Regulation FD Disclosure. On August 26, 2026, the Board of Directors of StoneX Group Inc. (the "Company") authorized for fiscal year 2027 the repurchase of up to 5.0 million shares of its outstanding common stock from time to time in open market purchases and private transactions, commencing on October 1, 2026 and ending on September 30, 2027, subject to the discretion of the senior management team to implement the Company's stock repurchase plan, and subject to market conditions and as permi…

Results of Operations and Financial Condition On August 5, 2026, the StoneX Group Inc. (the “Company”) issued a press release on the subject of the Company's results of operations and financial condition for the fiscal quarter ended June 30, 2026. The press release is attached hereto as Exhibit 99.1 and incorporated by reference herein. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act…

Results of Operations and Financial Condition On May 6, 2026, the StoneX Group Inc. (the “Company”) issued a press release on the subject of the Company's results of operations and financial condition for the fiscal quarter ended March 31, 2026. The press release is attached hereto as Exhibit 99.1 and incorporated by reference herein. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of…

Other Events On February 3, 2026, the Company’s Board of Directors approved a three-for-two split of its common stock. The stock split will be effected as a stock dividend entitling each stockholder of record to receive one additional share of common stock for every two shares owned. Additional shares issued as a result of the stock dividend will be distributed after close of trading on March 20, 2026, to stockholders of record at the close of business on March 10, 2026. Cash will be distribu…

Results of Operations and Financial Condition On February 4, 2026, the StoneX Group Inc. (the “Company”) issued a press release on the subject of the Company's results of operations and financial condition for the fiscal quarter ended December 31, 2025. The press release is attached hereto as Exhibit 99.1 and incorporated by reference herein. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchang…

Results of Operations and Financial Condition On November 24, 2025, the StoneX Group Inc. (the “Company”) issued a press release on the subject of the Company's results of operations and financial condition for the fiscal quarter ended September 30, 2025. The press release is attached hereto as Exhibit 99.1 and incorporated by reference herein. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Excha…

Other Events. On August 29, 2025, StoneX Group Inc. (the “Company”) filed a prospectus supplement to the Company’s existing effective shelf registration statement on Form S-3 (File No. 333-285071) registering the resale by the selling stockholders named therein of up to 3,085,554 shares of the Company’s common stock, par value $0.01 per share (the “Shares”), under the Securities Act of 1933, as amended. The Company will not receive any proceeds from the sale of the Shares by the selling stock…

Regulation FD Disclosure. On August 13, 2025, the Board of Directors of StoneX Group Inc. (the "Company") authorized for fiscal year 2026 the repurchase of up to 2.25 million shares of its outstanding common stock from time to time in open market purchases and private transactions, commencing on October 1, 2025 and ending on September 30, 2026, subject to the discretion of the senior management team to implement the Company's stock repurchase plan, and subject to market conditions and as perm…

Results of Operations and Financial Condition On August 5, 2025, the StoneX Group Inc. (the “Company”) issued a press release on the subject of the Company's results of operations and financial condition for the fiscal quarter ended June 30, 2025. The press release is attached hereto as Exhibit 99.1 and incorporated by reference herein. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act…

Completion of Acquisition or Disposition of Assets. The information set forth in the Introduction is incorporated herein by reference to this Current Report on Form 8-K. Pursuant to the terms of the Merger Agreement, in connection with the Merger, StoneX paid the equityholders, option holders and holders of stock appreciation rights of RTS aggregate consideration of (i) $610,566,926 in cash, subject to post-closing adjustment as provided in the Merger Agreement and (ii) 3,085,554 shares (the…

As previously announced, on July 8, 2025, StoneX Escrow Issuer LLC, a Delaware limited liability company (the “Escrow Issuer”) and wholly-owned subsidiary of the Company, and The Bank of New York Mellon, as trustee (in such capacity, the “Trustee”) and collateral agent (in such capacity, the “Collateral Agent”), entered into an Indenture, dated as of July 8, 2025 (the “Indenture”), in connection with the issuance and sale of $625,000,000 in aggregate principal amount of 6.875% Senior Secured…

On the Closing Date, StoneX completed the issuance of the shares of Parent Common Stock as consideration for the Merger in reliance on the exemption from registration requirements of the Securities Act, provided by Section 4(a)(2) thereof.

Entry into a Material Definitive Agreement. On July 8, 2025, StoneX Escrow Issuer LLC (the “Escrow Issuer”), a wholly-owned subsidiary of StoneX Group Inc. (the “Company”), and The Bank of New York Mellon, as trustee (in such capacity, the “Trustee”) and collateral agent (in such capacity, the “Collateral Agent”), entered into an Indenture, dated July 8, 2025 (the “Indenture”), in connection with the issuance and sale of $625 million in aggregate principal amount of 6.875% Senior Secured Note…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information included in

Other Events On June 23, 2025, StoneX Group Inc. (the “Company”) issued a press release pursuant to Rule 135c under the Securities Act of 1933, as amended (the “Securities Act”), announcing the pricing of a previously-announced offering by its wholly-owned subsidiary, StoneX Escrow Issuer LLC, of $625 million in aggregate principal amount of senior secured notes due 2032. StoneX Escrow Issuer LLC was created solely to issue the Notes in connection with the Company's proposed acquisition of R.…

Regulation FD Disclosure On June 23, 2025, StoneX Group Inc. (the “Company”) announced the commencement of an offering by its wholly-owned subsidiary, StoneX Escrow Issuer LLC (the “Offering”) pursuant to exemptions from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), for the issuance of $625 million in aggregate principal amount of senior secured notes due 2032 (the “Notes”). StoneX Escrow Issuer LLC was created solely to issue the Notes in con…

Other Events On June 23, 2025, the Company issued a press release pursuant to Rule 135c under the Securities Act regarding commencement of the Offering. A copy of the press release is attached hereto as Exhibit 99.2. The offer and sale of the Notes and related guarantees have not been, and will not be, registered under the Securities Act, or the securities laws of any other jurisdiction, and the Notes and related guarantees may not be offered or sold in the United States absent registration o…

Entry into a Material Definitive Agreement On June 3, 2025 StoneX Group Inc. (the “Company”) entered into a Restatement Agreement to its Amended and Restated Credit Agreement, made as of February 22, 2019, with Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, BofA Securities, Inc., BMO Capital Markets Corp., Capital One, National Association, Canadian Imperial Bank of Commerce, New York Branch, CIBC World Markets Corp., Barclays Bank PLC, Citizens Bank, N.A.,…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant The information contained within

Results of Operations and Financial Condition On May 7, 2025, the StoneX Group Inc. (the “Company”) issued a press release on the subject of the Company's results of operations and financial condition for the fiscal quarter ended March 31, 2025. The press release is attached hereto as Exhibit 99.1 and incorporated by reference herein. The information furnished under this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of…

Entry into a Material Definitive Agreement. Merger Agreement On April 13, 2025, StoneX Group, Inc. a Delaware corporation (the “Company”), entered into an Agreement and Plan of Merger Agreement (the “Merger Agreement”) by and among the Company, RTS Merger Sub Inc., a Delaware corporation and wholly owned subsidiary of the Company (“Merger Sub”), RTS Investor Corp., a Delaware corporation (“RTS”), and Westmoor Trail Partners LLC, a Delaware limited liability Company (the “Equityholders’ Repres…

The shares of Parent Common Stock to be issued as consideration for the Merger will be issued in reliance on the exemption from registration requirements of the Securities Act of 1933, as amended, provided by Section 4(a)(2) thereof and Rule 506 of Regulation D promulgated thereunder.

Sean M. O’Connor: The filing discloses a compensatory equity grant agreement rather than a change in officer or director status.

Group President — Charles Lyon: The filing discloses the terms of a new employment agreement and compensation structure for a Group President, which is a routine administrative disclosure rather than a change in management status or departure.

Other Events Also on February 5, 2025, the Company’s Board of Directors approved a three-for-two split of its common stock. The stock split will be effected as a stock dividend entitling each stockholder of record to receive one additional share of common stock for every two shares owned. Additional shares issued as a result of the stock dividend will be distributed after close of trading on March 21, 2025, to stockholders of record at the close of business on March 11, 2025. Cash will be dis…