LogicMark Inc美股招股说明书(2026-04-03版)

PROSPECTUS SUPPLEMENT NO. 9(TO PROSPECTUS DATED FEBRUARY 18, 2025) 2,260,000 UNITSEACH UNIT CONSISTING OFONE SHARE OF COMMON STOCK,ONE SERIES C WARRANT TO PURCHASE ONESHARE OF COMMON STOCK AND ONE SERIES DWARRANT TO PURCHASE ONE SHARE OF COMMON STOCK* 22,146,750 PRE-FUNDED UNITSEACH PRE-FUNDED UNIT CONSISTING OFONE PRE-FUNDED WARRANT TO PURCHASE ONE SHARE OF COMMON STOCK,ONE SERIES C WARRANT TO PURCHASE ONE SHARE OF COMMON STOCKAND ONE SERIES D WARRANT TO PURCHASE ONE SHARE OF COMMON STOCK* 119,773,750* SHARES OF COMMON STOCK UNDERLYING THE SERIES C WARRANTS, THESERIES D WARRANTS AND THE PRE-FUNDED WARRANTS LogicMark, Inc. This prospectus supplement amends and supplements the prospectus, dated February 18, 2025, as supplemented or amended from timeto time (the “Prospectus”), which forms a part of the Registration Statement on Form S-1, as amended (No. 333-284135), and theRegistration Statement on Form S-1MEF (No. 333-284997) of LogicMark, Inc., a Nevada corporation (the “Company”). Thisprospectus supplement is being filed to update and supplement the information in the Prospectus with the information contained in (i)our Current Reports on Form 8-K, filed with the U.S. Securities and Exchange Commission (the “SEC”) on June 26, 2025, July 11,2025, August 15, 2025 and October 27, 2025 (the “Current Reports”) and (ii) our Annual Report on Form10-K for the fiscal yearended December 31, 2025, filed with the SEC on March 27, 2026 (the “Annual Report”). Accordingly, we have attached the CurrentReports and the Annual Report to this prospectus supplement. The Prospectus and this prospectus supplement relate to the offer and sale by the Company of an aggregate of 2,260,000 units(“Units”) consisting of: (i) 2,260,000 shares of common stock, par value $0.0001 per share (the “Common Stock”); (ii) Series Cwarrants to purchase up to 2,260,000 shares of Common Stock (the “Series C Warrants”), and (iii) Series D warrants to purchase up to2,260,000 shares of Common Stock (the “Series D Warrants”, and collectively with the Series C Warrants, the “Warrants”); and (y)22,146,750 pre-funded units of the Company (the “Pre-Funded Units”), consisting of (i) pre-funded common stock purchase warrantsexercisable for up to 22,146,750 shares of Common Stock (the “Pre-Funded Warrants”), (ii) Series C Warrants exercisable for up to22,146,750 shares of Common Stock and (iii) Series D Warrants exercisable for up to 22,146,750 shares of Common Stock, pursuantto the Registration Statement and securities purchase agreements, each dated February 18, 2025, between the Company and each of thepurchasers signatory thereto. *Each Series C Warrant, upon exercise at a price of $0.59 per share (100% of the public offering price of the Unit), and each SeriesD Warrant, upon exercise at a price of $0.885 per share (150% of the public offering price of the Unit), will result in the issuanceof one share of Common Stock to the holder of such Warrant; provided, however, that the Series D Warrants also contain analternative cashless exercise provision, by which such exercising holder will have the right at any time upon receipt ofStockholder Approval and the filing of an Amendment (each as defined in the Prospectus) to receive three (3) shares of CommonStock for each Series D Warrant they exercise, without any cash payment to the Company. The Common Stock is listed on the OTCID market operated by the OTC Markets Group Inc. (“OTCID”) under the symbol “LGMK.”The last reported closing price for the Common Stock on the OTCID on March 31, 2026 was $0.536 per share. On October 24, 2025,the Company effected a one-for-seven hundred fiftyreverse stock split of all of our outstanding shares of Common Stock (the“Reverse Stock Split”). Unless the context expressly indicates otherwise, (i) all references to share and per share amounts and prices inthe Prospectus, in any prospectus supplement filed by the Company with the SEC prior to the effective date of the Reverse Stock Splitand on the cover page of this prospectus supplement do not give effect to the Reverse Stock Split, and (ii) all references to share andper share amounts referred to in any Current Reports filed by the Company with the SEC subsequent to the effective date of theReverse Stock Split and in the Annual Report reflect the amounts after giving effect to the Reverse Stock Split. This prospectus supplement updates and supplements the information in the Prospectus and is not complete without, and may not bedelivered or utilized except in combination with, the Prospectus, including any amendments or supplements thereto. This prospectussupplement should be read in conjunction with the Prospectus and if there is any inconsistency between the information in theProspectus and this prospectus supplement, you should rely on the information in this prospectus supplement. Investing in our securities involves a high degree of risk. See “Risk Factors” beginning on page 10 of the Prospectus, as well asother infor