Company: MFAN
Filing Date: 2025-08-15
Form Type: 424B5
Source: 0001104659-25-079260
Chunk: 83

Company: MFA FINANCIAL, INC.
Filing Date: 2025-08-15
Form: 424B5
Chunk 83
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 any, of those underwriters or agents;

•

the public offering price of the securities;

•

information about securities exchanges, electronic communications networks or automated quotation systems on which the securities will be listed or traded; and

•

any other material information about the offering and sale of the securities.

**The New York Stock Exchange (or NYSE) lists our common stock under the symbol “MFA,” our 7.50% Series B Cumulative Redeemable Preferred Stock under the symbol “MFA/PB,” our 6.50% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock under the symbol “MFA/PC,” our 8.875% Senior Notes due 2029 under the symbol “MFAN” and our 9.00% Senior Notes due 2029 under the symbol “MFAO.”

Investing in our securities involves certain risks. Before buying any of our securities, you should read the risks referenced under the caption “Risk Factors” on page 6of this prospectus

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED THAT THIS PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.**

<div align='center'>August 14, 2025</div>

TABLE OF CONTENTS

TABLE OF CONTENTS

| ​                                                                | ​ | ​ | Page |   |    |   | ​ |
| ABOUT THIS PROSPECTUS                                            | ​ | ​ | ​    | ​ |  1 | ​ | ​ |
| FORWARD-LOOKING STATEMENTS                                       | ​ | ​ | ​    | ​ |  2 | ​ | ​ |
| MFA FINANCIAL, INC.                                              | ​ | ​ | ​    | ​ |  4 | ​ | ​ |
| RISK FACTORS                                                     | ​ | ​ | ​    | ​ |  6 | ​ | ​ |
| USE OF PROCEEDS                                                  | ​ | ​ | ​    | ​ |  7 | ​ | ​ |
| DESCRIPTION OF COMMON STOCK AND PREFERRED STOCK                  | ​ | ​ | ​    | ​ |  8 | ​ | ​ |
| DESCRIPTION OF DEPOSITARY SHARES                                 | ​ | ​ | ​    | ​ | 12 | ​ | ​ |
| DESCRIPTION OF WARRANTS                                          | ​ | ​ |