FORM 10-K_________________________ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from ___________ to ___________Commission file number 001-42813_________________________ MOUNT LOGAN CAPITAL INC. (Exact name of registrant as specified in its charter)_________________________ 33-2698952 (I.R.S. Employer Identification No.) 650 Madison Ave, 3rd FloorNew York, New York (Address of Principal Executive Offices)(Zip Code) (212) 891-2880Registrant’s telephone number, including area code Securities registered pursuant to Section 12(b) of the Act: Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes☐No☒ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act. Yes☐No☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Actof 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has beensubject to such filing requirements for the past 90 days. Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required tosubmit such files). Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reportingcompany, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,”and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filerNon-accelerated filerEmerging growth company ☐☐☒ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complyingwith any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of itsinternal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered publicaccounting firm that prepared or issued its audit report.☒ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes☐No☒ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-basedcompensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to § 240.10D-1(b).☐ The registrant was not a public company as of June 30, 2025, the last business day of the registrant’s most recently completed second fiscalquarter. Therefore, the registrant cannot calculate the aggregate market value of its voting and non-voting common equity held by non-affiliatesas of such date. The registrant’s Common Stock began trading on the Nasdaq on September 15, 2025. As of March 18, 2026, the registrant had 11,196,169 shares of Common Stock outstanding. DOCUMENTS INCORPORATED BY REFERENCE Portions of the Definitive Proxy Statement for the registrant’s 2026 Annual Meeting of Stockholders, expected to be filed pursuant toRegulation 14A within 120 days from December 31, 2025, are incorporated by reference into Part III of this Annual Report on Form 10-K tothe extent stated herein. Table of Contents PART IItem 1. BusinessItem 2. PropertiesItem 3. Legal ProceedingsItem 4. Mine Safety DisclosuresPART IIItem 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities MarketInformationItem 6. ReservedItem 7. Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem 8. Consolidated Financial Statements and Supplementary DataINDEX TO FINANCIAL STATEMENTSItem 9. Changes in and Disagreements with Accountants on Accounting and Financial DisclosurePART IIIItem 10. Directors, Executive Officers and Corporate GovernanceItem 11. Executive CompensationItem 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder MattersItem 13. Certain Relationships and Related Transactions, and Director IndependenceItem 14. Principal Accountant Fees and ServicesPART IVItem 15. Exhibits and Financial Statement SchedulesItem 16. Form 10-K SummarySIGNATURES Cautionary Note Regarding Forward-Looking Statements This Annual Report on Form 10-K contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of1933, as