Company Update

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): January 13, 2026   Jefferies Financial Group Inc. (Exact name of registrant as specified in its charter)                 New York (State or other jurisdiction of incorporation)     001-05721 (Commission File Number)     13-2615557 (IRS Employer Identification No.)               520 Madison Ave. , New York , New York (Address of principal executive offices)     10022 (Zip Code)         Registrant’s telephone number, including area code: 212 - 284-2300   (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: ☐ 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)) Securities registered pursuant to Section 12(b) of the Act:               Title of each class     Trading Symbol(s)     Name of each exchange on which registered Common Shares, par value $1 per share     JEF     New York Stock Exchange 4.850% Senior Notes Due 2027     JEF 27A     New York Stock Exchange 5.875% Senior Notes Due 2028     JEF 28     New York Stock Exchange 2.750% Senior Notes Due 2032     JEF 32A     New York Stock Exchange 6.200% Senior Notes Due 2034     JEF 34     New York Stock Exchange               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 8.01. Other Events. On January 13, 2026, Jefferies Financial Group Inc. issued a press release (the “Pricing Press Release”) announcing the pricing of its public offering of $1,500,000,000 aggregate principal amount of 5.500% Senior Notes due 2036. A copy of the Pricing Press Release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Item 9.01. Financial Statements and Exhibits (d) Exhibits.         Number     Exhibit 99.1     Pricing Press Release, dated January 13, 2026 104     Cover Page Interactive Data File (embedded within the Inline XBRL document)         SIGNATURES 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: January 13, 2026                     JEFFERIES FINANCIAL GROUP INC.               /s/ Michael J. Sharp       Michael J. Sharp       Executive Vice President and General Counsel