As of November 6, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of LogicMark, Inc. The largest reported stake is Patel Kirtan Sanjaykumar's, at 5.6%. 5 filings are on record since August 14, 2025 (Schedule 13D, October 2, 2026).
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Key facts
- · Reporting person: Chia-Lin Simmons · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13D/A, 2026-10-15
- · Reporting person: Patel Kirtan Sanjaykumar · Sole voting: 50,000 · Shared voting: 0 · Sole dispositive: 50,000 · Shared dispositive: 0 · SCHEDULE 13D, 2026-10-02
- · Holder: Chia-Lin Simmons · Percent: 8.3% · SCHEDULE 13D
- · Holder: Alpha Capital Anstalt · Percent: 0% · SCHEDULE 13G/A
- · Holder: Altium Capital Management LLC · Percent: 3.11% · SCHEDULE 13G/A
LogicMark, Inc. has 5 Schedule 13D or 13G filings on record since 2025-08-14. 1 holder's latest filing reports 5% or more of common stock, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 5.6% | 50,000 | SCHEDULE 13D, 2026-10-02 | 2025-12-31 | |
| Altium Capital Management LLC | 3.11% | 1,881,534 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Alpha Capital Anstalt | 0% | 3,026 | SCHEDULE 13G/A, 2026-05-15 | 2026-05-13 |
| 0% | 0 | SCHEDULE 13D/A, 2026-10-15 | 2026-10-13 |
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More on LogicMark, Inc. and the records around it.
LogicMark, Inc. elsewhere on the record
- Acquisition Oct 2026
- Form D filing Aug 2026
- IPO filing Feb 2025
- Who owns it
Companies that share a holder
- Altium Capital Management LLC also filed stake reports on 5 other companies: Expion360 Inc. (Nov 2025), Femto Technologies Inc (Aug 2025), Sharps Technology Inc. (Aug 2025)
- Alpha Capital Anstalt also filed stake reports on 7 other companies: FABRIC.AI, INC. (Aug 2026), CYABRA, INC. (Mar 2026), ALXCRYPTO HOLDINGS, INC. f/k/a QUALIGEN THERAPEUTICS, INC. (Jan 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Patel Kirtan Sanjaykumar | 50,000 | 0 | 50,000 | 0 | SCHEDULE 13D, 2026-10-02 |
| Chia-Lin Simmons | 0 | 0 | 0 | 0 | SCHEDULE 13D/A, 2026-10-15 |
The latest filing identifies LogicMark, Inc. by CUSIP 67091J800 and gives its principal executive office as 2801 Diode Lane, Louisville, KY 40299 (SCHEDULE 13D/A, 2026-10-15).
Source of funds (Item 3)
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.Patel Kirtan Sanjaykumar, SCHEDULE 13D, 2026-10-02
The Reporting Person beneficially owns 0 shares of Common Stock. As described in Item 4 of this Amendment No. 1, on July 31, 2026, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement"), dated as of July 31, 2026, with Langham Project, LLC, a Nevada limited liability company ("Parent"), and Langham Merger Sub, Inc., a Nevada corporation and wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer, with the Issuer surviving as a wholly owned subsidiary of Parent (the "Merger").Chia-Lin Simmons, SCHEDULE 13D/A, 2026-10-15
Purpose of Transaction (Item 4)
Chia-Lin Simmons
The Reporting Person is the President, Chief Executive Officer and a director of the Issuer. See also the comment to Item 1 of this Amendment No. 1 and response to Item 3 of this Amendment No. 1. The Issuer entered into the Merger Agreement, dated as of July 31, 2026, with the Parent, and Merger Sub, pursuant to which Merger Sub merged with and into the Issuer, with the Issuer surviving as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, among other things, at the effective time of the Merger, each share of Common Stock issued and outstanding immediately prior to such time was cancelled and automatically converted into the right to receive cash merger consideration as set forth in the Merger Agreement. Reference is made to the Current Report on Form 8-Ks filed by the Issuer with the SEC on August 3, 2026 and October 13, 2026, each of which further describe the Merger. The Merger closed on October 13, 2026.Item 4 of the SCHEDULE 13D/A filed 2026-10-15
Patel Kirtan Sanjaykumar
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.Item 4 of the SCHEDULE 13D filed 2026-10-02
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-14 | Altium Capital Management LLC | 3.11% | SCHEDULE 13G/A |
| 2026-05-15 | Alpha Capital Anstalt | 0% | SCHEDULE 13G/A |
| 2026-08-03 | Chia-Lin Simmons | 8.3% | SCHEDULE 13D |
| 2026-10-02 | Patel Kirtan Sanjaykumar | 5.6% | SCHEDULE 13D |
| 2026-10-15 | Chia-Lin Simmons | 0% | SCHEDULE 13D/A |
Questions about who owns LogicMark, Inc.
Who owns LogicMark, Inc.?
On this page, one holder's latest ownership filing reports 5% or more of LogicMark, Inc.: Patel Kirtan Sanjaykumar (5.6%, Schedule 13D, filed 2026-10-02).
When did Patel Kirtan Sanjaykumar buy into LogicMark, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Patel Kirtan Sanjaykumar on this page is the Schedule 13D, filed 2026-10-02, reporting 5.6%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 5 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for LogicMark, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 13, 2026 | Acquired by Langham Project LLC | — | Acquisition | Source |
| October 13, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| August 11, 2026 | Form D, private offering | $250K sold | Form D page | Source |
| July 30, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| February 18, 2025 | IPO filing, Form 424B4 | $0.59 a share | IPO filings | Source |
| February 11, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| February 7, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| January 21, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| January 3, 2025 | IPO filing, Form S-1 | — | IPO filings | Source |
| December 30, 2024 | IPO filing, Form 424B4 | — | IPO filings | Source |
| August 5, 2024 | IPO filing, Form 424B4 | $0.4654 a share | IPO filings | Source |
| July 26, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.