Supplemental Prospectus (Form 424B3)

Filed Pursuant to Rule 424(b)(3)

Registration No. 333-279958

PROSPECTUS SUPPLEMENT NO. 29

(to Prospectus dated October 4, 2024)

MSP RECOVERY, INC.

56,896 Shares of Class A Common Stock

This prospectus supplement no. 29 amends and supplements the prospectus dated October 4, 2024 (as supplemented or amended from time to time, the "Prospectus"), which forms a part of our Registration Statement on Form S-1 (No. 333-279958). This prospectus supplement is being filed to update and supplement the information in the Prospectus with the information contained in our Current Report on Form 8-K filed with the Securities and Exchange Commission (the "SEC") on September 15, 2025 (the "Current Report"). Accordingly, we have attached the Current Report to this prospectus supplement.

This prospectus relates to the offer and sale from time to time by the selling securityholders named in this prospectus (the "Selling Securityholders"), or their permitted transferees, of up to 56,896 shares of our Class A Common Stock, par value $0.0001 per share, including: (i) up to 28,572 shares of our Class A Common Stock issuable upon exercise of warrants (the "VRM Warrants") issued to Virage Recovery Master, LP ("VRM") pursuant to the MTA Amendment No. 2 and Amendment to the Amended and Restated Security Agreement (the "Second Virage MTA Amendment") dated November 13, 2023; (ii) 2,858 shares of our Class A Common Stock issued to Virage Recovery Participation LP ("VRP") and up to 14,286 shares of our Class A Common Stock issuable upon exercise of a warrant issued to VRP (the "VRP Warrant"), in partial satisfaction of amounts owed by the Company pursuant to that certain Services Agreement dated May 20, 2022 between Virage Capital Management LP ("Virage") and the Company; and (iii) 11,180 shares of our Class A Common Stock issued to Palantir Technologies, Inc. ("Palantir") as consideration for certain products and services rendered by Palantir. As the exercise price of the VRM Warrants and the VRP Warrant is only $0.0175 per share, should the VRM Warrants or the VRP Warrant be exercised, we would only receive nominal proceeds therefrom.

Our Common Stock, Public Warrants and New Warrants are listed on Nasdaq under the symbols "MSPR," "MSPRZ," and "MSPRW." On September 12, 2025, the closing price of Common Stock was $1.73 per share, the closing price of our Public Warrants was $0.019 per warrant and the closing price of our New Warrants was $0.0019 per warrant.

Effective at 11:59 PM EDT on September 1, 2025, the Company amended its Second Amended and Restated Certificate of Incorporation filed with the Secretary of State of the State of Delaware to effect a 1-for-7 reverse stock split of the Company's common stock (the "Reverse Split"). Unless otherwise noted, the share and per share information in this Prospectus Supplement No. 29 have been adjusted to give effect to the Reverse Split.

Investing in our securities involves risks. Before you invest in our securities, please carefully read the information provided in the "Risk Factors" section beginning on page 9 of the Prospectus and any in any applicable prospectus supplement, and Item IA of our Annual Report on Form 10-K for the fiscal year ending December 31, 2024, filed with the SEC on April 16, 2025.

Neither the SEC nor any state securities commission has approved or disapproved of the securities to be issued under the Prospectus or determined if the Prospectus or this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus supplement is September 15, 2025.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): September 15, 2025

MSP Recovery, Inc.

(Exact name of registrant as specified in its charter)

(305) 614-2222

(Registrant's telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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 13(a) of the Exchange Act. ☐

Item 1.01 Entry into a Material Definitive Agreement.

On September 15, 2025, the Company and Yorkville reached an agreement to reduce the Floor Price under the Yorkville SEPA from $2.00 to $1.60.

Capitalized but undefined terms have the same meaning as set forth in the Yorkville SEPA and the Notes.

Item 9.01. Financial Statements and Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.