Company: HBAN
Filing Date: 2025-02-28
Form Type: S-3ASR
Source: 0001193125-25-042581
Chunk: 1

Company: HUNTINGTON BANCSHARES INC /MD/
Filing Date: 2025-02-28
Form: S-3ASR
Chunk 1
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 this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☒ If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐ Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-acceleratedfiler, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2of the Securities Exchange Act of 1934. (Check one):

| Large accelerated filer |     | ☒ |     | Accelerated filer         |     | ☐ |
| Non-accelerated filer   |     | ☐ |     | Smaller reporting company |     | ☐ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of Securities Act. ☐

PROSPECTUS

Huntington Bancshares Incorporated

Common Stock

Preferred Stock

Depositary Shares

Senior Debt Securities

Subordinated Debt Securities

Junior Subordinated Debt Securities

Warrants

Purchase Contracts for Securities

Guarantees

Units

Huntington Center

41 South High Street

Columbus, Ohio 43287

(614) 480-2265

The securities
listed above may be offered and sold, from time to time, by Huntington Bancshares Incorporated, a Maryland corporation (which may be referred to as “we” or “us” or “our” or the “Issuer” or
“Huntington”), and/or one or more selling security holders to be identified in the future in amounts, at prices, and on other terms to be determined at the time of the offering, including on a delayed or continuous basis. The Issuer will
describe the specific terms and manner of offering of these securities in a supplement to this prospectus. The prospectus supplement may also add, update, or change information contained in this prospectus. You should read this prospectus and the
related prospectus