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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): August 22, 2025
FLAGSTAR FINANCIAL, INC.
(Exact Name of Registrant as Specified in Charter)

Delaware |  | 1-31565 |  | 06-1377322
(State or Other Jurisdiction of Incorporation) |  | Commission File Number |  | (IRS Employer Identification No.)

102 Duffy Avenue, | Hicksville, | New York | 11801
(Address of principal executive offices)

(516) 683-4100
(Registrant's telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Exchange Act:

Title of each class |  | Trading symbol(s) |  | Name of each exchange on which registered
Common stock, $0.01 par value per share |  | FLG |  | New York Stock Exchange
Bifurcated Option Note Unit Securities SM |  | FLG PRU |  | New York Stock Exchange
Depositary Shares each representing a 1/40th interest in a share of Fixed-to-Floating Rate Series A Noncumulative Perpetual Preferred Stock |  | FLG PRA |  | New York Stock Exchange

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:

☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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 August 22, 2025, Flagstar Financial, Inc. (the “Company”), in connection with its previously announced internal reorganization to streamline its corporate structure by merging the Company with and into its wholly-owned bank subsidiary, Flagstar Bank, N.A., a nationally chartered banking association (the “Bank”), with the Bank as the resulting entity, entered into separate voting agreements with affiliates of funds managed by Liberty 77 Capital L.P. (“Liberty”), affiliates of funds managed by Hudson Bay Capital Management, LP (“Hudson Bay”) and affiliates of funds managed by Reverence Capital Partners, L.P. (“Reverence” and, together with Liberty and Hudson Bay, the “Investors”). As of August 18, 2025, the Investors collectively held 145,670,546 shares of the Company’s common stock, which constitutes approximately 35.05% of the Company’s outstanding common stock. Pursuant to the voting agreement between the Company and each Investor, each Investor has agreed to vote in favor of the merger proposal, the conversion proposal, and the adjournment proposal, as described in the Company’s Definitive Proxy Statement on Schedule 14A filed on August 22, 2025, at the special meeting of the Company’s shareholders to be held on October 15, 2025, subject to the limitations set forth in the voting agreements. The form of voting agreement between the Company and each Investor is attached here to as Exhibit 10.1.
In addition, on August 22, 2025, the Company and the Bank entered into an Amended and Restated Agreement and Plan of Merger solely to provide additional clarifications on the treatment of the Company’s outstanding warrants for the Company’s Series D Non-Voting Common Equivalent Preferred Stock in the merger. The Amended and Restated Agreement and Plan of Merger is attached hereto as Exhibit 2.1.

Item 9.01 |  | Financial Statements and Exhibits
(d) |  | Attached as Exhibit 2.1 is the Amended and Restated Agreement and Plan of Merger between the Company and the Bank, dated as of August 22, 2025. Attached as Exhibit 10.1 is the form of voting agreement between the Company and each Investor, dated as of August 22, 2025.

Exhibit No. |  | Description of Exhibit
2.1 |  | Amended and Restated Agreement and Plan of Merger between Flagstar Financial, Inc. and Flagstar Bank, N.A., dated as of August 22, 2025
10.1 |  | Form of Voting Agreement between the Company and each Investor, dated as of August 22, 2025
104 |  | Cover Page Interactive Data File (embedded within the Inline XBRL document)

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

Date: | August 22, 2025 |  | FLAGSTAR FINANCIAL, INC.
|  |  | /s/ Bao Nguyen
|  |  | Bao Nguyen
|  |  | Senior Executive Vice President, General Counsel and Chief of Staff