As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Tenon Medical, Inc. The largest reported stake is SiVantage Inc.'s, at 12.5%. 3 filings are on record since August 8, 2025 (Schedule 13D, August 8, 2025).
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Key facts
- · Reporting person: Armistice Capital, LLC · Sole voting: 0 · Shared voting: 54,554 · Sole dispositive: 0 · Shared dispositive: 54,554 · SCHEDULE 13G, 2026-08-14
- · Reporting person: Mitchell P. Kopin · Sole voting: 0 · Shared voting: 912,600 · Sole dispositive: 0 · Shared dispositive: 912,600 · SCHEDULE 13G, 2026-07-06
- · Reporting person: SiVantage Inc. · Sole voting: 710,300 · Shared voting: 276,228 · Sole dispositive: 710,300 · Shared dispositive: 276,228 · SCHEDULE 13D, 2025-08-08
Tenon Medical, Inc. has 3 Schedule 13D or 13G filings on record since 2025-08-08. 2 holders' latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| SiVantage Inc. | 12.5% | 986,528 | SCHEDULE 13D, 2025-08-08 | 2025-08-01 |
| Armistice Capital, LLC | 9.99% | 54,554 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| 4.99% | 912,600 | SCHEDULE 13G, 2026-07-06 | 2026-06-29 |
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More on Tenon Medical, Inc. and the records around it.
Tenon Medical, Inc. elsewhere on the record
- Company profile and every filing Sep 2026
- Form D filing Sep 2026
- Form D filing Sep 2026
- IPO filing Jun 2026
- Who owns it
Companies that share a holder
- Mitchell P. Kopin also filed stake reports on 55 other companies: SCWorx Corp. (Sep 2026), NFT Limited (Aug 2026), Silexion Therapeutics Corp (Aug 2026)
- Armistice Capital, LLC also filed stake reports on 120 other companies: Autolus Therapeutics plc (Aug 2026), Bicycle Therapeutics plc (Aug 2026), BioXcel Therapeutics, Inc. (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| SiVantage Inc. | 710,300 | 276,228 | 710,300 | 276,228 | SCHEDULE 13D, 2025-08-08 |
| Armistice Capital, LLC | 0 | 54,554 | 0 | 54,554 | SCHEDULE 13G, 2026-08-14 |
| Steven Boyd | 0 | 54,554 | 0 | 54,554 | SCHEDULE 13G, 2026-08-14 |
| Mitchell P. Kopin | 0 | 912,600 | 0 | 912,600 | SCHEDULE 13G, 2026-07-06 |
| Daniel B. Asher | 0 | 912,600 | 0 | 912,600 | SCHEDULE 13G, 2026-07-06 |
| Intracoastal Capital LLC | 0 | 912,600 | 0 | 912,600 | SCHEDULE 13G, 2026-07-06 |
The latest filing identifies Tenon Medical, Inc. by CUSIP 88066N303 and gives its principal executive office as 104 Cooper Court, Los Gatos, CA 95032 (SCHEDULE 13G, 2026-08-14).
Source of funds (Item 3)
The SImmetry Acquisition On August 1, 2025 (the "Closing Date"), the Issuer entered into an asset purchase agreement (the "SI APA") by and between the Issuer and the Reporting Person, pursuant to which the Issuer acquired substantially all of the assets of the Reporting Person (the "SImmetry Business"), including the assignment of its intellectual property related to sacropelvic fixation and fusion procedures (the "SI Products"), and assumed certain of its current liabilities and contract obligations, as set forth in the SI APA (the "SImmetry Acquisition").SiVantage Inc., SCHEDULE 13D, 2025-08-08
Purpose of Transaction (Item 4)
SiVantage Inc.
Item 3 above is incorporated herein by reference.Item 4 of the SCHEDULE 13D filed 2025-08-08
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-08 | SiVantage Inc. | 12.5% | SCHEDULE 13D |
| 2026-07-06 | Mitchell P. Kopin | 4.99% | SCHEDULE 13G |
| 2026-08-14 | Armistice Capital, LLC | 9.99% | SCHEDULE 13G |
Questions about who owns Tenon Medical, Inc.
Who owns Tenon Medical, Inc.?
On this page, 2 holders' latest ownership filings report 5% or more of Tenon Medical, Inc.: SiVantage Inc. (12.5%, Schedule 13D, filed 2025-08-08) and Armistice Capital, LLC (9.99%, Schedule 13G, filed 2026-08-14).
Who are the largest shareholders of Tenon Medical, Inc.?
By the share each holder's latest filing reports, the largest holders of Tenon Medical, Inc. on this page are SiVantage Inc. (12.5%) and Armistice Capital, LLC (9.99%).
When did SiVantage Inc. buy into Tenon Medical, Inc.?
The filings give report dates, not purchase dates. The earliest filing from SiVantage Inc. on this page is the Schedule 13D, filed 2025-08-08, reporting 12.5%.
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%); 3 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 Tenon Medical, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| September 21, 2026 | Form D, private offering | $4.31M sold | Form D page | Source |
| September 4, 2026 | Form D, private offering | $3M sold | Form D page | Source |
| June 30, 2026 | IPO filing, Form 424B4 | — | IPO filings | Source |
| June 26, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| June 22, 2026 | IPO filing, Form S-1 | — | IPO filings | Source |
| March 18, 2026 | Form D, private offering | $4.30M sold | Form D page | Source |
| November 25, 2025 | Form D, private offering | $2.85M sold | Form D page | Source |
| April 8, 2025 | Form D, private offering | $2.54M sold | Form D page | Source |
| April 8, 2025 | Form D, private offering | $1.47M sold | Form D page | Source |
| April 8, 2025 | Form D, private offering | $4.59M sold | Form D page | Source |
| April 4, 2025 | IPO filing, Form S-1 | — | IPO filings | Source |
| November 4, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
The newest 12 of 17 records.
Tenon Medical, Inc.: every filing and event
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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.