VirnetX Holding Corp

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(in thousands except share, per share and per device amounts)

Note 1 − Formation and Business of the Company

VirnetX Holding Corporation, which we refer to as “we”, “us”, “our”, “the Company” or “VirnetX”, is engaged in the business of commercializing a portfolio of patents. We seek to derive revenue from selling our software products including VirnetX War Room™ and VirnetX Matrix™ and licensing our technology, including VirnetX One™, and our secure domain name technology GABRIEL Connection Technology™, to various original equipment manufacturers (“OEMs”) and others, that use our technologies in the development and manufacturing of their own products within the IP-telephony, mobility, fixed-mobile convergence, and unified communications markets or who seek to secure their systems and applications.

Our portfolio of intellectual property is the foundation of our business model. We currently own approximately 205 total patents and pending applications, including 72 U.S. patents/patent applications and 133 foreign patents/validations/pending applications. Our patent portfolio is primarily focused on securing real-time communications over the Internet, as well as related services such as the establishment and maintenance of a secure domain name registry. Our patented methods also have additional applications in the key areas of device operating systems and network security. The subject matter of all our U.S and foreign patents and pending applications relates generally to securing communications over the Internet and such covers all our technology and other products. Some of our issued U.S. and foreign patents expire at various times during the period from 2023 to 2034.

Note 2 − Summary of Significant Accounting Policies

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported period. The critical accounting policies we employ in the preparation of our consolidated financial statements are those which involve impairment of long-lived assets, income taxes, fair value of financial instruments and stock-based compensation.

Use of Estimates

We prepare our consolidated financial statements in accordance with U.S. GAAP. In doing so, we have to make estimates and assumptions that affect our reported amounts of assets, liabilities, revenues, and expenses, as well as related disclosure of contingent assets and liabilities. In some cases, we could reasonably have used different accounting policies and estimates. In some cases, changes in the accounting estimates are reasonably likely to occur from period to period. Accordingly, actual results could differ materially from our estimates. To the extent that there are material differences between these estimates and actual results, our financial condition or results of operations will be affected. We base our estimates on past experience and other assumptions that we believe are reasonable under the circumstances, and we evaluate these estimates on an ongoing basis. We refer to accounting estimates of this type as critical accounting policies and estimates, which we discuss further below. We have reviewed our critical accounting policies and estimates with the Audit Committee of our Board of Directors.

Basis of Consolidation

The consolidated financial statements include the accounts of VirnetX Holding Corporation and our wholly owned subsidiaries. All intercompany balances and transactions have been eliminated.

Revenue Recognition

The Company derives revenue from licensing and royalty fees from contracts with customers which often span several years. We account for this revenue in accordance with Accounting Standards Codification (“ASC”) Topic 606, Revenue from Contracts with Customers. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. Our revenue arrangements may consist of multiple-element arrangements, with revenue for each unit of accounting recognized as the product or service is delivered to the customer.

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With the licensing of our patents, performance obligations are generally satisfied at a point in time as work is complete when our patent rights are transferred to our customers. We generally have no further obligation to our customers regarding our technology.

Certain contracts may require our customers to enter into a hosting arrangement with us and for these arrangements, revenue is recognized over time, generally over the life of the servicing contract.

The Company actively monitors and enforces its intellectual property (“IP”) rights, including seeking appropriate compensation from third parties that utilize the Company’s IP without a license. As a result, the Company may, from time to time, receive payments as part of a settlement or compensation for a patent infringement dispute. Proceeds received are allocated to each element identified in the settlement or compensation, based on the fair value of each element. Generally, settlements and compensation may include the following elements: the value of a license or royalty agreement, cost reimbursement, damages, and interest. Elements identified related to licensing and royalty are recognized as revenue. Elements identified as reimbursed costs are generally recorded as a reduction to the reported expenses. Elements identified as damages or interest are generally recorded in other income in the condensed consolidated statement of operations.

Licensing Costs

Included in operating expenses are licensing costs we incurred in conjunction with a patent infringement case.

Contingent Gains

ASC Topic 450-30-25, Contingent Gains, prohibits recognition of contingent gains until realized. Accordingly, we do not record contingent gains ahead of such realization. Management generally considers any such gains as realized only upon the collection of cash.

Cash and Cash Equivalents

We consider all highly liquid investments purchased with original maturities of three months or less at the date of purchase to be cash equivalents. Our cash and cash equivalents are not subject to significant interest rate risk due to the short maturities of these investments.

Investments

Investments classified as available-for-sale are recorded at fair market value. Unrealized gains and losses are reported as other comprehensive income. Realized gains and losses are recorded in income in the period they are realized using specific identification of each security’s cost basis. We invest our excess cash primarily in highly liquid debt instruments including corporate, government and federal agency securities, with contractual maturities less thantwo years. By policy, we limit the amount of credit exposure to any one issuer.

We have elected the investment measurement alternative for other investments without readily determinable fair values. During 2023, we invested $2,000 in L2 Holdings LLC and $500 in OP Media Inc. These investments are carried at our initial cost less any impairment, because we do not have the ability to exercise significant influence over operating and financial matters. For these investments, we adjust the carrying value for any purchases or sales of our ownership interests. Periodically, we evaluate these investments for impairment. If we identify an impairment, we reduce the carrying value for the impairment loss with a charge to earnings. We havenot identified any impairment as of December 31, 2023.

Concentration of Credit Risk and Other Risks and Uncertainties

Our cash and cash equivalents are primarily maintained attwo major financial institutions in the United States. Deposits held with these financial institutions may exceed the amount of insurance provided on such deposits. A portion of those balances are insured by the Federal Deposit Insurance Corporation, or FDIC. In 2023, we had, at times, funds that were uninsured. We do not believe that we are subject to any unusual financial risk beyond the normal risk associated with commercial banking relationships. We have not experienced any losses on our deposits of cash and cash equivalents.

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Fair Value

The carrying amounts of our financial instruments, including cash equivalents, accounts payable, and accrued liabilities, approximate fair value because of their generally short maturities.

Property and Equipment

Property and equipment are stated at historical cost, less accumulated depreciation, and amortization. Depreciation and amortization are computed using the accelerated and straight-line methods over the estimated useful lives of the assets, which range from five toseven years. Repair and maintenance costs are charged to expense as incurred.

Leases

The Company determines if an arrangement is a lease at inception in accordance with ASC Topic 842. Operating lease right-of-use (“ROU”) assets are included in Prepaid expenses, and other assets on the Condensed Consolidated Balance Sheets. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term, using the risk-free rate, U.S. prime rate, of 8.5% in 2023.

Intangible Assets

We record intangible assets at cost, less accumulated amortization. Amortization of intangible assets is provided over their estimated useful lives, which can range from 3 to 15 years, on either a straight-line basis or as revenue is generated by the assets.

Impairment of Long-Lived Assets

We identify and record impairment losses on long-lived assets used in operations when events and changes in circumstances indicate that the carrying amount of an asset might not be recoverable, but not less than annually. Recoverability is measured by comparison of the anticipated future net undiscounted cash flows to the related assets’ carrying value. If such assets are deemed impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the projected discounted future net cash flows arising from the asset.

Research and Development

Research and development costs include expenses paid to outside development consultants and compensation related expenses for our engineering staff. Research and development costs are expensed as incurred.

Income Taxes

We account for income taxes using the asset and liability method. The asset and liability method requires the recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between the tax basis and financial reporting basis of our assets and liabilities. We calculate current and deferred tax provisions based on estimates and assumptions that could differ from actual results reflected on the income tax returns filed during the following years. Adjustments based on filed returns are recorded when identified in the subsequent years. The effect on deferred taxes for a change in tax rates is recognized in income in the period that the tax rate change is enacted. In assessing our deferred tax assets, we consider whether it is more likely than not that all or some portion of the deferred tax assets will not be realized.

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The 2017 U.S. Tax Cuts and Jobs Act changes IRC Section 174, regarding capitalization of book research and development (“R&D”) expenses for income tax purposes. Effective for tax years beginning in 2022 IRC Section 174 requires the capitalization of book R&D expenses which are capitalized and amortized over 5 years for domestic R&D expenses and over 15 years for foreign R&D expenses. To date there has been limited guidance from the IRS on how to quantify the amount of book R&D expenses subject to capitalization, including the indirect expenses supporting the R&D function. Due to the limited guidance, some assumptions were made in our estimates.

A valuation allowance is provided for deferred income tax assets when, in our judgment, based upon currently available information and other factors, it is more likely than not that all or a portion of such deferred income tax assets will not be realized. The determination of the need for a valuation allowance is based on an on-going evaluation of current information including, among other things, historical operating results, estimates of future earnings in different taxing jurisdictions and the expected timing of the reversals of temporary differences. We believe the determination to record a valuation allowance to reduce a deferred income tax asset is a significant accounting estimate because it is based, among other things, on an estimate of future taxable income in the United States and certain other jurisdictions, which is susceptible to change and may or may not occur, and because the impact of adjusting a valuation allowance may be material. In determining when to release the valuation allowance established against our net deferred income tax assets, we consider all available evidence, both positive and negative. We continually assess our ability to generate sufficient taxable income during future periods in which our deferred tax assets may be realized. If and when we believe it is more likely than not that we will recover our deferred tax assets, we will reverse the valuation allowance as an income tax benefit in our statements of operations.

We account for our uncertain tax positions in accordance with U.S. GAAP, which utilizes a two-step approach to evaluate tax positions. Step one, recognition, requires evaluation of the tax position to determine if based solely on technical merits it is more likely than not to be sustained upon examination. Step two, measurement, is addressed only if a position is more likely than not to be sustained. In step two, the tax benefit is measured as the largest amount of benefit, determined on a cumulative probability basis, which is more likely than not to be realized upon ultimate settlement with tax authorities. If a position does not meet the more likely than not threshold for recognition in step one, no benefit is recorded until the first subsequent period in which the more likely than not standard is met, the issue is resolved with the taxing authority, or the statute of limitations expires. Positions previously recognized are derecognized when we subsequently determine the position no longer is more likely than not to be sustained. Evaluation of tax positions, their technical merits, and measurements using cumulative probability are highly subjective management estimates. Actual results could differ materially from these estimates.

Stock-Based Compensation

We account for stock-based compensation using the fair value recognition method in accordance with U.S. GAAP. We recognize these compensation costs on a straight-line basis over the requisite service period of the award, which is generally a vesting term of 4 years. We recognize forfeitures, if any, when they occur. In addition, we record stock-based compensation expense for awards granted to non-employees at fair value of the consideration received or the fair value of the equity instruments issued, as they vest, over the performance period (See Note 6 - Stock-Based Compensation).

Earnings per Share

Basic earnings per share are computed by dividing earnings available to common stockholders by the weighted average number of outstanding common shares during the period. Diluted earnings per share is computed by dividing net income by the weighted average number of shares outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued.

New Accounting Pronouncements

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires disaggregated information about an entity’s effective tax rate reconciliation as well as information on income tax paid. The guidance in this ASU is effective for public companies with annual periods beginning after December 15, 2024. We plan to adopt the guidance for the fiscal year ending December 31, 2025. We are currently evaluating the effect adoption of this ASU will have on our consolidated financial statements.

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Note 3 − Property and Equipment

Our major classes of property and equipment were as follows:

Depreciation expense for 2023 and 2022 was $9 and $7, respectively.

Note 4 − Commitments, Contingencies and Related Party Transactions

We have a service agreement for the use of an aircraft from K2 Investment Fund LLC (“LLC”) for business travel for our employees. We incurred approximately $1,097 and $1,123 in rental fees and reimbursements to the LLC in 2023 and 2022, respectively. We pay for the Company’s business usage of the aircraft and have no right to purchase. Our Chief Executive Officer and Chief Administrative Officer are the managing partners of the LLC and control the equity interests of the LLC. We entered into a 12-month non-exclusive agreement with the LLC for use of the plane at a rate of $8 per flight hour, with no minimum usage requirement. The agreement contains other terms and conditions normal in such transactions and can be cancelled by either us or the LLC with 30 days’ notice. The agreement renews on an annual basis unless terminated by either party. Neither party has exercised their termination rights.

See Note 13 for further discussion of our lease commitments.

Note 5 − Stock Plan

Our stockholders approved the Amended and Restated Equity Incentive Plan (the “A&R Plan”) at our annual shareholders’ meeting in June 2023, which added 175,000 shares to the plan. Our prior plan expired March 29, 2023; no further awards will be made under the prior plan, and the A&R Plan will govern awards granted under the prior plan. The A&R Plan provides for the granting of stock options, restricted stock units (“RSUs”) and restricted stock. Options granted under the A&R Plan are granted with an exercise price equal to the fair value of the of our stock on the date of grant. RSUs and restricted stock are granted at the fair value of our stock on the date of grant because they have no exercise price. The fair value of options, RSUs and restricted stock are expensed over the vesting periods. All options, RSUs and restricted stock are subject to forfeiture if service terminates prior to the shares vesting. At December 31, 2023, there were 225,778 shares available for grant under the A&R Plan.

Note 6 − Stock-Based Compensation

The following tables summarize information and activity under the plan for the indicated periods.

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Intrinsic value is calculated as the difference between the per-share market price of our common stock on the last trading day of 2023, which was $7 and the exercise price of the awards. For awards exercised, the intrinsic value is the difference between market price and the exercise price on the date of exercise.

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Stock-based compensation expense is included in operating expense for each period as follows:

As of December 31, 2023, there was $3,006 of unrecognized stock-based compensation expense; $2,025 related to unvested stock options, $683 related to unvested RSUs, and $298 related to unvested restricted stock. These costs are expected to be recognized over a weighted-average period of 1.8 years for options,1.74 years for RSUs, and 3.54 years for restricted stock.

The fair value of each option grant was estimated on the date of grant using the Black-Scholes option pricing model using the following weighted average assumptions:

Based on the Black-Scholes option pricing model, the weighted average estimated fair value of employee stock options granted was $6.96 and $21.77 per share during 2023 and 2022, respectively. The expected life was determined using the simplified method outlined in ASC 718, “Compensation - Stock Compensation”. Expected volatility of the stock options was based upon historical data and other relevant factors.

Note 7 − Earnings Per Share

Basic earnings per share are based on the weighted average number of shares outstanding for a period. Diluted earnings per share are based upon the weighted average number of shares and potentially dilutive common shares outstanding. Potential common shares outstanding principally include stock options, RSUs and unvested restricted stock under our stock plan and warrants. During 2023 and 2022 we incurred losses; therefore, the effect of any common stock equivalent would be anti-dilutive.

The table below sets forth the basic and diluted loss per share calculations:

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Note 8 − Common Stock

Each share of common stock has the right toone vote. The holders of common stock are entitled to receive dividends whenever funds are legally available and when declared by our Board of Directors, subject to the prior rights of holders of all classes of stock outstanding having priority rights as to dividends. Our restated articles of incorporation authorize us to issue up to 100,000,000 shares of $0.0001 par value common stock.

Effective October 25, 2023, every 20 shares of our common stock outstanding was combined into one share of common stock. Proportional adjustments were also made to the number of restricted stock, common stock issuable upon the exercise of options, warrants as well as common stock issuable upon the vesting of RSUs. The exercise price of all equity awards were also proportionally adjusted. The accompanying financial statements include the effect of this adjustment on all periods presented.

Dividends

In 2023, we paid a one-time capital dividend of $20 per share of common stock to shareholders. The timing and amount of future dividends, if any, will depend on market conditions, corporate business and financial considerations and regulatory requirements.

Warrants

In 2020, we issued warrants for the purchase of 1,250 shares of common stock at an exercise price of $115 per share, exercisable on the date of grant, expiring in April 2025. The weighted average fair value at the grant date was $83.20 per warrant. The fair value at the grant date was estimated utilizing the Black-Scholes valuation model with the following weighted average assumptions (i) dividend yield on our common stock of 0 percent (ii) expected stock price volatility of 97 percent (iii) a risk-free interest rate of 0.27 percent and (iv) and expected option term of 5 years.

Note 9 − Employee Benefit Plan

We sponsor a defined contribution 401k plan covering substantially all our employees. Our matching contribution to the plan was approximately $229 and $179 in 2023 and 2022, respectively.

Note 10 − Income Taxes

The income tax provision (benefit) is comprised of the following:

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A reconciliation of the United States federal statutory income tax rate to our effective income tax rate is as follows:

Deferred tax assets (liabilities) consist of the following:

Pursuant to IRC Section 174, we capitalized direct and indirect research and development costs for our tax return totaling $8,599 in 2023 and $5,140 in 2022, of which $1,888 will be amortized in our 2023 tax return and $514 in our 2022 tax return. At December 31, 2023, unamortized capitalized direct and indirect research and development costs for our tax return totaled $11,337, resulting in a deferred tax asset of $2,381.

At December 31, 2023, we had federal and state net operating loss carryforwards of approximately $72,645 and $109,435, respectively. Federal net operating loss carryforwards do not expire. None of the state net operating loss carryforward is apportioned to a deferred tax asset, because currently we do not have operations in states where losses accumulated. The state net operating loss carryforward begins expiring in 2029. We provide full valuation allowances for our net deferred tax assets, including NOL carryforwards generated during the years, based on our evaluation of positive and negative evidence, including our history of operating losses and the uncertainty of generating future taxable income that would enable us to realize our deferred tax assets.

We are required to recognize the financial statement effects of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. At December 31, 2023, we haveno uncertain tax positions.

Our tax years for 2005 and forward are subject to examination by the U.S. tax authority and various state tax authorities. These years are open due to NOLs and tax credits generated in these years were utilized in 2020. The statute of limitation for these years shall expire three years after the date of filing 2020 income tax returns, which is October 2024.

Our policy is to recognize interest and penalties, if any, accrued on any unrecognized tax benefits, as a component of income tax expense. We hadno interest or penalties accrued in 2023.

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Note 11 − Fair Value Measurement

Fair value is the price that would result from an orderly transaction between market participants at the measurement date. A fair value hierarchy prioritizes the inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). Level 2 measurements utilize either directly or indirectly observable inputs in markets other than quoted prices in active markets.

Our financial instruments are stated at amounts that equal, or approximate, fair value. When we estimate fair value, we utilize market data or assumptions that we believe market participants would use in pricing the financial instrument, including assumptions about risk and inputs to the valuation technique. We use valuation techniques, primarily the income and market approach, which maximizes the use of observable inputs and minimize the use of unobservable inputs for recurring fair value measurements.

Mutual funds: Valued at the quoted net asset value (NAV) of shares held.

U.S. agency and treasury securities: Fair value measured at the closing price reported on the active market on which the individual securities are traded.

The following table shows the adjusted cost, gross unrealized gains, gross unrealized losses, and fair value of our financial assets as of December 31, 2023 and 2022 (in thousands):

The maturities of our investments generally range from withinone totwo years. Actual maturities could differ from contractual maturities due to call or prepayment provisions.

Note 12 − Litigation (all dollar amounts in this section are expressed in thousands except for rates per device)

We have several intellectual property infringement lawsuits pending in the United States Court of Appeals for the Federal Circuit (“USCAFC”).

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VirnetX Inc. v. Apple, Inc. (Case 6:12-CV-00855-LED) (“Apple II”)

This case began on November 6, 2012, when we filed a complaint against Apple Inc. (“Apple”) in United States District Court (“USDC”) in which we alleged that Apple infringed on certain of our patents, (U.S. Patent Nos. 6,502,135, 7,418,504, 7,921,211 and 7,490,151). We sought damages and injunctive relief. The accused products include the iPhone 5, iPod Touch 5th Generation, iPad 4th Generation, iPad mini, and the latest Macintosh computers. The USDC entered a Final Judgment and issued its Memorandum Opinion and Order regarding post-trial motions, affirming the jury’s verdict of $502,600 and granting VirnetX motions for supplemental damages, a sunset royalty, and the royalty rate of $1.20 per infringing iPhone, iPad and Mac products, pre-judgment and post-judgment interest and costs. Apple filed a notice of appeal with the United States Court of Appeals for the Federal Circuit (“USCAFC”) in the Apple II case.

On October 9, 2018, USCAFC docketed the appeal as Case No. 19-1050 - VirnetX Inc. v. Apple Inc. On November 22, 2019, the USCAFC issued an opinion affirming the district court’s findings that Apple is precluded from making certain invalidity arguments and that Apple infringed the ‘135 and ‘151 patents; reversing the USDC’s finding that Apple infringed the ‘504 and ‘211 patents; and remanding the case for proceedings on damages. Apple sought panel and en banc rehearing, which the USCAFC denied on February 10, 2020.

On February 22, 2021, the USCAFC docketed the appeal as Case No. 19-1672. Apple’s opening brief was filed on June 2, 2021. VirnetX filed its responsive brief on July 26, 2021. Apple filed its reply brief on September 13, 2021. Oral arguments were held on September 8, 2022. On March 31, 2023, the USCAFC issued its decision vacating the USDC’s judgement in this matter and remanding it back to the USDC with instructions to dismiss the case as moot. On July 14, 2023 the District Court vacated its prior Final Judgment against Apple dated January 6, 2021 and dismissed the case as moot. On May 1, 2023, VirnetX filed a petition for panel rehearing. On June 27, 2023, the petition for panel rehearing was denied, and the mandate issued on June 30, 2023. VirnetX filed a petition for a writ of certiorari with the United States Supreme Court, on September 20, 2023. On February 20, 2024, the Supreme Court denied our petition. We are evaluating all our options in this matter.

VirnetX Inc. v. Mangrove Partners Master Fund, Ltd., Apple Inc. (USCAFC Case 20-2271) and VirnetX Inc. v. Mangrove Partners Master Fund, Ltd., Apple Inc., and Black Swamp, LLC (USCAFC Case 20-2272)

On September 15, 2020, we filed with the USCAFC an appeal of the invalidity findings by the Patent Trial and Appeal Board (“PTAB”) in inter-partes review proceedings IPR2015-01046 and IPR2016-00062 involving our U.S. Patent No. 6,502,135, and an appeal of the invalidity findings by the PTAB in inter-partes review proceedings IPR2015-1047, IPR2016-00063, and IPR2016-00167 involving our U.S. Patent No. 7,490,151. On September 25, 2020, the USCAFC issued an order consolidating thetwo appeals. On December 15, 2020, we filed a motion to vacate the PTAB decisions below and to remand these appeals to the PTAB. On March 16, 2021, the USCAFC denied the motion without prejudice to us raising the challenges made in the motion in our opening brief. Our opening brief was filed on June 7, 2021.

On June 23, 2021, the USCAFC entered an order directing us (and parties in other appeals that raised Appointments Clause challenges) to file a brief explaining how they believe their cases should proceed in light of the Supreme Court’s decision in United States v. Arthrex, Inc., 141 S. Ct. 1970 (2021). On July 7, 2021, we filed a brief in response to the court’s order. Other parties, including the U.S. Patent and Trademark Office (“USPTO”) filed their responses on July 21, 2021. On August 19, 2021, USCAFC issued an order remanding these appeals for the limited purpose of allowing VirnetX the opportunity to request rehearing of the PTAB’s final written decisions by the Director of the USPTO. The USCAFC retained jurisdiction over the appeals in the meantime. On September 20, 2021, we filed our requests for Director rehearing with the USPTO. On October 29, 2021, our requests for Director rehearing were denied. We subsequently filed an amended opening brief to the USCAFC on December 10, 2021, the other parties filed response briefs on February 2, 2022, and we filed a reply brief on February 22, 2022. All the briefings have been completed. The oral arguments in this matter were held on September 8, 2022. On March 30, 2023, the USCAFC issued its decision affirming PTAB’s decisions finding certain claims of the ‘135 patent and the ‘151 patent to be unpatentable. On June 5, 2023, VirnetX filed a petition for panel rehearing. On June 22, 2023, the petition for panel rehearing was denied, and the mandate issued on June 29, 2023. VirnetX filed a petition for a writ of certiorari with the United States Supreme Court, on September 20, 2023. On February 20, 2024, the Supreme Court denied our petition. We are evaluating all our options in this matter.

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VirnetX Inc. v. Hirshfeld (USCAFC Case 17-2593, -2594)

On September 22, 2017, we filed with the USCAFC an appeal of the invalidity findings by the PTAB in inter-partes review proceeding IPR2016-00693 involving our U.S. Patent No. 7,418,504, and an appeal of the invalidity findings by the PTAB in inter-partes review proceeding IPR2016-00957 involving our U.S. Patent No. 7,921,211. On September 16, 2021, USCAFC issued an order remanding these appeals for the limited purpose of allowing VirnetX the opportunity to request rehearing of the PTAB’s final written decisions by the Director of the USPTO. The USCAFC retained jurisdiction over the appeals in the meantime. On October 18, 2021, we filed our requests for Director rehearing with the USPTO. On January 7, 2022, our requests for Director rehearing were denied. On January 21, 2022, we informed the USCAFC about the denial of Director rehearing and requested that the court dismiss the appeal involving IPR2016-00957 as moot and vacate the PTAB’s underlying decision. On April 4, 2022, the USCAFC vacated the PTAB’s decision in IPR2016-00957 and remanded Appeal No. 17-2594 with instructions to dismiss. In the April 4, 2022 order, the USCAFC further set a briefing schedule, in Appeal No. 17-2593. VirnetX filed its opening brief on September 12, 2022. The USPTO filed its response brief on December 20, 2022. VirnetX filed its reply brief on February 14, 2023. On April 18, 2023, VirnetX filed a motion to hold this appeal in abeyance pending the disposition of any petition for rehearing in the No. 20-2271, -2272 appeal, and pending the United States Supreme Court’s disposition of a pending petition for a writ of certiorari in Arthrex, Inc. v. Smith & Nephew, Inc., No. 22-639. That motion was denied on June 1, 2023. On October 20, 2023, the USCAFC issued a decision finding the appeal moot in view of its concurrent decision in USCAFC No. 22-2234. VirnetX sought rehearing, which was denied, and the mandate to close the case was issued on January 12, 2024.

VirnetX Inc. v. Cisco Systems, Inc. (USCAFC Case 19-1671)

On March 18, 2019, we filed with the USCAFC an appeal of the invalidity findings by the PTAB in inter-partes re-examination proceeding 95/001,679 involving our U.S. Patent No. 6,502,135. On October 5, 2021, USCAFC issued an order remanding these appeals for the limited purpose of allowing VirnetX the opportunity to request rehearing of the PTAB’s final written decisions by the Director of the PTO. The USCAFC retained jurisdiction over the appeals in the meantime. Our request for Director rehearing with the PTO was filed on November 5, 2021. On January 10, 2022, our request for Director rehearing was denied. We informed the USCAFC about the denial of Director rehearing. VirnetX’s opening brief was filed on June 23, 2022. The USPTO’s response brief was filed on August 2, 2022, and Cisco’s response brief was filed on September 2, 2022. VirnetX filed its reply brief on October 7, 2022. On April 18, 2023, VirnetX filed a motion to hold this appeal in abeyance pending the disposition of any petition for rehearing in the No. 20-2271, -2272 appeal, and pending the Supreme Court’s disposition of a pending petition for a writ of certiorari in Arthrex, Inc. v. Smith & Nephew, Inc., No. 22-639. The motion, filed on April 18, 2023, was denied on June 1, 2023. On October 20, 2023, the USCAFC issued a decision finding the appeal moot in view of its concurrent decision in USCAFC No. 22-1523 and its prior decision in USCAFC No. 20-2271. VirnetX sought rehearing, which was denied, and the mandate to close the case was issued on January 12, 2024.

VirnetX Inc. v. Apple Inc. (USCAFC Case 22-1523) (“Apple Reexam I”)

On March 10, 2022, we filed with the USCAFC an appeal of the invalidity findings by the PTAB in inter-partes re-examination proceeding 95/001,682 involving our U.S. Patent No. 6,502,135. Our opening brief was filed on August 22, 2022. Apple and USPTO each filed a response brief on December 28, 2022. VirnetX filed its reply brief on February 8, 2023. On April 18, 2023, VirnetX filed a motion to hold this appeal in abeyance pending the disposition of any petition for rehearing in the No. 20-2271, -2272 appeal, and pending the Supreme Court’s disposition of a pending petition for a writ of certiorari in Arthrex, Inc. v. Smith & Nephew, Inc., No. 22-639, which was denied on June 1, 2023. On October 20, 2023, the USCAFC issued a decision affirming the PTAB’s invalidity findings. VirnetX sought rehearing, which was denied, and the mandate to close the case was issued on January 12, 2024.

VirnetX Inc. v. Apple Inc. (USCAFC Case 22-1997) (“Apple Reexam II”)

On July 6, 2022, we filed with the USCAFC an appeal of the invalidity findings by the PTAB in inter-partes re-examination proceeding 95/001,697 involving our U.S. Patent No. 7,490,151. On October 17, 2022, we filed a motion to remand the appeal in light of the PTAB’s refusal to permit Director rehearing. On January 23, 2023, the USCAFC denied that motion without prejudice to the parties raising their arguments in the merits briefs. VirnetX opening brief was filed on May 8, 2023, and Apple and the USPTO each filed a response brief on July 24, 2023. VirnetX filed its reply brief on September 1, 2023. We currently await scheduling of oral arguments.

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VirnetX Inc. v. Cisco Systems, Inc. (USCAFC Case 22-2234)

On September 16, 2022, we filed with the USCAFC an appeal of the invalidity findings by the PTAB in inter-partes re-examination proceeding 95/001,851 involving our U.S. Patent No. 7,418,504. We filed our opening brief on February 28, 2023. Cisco’s response brief was filed on May 10, 2023, and VirnetX reply brief was filed on June 21, 2023. On October 20, 2023, the USCAFC issued a decision affirming the PTAB’s invalidity findings. The mandate to close the case was issued on December 26, 2023.

VirnetX Inc. v. Cisco Systems, Inc.(USCAFC Case 23-1765)

On April 7, 2023, we filed with the USCAFC an appeal of the invalidity findings by the PTAB in inter-partes re-examination proceeding 95/001,714 involving our U.S. Patent No. 7,490,151. The certified list is due to be filed by the USPTO by May 30, 2023, and our opening brief will be due 60 days thereafter. In addition, on April 21, 2023, Cisco filed a cross-appeal. On September 29, 2023, VirnetX filed a motion to remand. That motion was denied without prejudice to VirnetX raising the same arguments in its opening appeal brief in an order dated December 27, 2023, which also set the deadline for VirnetX to file an opening brief for February 5, 2024. VirnetX filed its opening brief on February 5, 2024, and Cisco’s opening/response brief’s is currently due March 18, 2024

Other Legal Matters

One or more potential intellectual property infringement claims may also be available to us against certain other companies who have the resources to defend against any such claims. Although we believe these potential claims are likely valid, commencing a lawsuit can be expensive and time-consuming, and there is no assurance that we could prevail on such potential claims if we made them. In addition, bringing a lawsuit may lead to potential counterclaims which may distract our management and our other resources, including capital resources, from efforts to successfully commercialize our products.

Currently, we are not a party to any other pending legal proceedings and are not aware of any proceeding threatened or contemplated against us.

Note 13 − Leases

In October 2023, we renewed our lease for office space in Nevada with a third party recording an ROU asset and lease liability of $102. The lease requires monthly payments of $4.6 and expires in October 2025. At December 31, 2023, our ROU asset and lease liability totaled $93. Lease expense totaled $55 in 2023 and $54 in 2022.

In October 2023, we executed a facility lease in Utah to be used for technical integration and as a training facility recording an ROU asset and a lease liability of $3,587. This operating lease requires monthly payments starting at $72, includes periodic increases, providessix months of free rent, and expires in April 2029. At December 31, 2023, our ROU asset and lease liability totaled $3,479 and$3,546, respectively. Lease expense totaled $140 in 2023.

The weighted average remaining life of the office and facility leases discussed above is approximately 5 years, and the related lease liability is as follows:

We also lease a facility for corporate promotional and marketing purposes which was prepaid at inception and expires in 2025. At December 31, 2023 and 2022, the ROU asset totaled $349 and $648, respectively; lease expense totaled $300 per year in 2023 and 2022. In March 2024, we renewed our facility lease, used for corporate, promotional and marketing purposes. The renewal period begins in 2025, continues for 10 years through 2035, requires either a single payment of $6,000, or annual payments each March, beginning in 2025 starting at $600 and increasing annually for a total commitment of approximately $7,500.

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We have a service agreement for the use of an aircraft from a related party discussed in more detail in Note 4. We incurred approximately $1,097 and $1,123 in rental fees and reimbursements to the entity in 2023 and 2022, respectively.

Note 14 − Subsequent Event

In January 2024, we issued 71,000 shares of restricted stock from our Amended and Restated Equity Incentive Plan.

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