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STATES\n\nSECURITIES AND EXCHANGE COMMISSION\n\nWashington, D.C. 20549\n\n \n\nForm 10-K\n\n \n\n(Mark One)\n\n☒ ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934\n\n \n\nFor the fiscal year ended December 31, 2025\n\n \n\n☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934\n\n \n\nFor the transition period from ______________\nto ______________\n\n \n\nCommission file number 000-54617\n\n \n\nUS NUCLEAR CORP.\n\n(Exact name of registrant as specified in its\ncharter)\n\n \n\nDelaware 45-4535739\n\nState or other jurisdiction\nof\n\nIncorporation or organization\n \n(I.R.S. Employer\n\nIdentification No.)\n\n \n\nc/o Robert I. Goldstein\n\n7051 Eton Avenue\n\nCanoga Park, CA 91303\n\n(Address of principal executive offices)\n\n \n\n(818) 883-7043\n\n(Registrant’s telephone number, including\narea code)\n\n \n\nSecurities registered under Section 12(b) of the\nExchange Act:\n\nNone.\n\n \n\nSecurities registered under Section 12(g) of the\nExchange Act:\n\n \n\nCommon Stock, $0.0001 par value per share\n\n(Title of Class)\n\n \n\nIndicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒\n\n \n\nIndicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Exchange Act. Yes  ☐ No ☒\n\n \n\nIndicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐\n\n \n\nIndicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☒ No ☐\n\n \n\nIndicate by check mark if disclosure of delinquent\nfilers in response to Item 405 of Regulation S-K (§229.405) is not contained herein, and will not be contained, to the best of registrant’s\nknowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to\nthis Form 10-K. ☐\n\n \n\nIndicate by check mark whether the registrant\nis a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company.\nSee the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,”\nand “emerging growth company” in Rule 12b-2 of the Exchange Act.\n\n \n\nLarge accelerated filer\n☐\nAccelerated filer \n☐\n\nNon-accelerated filer ☒Smaller reporting company ☒\n\nEmerging growth company ☐ \n\n \n\nIf an emerging growth company, indicate by check\nmark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting\nstandards provided pursuant to Section 13(a) of the Exchange Act. ☐\n\n \n\nIndicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐\n\n \n\nIf the securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐\n\n \n\nIndicate by check mark whether any of those error\ncorrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s\nexecutive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐ \n\n \n\nIndicate by check mark whether the issuer is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐  No ☒ \n\n \n\nState the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrants most recently completed second fiscal quarter. $1,386,600 as of June 30, 2025.\n\n \n\nThe number of shares of the Registrant’s common stock outstanding as of May 29, 2026, was 62,822,263. \n\n \n\n \n\n \n\n  \n\n \n\nUS NUCLEAR CORP.\n\nFORM 10-K\n\n \n\nTABLE OF CONTENTS\n\n \n\n \n \n \n \nPage\n\n \n \n[PART\nI](#a_001)"}