for its general corporate purposes.

<div align='center'>S-23</div>

#### TABLE OF CONTENTS

### LEGAL MATTERS
Angelica Espinosa, our Senior Vice President and Chief Legal and Compliance Officer, will pass upon certain legal matters for us in connection with the securities offered by this prospectus supplement. As of July 24, 2025, Ms. Espinosa owned 20,134 shares of our common stock. Pursuant to various stock and employee benefit plans, Ms. Espinosa is eligible to purchase and receive shares of our common stock and to receive options to purchase shares of common stock.

### EXPERTS
The financial statements of the Company incorporated by reference in this Prospectus, and the effectiveness of the Company’s internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports. Such financial statements are incorporated by reference in reliance upon the reports of such firm, given their authority as experts in accounting and auditing.

<div align='center