Tenon Medical, Inc. 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM _________ to __________ COMMISSION FILE NUMBER 001-41364 TENON MEDICAL, INC. (Exact name of registrant as specified in its charter) Delaware 45-5574718 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 104 Cooper Court Los Gatos , CA 95032 (408) 649-5760 (Address of principal executive offices) (Zip Code) (Registrant’s telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, par value $0.001 per share TNON The Nasdaq Stock Market LLC Warrants TNONW The Nasdaq Stock Market LLC Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 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 ☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files). Yes ☒ No ☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filer ☐ Accelerated filer ☐ Non-accelerated filer ☒ Smaller reporting company ☒ Emerging growth company ☒ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act) Yes ☐ No ☒ As of November 13, 2025, the registrant had a total of 8,605,740 shares of its common stock, par value $0.001 per share, issued and outstanding. INDEX Page PART I. FINANCIAL INFORMATION 1 Item 1. Condensed Financial Statements (unaudited) 1 Condensed Balance Sheets 1 Condensed Statements of Operations and Comprehensive Loss 2 Condensed Statements of Convertible Preferred Stock and Stockholders’ Equity 3 Condensed Statements of Cash Flows 5 Notes to Condensed Financial Statements 6 Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations 17 Item 3. Quantitative and Qualitative Disclosures About Market Risk 22 Item 4. Controls and Procedures 23 PART II. OTHER INFORMATION 24 Item 1. Legal Proceedings 24 Item 1A. Risk Factors 24 Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 24 Item 3. Defaults Upon Senior Securities 24 Item 4. Mine Safety Disclosures 24 Item 5. Other Information 24 Item 6. Exhibits 25 SIGNATURES 27 i CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS This Quarterly Report on Form 10-Q contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends impacting the financial condition of our business. Forward-looking statements should not be read as a guarantee of future performance or results and will not necessarily be accurate indications of the times at, or by, which such performance or results will be achieved. Forward-looking statements are based on information available at the time those statements are made and/or management’s good faith belief as of that time with respect to future events and are subject to risks and uncertainties that could cause actual performance or results to differ materially from those expressed in or suggested by the forward-looking statements. Forward-looking statements include all statements that are not historical facts. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “could,” “would,” “expect,” “intend,” “seek,” “plan,” “anticipate,” “believe,” “estimate,” “project,” “predict,” “potential,” “might,” “forecast,” “continue,” or the negative of those terms, and similar expressions and comparable terminology intended to reference future periods. Forward-looking statements include, but are not limited to, statements about: ● Our ability to effectively operate our business segments; ● Our ability to manage our research, development, expansion, growth and operating expenses; ● Our ability to evaluate and measure our business, prospects and performance metrics; ● Our ability and our national distributor’s ability to compete, directly and indirectly, and succeed in the highly competitive medical devices industry; ● Our ability to respond and adapt to changes in technology and customer behavior; and ● Our ability to protect our intellectual property and to develop, maintain and enhance a strong brand. Should one or more of these risks or uncertainties materialize, or should the underlying assumptions prove incorrect, actual results may differ significantly from those anticipated, believed, estimated, expected, intended or planned. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We cannot guarantee future results, levels of activity, performance or achievements. Accordingly, the forward-looking statements in this Quarterly Report on Form 10-Q should not be regarded as representations that the results or conditions described in such statements will occur or that our objectives and plans will be achieved, and we do not assume any responsibility for the accuracy or completeness of any of these forward-looking statements. ii PART I – FINANCIAL INFORMATION ITEM 1. Condensed Financial Statements (Unaudited) Tenon Medical, Inc. Condensed Balance Sheets (Unaudited) (In thousands, except share data) September 30, December 31, 2025 2024 ASSETS Current assets: Cash and cash equivalents $ 3,442 $ 6,535 Accounts receivable, net 1,311 863 Inventory, net 1,364 606 Prepaid expenses and other current assets 428 206 Total current assets 6,545 8,210 Property and equipment, net 663 752 Deposits 51 51 Operating lease right-of-use asset 200 399 Deferred offering costs — 431 Intangible assets, net 500 — Goodwill (Note 3) 2,407 — TOTAL ASSETS $ 10,366 $ 9,843 Liabilities and Stockholders’ EQUITY Current liabilities: Accounts payable $ 625 $ 369 Accrued expenses 1,514 910 Current portion of accrued commissions 686 303 Current portion of operating lease liability 216 287 Total current liabilities 3,041 1,869 Accrued commissions, net of current portion 1,516 1,862 Operating lease liability, net of current portion — 141 Contingent consideration (Note 3) 1,011 — Total liabilities 5,568 3,872 Commitments and contingencies (Note 9) Stockholders’ equity: Series A convertible preferred stock, $ 0.001 par value; 4,500,000 shares authorized at September 30, 2025 and December 31, 2024; 204,159 and 256,968 shares issued and outstanding at September 30, 2025 and December 31, 2024, respectively 2,622 3,300 Series B convertible preferred stock, $ 0.001 par value; 491,222 shares authorized at September 30, 2025 and December 31, 2024; 86,454 shares issued and outstanding at September 30, 2025 and December 31, 2024 452 452 Common stock, $ 0.001 par value; 130,000,000 shares authorized at September 30, 2025 and December 31, 2024; 8,605,508 and 3,138,804 shares issued and outstanding at September 30, 2025 and December 31, 2024, respectively 9 3 Additional paid-in capital 80,185 70,962 Accumulated deficit ( 78,470 ) ( 68,746 ) Total stockholders’ equity 4,798 5,971 TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 10,366 $ 9,843 The accompanying notes are an integral part of these condensed financial statements. 1 Tenon Medical, Inc. Condensed Statements of Operations and Comprehensive Loss (Unaudited) (In thousands, except per share data) Three Months Ended September 30, Nine Months Ended September 30, 2025 2024 2025 2024 Revenue $ 1,173 $ 887 $ 2,463 $ 2,507 Cost of sales 400 469 1,122 1,149 Gross Profit 773 418 1,341 1,358 Operating Expenses Research and development 428 657 1,622 2,034 Sales and marketing 1,538 1,212 4,304 4,041 General and administrative 2,199 1,764 5,341 5,876 Total Operating Expenses 4,165 3,633 11,267 11,951 Loss from Operations ( 3,392 ) ( 3,215 ) ( 9,926 ) ( 10,593 ) Other Income (Expense) Gain on investments 53 31 202 97 Interest expense — — — ( 34 ) Other expense, net — — — ( 56 ) Total Other Income, net 53 31 202 7 Net Loss $ ( 3,339 ) $ ( 3,184 ) $ ( 9,724 ) $ ( 10,586 ) Net Loss Per Share of Common Stock Basic and diluted $ ( 0.40 ) $ ( 3.63 ) $ ( 1.48 ) $ ( 18.60 ) Weighted-Average Shares of Common Stock Outstanding Basic and diluted 8,250 877 6,581 569 Consolidated Statements of Comprehensive Loss: Net loss $ ( 3,339 ) $ ( 3,184 ) $ ( 9,724 ) $ ( 10,586 ) Foreign currency translation adjustment — — — 46 Total comprehensive loss $ ( 3,339 ) $ ( 3,184 ) $ ( 9,724 ) $ ( 10,540 ) The accompanying notes are an integral part of these condensed financial statements. 2 Tenon Medical, Inc. Condensed Statements of Convertible Preferred Stock and Stockholders’ Equity (Unaudited) (In thousands, except share data) Three months ended September 30, 2025 and 2024: Series A Convertible Preferred Stock Series B Convertible Preferred Stock Common Stock Additional Paid-In Accumulated Shares Amount Shares Amount Shares Amount Capital Deficit Total Balance at June 30, 2025 256,968 $ 3,300 86,454 $ 452 7,592,217 $ 8 $ 78,084 $ ( 75,131 ) $ 6,713 Stock-based compensation expense — — — — — — 58 — 58 Shares issued for acquisition of assets of SiVantage, Inc. — — — — 710,300 1 1,365 — 1,366 Issuance of common stock upon conversion of Series A convertible preferred stock ( 52,809 ) ( 678 ) — — 300,005 — 678 — — Release of restricted stock units — — — — 2,986 — — — — Net loss — — — — — — — ( 3,339 ) ( 3,339 ) Balance at September 30, 2025 204,159 $ 2,622 86,454 $ 452 8,605,508 $ 9 $ 80,185 $ ( 78,470 ) $ 4,798 Balance at June 30, 2024 256,968 $ 3,300 — — 472,604 — 60,007 ( 62,475 ) $ 832 Stock-based compensation expense — — — — — — 910 — 910 Issuance of Series B preferred stock and warrants, net of issuance costs — — 86,454 452 — — 37 — 489 Issuance of common stock, prefunded warrants, and warrants, net of issuance costs — — — — 55,000 — 3,826 — 3,862 Issuance of common stock upon exercise of prefunded warrants — — — — 1,167,850 1 ( 1 ) — — Issuance of common stock and warrants under inducement agreement — — — — 1,222,850 1 4,305 — 4,306 Issuance of common stock upon exercise of warrants — — — — 32,266 — 812 — 812 Issuance of common stock, net of issuance cost — — — — 37,618 — 164 — 164 Issuance of common stock for reverse stock split — — — — 147,825 1 ( 1 ) — — Net loss — — — — — — — ( 3,184 ) ( 3,184 ) Balance at September 30, 2024 256,968 $ 3,300 86,454 $ 452 3,136,013 $ 3 $ 70,095 $ ( 65,659 ) $ 8,191 3 Nine months ended September 30, 2025 and 2024: Series A Convertible Preferred Stock Series B Convertible Preferred Stock Common Stock Additional Paid-In Accumulated Accumulated Other Comprehensive Shares Amount Shares Amount Shares Amount Capital Deficit Loss Total Balance at December 31, 2024 256,968 $ 3,300 86,454 $ 452 3,138,804 $ 3 $ 70,962 $ ( 68,746 ) $ — $ 5,971 Stock-based compensation expense — — — — — — 1,347 — — 1,347 Issuance of common stock, pre-funded warrants and warrants under inducement agreement, net of issuance costs — — — — 2,445,700 3 2,732 — — 2,735 Issuance of common stock, prefunded warrants, and warrants, net of issuance costs — — — — 2,005,000 2 3,522 — — 3,524 Shares issued for acquisition of assets of SiVantage, Inc. — — — — 710,300 1 1,365 — — 1,366 Issuance of common stock upon conversion of Series A convertible preferred stock ( 52,809 ) ( 678 ) — — 300,005 678 — — — Release of restricted stock units — — — — 5,699 — — — — — Deferred financing costs — — — — — — ( 421 ) — — ( 421 ) Net loss — — — — — — — ( 9,724 ) — ( 9,724 ) Balance at September 30, 2025 204,159 $ 2,622 86,454 $ 452 8,605,508 $ 9 $ 80,185 $ ( 78,470 ) $ — $ 4,798 Balance at December 31, 2023 — $ — — $ — 325,039 $ — $ 55,897 $ ( 55,073 ) $ ( 46 ) $ 778 Stock-based compensation expense — — — — — — 2,962 — — 2,962 Issuance of Series A preferred stock and warrants, net of issuance costs 256,968 3,300 — — — — 254 — — 3,554 Issuance of Series B preferred stock and warrants, net of issuance costs — — 86,454 452 — — 37 — — 489 Issuance of common stock, prefunded warrants, and warrants, net of issuance costs — — — — 55,000 — 3,862 — — 3,862 Issuance of common stock upon exercise of prefunded warrants — — — — 1,167,850 1 ( 1 ) — — — Issuance of common stock and warrants under inducement agreement — — — — 1,222,850 1 4,305 — — 4,306 Issuance of common stock upon exercise of warrants — — — — 32,266 — 812 — — 812 Issuance of common stock, net of issuance costs — — — — 178,048 — 1,968 — — 1,968 Release of restricted stock units — — — — 7,135 — — — — — Issuance of common stock for reverse stock split — — — — 147,825 1 ( 1 ) — — — Other comprehensive income — — — — — — — — 46 46 Net loss — — — — — — — ( 10,586 ) — ( 10,586 ) Balance at September 30, 2024 256,968 $ 3,300 86,454 $ 452 3,136,013 $ 3 $ 70,095 $ ( 65,659 ) $ — $ 8,191 The accompanying notes are an integral part of these condensed financial statements. 4 Tenon Medical, Inc. Condensed Statements of Cash Flows (Unaudited) (In thousands) Nine Months Ended September 30, 2025 2024 Cash Flows from Operating Activities Net loss $ ( 9,724 ) $ ( 10,586 ) Adjustments to reconcile net loss to net cash used in operating activities: Stock-based compensation expense 1,347 2,962 Depreciation and amortization 167 291 Provision for credit losses on accounts receivable — 46 Amortization of operating right-of-use asset 199 183 Increase (decrease) in cash resulting from changes in: Accounts receivable ( 448 ) ( 404 ) Inventory ( 554 ) ( 53 ) Prepaid expenses and other assets ( 203 ) ( 154 ) Accounts payable 266 660 Accrued expenses 641 143 Operating lease liability ( 212 ) ( 189 ) Net cash used in operating activities ( 8,521 ) ( 7,101 ) Cash Flows from Investing Activities Purchase of assets from SiVantage, Inc. ( 750 ) — Purchases of property and equipment ( 81 ) ( 223 ) Cash used in investing activities ( 831 ) ( 223 ) Cash Flows from Financing Activities Gross proceeds from issuance of common stock, prefunded warrants and warrants 4,010 4,500 Gross proceeds from issuance of common stock, prefunded warrants and warrants under inducement agreement 3,057 4,647 Gross proceeds from issuance of Series A convertible preferred stock — 2,605 Gross proceeds from issuance of Series B convertible preferred stock — 550 Gross proceeds from issuance of common stock — 2,163 Gross proceeds from issuance of common stock upon exercise of warrants — 812 Offering costs ( 808 ) ( 1,265 ) Net cash provided by financing activities 6,259 14,012 Effect of foreign currency translation on cash flow — 46 Net (Decrease) Increase in Cash and Cash Equivalents ( 3,093 ) 6,734 Cash and Cash Equivalents at Beginning of Period 6,535 2,428 Cash and Cash Equivalents at End of Period $ 3,442 $ 9,162 Supplemental Disclosures of Cash Flow Information Non-cash investing and financing activities: Warrant modification costs $ 1,402 $ 992 Preferred stock issued upon conversion of debt and accrued interest $ — $ 1,186 Reclassification of deferred offering costs to additional paid-in capital $ 421 $ 238 Common stock issued upon conversion of Series A preferred stock $ 678 $ — Common stock issued for purchase of assets from SiVantage, Inc. $ 1,366 $ — Contingent consideration for purchase of assets from SiVantage, Inc. $ 1,011 $ — The accompanying notes are an integral part of these condensed financial statements. 5 Notes to Condensed Financial Statements (unaudited) (in thousands, except share and per-share data) 1. Organization and Business Nature of operations Tenon Medical, Inc. (the “Company”) was incorporated in the State of Delaware on June 19, 2012 and was headquartered in San Ramon, California until June 2021 when it relocated to Los Gatos, California. The Company is a medical device company dedicated to transforming care for patients with certain sacro-pelvic disorders. The Company has developed The Catamaran™ SI Joint Fusion System (“The Catamaran System”) that offers a novel, less invasive approach to the SI Joint using a single, robust, titanium implant for treatment of the most common types of SI Joint disorders that cause lower back pain. The Company received U.S. Food and Drug Administration (“FDA”) clearance in 2018 for The Catamaran System and is currently focused on the US market. Since the national launch of The Catamaran System in October 2022, the Company is focused on three commercial opportunities: 1) Primary SI Joint procedures, 2) Revision procedures of failed SI Joint implants and 3) SI Joint fusion adjunct to a spine fusion construct. In August 2025, the Company closed the SImmetry Acquisition and the SIMPL Acquisition, as described in Note 3, purchasing substantially all of the assets of SiVantage, Inc., including the SImmetry SI Joint Fusion System that treats disorders of the sacroiliac joint (the “SI Joint”) using a single, robust, titanium implant. 2. Summary of Significant Accounting Principles Basis of presentation The accompanying unaudited condensed financial statements have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC”). As permitted under these rules and regulations, the Company has condensed or omitted certain financial information and footnote disclosures normally included in its annual financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The condensed balance sheet as of December 31, 2024 has been derived from the Company’s audited financial statements, which are included in its Annual Report on Form 10-K filed with the SEC on March 26, 2025 (the “Annual Report”). These condensed financial statements have been prepared on the same basis as the Company’s annual financial statements and, in management’s opinion, reflect all adjustments, consisting only of normal recurring adjustments, that are necessary for a fair presentation of its financial information. The interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These unaudited condensed financial statements and accompanying notes should be read in conjunction with the Company’s audited financial statements as of and for the years ended December 31, 2024 and 2023 included in its Annual Report. The Company’s significant accounting policies are disclosed in the Annual Report. Material changes in the Company’s significant accounting policies during the nine months ended September 30, 2025 include accounting for business combinations as described below. Going concern uncertainty and liquidity requirements The accompanying condensed financial statements have been prepared assuming the Company will continue as a going concern, which contemplates the realization of assets and the settlement of liabilities and commitments in the normal course of business. There is substantial doubt about the Company’s ability to continue as a going concern for one year after the date that these financial statements are issued. Since inception, the Company has incurred losses and negative cash flows from operations. Management expects to incur additional operating losses and negative cash flows from operations in the foreseeable future as the Company continues its product development programs and the commercialization of The Catamaran System. Based on the Company’s expected level of revenues and expenditures, the Company believes that its existing cash and cash equivalents as of September 30, 2025 will not provide sufficient funds to enable it to meet its obligations for a period of at least twelve months from the date of the filing of these financial statements. The Company plans to raise the necessary additional capital through one or a combination of public or private equity offerings, debt financings, and collaborations (see Note 11). The financial statements do not include any adjustments that might result from the outcome of this uncertainty. 6 Use of estimates The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect certain reported amounts and disclosures. Accordingly, actual results could differ from those estimates. Significant estimates made by management include, but are not limited to, the determination of acquisition purchase price and the allocation of purchase price to the fair values of assets acquired and liabilities assumed, collectability of accounts receivable, accrued liabilities, accrued commissions, obsolescence of inventory and stock-based compensation. Reverse Stock Split On September 6, 2024, the Company effected a 1-for-8 reverse stock split (the “2024 Reverse Stock Split”) by filing an amendment to the Company’s Amended and Restated Certificate of Incorporation, as amended, with the Delaware Secretary of State. The 2024 Reverse Stock Split combined every eight shares of our common stock issued and outstanding immediately prior to effecting the 2024 Reverse Stock Split into one share of common stock. No fractional shares were issued in connection with the 2024 Reverse Stock Split. All historical share and per share amounts reflected throughout this document have been adjusted to reflect the 2024 Reverse Stock Split. The authorized number of shares and the par value per share of the Company’s common stock were not affected by the 2024 Reverse Stock Split. Business Combinations The Company accounts for business combinations in accordance with Accounting Standards Codification (“ASC”) 805, Business Combinations , which requires that assets acquired and liabilities assumed be recorded at their respective fair values on the date of acquisition. The fair value of the consideration paid is assigned to the underlying net assets of the acquired business based on their respective fair values. Any excess of the purchase price over the estimated fair values of the net assets acquired is recorded to goodwill. Intangible assets acquired are amortized over the expected life of the asset. Fair value determinations and useful life estimates are based on, among other factors, estimates of expected future cash flows, estimates of appropriate discount rates, estimated useful lives of the intangible assets acquired and other factors. Although the Company believes the assumptions and estimates made have been reasonable and appropriate, actual results may vary significantly from estimated results. The Company’s assumptions and estimates are subject to refinement and, as a result, during the measurement period, which may be up to one year from the acquisition date, the Company records adjustments to the assets acquired and liabilities assumed with the corresponding offset to goodwill. Income Taxes Income taxes are recorded in accordance with ASC 740, Income Taxes , which provides for deferred taxes using an asset and liability approach. Under this method, the Company records deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the tax basis of assets and liabilities using enacted tax rates expected to be in effect when the differences are expected to reverse. Valuation allowances are provided when necessary to reduce net deferred tax assets to the amount that is more likely than not to be realized. Based on the available evidence, the Company is unable, at this time, to support the determination that it is more likely than not that its deferred tax assets will be utilized in the future. Accordingly, the Company recorded a full valuation allowance as of September 30, 2025 and December 31, 2024. The Company intends to maintain valuation allowances until sufficient evidence exists to support its reversal. The Company also expects the usage of the net operating loss carryforwards will be limited based on changes in the Company’s ownership. Net loss per share Basic net loss per share is based upon the weighted average number of common shares outstanding. Diluted net loss per share is based on the assumption that all potential common stock equivalents (restricted stock units, stock options, warrants and convertible preferred stock) are converted or exercised. The calculation of diluted net loss per share excludes potential common stock equivalents if the effect is anti-dilutive. The Company’s weighted average common shares outstanding for basic and diluted are the same because the effect of the potential common stock equivalents is anti-dilutive. The Company had the following dilutive common stock equivalents as of September 30, 2025 and 2024 which were excluded from the calculation because their effect was anti-dilutive: September 30, 2025 September 30, 2024 Outstanding restricted stock units 91,484 16,839 Outstanding stock options 17,697 9,322 Outstanding warrants 5,956,010 2,728,160 Common shares convertible from preferred stock 1,374,328 896,661 Total 7,439,519 3,650,982 Adoption of New Accounting Pronouncements In November 2023, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2023-09, Income Taxes (Topic 740) – Improvements to Income Tax Disclosures , which requires additional tax disclosures about a reporting entity’s effective tax rate reconciliation as well as information on income taxes paid. This guidance is effective on a prospective basis, with the option to apply it retrospectively, for fiscal years beginning after December 15, 2025. The adoption of ASU 2023-09 will expand the Company’s income tax disclosures in its Annual Report on Form 10-K, but will have no impact on reported income tax (benefit) expense or related tax assets or liabilities. 7 Recent Accounting Pronouncements Not Yet Adopted In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses , which requires additional disclosure of specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027. The requirements will be applied prospectively with the option for retrospective application. Early adoption is permitted. We are currently evaluating the impact of adopting this new accounting guidance. In July 2025, the FASB issued ASU 2025-05, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets , which provides a practical expedient to measure credit losses on current accounts receivable and contract assets. The practical expedient allows companies to assume that current conditions as of the balance sheet date do not change for the remaining life of the asset. For public companies, ASU 2025-05 is effective for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. The Company is currently evaluating the impact of adopting this guidance on its condensed financial statements. 3. Acquisition On August 1, 2025 (the “SI Closing Date”), the Company entered into an asset purchase agreement (the “SI APA”) with SiVantage, Inc., a Delaware corporation (“SI”), pursuant to which the Company acquired substantially all of the assets of SI, 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”). The SImmetry Acquisition closed on the SI Closing Date. On the SI Closing Date, SI received, as consideration for the SImmetry Acquisition, the purchase price consisting of: (i) $ 750 ,000 in cash; (ii) 710,300 shares of the Company’s common stock, of which 473,533 are to be held by the Company for a period of one-year as security to satisfy any indemnification claims against SI in accordance with the SI APA; (iii) a royalty equal to 15 % of the sales of all SI Products during the one-year period following the SI Closing Date and 10 % of the sales of all SI Products during the following four-year period, subject to a cap of $ 5.0 million; and (iv) a deferred cash payment of up to a maximum of approximately $ 1.3 million in the event that the all of the currently issued and outstanding warrants of the Company are exercised (which deferred cash payment will be made pro rata based on the actual number of warrants exercised). In addition, during the three-year period following the SI Closing Date, the Company will issue SI additional shares of its common stock upon the achievement of the following milestones: ● upon the Company having $ 1 million in aggregate sales of the SI Products after the SI Closing Date, the Company will issue SI an additional 276,228 shares of its common stock; ● upon the Company achieving $ 10 million in aggregate sales of the SI Products after the SI Closing Date, the Company will issue SI an additional 276,228 shares of its common stock; and ● upon the Company achieving $ 20 million in aggregate sales of the SI Products after the SI Closing Date, the Company will issue SI an additional 314,900 shares of its common stock. On August 1, 2025, the Company also entered into an asset purchase agreement (the “ SIMPL APA”) with SIMPL Medical, LLC, a Delaware limited liability (“SIMPL”), pursuant to which the Company acquired substantially all of the assets of SIMPL, including the assignment of its intellectual property related to posterior sacroiliac implant technology (the “SIMPL Products”), and assumed certain of its contract obligations, as set forth in the SIMPL APA (the “SIMPL Acquisition”). The SIMPL Acquisition closed on August 4, 2025. The aggregate purchase price for the SIMPL Acquisition payable by the Company is a royalty equal to 30 % of the net revenue received by the Company from the sale of any SIMPL Products during the five-year period following the first commercial sale of any SIMPL Products; provided that in the event that the aggregate royalty payments made by the Company to SIMPL exceed $ 20.0 million, then from and after such time, the Company shall pay SIMPL 20% of the net revenue received by the Company from the sale of any SIMPL Products during the remainder of such five-year period. The royalty payments noted above shall be paid quarterly by the Company. The Company has the option, subject to certain limitations, to pay up to 33.3 % of any quarterly royalty by the issuance of its shares of common stock, based upon the trailing 10-day VWAP at the end of any applicable quarter. 8 SI and SIMPL are under common control and the acquisitions were conditional upon one another; therefore, the Company determined that they are considered related businesses and the acquisition of the SI and SIMPL assets was treated as a single business acquisition (the “SI Acquisition”) in accordance with ASC 805, Business Combinations . The Company further determined that the SI Acquisition does not constitute an asset acquisition under accounting pronouncements, and instead constitutes a business combination. Thus, the acquisition method was applied to the acquisition. The Company further determined that the acquisitions met the definition of a business. Purchase Consideration The total purchase consideration was $ 3,127 and consisted of the following: Component Amount Cash paid at closing $ 750 Fair value of common stock issued 1,366 Fair value of contingent consideration 1,011 Total consideration $ 3,127 Identifiable Assets Acquired and Liabilities Assumed Description Fair Value Prepaid expenses $ 19 Inventory 61 Property and equipment 131 Intangible assets: Developed technology 103 Trademarks/trade names 196 Customer relationships 210 Total identifiable assets 720 Goodwill 2,407 Total consideration $ 3,127 Goodwill arising from the SI Acquisition is primarily attributable to the assembled workforce, expected synergies, and expansion into new markets. The allocation of the purchase price to the assets acquired and liabilities assumed is provisional and based on information available as of the acquisition date. The Company is in the process of completing its detailed valuation of certain tangible and intangible assets and liabilities. In addition, given the significant variables involved, the Company is still evaluating the methodologies and key assumptions in determining the acquisition purchase price. Accordingly, the amounts recognized are subject to change upon completion of the valuation work and subsequent management analysis, which is expected to be finalized within one year of the acquisition date in accordance with ASC 805. Intangible Assets Acquired Asset Estimated Useful Life in Years Fair Value Developed technology 7 - 8 $ 103 Trademarks/trade names 10 196 Customer relationships 8 210 Total $ 509 Acquisition-Related Costs The Company incurred approximately $ 779 of acquisition-related costs, including legal, accounting, and valuation fees. These costs are included in general and administrative expenses in the condensed statements of operations and comprehensive loss. 9 Pro Forma Financial Information The following unaudited pro forma information presents the combined results of operations as if the acquisition had occurred on January 1, 2024. The pro forma results include adjustments for amortization of acquired intangible assets. These pro forma results are presented for informational purposes only and do not purport to represent the actual results that would have occurred if the acquisition had been completed on the date indicated, nor are they necessarily indicative of future operating results. Three Months Ended September 30, Nine Months Ended September 30, 2025 2024 2025 2024 Revenue $ 1,273 $ 1,103 $ 3,336 $ 3,001 Net loss $ ( 3,532 ) $ ( 3,631 ) $ ( 10,939 ) $ ( 11,902 ) Basic and diluted net loss per share of common stock $ ( 0.42 ) $ ( 2.29 ) $ ( 1.55 ) $ ( 9.31 ) 4. Property and Equipment, net Property and equipment, net, consisted of the following: September 30, 2025 December 31, 2024 Instrument tray sets $ 890 $ 785 Construction in progress 440 541 Lab equipment 79 14 IT equipment 56 56 Leasehold improvements 15 15 Office furniture 9 9 Property and equipment, gross 1,489 1,420 Less: accumulated depreciation ( 826 ) ( 668 ) Property and equipment, net $ 663 $ 752 Construction in progress is made up of reusable components that will become instrument tray sets. Depreciation expense was approximately $ 68 and $ 105 for the three months ended September 30, 2025 and 2024, respectively. Depreciation expense was approximately $ 158 and $ 278 for the nine months ended September 30, 2025 and 2024, respectively. 5. Intangible Assets, net Intangible assets, net relate to developed technology, trademarks/trade names and customer relationships acquired in the SI Acquisition (Note 3). Intangible assets were valued based on their estimated fair value on the date of acquisition and are being amortized on a straight-line basis over estimated useful lives of 7 - 8 years for developed technology, 10 years for trademarks/trade names and 8 years for customer relationships. Intangible assets as of September 30, 2025 consist of the following: Gross Value Accumulated Amortization Net Value Developed technology $ 103 $ ( 2 ) $ 101 Trademarks/trade names 196 ( 3 ) 193 Customer relationships 210 ( 4 ) 206 Total $ 509 $ ( 9 ) $ 500 Amortization expense for both the three and nine months ended September 30, 2025 was $ 9 . As of September 30, 2025, there was no impairment of the intangible assets. 10 As of September 30, 2025, future amortization of amortizable intangible assets is as follows: As of September 30, 2025 2025 $ 15 2026 59 2027 59 2028 59 2029 59 Thereafter 249 $ 500 6. Accrued Expenses Accrued expenses consisted of the following: September 30, 2025 December 31, 2024 Accrued compensation $ 682 $ 416 Accrued professional services fees 317 271 Other accrued expenses 515 223 Total accrued expenses $ 1,514 $ 910 7. Leases In June 2021, the Company entered into a facility lease agreement for its headquarters in Los Gatos, California. This non-cancellable operating lease expires in June 2026 . Operating lease costs for the facility lease were $ 73 and $ 73 for the three months ended September 30, 2025 and 2024, respectively, and were $ 216 and $ 219 for the nine months ended September 30, 2025 and 2024, respectively. Supplemental balance sheet information related to leases was as follows: September 30, December 31, 2025 2024 Operating lease right-of-use assets $ 200 $ 399 Operating lease liability, current $ ( 216 ) $ ( 287 ) Operating lease liability, noncurrent — ( 141 ) Total operating lease liabilities $ ( 216 ) $ ( 428 ) Future maturities of operating lease liabilities as of September 30, 2025 were as follows: 2025 $ 79 2026 144 Total lease payments 223 Less: imputed interest ( 7 ) Present value of operating lease liabilities $ 216 Other information: Cash paid for operating leases for the nine months ended September 30, 2025 $ 232 Cash paid for operating leases for the nine months ended September 30, 2024 $ 225 Remaining lease term - operating leases (in years) 0.75 Average discount rate - operating leases 8.0 % 11 8. Stockholders’ Equity The Company’s current Amended and Restated Certificate of Incorporation dated February 18, 2014 authorizes the issuance of 130,000,000 shares of common stock and 20,000,000 shares of preferred stock, both with a par value of $ 0.001 per share. With respect to the preferred stock, 4,500,000 shares are designated Series A Preferred Stock and 491,222 shares are designated Series B Preferred Stock. At-the-Market Offering Program On May 4, 2023, the Company entered into an Equity Distribution Agreement to establish an at-the-market offering program, under which the Company may sell from time to time, at its option, shares of its common stock having an aggregate gross sales price of $ 5.5 million. The Company is required to pay the Sales Agents a commission of 3 % of the gross proceeds from the sale of shares and has also agreed to provide the Sales Agents with customary indemnification rights. No shares were sold under the program during the three months ended September 30, 2025 and 2024. During the nine months ended September 30, 2025 and 2024, 0 and 129,199 shares of the Company’s common stock, respectively, were sold under the program at a weighted-average price of $ 0 and $ 14.63 per share with aggregate proceeds, net of current and deferred issuance costs, of $ 0 and $ 1,834 , respectively. Per the terms of the Equity Distribution Agreement, no shares are available to be issued under the program as of September, 30, 2025. Equity Line of Credit On July 24, 2023, the Company entered into a purchase agreement (“Purchase Agreement”) with Lincoln Park Capital Fund, LLC (“Lincoln Park”), under which, subject to specified terms and conditions, the Company may sell to Lincoln Park up to $ 10 million of shares of common stock from time to time during the term of the Purchase Agreement. On September 22, 2023 (the “Commencement Date”) and on May 10, 2024, the Company filed registration statements with the SEC covering the resale of shares of common stock issued to Lincoln Park under the Purchase Agreement. Beginning on the Commencement Date and for a period of 24 months thereafter, under the terms and subject to the conditions of the Purchase Agreement, from time to time, at the Company’s discretion, the Company has the right, but not the obligation, to sell to Lincoln Park, and Lincoln Park is obligated to purchase, up to $ 10 million of shares of common stock, subject to certain limitations set forth in the Purchase Agreement. Specifically, from time to time from and after the Commencement Date, the Company may, at its discretion, direct Lincoln Park to purchase on any single business day on which the closing price of its common stock on The Nasdaq Capital Market (“Nasdaq”) is equal to or greater than $ 1.50 up to 10,000 shares of common stock (a “Regular Purchase”); provided, that the Company may direct Lincoln Park to purchase in a Regular Purchase (i) up to 12,500 shares of common stock, if the closing sale price of its common stock on Nasdaq on such business day is at least $15.00 per share and (ii) up to 15,000 shares of common stock, if the closing sale price of its common stock on Nasdaq on such business day is at least $25.00 per share . In no case, however, will Lincoln Park’s commitment with respect to any single Regular Purchase exceed $ 500,000 ; provided, that the parties may mutually agree at any time to increase the maximum number of shares of common stock the Company may direct Lincoln Park to purchase in any single Regular Purchase to up to 100,000 shares or any number of shares that shall not exceed 4.99 % of the then outstanding shares of common stock. The foregoing share amounts and per share prices will be adjusted for any reorganization, recapitalization, non-cash dividend, stock split, reverse stock split or other similar transaction occurring after the date of the Purchase Agreement with respect to our common stock. The purchase price per share for each such Regular Purchase will be based on prevailing market prices of the Company’s common stock immediately preceding the time of sale, as determined under the Purchase Agreement. During the three months ended September 30, 2025 and 2024, 0 and 37,618 shares of the Company’s common stock were sold under the program, respectively, at a weighted average price of $ 0 and $ 4.56 , respectively, with aggregate net proceeds of $ 164 . During the nine months ended September 30, 2025 and 2024, 0 and 48,849 shares of the Company’s common stock were sold under the program, respectively, at a weighted-average price of $ 0 and $ 5.56 per share, respectively, with aggregate net proceeds of $ 260 . The Purchase Agreement terminated in September 2025. 12 2025 Warrant Inducement On March 11, 2025, the Company entered into a warrant exercise inducement offer letter agreement (the “Inducement Letter”) with the holder of the Series A New Warrants and Series B New Warrants (the “Existing Warrants”), pursuant to which, the holder agreed to exercise the Existing Warrants at a reduced exercise price of $ 1.25 per share in consideration for the Company’s agreement to issue (i) new unregistered five-year warrants (the “Series C-1 Warrants”) to purchase up to an aggregate of 2,445,700 shares of common stock at an exercise price of $ 1.25 per share and (ii) new unregistered three-year warrants (the “Series C-2 Warrants,” and together with the Series C-1 Warrants, the “New Warrants”) to purchase up to an aggregate of 1,222,850 shares of common stock at an exercise price of $ 1.25 per share (the “Inducement Transaction”). The New Warrants are not exercisable without approval by the Company’s stockholders (“Stockholder Approval”), which, pursuant to the Inducement Letter, the Company is required to obtain at a meeting of stockholders no later than 165 days after the consummation of the Inducement Transaction. The Series C-1 Warrants will be exercisable five years from the date on which Stockholder Approval is obtained, and the Series C-2 Warrants will be exercisable three years from the date on which Stockholder Approval is obtained. Pursuant to the Inducement Transaction, the Company received proceeds, net of financial advisor fees and other transaction expenses, of $ 2,735 . The Company filed a registration statement on Form S-1 on April 4, 2025 providing for the resale of the shares of common stock issuable upon the exercise of the New Warrants. The Company has agreed not to issue, enter into any agreement to issue or announce the issuance or proposed issuance of any common stock or common stock equivalents or file any registration statement or any amendment or supplement to any existing registration statement, subject to certain exceptions, for a period of 60 calendar days after the effectiveness of the Resale Registration Statement. Furthermore, the Company is also prohibited from entering into any agreement to issue common stock or common stock equivalents involving a variable rate transaction (as defined in the Inducement Letter), subject to certain exceptions, for a six-month period commencing on March 12, 2025. 2025 Securities Purchase Agreements On March 25, 2025, the Company entered into a securities purchase agreement for the issuance of 733,500 shares of its common stock (or common stock equivalents in lieu thereof) in a registered direct offering at a purchase price of $ 2.00 per share. In a concurrent private placement, the Company also agreed to issue to the same investor warrants to purchase up to 733,500 shares of its common stock at an exercise price of $ 2.00 per share, which will be exercisable immediately, and will expire five years following the date of issuance. Pursuant to the agreements, the Company received proceeds, net of financial advisor fees and other transaction expenses, of $ 1,234 . Also on March 25, 2025, the Company entered into a securities purchase agreement for the issuance of 1,271,500 shares of its common stock (or common stock equivalents in lieu thereof) in a registered direct offering at a purchase price of $ 2.00 per share. In a concurrent private placement, the Company also agreed to issue to the same investor warrants to purchase up to 1,271,500 shares of its common stock at an exercise price of $ 2.00 per share, which will be exercisable immediately, and will expire five years following the date of issuance. Pursuant to the agreements, the Company received proceeds, net of financial advisor fees and other transaction expenses, of $ 2,290 . Equity Awards In 2012, the Board of Directors of the Company (the “Board”) approved the Tenon Medical, Inc. 2012 Equity Incentive Plan (the “2012 Plan”). The 2012 Plan provides for the issuance of common stock options, appreciation rights, and other awards to employees, directors, and consultants. Options issued under the 2012 Plan generally vest over a period of two to four years and have a 10-year expiration date. In April 2021, the Board increased the number of shares of common stock reserved for issuance under the 2012 Plan to 662,516 . In July 2021, the Board increased the number of shares of common stock reserved for issuance under the 2012 Plan to 737,516 . In August 2021, the Board increased the number of shares of common stock reserved for issuance under the 2012 Plan from 737,516 shares to 799,266 shares and approved the form of a 2022 Equity Incentive Plan. On January 10, 2022 and February 2, 2022, the Board and stockholders, respectively, of the Company approved the Tenon Medical, Inc. 2022 Equity Incentive Plan (the “2022 Plan”), which was effective on April 25, 2022. The number of shares of common stock that may be subject to awards and sold under the 2022 Plan is equal to 1,600,000 . Automatic annual increases in number of shares available for issuance under the 2022 Plan is equal to the least of (a) 1,100,000 shares, (b) 4 % of the total number of shares of all classes of common stock outstanding on the last day of the immediately preceding fiscal year, or (c) such number determined by the 2022 Plan administrator no later than the last day of the immediately preceding fiscal year. Annual increases will continue until the tenth anniversary of the earlier of the Board or stockholder approval of the 2022 Plan, which is January 10, 2032. Upon the effective date of the 2022 Plan, the Board terminated the 2012 Plan such that no new equity awards will be issued by the 2012 Plan. 13 A summary of the Company’s stock option and restricted stock unit activity under its plans is as follows: Number of Shares Subject to Outstanding Stock Options Weighted Average Exercise Price per Share Number of Outstanding Restricted Stock Units Weighted Average Grant Date Fair Value per Unit Outstanding at December 31, 2024 11,322 $ 20.79 20,224 $ 99.58 Granted 9,000 $ 1.22 77,150 $ 1.85 Released — — ( 5,699 ) $ 295.70 Forfeited ( 2,625 ) $ 5.36 ( 191 ) $ 708.80 Outstanding at September 30, 2025 17,697 $ 13.12 91,484 $ 3.67 The following table sets forth stock-based compensation expense recognized for the three and nine months ended September 30, 2025 and 2024: Three months ended September 30, Nine months ended September 30, 2025 2024 2025 2024 Research and development $ 16 $ 355 $ 573 $ 1,080 Sales and marketing 26 31 90 108 General, and administrative 16 524 684 1,774 Total stock-based compensation expense $ 58 $ 910 $ 1,347 $ 2,962 At September 30, 2025, there were 75,386 shares available for issuance under the 2022 Plan. Warrants Series C Warrants On March 11, 2025, in connection with 2025 Warrant Inducement, the Company issued new unregistered five-year warrants (the “Series C-1 Warrants”) to purchase up to an aggregate of 2,445,700 shares of common stock at an exercise price of $ 1.25 per share and new unregistered three-year warrants (the “Series C-2 Warrants,” and together with the Series C-1 Warrants, the “Series C Warrants”) to purchase up to an aggregate of 1,222,850 shares of common stock at an exercise price of $ 1.25 per share. The Series C Warrants are not exercisable without approval by the Company’s stockholders (“Stockholder Approval”), which the Company is required to obtain at a meeting of stockholders no later than 165 days after the consummation of the Inducement Transaction. The Series C-1 Warrants will be exercisable five years from the date on which Stockholder Approval is obtained, and the Series C-2 Warrants will be exercisable three years from the date on which Stockholder Approval is obtained. Pursuant to the Inducement Transaction, the Company received proceeds, net of financial advisor fees and other transaction expenses, of $ 2,735 . The fair value of the Series C-1 Warrants on the grant date was $ 0.97 per warrant, which was calculated using a Black-Scholes option valuation model with an expected term of 5.00 years, expected volatility of 68.40 %, dividend yield of 0 %, and risk-free interest rate of 4.0 %. The fair value of the Series C-2 Warrants on the grant date was $ 0.80 per warrant, which was calculated using a Black-Scholes option valuation model with an expected term of 3.00 years, expected volatility of 68.40 %, dividend yield of 0 %, and risk-free interest rate of 4.0 %. The Company recorded the fair value of these warrants to additional paid-in capital in the first quarter of 2025. The Company recorded the excess of the incremental value of the modified Series A New Warrants and Series B New Warrants and the fair value of the Series C Warrants over the cash proceeds from the exercise of the modified Series A New Warrants and Series B New Warrants as equity offering costs. All of the Series C Warrants remain outstanding as of September 30, 2025. Series D Warrants On March 25, 2025, in connection with a securities purchase agreement, the Company issued warrants to purchase up to 733,500 shares of its common stock at an exercise price of $ 2.00 per share (the “Series D Warrants”), which were exercisable upon issuance, and will expire five years following the date of issuance. The fair value of the Series D Warrants on the grant date was $ 2.72 per warrant, which was calculated using a Black-Scholes option valuation model with an expected term of 5.00 years, expected volatility of 68.40 %, dividend yield of 0 %, and risk-free interest rate of 4.1 %. The Company recorded the fair value of these warrants to additional paid-in capital in the first quarter of 2025. All of the Series D Warrants remain outstanding as of September 30, 2025. 14 Series E Warrants Also on March 25, 2025, in connection with a securities purchase agreement, the Company issued warrants to purchase up to 1,271,500 shares of its common stock at an exercise price of $ 2.00 per share (the “Series E Warrants”), which were exercisable upon issuance, and will expire five years following the date of issuance. The fair value of the Series E Warrants on the grant date was $ 2.72 per warrant, which was calculated using a Black-Scholes option valuation model with an expected term of 5.00 years, expected volatility of 68.40 %, dividend yield of 0 %, and risk-free interest rate of 4.1 %. The Company recorded the fair value of these warrants to additional paid-in capital in the first quarter of 2025. All of the Series E Warrants remain outstanding as of September 30, 2025. 9. Commitments and Contingencies Sales Representative Agreement In April 2020, the Company entered into an Exclusive Sales Representative Agreement, under which the counterparty to the agreement (the “Representative”) received exclusive rights to market, promote, and distribute The Catamaran System in the United States and Puerto Rico. The agreement is for an initial period of five years , and automatically renews for an additional five years unless written notice is given by either party prior to April 27, 2023. The agreement provides for a bonus to be paid to the Representative upon an acquisition or IPO. In May 2021, the Company entered into an Amended and Restated Exclusive Sales Representative Agreement (the “Restated Sales Agreement”). In connection with the amended agreement, the Company paid $ 500 cash and issued 53,757 shares of common stock to the Representative, for which the Company recorded a combined total of approximately $ 880 as sales and marketing expense. In addition, the Representative received anti-dilution protections to maintain ownership of 3.0 % of the fully diluted equity of the Company through the date of an initial public offering. In October 2021, the Company issued 4,445 shares of common stock with a fair value of approximately $ 333 to the Representative in accordance with the anti-dilution provision. In April 2022, the Company issued 31,235 shares of common stock to the Representative in accordance with the anti-dilution provision, fully satisfying the Company’s obligations. The Restated Sales Agreement restructured the calculation of the bonus paid to the Representative upon an acquisition, removed the bonus payable upon an IPO, and allows the Company to terminate the Restated Sales Agreement as long as the bonus paid to the Representative is at least $ 6,000 . On October 6, 2022, the Company entered into the Terminating Amended and Restated Exclusive Sales Representative Agreement (the “Termination Agreement”) with the Representative, which terminated the Restated Sales Agreement. In accordance with the Termination Agreement, (i) the Company paid the Representative $1,000 in cash; and (ii) the Company agreed to pay the Representative (a) $85 per month during the six months after the date of the Termination Agreement in return for efforts by the Representative to transition operations to the Company, (b) 20% of net sales of the product sold in the United States and Puerto Rico until December 31, 2023 and (c) after December 31, 2023, 10% of net sales until such time as the aggregate amount paid to the Representative under this clause (c) and clause (b) above equal $3,600. In the event of an acquisition of the Company, the Company will pay the Representative $3,600 less previous amounts paid pursuant to clause (b) and clause (c) above. The Company recorded a charge of $1,000 for the payment to the Representative in the fourth quarter of 2022 and expensed the $85 per month charges as incurred over the six-month period. For payments under clause (b) and clause (c) above, the Company originally estimated the fair value of the liability using level 3 hierarchy inputs based on a Monte Carlo simulation of future revenues with a 25% quarterly estimated standard deviation of growth rates and a 10% probability of dissolution, discounted at an estimated discount rate of 15.4%. Based on the Company’s fair value analysis, a total of $2,611 was charged to sales and marketing expense in the statements of operations and comprehensive loss and recorded as accrued commissions in the balance sheets. For subsequent periods, the Company has used a discounted cash flow model with an estimated discount rate of 15.4% to adjust the liability for actual payments made and updated projections of the timing of future payments. A reconciliation of the liability under clause (b) and clause (c) for the nine months ended September 30, 2025 is as follows: Balance at January 1, 2025 $ 2,101 Amounts paid during 2025 ( 226 ) Accretion 118 Balance at September 30, 2025 $ 1,993 15 Per the terms of the Termination Agreement, the Company ultimately expects to expense $ 3,600 under clause (b) and clause (c). Credit risk Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents. The Company maintains cash balances at financial institutions located in California. Accounts at the U.S. financial institutions are secured by the Federal Deposit Insurance Corporation. At times, balances may exceed federally insured limits. The Company has not experienced any losses in such accounts. Management believes that the Company is not exposed to any significant credit risk with respect to its cash and cash equivalents. The Company grants unsecured credit to its customers based on an evaluation of the customer’s financial condition and a cash deposit is generally not required. Management believes its credit policies do not result in significant adverse risk and historically has not experienced significant credit-related losses. 10. Reportable Segment The Company operates in one reportable business segment: the SI Joint segment. The SI Joint segment derives revenue from the sale of the Catamaran System and the SImmetry SI Joint Fusion System for treatment of the most common types of SI Joint disorders that cause lower back pain. The chief operating decision maker, which is the Company’s senior executive committee that includes the chief executive officer, the chief financial officer and the chief technology officer, assesses the performance of the SI Joint segment and decides how to allocate resources based on net income which is reported in the consolidated statements of operations and comprehensive loss as net loss. The measure of segment assets is reported on the balance sheet as total assets. The chief operating decision maker uses net loss to evaluate income generated from segment assets in deciding whether to continue investing in the segment. Net loss is used to monitor budget versus actual results, to prepare operating budgets, and to assess the performance of the segment and in establishing management compensation. The Company does not have intra-entity sales or transfers. The following table presents selected financial information for the Company’s single business segment for the three and nine months ended September 30, 2025 and 2024: Three Months Ended September 30, Nine Months Ended September 30, 2025 2024 2025 2024 Revenue $ 1,173 $ 887 $ 2,463 $ 2,507 Less: Cost of sales 400 469 1,122 1,149 Research and development 428 657 1,622 2,034 Sales and marketing 1,538 1,212 4,304 4,041 General and administrative 2,199 1,764 5,341 5,876 Total Other (Income) Expense, net ( 53 ) ( 31 ) ( 202 ) ( 7 ) Net Loss $ ( 3,339 ) $ ( 3,184 ) $ ( 9,724 ) $ ( 10,586 ) 11. Subsequent Event On November 11, 2025, the Company announced the pricing of an at-the-market private investment in public equity (the “PIPE”) financing with several accredited investors for total gross proceeds of $ 2,850,000 . Under the terms of securities purchase agreements, dated November 10, 2025 between the Company and the applicable investors, the Company will issue an aggregate of 2,217,904 shares of common stock (the “Issued Shares”) and warrants (the “PIPE Warrants”) to purchase 2,217,904 shares of common stock at a combined offering price of $ 1.285 per share of common stock and warrant to purchase one share of common stock. The PIPE Warrants have a strike price of $ 1.16 per share, with an expiration date of 3 years from the date of issuance. The Issued Shares and the shares underlying PIPE Warrants will be entitled to customary resale registration rights. The closing of the PIPE is subject to customary closing conditions for financing of this nature. The PIPE is expected to close on November 14, 2025. 16 ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS You should read the following discussion and analysis of our financial condition and results of operations together with our unaudited condensed financial statements and the notes to those statements included elsewhere in this Quarterly Report on Form 10-Q and the audited consolidated financial statements and the other information set forth in our Annual Report of Form 10-K for the year ended December 31, 2024, filed with the Securities and Exchange Commission on March 26, 2025. In addition to historical financial information, this discussion and analysis contains forward-looking statements that reflect our plans, estimates and beliefs. You should not place undue reliance on these forward-looking statements, which involve risks and uncertainties. As a result of many factors, including but not limited to those set forth under “Risk Factors” in our Annual Report of Form 10-K filed with the Securities and Exchange Commission on March 26, 2025, our actual results may differ materially from those anticipated in these forward-looking statements. See “Cautionary Statement Regarding Forward-Looking Statements.” Overview Tenon Medical, Inc., a medical device company formed in 2012, has developed a proprietary, U.S. Food and Drug Administration (“FDA”) approved surgical implant-system, which we call The Catamaran™ SI Joint Fusion System (“The Catamaran System”). The Catamaran System offers a novel, less invasive inferior-posterior approach to the sacroiliac joint (“SI Joint”) using a single, robust titanium implant to treat SI Joint dysfunction that often causes severe lower back pain. The system features the Catamaran™ Fixation Device which passes through both the axial and sagittal planes of the ilium and sacrum, transfixing the SI Joint along its longitudinal axis. In August 2025, the Company purchased substantially all of the assets of SiVantage, Inc., including the SImmetry SI Joint Fusion System that treats disorders of the SI Joint using a single, robust, titanium implant. We have incurred net losses since our inception in 2012. As of September 30, 2025, we had an accumulated deficit of approximately $78.5 million. To date, we have financed our operations primarily through public equity offerings, private placements of equity securities, certain debt-related financing arrangements, and sales of our product. We have devoted substantially all of our resources to research and development, regulatory matters and sales and marketing of our product. Reverse Stock Split On September 6, 2024, we effected a 1-for-8 reverse stock split (the “2024 Reverse Stock Split”) by filing an amendment to our Amended and Restated Certificate of Incorporation, as amended, with the Delaware Secretary of State. The 2024 Reverse Stock Split combined every eight shares of our common stock issued and outstanding immediately prior to effecting the 2024 Reverse Stock Split into one share of common stock. No fractional shares were issued in connection with the 2024 Reverse Stock Split. All historical share and per share amounts reflected throughout this document have been adjusted to reflect the 2024 Reverse Stock Split. The authorized number of shares and the par value per share of our common stock were not affected by the 2024 Reverse Stock Split. Components of Results of Operations Revenue We derive substantially all our revenue from sales of The Catamaran System and, since August 2025, the SImmetry SI Joint Fusion System. Revenue from sales of The Catamaran System and the SImmetry SI Joint Fusion System fluctuates based on volume of cases (procedures performed), discounts, rebates, and the number of implants used for a particular patient. Similar to other orthopedic companies, our revenue can also fluctuate from quarter to quarter due to a variety of factors, including reimbursement, changes in independent sales representatives and physician activities. Cost of Goods Sold, Gross Profit, and Gross Margin We utilize contract manufacturers for production of The Catamaran System implants, SImmetry implants and the instrument tray sets. Cost of goods sold consists primarily of costs of the components of the implants and instruments, depreciation of instrument tray sets, overhead related to operations personnel and facility costs, quality inspection, packaging, scrap and inventory obsolescence, as well as distribution-related expenses such as logistics and shipping costs. We anticipate that certain of our cost of goods sold will increase in absolute dollars as case levels increase. Our gross margins have been and will continue to be affected by a variety of factors, including the cost to have our product manufactured for us, pricing pressure from increasing competition, decisions with regard to the level of overhead we choose to maintain, sales volumes to absorb fixed production costs, and the factors described above impacting our revenue. 17 Operating Expenses Our operating expenses consist of sales and marketing, research and development, and general and administrative expenses. Personnel costs are the most significant component of operating expenses and consist of consulting expenses, salaries, sales commissions and other cash and stock-based compensation related expenses. We expect operating expenses to increase in absolute dollars as we continue to invest and grow our business. Sales and Marketing Expenses Sales and marketing expenses primarily consist of salaries, commissions, stock-based compensation expense and travel and entertainment expenses of our sales and market personnel along with commissions paid to our independent distributors. We expect our sales and marketing expenses to increase in absolute dollars with the increased sales resulting in higher commissions and salaries, increased clinician and sales representative training, and the cost to complete our clinical study to gain wider clinician adoption of our products. Our sales and marketing expenses may fluctuate from period to period due to the timing of sales and marketing activities related to the commercial activity of our product. Research and Development Expenses Our research and development expenses primarily consist of engineering, product development, regulatory expenses, and consulting services, outside prototyping services, outside research activities, materials, and other costs associated with the development and refinement of our product. Research and development expenses also include related personnel and consultants’ compensation and stock-based compensation expense. We expense research and development costs as they are incurred. We expect research and development expense to increase in absolute dollars as we improve our existing products, develop new products, add research and development personnel, and undergo clinical activities that may be required for regulatory clearances of future products. General and Administrative Expenses General and administrative expenses primarily consist of salaries, consultants’ compensation, stock-based compensation expense, and other costs for finance, accounting, legal, compliance, and administrative matters. We expect our general and administrative expenses to increase in absolute dollars as we add personnel and information technology infrastructure to support the growth of our business. We also expect to continue to incur expenses as a result of operating as a public company, including but not limited to: expenses related to compliance with the rules and regulations of the SEC and those of The Nasdaq Stock Market LLC on which our securities are traded; additional insurance expenses; investor relations activities; and other administrative and professional services. We also may incur acquisition-related expenses at the discretion of management and the Board of Directors. While we expect the general and administrative expenses to increase in absolute dollars, we anticipate that it will decrease as a percentage of revenue over time. Gain on Investments, Interest Expense and Other Income (Expense), Net Gain on investments consists of interest income and realized gains and losses from the sale of our investments in money market and corporate debt securities. Interest expense is related to borrowings, when applicable. Other income and expenses have not been significant to date. 18 Results of Operations The following table sets forth our results of operations for the periods presented (in thousands): Three Months Ended September 30, Nine Months Ended September 30, Statements of Operations Data: 2025 2024 2025 2024 Revenue $ 1,173 $ 887 $ 2,463 $ 2,507 Cost of goods sold 400 469 1,122 1,149 Gross profit 773 418 1,341 1,358 Operating expenses: Research and development 428 657 1,622 2,034 Sales and marketing 1,538 1,212 4,304 4,041 General and administrative 2,199 1,764 5,341 5,876 Total operating expenses 4,165 3,633 11,267 11,951 Loss from operations (3,392 ) (3,215 ) (9,926 ) (10,593 ) Interest and other income (expense), net: Gain on investments 53 31 202 97 Interest expense — — — (34 ) Other expense, net — — — (56 ) Net loss $ (3,339 ) $ (3,184 ) $ (9,724 ) $ (10,586 ) The following table sets forth our results of operations as a percentage of revenue: Three Months Ended September 30, Nine Months Ended September 30, Statements of Operations Data: 2025 2024 2025 2024 Revenue 100 % 100 % 100 % 100 % Cost of goods sold 34 53 46 46 Gross profit 66 47 54 54 Operating expenses: Research and development 36 74 66 81 Sales and marketing 131 137 175 161 General and administrative 187 199 217 234 Total operating expenses 355 410 457 477 Loss from operations (289 ) (362 ) (403 ) (423 ) Interest and other income (expense), net: Gain on investments 5 3 8 4 Interest expense — — — (1 ) Other expense — — — (2 ) Net loss (285 )% (359 )% (395 )% (422 )% 19 Comparison of the Three and Nine Months Ended September 30, 2025 and 2024 (in thousands, except percentages) Revenue, Cost of Goods Sold, Gross Profit, and Gross Margin Three Months Ended September 30, 2025 2024 $ Change % Change Revenue $ 1,173 $ 887 $ 286 32 % Cost of goods sold 400 469 (69 ) (15 )% Gross profit $ 773 $ 418 $ 355 (85 )% Gross profit percentage 66 % 47 % Nine Months Ended September 30, 2025 2024 $ Change % Change Revenue $ 2,463 $ 2,507 $ (44 ) (2 )% Cost of goods sold 1,122 1,149 (27 ) (2 )% Gross profit $ 1,341 $ 1,358 $ (17 ) (1 )% Gross profit percentage 54 % 54 % Revenue. The changes in revenue for the three and nine months ended September 30, 2025 as compared to the same periods in 2024 was primarily due to changes in the number of surgical procedures in which The Catamaran System was used and the addition of sales of the SImmetry SI Joint Fusion System, while implants per procedure remained relatively constant. Cost of Goods Sold, Gross Profit, and Gross Margin . The change in cost of goods sold for the three and nine months ended September 30, 2025 as compared to the same periods in 2024 was due to the absorption of production overhead costs into our standard cost in 2024 and operating leverage created due to lower relative fixed costs. The gross margin for the three months ended September 30, 2025 benefitted from increased sales volumes that reduced per unit fixed production costs. Operating Expenses Three Months Ended September 30, 2025 2024 $ Change % Change Research and development $ 428 $ 657 $ (229 ) (35 )% Sales and marketing 1,538 1,212 326 27 % General and administrative 2,199 1,764 435 25 % Total operating expenses $ 4,165 $ 3,633 $ 532 15 % Nine Months Ended September 30, 2025 2024 $ Change % Change Research and development $ 1,622 $ 2,034 $ (412 ) (20 )% Sales and marketing 4,304 4,041 263 7 % General and administrative 5,341 5,876 (535 ) (9 )% Total operating expenses $ 11,267 $ 11,951 $ (684 ) (6 )% Research and Development Expenses . Research and development expenses for the three months ended September 30, 2025 decreased as compared to 2024 primarily due to decreased stock-based compensation ($339) and payroll and employee expenses ($46), partially offset by increased professional fees ($106). Research and development expenses for the nine months ended September 30, 2025 decreased as compared to 2024 primarily due to decreased stock-based compensation ($507) and professional fees ($32), partially offset by increased payroll and employee expenses ($54). Sales and Marketing Expenses . Sales and marketing expenses for the three months ended September 30, 2025 increased as compared to the same period in 2024 primarily due to increased commission expenses ($410) and consulting and professional fees ($38), partially offset by decreases in payroll and employee expenses ($84), and stock-based compensation ($5). Sales and marketing expenses for the nine months ended September 30, 2025 increased as compared to the same period in 2024 primarily due to increased commission expenses ($262) and professional fees ($45), partially offset by decreases in payroll and employee expenses ($27) and stock-based compensation ($18). 20 General and Administrative Expenses . General and administrative expenses for the three months ended September 30, 2025 increased as compared to the same period in 2024 primarily due to acquisition expenses ($779) and increases in professional service fees ($190) and payroll and employee expenses ($135), partially offset by decreased stock-based compensation ($508) and insurance costs ($146). General and administrative expenses for the nine months ended September 30, 2025 decreased as compared to the same period in 2024 primarily due to decreased stock-based compensation ($1,090) and insurance costs ($471), partially offset by acquisition expenses ($779) and increases in employee expenses ($221) and professional service fees ($96). Gain on Investments, Interest Expense and Other Income (Expense), Net Gain on investments for the three and nine months ended September 30, 2025 increased as compared to the same periods in 2024 due to interest on our increased cash and cash equivalent balances. Interest expense for the nine months ended September 30, 2024 related to our convertible debt. Other income (expense), net in 2024 was related to foreign exchange losses on the liquidation of our Swiss subsidiary. Liquidity and Capital Resources As of September 30, 2025, we had cash and cash equivalents of $3.4 million. Since inception, we have financed our operations through private placements of preferred stock, debt financing arrangements, our initial public offering, additional stock offerings and the sale of our products. As of September 30, 2025, we had no outstanding debt. As of September 30, 2025, we had an accumulated deficit of $78.5 million, and we expect to incur additional losses in the future. We have not achieved positive cash flow from operations to date. Based upon our current operating plan, our existing cash and cash equivalents will not be sufficient to fund our operating expenses and working capital requirements through at least the next 12 months from the date these financial statements were filed. We plan to raise the necessary additional capital through one or a combination of public or private equity offerings, debt financings, and collaborations. We continue to face challenges and uncertainties and, as a result, our available capital resources may be consumed more rapidly than currently expected due to (a) the uncertainty of future revenues; (b) changes we may make to the business that affect ongoing operating expenses; (c) changes we may make in our business strategy; (d) regulatory developments affecting our existing products; (e) changes we may make in our research and development spending plans; and (f) other items affecting our forecasted level of expenditures and use of cash resources. On November 11, 2025, we announced the pricing of an at-the-market private investment in public equity (the “PIPE”) financing with several accredited investors for total gross proceeds of $2,850,000. Under the terms of securities purchase agreements, dated November 10, 2025 between us and the applicable investors, we will issue an aggregate of 2,217,904 shares of common stock (the “Issued Shares”) and warrants (the “PIPE Warrants”) to purchase 2,217,904 shares of common stock at a combined offering price of $1.285 per share of common stock and warrant to purchase one share of common stock. The PIPE Warrants have a strike price of $1.16 per share, with an expiration date of 3 years from the date of issuance. The Issued Shares and the shares underlying PIPE Warrants will be entitled to customary resale registration rights. The closing of the PIPE is subject to customary closing conditions for financing of this nature. The PIPE is expected to close on November 14, 2025. As we attempt to raise additional capital to fund our operations, funding may not be available to us on acceptable terms, or at all. If we are unable to obtain adequate financing when needed, we may have to delay, reduce the scope of or suspend one or more of our sales and marketing efforts, research and development activities, or other operations. We may seek to raise any necessary additional capital through a combination of public or private equity offerings, debt financings, and collaborations. If we do raise additional capital through public or private equity offerings, the ownership interest of our existing stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect our stockholders’ rights. If we raise additional capital through debt financing, we may be subject to covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, or declaring dividends. If we are unable to raise capital, we will need to delay, reduce, or terminate planned activities to reduce costs. Doing so will likely harm our ability to execute our business plans. Due to the uncertainty in our ability to raise capital, management believes that there is substantial doubt in our ability to continue as a going concern for the next twelve months from the issuance of these condensed financial statements. Cash Flows (in thousands, except percentages) The following table sets forth the primary sources and uses of cash for each of the periods presented below: Nine Months Ended September 30, 2025 2024 $ Change % Change Net cash (used in) provided by: Operating activities $ (8,521 ) $ (7,101 ) $ 1,361 (19 )% Investing activities (831 ) (223 ) (608 ) 273 % Financing activities 6,259 14,012 (7,812 ) (56 )% Effect of foreign currency translation on cash flow — 46 (46 ) (100 )% Net increase (decrease) in cash and cash equivalents $ (3,039 ) $ 6,734 $ (9,827 ) (385 )% 21 The decrease in net cash used in operating activities for the nine months ended September 30, 2025 as compared to the nine months ended September 30, 2024 was primarily attributable to our decreased net loss ($862), adjusted for decreases in non-cash stock-based compensation expenses ($1,615), in addition to increased inventory levels ($501) and decreased accounts payable ($394), partially offset by increases in accrued expenses ($498). Cash used in investing activities for the nine months ended September 30, 2025 consisted of the cash payment for the SI Acquisition ($750) and purchases of property and equipment ($81). Cash used in investing activities for the nine months ended September 30, 2024 consisted of purchases of property and equipment ($223). Cash provided by financing activities for the nine months ended September 30, 2025 consisted primarily of gross proceeds from the issuance of common stock from our securities purchase agreements ($4,010) and from the exercise of warrants under the inducement agreement ($3,057), net of total cash offering costs ($867). Cash provided by financing activities for the nine months ended September 30, 2024 consisted primarily of gross proceeds from the issuance of common stock and warrants ($4,500), the exercise of warrants under the inducement agreement ($4,647), the issuance of Series A Convertible Preferred Stock ($2,605) and Series B Convertible Preferred Stock ($550) and from issuances of common stock ($2,163), net of total cash offering costs ($1,265). Critical Accounting Policies, Significant Judgments, and Use of Estimates Our management’s discussion and analysis of our financial condition and results of operations is based on our financial statements, which have been prepared in accordance with U.S. GAAP. The preparation of these financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported results of operations during the reporting periods. Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from three other sources. Actual results could differ from these estimates under different assumptions or conditions. For the nine months ended September 30, 2025, the only significant change to our existing critical accounting policies from those disclosed in our Annual Report on Form 10-K was related to accounting for business combinations, as described below. Business Combinations We account for business combinations in accordance with Accounting Standards Codification 805, Business Combinations , which requires that assets acquired and liabilities assumed be recorded at their respective fair values on the date of acquisition. The fair value of the consideration paid is assigned to the underlying net assets of the acquired business based on their respective fair values. Any excess of the purchase price over the estimated fair values of the net assets acquired is recorded to goodwill. Intangible assets acquired are amortized over the expected life of the asset. Fair value determinations and useful life estimates are based on, among other factors, estimates of expected future cash flows, estimates of appropriate discount rates, estimated useful lives of the intangible assets acquired and other factors. Although we believe the assumptions and estimates we have made have been reasonable and appropriate, actual results may vary significantly from estimated results. Our assumptions and estimates are subject to refinement and, as a result, during the measurement period, which may be up to one year from the acquisition date, We record adjustments to the assets acquired and liabilities assumed with the corresponding offset to goodwill. Off-Balance Sheet Arrangements As of September 30, 2025, and December 31, 2024, we did not have any relationships with unconsolidated organizations or financial partnerships, such as structured finance or special purpose entities that would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. ITEM 3. Quantitative and Qualitative Disclosures about Market Risk Not required under Regulation S-K for “smaller reporting companies.” 22 ITEM 4. Controls and Procedures. Disclosure Controls and Procedures Evaluation of Disclosure Controls and Procedures We maintain disclosure controls and procedures that are designed to provide reasonable assurance that the information required to be disclosed by us in reports that we file or submit under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported within the time periods specified in the rules and forms promulgated by the Securities and Exchange Commission, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and President and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. Because of the inherent limitations to the effectiveness of any system of disclosure controls and procedures, no evaluation of disclosure controls and procedures can provide absolute assurance that all control issues and instances of fraud, if any, with a company have been prevented or detected on a timely basis. Even disclosure controls and procedures determined to be effective can only provide reasonable assurance that their objectives are achieved. As of September 30, 2025, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and President and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Exchange Act Rule 13a-15(e)) pursuant to Rule 13a-15 of the Exchange Act. Based upon that evaluation, our Chief Executive Officer and President and Chief Financial Officer concluded that our disclosure controls and procedures are not effective at the reasonable assurance level. Our size has prevented us from being able to employ sufficient resources to enable us to have an adequate level of supervision and segregation of duties. Therefore, it is difficult to effectively segregate accounting duties which comprises a material weakness in internal controls. This lack of segregation of duties leads management to conclude that the Company’s disclosure controls and procedures are not effective to give reasonable assurance that the information required to be disclosed in reports that the Company files under the Exchange Act is recorded, processed, summarized and reported as and when required. To the extent reasonably possible given our limited resources, we are taking measures to cure the aforementioned weaknesses, including, but not limited to, increasing the capacity of our qualified financial personnel to ensure that accounting policies and procedures are consistent across the organization and that we have adequate controls over our Exchange Act reporting disclosures. On August 1, 2025, we completed the SImmetry Acquisition and the SIMPL Acquisition (together, the “SI Acquisition”), which were accounted for as a business combination pursuant to ASC 805. Given the recent date of the acquisition and as integration activities are on-going, management did not include these businesses in its quarterly disclosure controls and procedures assessment as of September 30, 2025. Changes in Internal Control over Financial Reporting During the quarter ended September 30, 2025, we established adequate controls designed to provide reasonable assurance regarding the financial reporting for transactions related to the SI Acquisition. Other than changes related to the acquired businesses, there have been no changes in our internal control procedures over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) during our fiscal quarter ended September 30, 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. 23 PART II. OTHER INFORMATION ITEM 1. LEGAL PROCEDINGS None. ITEM 1A. RISK FACTORS As a smaller reporting company as defined by Rule 12b-2 of the Securities Exchange Act of 1934, as amended, and in item 10(f)(1) of Regulation S-K, we are electing scaled disclosure reporting obligations and therefore are not required to provide the information required by this item. ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS (A) Unregistered Sales of Equity Securities None. (B) Use of Proceeds Not applicable. (C) Issuer Purchases of Equity Securities None. ITEM 3. DEFAULTS UPON SENIOR SECURITIES None. ITEM 4. MINE SAFETY DISCLOSURES Not Applicable. ITEM 5. OTHER INFORMATION None . 24 ITEM 6. EXHIBITS EXHIBIT INDEX Exhibit Number Description 3.1 Second Amended and Restated Certificate of Incorporation of the Registrant (incorporated by reference to the Registrant’s Registration Statement No. 333-271648, filed on May 4, 2023) 3.2 Certificate of Correction to Second Amended and Restated Certificate of Incorporation of the Registrant, filed on October 25, 2023 (incorporated by reference to Registrant’s Registration Statement No. 333-290808, filed on October 10, 2025) 3.3 Amendment to Certificate of Incorporation Certificate of Amendment of Second Amended and Restated Certificate of Incorporation of the Registrant, filed on November 1, 2023 (incorporated by reference to Registrant’s Current Report on Form 8-K, filed on November 7, 2023) 3.4 Amendment to Certificate of Incorporation Certificate of Amendment of Second Amended and Restated Certificate of Incorporation of the Registrant, filed on September 4, 2024 (incorporated by reference to Registrant’s Registration Statement No. 333-290808, filed on October 10, 2025) 3.5 Bylaws of the Registrant (incorporated by reference to the Registrant’s Registration Statement No. 333-260931, filed on April 20, 2022) 3.6 Certificate of Designations, Rights and Preferences for Series A Preferred Stock (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on February 22, 2024) 3.7 Amendment to Certificate of Designations, Rights and Preferences for Series A Preferred Stock (incorporated by reference to the Registrant’s Registration Statement No. 333-281531, filed on September 9, 2024) 3.8 Certificate of Designations, Rights and Preferences for Series B Preferred Stock (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on September 6, 2024) 4.1 Form of Representative’s Warrant in connection with the Registrant’s Initial Public Offering (incorporated by reference to the Registrant’s Registration Statement No. 333-260931, filed on April 15, 2022) 4.2 Form of publicly traded Warrant issued on June 16, 2023 (Incorporated by reference to exhibit 4.1 the Registrant’s Registration Statement No. 333-272488, filed on June 7, 2023) 4.3 Form of Warrant Agency Agreement between the Company and VStock Transfer, LLC (incorporated by reference to exhibit 4.3 to the Registrant’s Registration Statement No. 333-272488, filed on June 7, 2023) 4.4 Form of Warrant issued to investors on November 21, 2023 (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on November 28, 2023) 4.5 Form of Warrant issued to investors in the Series A Preferred Stock on February 20, 2024 (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on February 22, 2024) 4.6 Form of Warrant issued to the investors in the Series B Preferred Stock (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on September 6, 2024) 4.7 Description of Securities of the Registrant (incorporated by reference to the Registrant’s 8-A12B Registration Statement, filed on April 26, 2022) 4.8 Form of Series C-1 Warrant (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on March 12, 2025) 4.9 Form of Series C-2 Warrant (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on March 12, 2025) 10.1## Employment Agreement dated June 1, 2021 between Steven M. Foster and the Registrant (incorporated by reference to the Registrant’s Registration Statement No. 333-260931, filed on April 20, 2022) 10.2## Employment Agreement dated June 1, 2021 between Richard Ginn and the Registrant (incorporated by reference to the Registrant’s Registration Statement No. 333-260931, filed on April 20, 2022) 10.3## Consulting Agreement dated May 7, 2021 by and between Richard Ferrari and the Registrant (incorporated by reference to the Registrant’s Registration Statement No. 333-260931, filed on April 20, 2022) 10.4 Tennon Medical 2022 Equity Incentive Plan (incorporated by reference to the Registrant’s Registration Statement No. 333-271648, filed on May 4, 2023) 10.5 Amendment to Tenon Medical, Inc. 2022 Equity Incentive Plan, dated as of September 18, 2025 (incorporated by reference to Registrant’s Registration Statement No. 333-290808, filed on October 10, 2025) 25 10.6 Form of Securities Purchase Agreement between the Registrant and Lincoln Park Capital Fund, LLC (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on July 28, 2023) 10.7 Form of Securities Purchase Agreement entered into between the Registrant and investors in the Series A Preferred Stock (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on February 22, 2024) 10.8 Form of Securities Purchase Agreement entered into between the Registrant and investors in the November 2023 Notes (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on November 28, 2023) 10.9 Form of Securities Purchase Agreement entered into between the Registrant and investors in the Series B Preferred Stock (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on September 6, 2024) 10.10 Form of Inducement Letter, dated March 11, 2025 (incorporated by reference to the Registrant’s Current Report on Form 8-K, filed on March 12, 2025) 19.1 Insider Trading Policy (incorporated by reference to the Registrant’s Annual Report on Form 10-K, filed on March 29, 2024) 21.1 List of Subsidiaries of the Registrant (incorporated by reference to the Registrant’s Registration Statement No. 333-281531, filed on September 9, 2024) 31.1* Rule 13a-14(a)/15d-14(a) Certification of the Chief Executive Officer and President of Tenon Medical, Inc. 31.2* Rule 13a-14(a)/15d-14(a) Certification of the Chief Financial Officer of Tenon Medical, Inc. 32.1** Section 1350 Certification of the President and Chief Executive Officer of Tenon Medical, Inc. 32.2** Section 1350 Certification of the Chief Financial Officer of Tenon Medical, Inc. 101.INS* Inline XBRL Instance Document 101.SCH* Inline XBRL Taxonomy Extension Schema Document 101.CAL* Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.DEF* Inline XBRL Taxonomy Extension Definition Linkbase Document 101.LAB* Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE* Inline XBRL Taxonomy Extension Presentation Linkbase Document 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) ## Denotes management compensation plan, agreement or arrangement * Filed herewith ** Exhibits 32.1 and 32.2 are being furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that section, nor shall such exhibits be deemed to be incorporated by reference in any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as otherwise specifically stated in such filing. 26 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. TENON MEDICAL, INC. Dated: November 13, 2025 /s/ Steven M. Foster Steven M. Foster Chief Executive Officer and President, Director (Principal Executive Officer) Dated: November 13, 2025 /s/ Kevin Williamson Kevin Williamson Chief Financial Officer (Principal Financial and Accounting Officer) 27