Comerica ends shelf after merger with Fifth Third

Comerica Incorporated files a post-effective amendment to its automatic shelf registration statement on Form S-3 to deregister all securities that were registered but remained unsold or unissued.

Rhea-AI Filing Summary

Comerica Incorporated files a post-effective amendment to its automatic shelf registration statement on Form S-3 to deregister all securities that were registered but remained unsold or unissued. This action follows the completion of its merger into Fifth Third Financial Corporation, a wholly owned subsidiary of Fifth Third Bancorp.

After the mergers, Fifth Third Financial Corporation survived as the continuing corporation, and the prior shelf offerings under Comerica’s registration statement were terminated. The amendment formally removes any remaining Comerica common stock and other previously registered securities and terminates the effectiveness of the shelf registration.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does Comerica (CMA) do in this post-effective amendment?

Comerica files a post-effective amendment to its Form S-3 automatic shelf registration. The company formally deregisters all securities that were previously registered but remained unsold or unissued and terminates the effectiveness of that registration statement after its merger into Fifth Third Financial Corporation.

Why is Comerica (CMA) deregistering unsold securities now?

Comerica is deregistering unsold securities because its merger into Fifth Third Financial Corporation has been completed. With the offerings under the prior shelf registration terminated, the company is fulfilling its undertaking to remove any securities that were registered for issuance but remain unsold.

How is the Comerica (CMA) and Fifth Third merger described here?

The document explains that Comerica merged with Fifth Third Financial Corporation, an Ohio corporation and subsidiary of Fifth Third Bancorp. Immediately afterward, Comerica Holdings Incorporated also merged into that entity, leaving Fifth Third Financial Corporation as the surviving corporation under the agreed merger structure.

Which types of securities were covered by Comerica’s S-3 shelf?

Comerica’s automatic shelf registration had covered an indeterminate amount of common stock, preferred stock, depositary shares, debt securities, warrants, stock purchase contracts, and stock purchase units. The amendment removes from registration any of these Comerica securities that remained unsold or unissued at the termination of the offerings.

Who signs this Comerica (CMA) post-effective amendment?

The amendment is signed on behalf of the successor by merger to Comerica by Fifth Third Bancorp. Christian Gonzalez, serving as Executive Vice President and Chief Legal Officer, signs as the authorized officer, relying on Rule 478 so that no additional signatures are required.

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Accepted by SEC EDGAR 02/02/2026 - 07:00 AM Learn about SEC filing dates

As filed with the Securities and Exchange Commission on February 2, 2026

Registration No. 333-277000

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

POST-EFFECTIVE AMENDMENT NO. 1 (No. 333-277000)

TO

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

COMERICA INCORPORATED

(Exact Name of Registrant as Specified in Its Charter)

Delaware		38-1998421
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

38 Fountain Square Plaza

Cincinnati, Ohio 45263

(800) 972-3030

(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant’s Principal Executive Offices)

Christian Gonzalez

Executive Vice President and Chief Legal Officer

Fifth Third Bancorp

38 Fountain Square Plaza

MD 10907F

Cincinnati, Ohio 45263

(513) 534-4300

(Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent for Service)

Copies To:

H. Rodgin Cohen

Mitchell S. Eitel

Patrick D. Lynch

Sullivan & Cromwell LLP

125 Broad Street

New York, New York 10004

(212) 558-4000

Approximate date of commencement of proposed sale to the public: Not applicable.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If 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-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer		☒		Accelerated filer		☐
Non-accelerated filer		☐		Smaller reporting company		☐
				Emerging growth 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 the Securities Act. ☐

DEREGISTRATION OF UNSOLD SECURITIES

Comerica Incorporated, a Delaware corporation (the “Registrant”), is filing this Post-Effective Amendment to Registration Statement No. 333-277000 on Form S-3ASR (the “Registration Statement”), which was previously filed by the Registrant with the Securities and Exchange Commission (the “Commission”) on February 12, 2024, pertaining to the registration of an indeterminate number of (i) shares of common stock, par value $5.00 per share (“Common Stock”) of the Registrant, (ii) shares of preferred stock (“Preferred Stock”) of the Registrant, (iii) depositary shares representing shares of Preferred Stock of a specified series of the Registrant, (iv) debt securities of the Registrant, (v) warrants to purchase shares of Common Stock, Preferred Stock or debt securities of the Registrant, (vi) stock purchase contracts and (vii) stock purchase units to deregister any and all securities registered but unsold or otherwise unissued as of the date hereof under the Registration Statement.

On February 1, 2026, pursuant to the Agreement and Plan of Merger, dated as of October 5, 2025 (the “Merger Agreement”), by and among the Registrant, Comerica Holdings Incorporated, a Delaware corporation and wholly owned subsidiary of the Registrant (“Comerica Holdings”), Fifth Third Bancorp, an Ohio corporation (“Fifth Third”), and Fifth Third Financial Corporation, an Ohio corporation and a wholly owned subsidiary of Fifth Third (“Fifth Third Intermediary”), (i) the Registrant merged with and into Fifth Third Intermediary, with Fifth Third Intermediary surviving the merger as the surviving corporation and (ii) immediately thereafter, Comerica Holdings merged with and into Fifth Third Intermediary, with Fifth Third Intermediary surviving the merger as the surviving corporation (the “Mergers”).

The foregoing description of the Mergers, the Merger Agreement and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety, by the Merger Agreement, which is attached as Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed with the Commission on October 9, 2025.

In connection with the completion of the Mergers, the offerings pursuant to the Registration Statement have been terminated. In accordance with the undertakings made by the Registrant in Part II of the Registration Statement to remove from registration, by means of a post-effective amendment, any securities that had been registered for issuance but remain unsold at the termination of the offerings, the Registrant hereby removes from registration any and all Common Stock and any other securities of the Registrant registered but unsold under the Registration Statement as of the date hereof. The Registration Statement is hereby amended, as appropriate, to reflect the deregistration of such securities, and the Registrant hereby terminates the effectiveness of the Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused the Post-Effective Amendment to the above-referenced Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Cincinnati, State of Ohio, on this 2nd day of February, 2026.

FIFTH THIRD BANCORP
(as sole shareholder of Fifth Third Financial Corporation, successor by merger to Comerica Incorporated)
By:		/s/ Christian Gonzalez
Name:		Christian Gonzalez
Title:		Executive Vice President and Chief Legal Officer

Note: No other person is required to sign this Post-Effective Amendment to the above-referenced Registration Statement in reliance on Rule 478 under the Securities Act of 1933, as amended.