X0202 SCHEDULE 13D 0002157971 XXXXXXXX LIVE Common Stock, par value $0.0001 per share 12/31/2025 false 0001566826 67091J800 LogicMark, Inc.

2801 DIODE LANE LOUISVILLE KY 40299

Kirtan S. Patel 8137085845 15257 Amberly Dr Ste 172 Tampa FL 33647 0002157971 N Patel Kirtan Sanjaykumar PF OO N X1 50000.00 0.00 50000.00 0.00 50000.00 N 5.6 IN The beneficial ownership percentage is based on 899,759 shares of Common Stock outstanding as reported in the Issuer's definitive proxy statement dated September 9, 2026. The shares reported include 15,000 shares held in a Roth 401(k) account for the benefit of the Reporting Person and 20,000 shares held by a limited liability company wholly owned by a charitable remainder unitrust, of which the Reporting Person is the manager and trustee, respectively. Common Stock, par value $0.0001 per share LogicMark, Inc. 2801 DIODE LANE LOUISVILLE KY 40299 This Schedule 13D constitutes a late filing due to the Reporting Person's inadvertent failure to aggregate, for purposes of Section 13(d), shares held in separate accounts over which he has voting and investment power. The shares were acquired in open-market purchases on various dates. Kirtan Sanjaykumar Patel (the "Reporting Person") 15257 Amberly Dr, Ste 172, Tampa, FL 33647 Private Investor The Reporting Person, during the last five years, has not been convicted in any criminal proceeding (excluding traffic violations or similar misdemeanors). The Reporting Person, during the last five years, was not a party to a civil proceeding of a judicial or administrative body of competent jurisdiction as a result of which he was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. United States The 50,000 shares reported herein were acquired in open-market purchases for an aggregate purchase price of approximately $175,706. The 15,000 shares held directly by the Reporting Person were purchased with his personal funds; the 15,000 shares held in the Roth 401(k) account were purchased with funds of that account; and the 20,000 shares held by the limited liability company were purchased with funds of the limited liability company, which is wholly owned by a charitable remainder unitrust. The Reporting Person acquired the shares for investment purposes. In connection with the proposed merger of Langham Merger Sub, Inc. with and into the Issuer pursuant to the Agreement and Plan of Merger dated as of July 31, 2026, by and among the Issuer, Langham Project, LLC and Langham Merger Sub, Inc. (the "Merger"), the Reporting Person has sent to the Issuer written notices of intent to demand payment for the shares pursuant to Nevada Revised Statutes 92A.300 to 92A.500, and has voted against the Merger. The Reporting Person may communicate with the Issuer, its directors and officers, Langham Project, LLC, or other stockholders regarding the Merger and the consideration payable therein. Except as set forth herein, the Reporting Person has no present plans or proposals that relate to or would result in any of the matters described in paragraphs (a) through (j) of Item 4 of Schedule 13D. The Reporting Person may review his investment and change his intentions at any time, subject to applicable law. See rows 11 and 13 of the cover page. The 50,000 shares consist of 15,000 shares held directly by the Reporting Person; 15,000 shares held in a Roth 401(k) account for the benefit of the Reporting Person; and 20,000 shares held by a limited liability company of which the Reporting Person is manager and which is wholly owned by a charitable remainder unitrust of which the Reporting Person is trustee. The Reporting Person disclaims beneficial ownership of the shares held by the limited liability company except to the extent of his pecuniary interest therein. See rows 7 through 10 of the cover page. On September 29, 2026, the Reporting Person sold an aggregate of 1,080 shares of Common Stock (including 320 shares held in a retirement account for his benefit) in open-market transactions on the OTC market at prices ranging from $1.03 to $1.04 per share. Except as set forth herein, no transactions in the Common Stock were effected by the Reporting Person during the past 60 days. The limited liability company referred to in Item 5(a) (and, through it, the charitable remainder unitrust) has the right to receive dividends from, and the proceeds from the sale of, the 20,000 shares held by it. The Roth 401(k) account referred to in Item 5(a) has the right to receive dividends from, and the proceeds from the sale of, the 15,000 shares held in it for the benefit of the Reporting Person. No such interest relates to more than 5% of the Common Stock. Not applicable. None. None. Patel Kirtan Sanjaykumar /s/ Kirtan Sanjaykumar Patel 10/02/2026