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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of NRx Pharmaceuticals’ financial condition and plan of operations together with NRx Pharmaceuticals' consolidated financial statements and the related notes appearing elsewhere herein. In addition to historical information, this discussion and analysis contains forward looking statements that involve risks, uncertainties and assumptions. NRx Pharmaceuticals’ actual results may differ materially from those discussed below. Factors that could cause or contribute to such differences include, but are not limited to, those identified below, and those discussed in the section entitled “Risk Factors” included elsewhere herein.

Overview

On May 24, 2021, Big Rock Partners Acquisition Group (“BRPA”), a special purpose acquisition company, consummated the Agreement and Plan of Merger (as amended, the “Merger Agreement”) with NeuroRx, Inc., a Delaware corporation (“NeuroRx”), and Big Rock Merger Corp., a Delaware corporation and wholly owned, direct subsidiary of BRPA (“Merger Sub”). Pursuant to the Merger Agreement, on May 24, 2021 (the “Closing Date”), which has been accounted for as a reverse recapitalization, Merger Sub was merged with and into NeuroRx, with NeuroRx surviving the merger (the “Merger” and, together with the other transactions contemplated by the Merger Agreement, the “Business Combination”). On the Closing Date, BRPA changed its name to NRX Pharmaceuticals, Inc. (“NRx Pharmaceuticals” or the “Company”).

NRx Pharmaceuticals is a clinical stage pharmaceutical company that is developing, through its wholly owned operating subsidiary, NeuroRx, NRX-100 and NRX-101, the first oral therapeutic for the treatment of Bipolar Depression in patients with Acute Suicidal Ideation and Behavior (ASIB) and Sub-Acute Suicidal Ideation and Behavior (“SSIB”). NRX-100 and NRX-101 were developed based upon 30 years of basic science and clinical expertise contributed by Dr. Daniel Javitt, MD, PhD, related to the role of the brain’s N-methyl-D-aspartate (“NMDA”) receptor in regulating human thought processes in general and in regulating depression and suicidality. The NRX-100 and NRX-101 investigational therapy begins with a single dose of ketamine (NRX-100), a Food & Drug Administration (“FDA”) approved anesthetic, followed by approximately six weeks of daily oral NRX-101. NRX-101 is being developed as a rapid-onset and sustained treatment for bipolar depression with ASIB and SSIB. NRX-101 combines d-Cycloserine, a NMDA receptor modulator, and lurasidone, a 5-HT2a receptor antagonist.

NRX-101 has been awarded Fast Track designation, Breakthrough Therapy designation, a Biomarker Letter of Support, and a Special Protocol Agreement by the FDA. Peer-reviewed and published results from Phase II clinical studies demonstrate a significant decline and stabilization in symptoms of depression and suicidality following administration of DCS in combination with antidepressants. Findings from one of these studies found that bipolar patients who were already receiving a 5-HT2a antagonist demonstrated more than a 50% reduction in symptoms of depression and a 75% reduction in suicidal ideation when ketamine and DCS were added to their treatment regimen. Side effects for patients in a Phase 2a combination study of DCS and 5HT2a included mild sedation, headaches and hypomania. Breakthrough Therapy designation was awarded based on data from the STABIL-B study (NCT02974010) that demonstrated a statistically significant advantage of NRX-101 vs. lurasidone (the active ingredient used in the market leading branded bipolar depression agent) in maintaining remission from depression and suicidality following a single stabilizing dose of ketamine.

In March 2022, NRx Pharmaceuticals announced a primary focus on its psychiatry franchise and the late-stage development of NRX-101 for the treatment of bipolar depression in patients with suicidality. NRX-101 is a fixed dose combination of D-cycloserine, an NMDA antagonist, and lurasidone, a 5-HT2A atypical antipsychotic and antidepressant, for the maintenance of remission from severe bipolar depression following initial stabilization with ketamine. The previously undiscovered synergy between these two drug classes in the treatment of CNS disorders, combined with the efficacy of D-cycloserine in the treatment of depression and PTSD, is the subject of 47 issued patents and more than 43 pending patents owned by or licensed to NRx Pharmaceuticals.

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NRX-101 in Severe Bipolar Depression in Patients with Acute Suicidal Ideation and Behavior (ASIB) After Initial Stabilization with ketamine

NRX-101 Indication – Bipolar Depression in Patients with Sub-acute Suicidal Ideation and Behavior (SSIB)

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Consolidated NRX-101 Program in Suicidal Treatment-Resistant Bipolar Depression

Based on the comments and guidance from the FDA in its recent Type B meeting regarding the registrational Acute Suicidality trial and a potentially broader indication, as well as the guidance it received from the DSMB regarding the ongoing Phase IIb/3 clinical study of NRX-101 for the treatment of severe bipolar depression in patients with SSIB, the Company is evaluating changes to its registrational program for NRX-101 and will seek to consolidate patients originally expected to enroll in the ASIB study into the currently enrolling Phase IIb/3 trial. This would potentially allow registration of NRX-101 for Suicidal Treatment-Resistant Bipolar Depression, regardless of the mechanism of stabilization. With the FDA’s guidance to enroll patients for the acute (SPA) study in the outpatient setting only after stabilization, the design of this trial has effectively converged with the currently enrolling phase IIb/3 trial; patients within both groups are deemed to have treatment resistant bipolar depression with suicidality. This broader indication may also offer significant advantages in commercialization, while negating the need for a separate NDA for ketamine in Suicidal stabilization.

● We expect top-line data from this trial in the first quarter of 2024.

NRX-101 Indication – Post Traumatic Stress Disorder

Since inception, NRx Pharmaceuticals has incurred significant operating losses. For the years ended December 31, 2022 and 2021, NRx Pharmaceuticals’ net loss was $39.8 million and $93.1 million, respectively. As of December 31, 2022, NRx Pharmaceuticals had an accumulated deficit of $223.0 million.

Components of Results of Operations

Operating expenses

Research and development expenses

NRx Pharmaceuticals’ research and development expenses consist primarily of costs associated with NRx Pharmaceuticals’ clinical trials, salaries, payroll taxes, employee benefits, and equity-based compensation charges for those individuals involved in ongoing research and development efforts. Research and development costs are expensed as incurred. Advance payments for goods and services that will be used in future research and development activities are expensed when the activity has been performed or when the goods have been received.

General and administrative expenses

General and administrative expenses consist primarily of salaries, stock-based compensation, consultant fees, and professional fees for legal and accounting services.

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Settlement Expense

Settlement expense consists primarily of settlement expenses related to the GEM Warrant. See Note 8 “Commitments and Contingencies – Share Subscription Facility Agreement – GEM” of the notes to the Company’s consolidated financial statements included elsewhere in this report for further information.

Reimbursement of expenses from Relief Therapeutics

Reimbursement of expenses from Relief Therapeutics consisted of reimbursable expenses as part of the Collaboration Agreement. See Note 8 “Commitments and Contingencies – Relief Therapeutics Collaboration Agreement” of the notes to the Company’s consolidated financial statements included elsewhere in this report for further information.

Results of operations for the years ended December 31, 2022 and 2021

The following table sets forth NRx Pharmaceuticals’ selected statements of operations data for the following periods (in thousands):

Years Ended December 31, Change

Operating expenses:

Reimbursement of expenses from Relief Therapeutics — (771) 771

Other (income) expenses:

Gain on extinguishment of debt $ — $ (121) $ 121

Interest income (249) — (249)

Interest expense — 18 (18)

Change in fair value of convertible note payable 505 — 505

Change in fair value of warrant liabilities (255) (1,692) 1,437

Operating expenses

Research and development expenses

For the year ended December 31, 2022, NRx Pharmaceuticals recorded $17.0 million of research and development expenses compared to $20.3 million for the year ended December 31, 2021. The decrease of $3.2 million is related primarily to a decrease of $2.5 million in clinical trials and development expenses related to ZYESAMI, $0.7 million in stock-based compensation expense, $0.8 million related to fees paid to regulatory and process development consultants, partially offset by an increase of $0.5 in other regulatory and process development costs and $0.3 million in shipping, freight, and delivery costs. The $17.0 million and $20.3 million of research and development expenses for the years ended December 31, 2022 and 2021, respectively, include $0.6 million and $1.3 million, respectively, of non-cash stock-based compensation.

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General and administrative expenses

For the year ended December 31, 2022, NRx Pharmaceuticals recorded $27.3 million of general and administrative expenses compared to $74.9 million for the year ended December 31, 2021. The decrease of $47.6 million was primarily, related to a decrease of $53.3 million in consultant fees, of which $41.0 million related to the fair value of common stock issued in accordance to the Shareholder Agreement described in footnote 9 of the Company’s 2022 Audited Financial Statements under “VaccineCo Agreement and Issuance of Shares” and $4.8 million related to the fair value of the 200,000 shares of Common Stock issued pursuant to the BCMA as further describe in footnote 9 of the Company’s 2022 Audited Financial Statements under “Common Stock,” and $3.5 million in stock-based compensation expense, partially offset by an increase of $3.7 million in insurance expenses, $3.4 million in legal, professional and accounting fees, $1.5 million in employee expenses, and $0.6 million in other general and administrative expenses. The $27.3 million and $74.9 million of general and administrative expenses for the years ended December 31, 2022 and 2021, respectively, include $3.0 million and $60.3 million, respectively, of non-cash stock-based compensation.

Settlement expense

For the year ended December 31, 2022, NRx Pharmaceuticals recorded no settlement expense compared to $21.4 million of settlement expense for the year ended December 31, 2021 related to the GEM Warrant reflecting the incremental value of the warrant from the date of issuance through the date of exercise. Settlement expense is a non-cash expense related to the GEM Warrant.

Reimbursement of expenses from Relief Therapeutics

For the year ended December 31, 2022, NRx Pharmaceuticals received no reimbursement of expenses from Relief Therapeutics compared to $0.8 million of reimbursement of expenses from Relief Therapeutics for the year ended December 31, 2021.

Other (income) expenses

Gain on extinguishment of debt

For the year ended December 31, 2022, NRx Pharmaceuticals recorded no gain on extinguishment of debt compared to $0.1 million for the year ended December 31, 2021 which was related to the decrease of $0.1 million related to the forgiveness of the PPP Loan which resulted in a gain on extinguishment for the outstanding principal and accrued and unpaid interest.

Interest income

For the year ended December 31, 2022, NRx Pharmaceuticals recorded $0.2 million of interest income.

Change in fair value of convertible note payable

For the year ended December 31, 2022, NRx Pharmaceuticals recorded $0.5 million related to the change in fair value of the convertible note payable which is accounted for under the fair value option.

Change in fair value of warrant liabilities

For the year ended December 31, 2022, NRx Pharmaceuticals recorded a gain of $0.3 million related to the change in fair value of the warrant liabilities compared to a gain of $1.7 million for the year ended December 31, 2021. The decrease of $1.4 million related to the decrease in the fair value of certain Substitute Warrants and the Placement Warrants assumed pursuant to the Merger Agreement.

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Change in fair value of Earnout Cash liability

For the year ended December 31, 2022, NRx Pharmaceuticals recorded a gain of $4.6 million related to the change in fair value of the Earnout Cash liability compared to a gain of $20.9 million for the year ended December 31, 2021. The gains are a result of the decrease in the fair value of the Earnout Cash liability pursuant to the Merger Agreement. The gains primarily resulted from not achieving the Earnout Cash milestones by December 31, 2022 due to changes to the anticipated re-start date of the NRX-101 Phase III clinical trial, slower enrollment in the NIH’s ZYESAMI clinical trial, and the FDA’s November decision not to approve EUA for ZYESAMI.

Liquidity and Capital Resources

NRx Pharmaceuticals has generated no revenues, has incurred operating losses since inception, and expects to continue to incur significant operating losses for the foreseeable future and may never become profitable. Until such time as NRx Pharmaceuticals is able to establish a revenue stream from the sale of its therapeutic products, NRx Pharmaceuticals is dependent upon obtaining necessary equity and/or debt financing to continue operations. NRx Pharmaceuticals cannot make any assurances that sales of NRX-101 will commence in the near term or that additional financings will be available to it and, if available, on acceptable terms or at all. This could negatively impact NRx Pharmaceuticals' business and operations and could also lead to the reduction of NRx Pharmaceuticals' operations.

On November 4, 2022, the Company issued an 9% redeemable promissory note (the “Note”) to Streeterville Capital, LLC, a Utah limited liability company, for an aggregate principal amount of $11.0 million. The Company intends to use the proceeds from such issuance for general corporate purposes. The Note matures 18 months from the date of issuance subject to certain acceleration provisions. The Note carries an original issue discount of $1.0 million which was deducted from the principal balance of the Note. The net proceeds from the issuance of the Note was $10.0 million after transaction costs including the original issue discount, legal and other fees are included.

The Company has the option to prepay the Note during the term by paying an amount equal to 110% of the principal, interest, and fees owed as of the prepayment date. The noteholder has the right to redeem up to $1.0 million of the outstanding balance of the Note per month starting six months after the issuance date. Payments may be made by the Company at its option in: (i) in cash with a 10% premium for the amount redeemed, (ii) by paying the redemption amount in the form of shares of Common Stock with the number of redemption shares being equal to the portion of the applicable redemption amount divided by the Redemption Conversion Price (as defined below), or (iii) a combination of cash and shares of common stock. The “Redemption Conversion Price” on any given redemption date equals 85% multiplied by the average of the two lowest daily volume weighted average prices per share of the common stock during the ten trading days immediately preceding the date that the noteholder delivers notice electing to redeem a portion of the Note. Beginning May 1, 2023, in the event (a) the daily dollar trading volume of the common stock of the Company on any given trading day is at least fifty percent (50%) greater than the lower of (i) the median daily dollar trading volume over the previous ten (10) trading days or (ii) the daily dollar trading volume on the trading day immediately preceding the date of measurement or (b) if the closing trade price on any given trading day is at least thirty percent (30%) greater than the Nasdaq Minimum Price, then lender will be entitled to redeem over the following ten (10) trading days an amount of indebtedness then outstanding under the Note equal to twice (2x) the monthly redemption amount of $1.0 million solely by payment by stock, if permitted under the agreement, subject to maximum percentage (9.99%) and other ownership limitations. As of the date hereof, the Company did not meet the conditions to repay the Note by the delivery of shares of common stock.

The Company evaluated whether there are any conditions and events, considered in the aggregate, that raise substantial doubt about its ability to continue as a going concern within one year beyond the date of filing of this Annual Report on Form 10-K. We have typically funded our operating costs, acquisition activities, working capital requirements and capital expenditures with proceeds from the issuances of our common stock and other financing arrangements. If the Company is not able to make the required payments for the above Note in common stock and must use its cash for these payments, the Company believes that it does not have sufficient funds to support operations (which are subject to change) through the next year from the date the condensed consolidated financial statements are issued. The Company plans to address this matter by pursuing additional financing opportunities in 2023 to strengthen its balance sheet similar to the successful transaction completed in March 2023. In addition, as we execute our business plan over the next 12 months, we intend to carefully monitor the impact of our continuing operations on our working capital needs and cash balances relative to the availability of cost-effective debt and equity financing.

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The Company’s ongoing clinical activities continue to generate losses and net cash outflows from operations. The Company may raise substantial additional funds, and if it does so, it may do so through one or more of the following: issuance of additional debt or equity and/or the completion of a licensing or other commercial transaction for one of the Company’s product candidates. The Company cannot make any assurances that additional financing will be available to it and, if available, on acceptable terms or at all. This could negatively impact the Company’s business and operations and could also lead to a reduction in the Company’s operations.

Private Placement

On February 2, 2022, the Company completed a private placement and issued 7,824,727 shares of common stock and Preferred Investment Options to purchase up to an aggregate of 7,824,727 shares of common stock. The Preferred Investment Options have an exercise price of $3.07 per share and may be exercised any time on or after August 2, 2022.

The form of the Preferred Investment Option is a warrant. The measurement of fair value was determined utilizing a Black-Scholes model considering all relevant assumptions current at February 2, 2022, the date of issuance (i.e., share price of $2.94, exercise price of $3.07, term of five years beginning August 2, 2022, volatility of 82.8%, risk-free rate of 1.60%, and expected dividend rate of 0%). The grant date fair value of these Preferred Investment Options was estimated to be $15.5 million on February 2, 2022 and is reflected within additional paid-in capital as of December 31, 2022.

In addition, on February 2, 2022, the Company issued fully vested Preferred Investment Options to the placement agent with an exercise price of $3.99. As these Preferred Investment Options were issued for services provided in facilitating the private placement, the Company recorded the fair value of such Preferred Investment Options as a cost of capital on the issuance date. The measurement of fair value was determined utilizing a Black-Scholes model considering all relevant assumptions current at February 2, 2022, the date of issuance (i.e., share price of $2.94, exercise price of $3.99, term of five years beginning August 2, 2022, volatility of 82.8%, risk-free rate of 1.60%, and expected dividend rate of 0%).

The following table presents selected financial information and statistics for each of the periods shown below:

December 31,

Balance Sheet Data:

Earnout cash liability — 4,582

Convertible note payable 10,525 —

Total stockholders' equity 7,409 20,806

Statement of Cash Flow Data:

Net cash used in operating activities (39,755) (37,703)

Net cash used in investing activities (10) (7)

Net cash provided by financing activities 32,214 63,456

Net (decrease) increase in cash $ (7,551) $ 25,746

Operating activities

During the year ended December 31, 2022, operating activities used $39.8 million of cash, primarily resulting from a net loss of $39.8 million, increased by (a) net non-cash gains of $0.7 million, including $4.6 million for the change in fair value of earnout cash liability, (ii) $0.3 million for the change in fair value of warrant liabilities, partially offset by (i) $3.6 million of stock-based compensation expense, (ii) $0.5 million for the change in fair value of convertible promissory note, and (b) changes in operating assets and liabilities of $0.7 million.

During the year ended December 31, 2021, operating activities used $37.7 million of cash, primarily resulting from a net loss of $93.1 million, reduced by (a) non-cash charges of $60.3 million, including (i) $53.8 million of non-cash consulting

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fees paid in common stock, (ii) $21.4 million of non-cash settlement expense related to the GEM Warrant, (iii) $7.8 million of stock-based compensation expense, (iv) $20.9 million of change in fair value of Earnout Cash liability, partially offset by (i) gains from the change in fair value of warrant liability of $1.7 million, and (ii) $0.1 million in extinguishment of debt related to the PPP loan, and (b) changes in operating assets and liabilities of $4.9 million, including increases of $4.8 million and less than $0.1 million in prepaid expenses and other assets and accounts payable, respectively, partially offset by decreases of $0.9 million and $0.8 million in accrued expenses and other liabilities and accounts receivable, respectively.

Financing activities

During the year ended December 31, 2022, financing activities provided $32.2 million of cash resulting from $22.7 million in proceeds from issuance of common stock and warrants issued in private placement, net of issuance costs, $10.0 million in proceeds from convertible notes payable, net of discount and issuance costs, partially offset by $0.5 million of repayment of Relief Therapeutics loan notes payable.

During the year ended December 31, 2021, financing activities provided $63.5 million of cash, primarily resulting from $27.4 million from the issuance of shares of our common stock and warrants in private placement, $16.7 million proceeds from issuance of common stock for exercise of the GEM Warrants, $11.1 million for the effect of the Merger, PIPE financing, net of transaction costs, $9.6 million from proceeds from issuance of shares of NRx Pharmaceuticals’ common stock, partially offset by $1.1 million from repayment of notes payable assumed in the Merger, and a $0.2 million repayment of a note payable plus accrued and unpaid interest with a vendor.

Contractual Obligations and Commitments

See Note 7, Debt and Note 8, Commitments and Contingencies, of the notes to NRx Pharmaceuticals’ consolidated financial statements as of and for the year ended December 31, 2022 included elsewhere in this report for further discussion of NRx Pharmaceuticals' commitments and contingencies.

Milestone Payments

Pursuant to the legal settlement with Sarah Herzog Memorial Hospital Ezrat Nashim (“SHMH”) in September 2018, which included the license of intellectual property rights from SHMH, an ongoing royalty of 1% to 2.5% of NRX-101 gross sales is due to SHMH, together with milestone payments of $0.3 million, upon completion of phase 3 trials and commercial sale of NRX-101. The milestone payments for developmental and commercial milestones range from $0.1 million to $0.8 million. Annual maintenance fees are up to $0.2 million.

Off-Balance Sheet Arrangements

NRx Pharmaceuticals is not party to any off-balance sheet transactions. NRx Pharmaceuticals has no guarantees or obligations other than those which arise out of normal business operations.

Critical Accounting Policies and Significant Judgments and Estimates

NRx Pharmaceuticals' management’s discussion and analysis of its financial condition and results of operations is based on its financial statements, which have been prepared in accordance with GAAP. The preparation of these financial statements requires NRx Pharmaceuticals to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities as of the date of the balance sheet and the reported amounts of expenses during the reporting period. In accordance with GAAP, NRx Pharmaceuticals evaluates its estimates and judgments on an ongoing basis. The most significant estimates relate to the Earnout Cash Liability, stock-based compensation, the convertible note payable and the valuation of warrants. NRx Pharmaceuticals bases its estimates and assumptions on current facts, historical experiences, and various other factors that NRx Pharmaceuticals believes are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

NRx Pharmaceuticals defines its critical accounting policies as those accounting principles that require it to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on its financial condition

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and results of operations, as well as the specific manner in which NRx Pharmaceuticals applies those principles. While its significant accounting policies are more fully described in Note 3 to its financial statements, NRx Pharmaceuticals believes the following are the critical accounting policies used in the preparation of its financial statements that require significant estimates and judgments.

Earnout Cash Liability

The following expired as of December 31, 2022 and was unearned, prior to this the fair value of the Earnout Cash liability was estimated using probability-weighted discounted cash flow models (DCFs) with significant inputs that were not observable in the market and thus represented a Level 3 fair value measurement as defined in ASC 820. The most significant inputs included whether (a) the FDA approved the Company’s NDAs for ZYESAMI and/or NRX-101, (b) if such approval was granted, whether such approval was received on or before December 31, 2022, and (c) if such approval was granted, whether ZYESAMI and/or NRX-101 was listed in the FDA’s Orange Book on or before December 31, 2022. The DCFs incorporated Level 3 inputs including estimated discount rates that we believe market participants would consider relevant in pricing and the projected timing and amount of cash flows, which were estimated and developed in consideration of the uncertainties associated with the obligations. As (i) ZYESAMI NIH Phase III trial was stopped due to futility, and (ii) NRX-101 Phase III trial has not yet started, the Earnout period expired without achieving the milestones and therefore, the Earnout Cash liability has been relieved. Changes in the estimated fair value of the Earnout Cash Liability were recognized as gains or losses in the statements of operations.

Fair value of common and preferred stock

Prior to the Merger, in order to determine the fair value of shares of its common stock, the Company's board of directors considered, among other things, contemporaneous valuations of its common stock and preferred stock based on arms-length transactions with third party investors. Subsequent to the Merger, the Board determines the fair value of the Common Stock based on the closing market price on the date of grant.

Stock-based compensation

We measure stock option awards granted to employees and directors based on the fair value of the award on the date of the grant and recognize compensation expense of those awards over the requisite service period, which is generally the vesting period of the respective award. For restricted stock awards, the grant date fair value is the fair market value per share as of the grant date based on the closing trading price for the Company’s stock. The straight-line method of expense recognition is applied to awards with service-only conditions. We account for forfeitures as they occur.

We estimate the fair value of each stock option award using the Black-Scholes option-pricing model, which uses as inputs the fair value of our common stock and assumptions we make for the volatility of our common stock, the expected term of our stock-based awards, the risk-free interest rate for a period that approximates the expected term of our stock-based awards, and our expected dividend yield. Therefore, we estimate our expected volatility based on the implied volatility of publicly traded warrants on our common stock and historical volatility of a set of our publicly traded peer companies. We estimate the expected term of our options using the "simplified" method for awards that qualify as "plain-vanilla" options. The risk-free interest rate is determined by reference to the U.S. Treasury yield curve in effect at the time of grant of the award for time periods approximately equal to the expected term of the award. Expected dividend yield is based on the fact that we have never paid cash dividends on common stock and do not expect to pay any cash dividends in the foreseeable future.

The assumptions used in determining the fair value of stock-based awards represent reasonable estimates, but the estimates involve inherent uncertainties and the application of our judgment. As a result, if factors change and we use significantly different assumptions or estimates, our stock-based compensation expense could be materially different in the future.

Warrant liabilities

We account for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480, Distinguishing Liabilities from Equity (“ASC 480”) and

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ASC 815, Derivatives and Hedging (“ASC 815”). The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and whether the warrants meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s own common stock and whether the warrant holders could potentially require “net cash settlement” in a circumstance outside of the Company’s control, among other conditions for equity classification. This assessment, which requires the use of professional judgment, is conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the warrants are outstanding.

For issued or modified warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in capital at the time of issuance. For issued or modified warrants that do not meet all the criteria for equity classification, the warrants are required to be recorded at their initial fair value on the date of issuance, or date of modification, and each balance sheet date thereafter. Changes in the estimated fair value of the warrants are recognized as a non-cash gain or loss on the statements of operations. The fair value of the Placement Warrants was estimated using a Black Scholes valuation approach and the fair value of the Substitute Warrants was estimated using a modified Black Scholes valuation approach which applies a probability factor based on the Earnout Cash Milestone and Earnout Shares Milestone probabilities of achievement at each reporting period.

Convertible note payable

As permitted under Financial Accounting Standards Board ("FASB”) Accounting Standards Codification ("ASC”) Topic 825, Financial Instruments ("ASC 825”), the Company elects to account for its convertible promissory note, which meets the required criteria, at fair value at inception and at each subsequent reporting date. Subsequent changes in fair value are recorded as a component of non-operating loss in the consolidated statements of operations. As a result of electing the fair value option, direct costs and fees related to the convertible promissory notes are expensed as incurred.

The Company estimates the fair value of the convertible note payable using a Monte Carlo simulation model, which uses as inputs the fair value of our common stock and estimates for the equity volatility and volume volatility of our common stock, the time to expiration of the convertible note, the risk-free interest rate for a period that approximates the time to expiration, and probability of default. Therefore, we estimate our expected future volatility based on the actual volatility of our common stock and historical volatility of our common stock utilizing a lookback period consistent with the time to expiration. The time to expiration is based on the contractual maturity date, giving consideration to the mandatory and potential accelerated redemptions beginning six months from the issuance date. The risk-free interest rate is determined by reference to the U.S. Treasury yield curve in effect at the time of measurement for time periods approximately equal to the time to expiration. Probability of default is estimated using Bloomberg's Default Risk function which uses our financial information to calculate a default risk specific to the Company.

The assumptions used in determining the fair value of the convertible note payable represent reasonable estimates, but the estimates involve inherent uncertainties and the application of our judgment. As a result, if factors change and we use significantly different assumptions or estimates, the change in fair value of the convertible note payable recorded to other (income) expense could be materially different in the future.

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Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

Not applicable.

Item 8. Financial Statements and Supplementary Data

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Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

NRX Pharmaceuticals, Inc.:

Opinion on theConsolidated Financial Statements

We have audited the accompanying consolidated balance sheets of NRX Pharmaceuticals, Inc. and subsidiaries (the Company) as of December 31, 2022 and 2021, the related consolidated statements of operations, stockholders’ equity, and cash flows for the years then ended, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for the years then ended, in conformity with U.S. generally accepted accounting principles.

Going Concern

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 2 to the consolidated financial statements, the Company has suffered recurring losses and net cash outflows from operations that raise substantial doubt about its ability to continue as a going concern. Management’s plans in regard to these matters are also described in Note 2. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Assessment of the fair value of the convertible note

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As discussed in Notes 7 and 11 to the consolidated financial statements, the Company completed a convertible note offering during the year ended December 31, 2022. The Company received net proceeds of $10.0 million from the offering and elected to account for this convertible note at fair value under the fair value option. The estimated fair value of the convertible note as of December 31, 2022 is $10.5 million. The Company used a Monte Carlo simulation model to estimate the fair value of the convertible note.

We identified the assessment of the measurement of fair value of the convertible note as of December 31, 2022 as a critical audit matter. This matter required the involvement of valuation professionals with specialized skills and knowledge to assess the Company’s model used to value the convertible note.

The following is the primary procedure we performed to address this critical audit matter. We involved valuation professionals with specialized skills and knowledge who assisted by independently developing a range of fair values of the convertible note using a discounted cash flow model and comparing it to the amount recorded by the Company.

/s/ KPMG LLP

We have served as the Company’s auditor since 2018.

Short Hills, New Jersey

March 31, 2023

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NRX PHARMACEUTICALS, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, except share and per share data)

December 31,

ASSETS

Current assets:

Prepaid expenses and other current assets 5,741 5,109

Other assets 21 15

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current liabilities:

Accrued and other current liabilities 4,855 2,375

Accrued clinical site costs 914 469

Earnout Cash liability — 4,582

Convertible note payable and accrued interest - short term 7,703 —

Warrant liabilities 37 292

Note payable and accrued interest — 518

Convertible note payable and accrued interest - long term 2,822 —

Total liabilities and stockholders' equity $ 25,816 $ 32,729

The accompanying notes are an integral part of these consolidated financial statements.

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NRX PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except share and per share data)

Year ended

December 31,

Operating expenses:

Settlement expense — 21,366

Reimbursement of expenses from Relief Therapeutics — (771)

Other (income) expenses:

Gain on extinguishment of debt — (121)

Interest income (249) —

Interest expense — 18

Change in fair value of convertible note payable 505 —

Change in fair value of warrant liabilities (255) (1,692)

Change in fair value of Earnout Cash liability (4,582) (20,938)

Total other (income) expenses (4,581) (22,733)

Provision for income taxes — —

Deemed dividend — (255,822)

Net loss attributable to common stockholders $ (39,754) $ (348,885)

Net loss per share:

Net loss per share attributable to common stockholders:

Weighted average common shares outstanding:

The accompanying notes are an integral part of these consolidated financial statements.

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NRX PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(in thousands, except share data)

Additional Total

Common Stock Paid-in- Accumulated Stockholders’

Shares Amount Capital Deficit Equity

Common stock issued for advisor services 200,000 — 4,850 — 4,850

Modification of warrants pursuant to Merger — — 2,330 — 2,330

Stock-based compensation — — 4,440 — 4,440

Common stock issued for consulting services 6,037 — 17 — 17

Restricted stock awards granted 1,000,000 1 (1) — —

Retired Earnout Shares (1,247,930) (1) 1 — —

Stock-based compensation — — 3,628 — 3,628

The accompanying notes are an integral part of these consolidated financial statements.

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NRX PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

Years Ended December 31,

CASH FLOWS FROM OPERATING ACTIVITIES:

Depreciation expense 4 2

Gain on extinguishment of debt — (121)

Change in fair value of warrant liabilities (255) (1,692)

Change in fair value of earnout cash liability (4,582) (20,938)

Change in fair value of convertible promissory note 505 —

Non-cash interest expense — 19

Non-cash settlement expense — 21,366

Non-cash consulting expense — 53,837

Changes in operating assets and liabilities:

Account receivable — 831

Prepaid expenses and other assets (632) (4,809)

Accounts payable (1,611) (19)

Accrued expenses and other liabilities 2,942 (901)

Net cash used in operating activities (39,755) (37,703)

CASH FLOWS FROM INVESTING ACTIVITIES

Purchase of computer equipment (10) (7)

Net cash used in investing activities (10) (7)

CASH FLOWS FROM FINANCING ACTIVITIES

Proceeds from convertible notes payable, net of discount 10,020 —

Proceeds from stock option exercise 10

Proceeds from issuance of common stock for exercise of warrant — 16,699

Effect of Merger, net of transaction costs — 11,050

Repayment of note payable (518) —

Repayment of notes payable assumed in Merger — (1,100)

Repayment of notes payable - related party — (176)

Net cash provided by financing activities 32,214 63,456

Net (decrease) increase in cash and cash equivalents (7,551) 25,746

Cash and cash equivalents at beginning of period 27,605 1,859

Cash and cash equivalents at end of period $ 20,054 $ 27,605

Supplemental disclosure of cash flow information:

Non-cash investing and financing activities

Issuance of common stock warrants as offering costs $ 726 $ 1,027

Extinguishment of Paycheck Protection Program Loan $ — $ 121

Issuance of common stock for consulting services $ 17 $ —

The accompanying notes are an integral part of these consolidated financial statements.

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1. Organization

The Business

On May 24, 2021 (“Effective Time”), we consummated the business combination (“Merger”) contemplated by the Agreement and Plan of Merger (as amended, the “Merger Agreement”), dated December 13, 2020, by and among our company (formerly known as Big Rock Partners Acquisition Corp. (“BRPA”)), NeuroRx, Inc., a Delaware corporation (“NeuroRx”), Big Rock Merger Corp., a Delaware corporation and wholly-owned, direct subsidiary of BRPA (“Merger Sub”), pursuant to which Merger Sub was merged with and into NeuroRx, with NeuroRx surviving the Merger. As a result of the Merger, and upon consummation of the Merger and other transactions contemplated by the Merger Agreement, NeuroRx became a wholly-owned, direct subsidiary of BRPA. Upon the closing of the Merger, we changed our name to NRX Pharmaceuticals, Inc., with the stockholders of NeuroRx becoming stockholders of NRX Pharmaceuticals, Inc. Unless the context suggests otherwise, references to “NRx Pharmaceuticals,” “NeuroRx”, “NRXP,” “we,” or the “Company” refer to NRX Pharmaceuticals, Inc. and, where appropriate, its subsidiaries.

The Company is a clinical-stage pharmaceutical company which applies innovative science to known molecules to develop life-saving medicines through its wholly-owned operating subsidiary, NeuroRx. The Company's foundation product, NRX-101 (D-cylcoserine/Lurasidone), for the treatment of bipolar depression in patients with suicidality, has been awarded Fast Track designation, Breakthrough Therapy designation, a Special Protocol Agreement, and a Biomarker Letter of Support by the U.S. Food and Drug Administration (the “FDA”). NRX-101 is covered by multiple U.S. and foreign patents, including a Composition of Matter patent (U.S. Patent No. 10,583,138) that was transferred to NRx Pharmaceuticals by Glytech, LLC.

2. Liquidity

As of December 31, 2022, the Company had $20.1 million in cash. Since inception, the Company has experienced net losses and negative cash flows from operations each fiscal year. The Company has no revenues and expects to continue to incur operating losses for the foreseeable future and may never become profitable. The Company is dependent on its ability to continue to raise equity and/or debt financing to continue operations.

On February 2, 2022, the Company completed a private placement and issued 7,824,727 shares of common stock and preferred investment options to purchase up to an aggregate of 7,824,727 shares of common stock. The purchase price for one share of common stock and one preferred investment option was $3.195. The preferred investment options have an exercise price of $3.07 per share. The aggregate gross proceeds to the Company were approximately $25.0 million, before deducting placement agent fees and other offering expenses.

On November 4, 2022, the Company entered into a Securities Purchase Agreement (“SPA”) with Streeterville Capital, LLC, a Utah limited liability company (“Lender”), and, pursuant to the SPA, issued to the Lender an unsecured promissory note with a face amount of approximately $11.0 million (the “Note”) before an original issue discount of $1.0 million, which was deducted from the proceeds of the Note.

The Note carries a 9% interest rate, has a term of 18 months from the issuance date (the “Maturity Date”) and is redeemable as described below. Any time after the issuance date, the Company has the right to prepay all or any portion of the outstanding balance of the Note. If the Company exercises its right to prepay the Note, the Company will make payment to the Lender of an amount in cash equal to 110% multiplied by the portion of the outstanding balance the Company elects to pay. Beginning on the date that is six (6) months after the issuance date of the applicable Note, the Lender has the right to redeem up to $1.0 million (“Maximum Monthly Redemption Amount”) of the outstanding balance of such Note per month. Payments may be made by the Company, at the Company’s option, (a) in cash with a 10% premium for the amount redeemed, (b) by paying the redemption amount in the form of shares of Common Stock with the number of redemption shares being equal to the portion of the applicable redemption amount divided by the Redemption Conversion Price or (c) a combination of cash and shares of Common Stock. The “Redemption Conversion Price” shall equal 85% multiplied by the average of the two lowest daily volume weighted average prices per share of the Common Stock during the 15 trading days immediately preceding the date that the Lender delivers notice electing to redeem a portion of the Note. The Company’s right to satisfy the redemption amount in shares of Common Stock is subject to certain limitations, including

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(i) there not being any Equity Conditions Failure (as defined in the Note) and (ii) the Lender not owning more than 9.99% of the outstanding shares of Common Stock. If the Company elects to prepay the Note prior to the Maturity Date or elects to pay a portion or all of the Maximum Monthly Redemption Amount in cash, it must pay a premium of 10%, subject to certain exceptions. As of the date hereof, the Company did not meet the conditions to repay the Note by the delivery of shares of common stock.

The Company has the right to make the required payments for the above Note in common stock subject to certain conditions including ownership and trading volume limitations. If the Company is not able to make the required payments for the above Note in common stock and must use cash for these payments, management believes that the Company does not have sufficient liquidity to support operations, which are subject to change.

On March 8, 2023, NRx Pharmaceuticals entered into a securities purchase agreement (the “Securities Purchase Agreement”) with accredited investors (the “Investors”), providing for the issuance and sale of 3,866,666 shares of the Company’s common stock (“Common Stock”) and warrants to purchase up to 3,866,666 shares of Common Stock (the “Investor Warrants”) in a registered direct offering priced at-the-market under Nasdaq rules for a purchase price of $0.75 per share (the “Offering”). The Investors have agreed not to transfer the Common Stock for six months following the date hereof. The Investor Warrants will have an exercise price of $0.75 per share, will be initially exercisable beginning six months following the date of issuance (the “Initial Exercise Date”) and will expire 5 years from the Initial Exercise Date. The aggregate gross proceeds to the Company from the Offering are expected to be approximately $2.9 million. The Company intends to use the net proceeds from such offering for working capital and general corporate purposes. The closing of the sale of these securities occurred on March 9, 2023.

The Company plans to pursue additional financing opportunities in 2023 to strengthen its balance sheet similar to the transaction completed in March 2023. In addition, as we execute our business plan over the next 12 months, we will continue to carefully monitor the impact of our continuing operations on our working capital needs and cash balances relative to the availability of cost-effective debt and equity financing.

The Company’s ongoing clinical activities continue to generate losses and net cash outflows from operations. The Company may raise substantial additional funds, and if it does so, it may do so through one or more of the following: issuance of additional debt or equity and/or the completion of a licensing or other commercial transaction for one of the Company’s product candidates. The Company cannot make any assurances that additional financing will be available to it and, if available, on acceptable terms or at all which could negatively impact the Company’s business and operations and could also lead to a reduction in the Company’s operations.

As such, the Company has concluded that substantial doubt exists about the Company’s ability to continue as a going concern for a period of at least twelve months from the date of issuance of these consolidated financial statements.

The accompanying financial statements have been prepared on a going concern basis, which contemplates the realization of assets and satisfaction of liabilities in the ordinary course of business. The financial statements do not include any adjustments relating to the recoverability and classification of recorded asset amounts or the amounts and classification of liabilities that may be necessary if the Company is unable to continue as a going concern.

3. Summary of Significant Accounting Policies

Basis of Presentation

The Company’s financial statements have been prepared in conformity with generally accepted accounting principles in the United States of America (“GAAP”) as determined by Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”).

The Merger was accounted for as a reverse recapitalization in accordance with GAAP (the “Reverse Recapitalization”). Under this method of accounting, BRPA is treated as the “acquired” company and NeuroRx is treated as the acquirer for financial reporting purposes.

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Accordingly, for accounting purposes, the Reverse Recapitalization was treated as the equivalent of NeuroRx issuing stock for the net assets of BRPA, accompanied by a recapitalization. The net assets of BRPA are stated at historical cost, with no goodwill or other intangible assets recorded.

NeuroRx was determined to be the accounting acquirer based on the following predominant factors:

The consolidated results of operations prior to the Reverse Recapitalization are those of NeuroRx. The shares and corresponding capital amounts and losses per share, prior to the Merger, have been retroactively restated based on shares reflecting the exchange ratio established in the Merger.

Use of Estimates

The preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and expenses and the disclosure of contingent assets and liabilities in its financial statements and the reported amounts of expenses during the reporting period. The most significant estimates in the Company’s financial statements relate to the convertible note payable, Earnout Cash liability, valuation of common and preferred stock, stock options, warrants, and the valuation allowance of deferred tax assets resulting from net operating losses. These estimates and assumptions are based on current facts, historical experience and various other factors believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities and the recording of expenses that are not readily apparent from other sources. Actual results may differ materially and adversely from these estimates. To the extent there are material differences between the estimates and actual results, the Company’s future results of operations will be affected.

Certain Risks and Uncertainties

The Company’s activities are subject to significant risks and uncertainties including the risk of failure to secure additional funding to properly execute the Company’s business plan. The Company is subject to risks that are common to companies in the pharmaceutical industry, including, but not limited to, development by the Company or its competitors of new technological innovations, dependence on key personnel, reliance on third party manufacturers, protection of proprietary technology, and compliance with regulatory requirements.

Fair Value of Financial Instruments

ASC 820, Fair Value Measurements, provides guidance on the development and disclosure of fair value measurements. Under this accounting guidance, fair value is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability.

The accounting guidance classifies fair value measurements in one of the following three categories for disclosure purposes:

Level 1: Quoted prices in active markets for identical assets or liabilities.

Level 2: Inputs other than Level 1 prices for similar assets or liabilities that are directly or indirectly observable in the marketplace.

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Level 3: Unobservable inputs which are supported by little or no market activity and values determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant judgment or estimation. (Refer to Note 11)

Concentration of Credit Risk and Off-Balance Sheet Risk

Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash and cash equivalents. Cash equivalents are occasionally invested in certificates of deposit. The Company maintains each of its cash balances with high-quality and accredited financial institutions and accordingly, such funds are not exposed to unusual credit risk beyond the normal credit risk associated with commercial banking relationships. The Company maintains a portion of its cash and cash equivalent balances in the form of a money market account with a financial institution that management believes to be creditworthy.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original maturity of three months or less at the time of initial purchase to be cash equivalents, including balances held in the Company’s money market accounts. The Company maintains its cash and cash equivalents with financial institutions, in which balances from time to time may exceed the U.S. federally insured limits. The objectives of the Company’s cash management policy are to safeguard and preserve funds to maintain liquidity sufficient to meet the Company’s cash flow requirements, and to attain a market rate of return.

Research and Development Costs

The Company’s research and development expenses consist primarily of costs associated with the Company’s clinical trials, salaries, payroll taxes, employee benefits, and stock-based compensation charges for those individuals involved in ongoing research and development efforts. Research and development costs are expensed as incurred. Advance payments for goods and services that will be used in future research and development activities are expensed when the activity has been performed or when the goods have been received.

Convertible Note Payable

Stock-Based Compensation

The Company expenses stock-based compensation to employees and non-employees over the requisite service period based on the estimated grant-date fair value of the awards. The Company accounts for forfeitures as they occur. Stock-based awards with graded-vesting schedules are recognized on a straight-line basis over the requisite service period for each separately vesting portion of the award. The Company estimates the fair value of stock option grants using the Black-

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Scholes option pricing model, and the assumptions used in calculating the fair value of stock-based awards represent management’s best estimates and involve inherent uncertainties and the application of management’s judgment. All stock-based compensation costs are recorded in general and administrative or research and development costs in the consolidated statements of operations based upon the underlying individual’s role at the Company.

Modification of stock options and warrants

A change in any of the terms or conditions of stock options and warrants is accounted for as a modification. For a Type 1 (probable-to-probable) modification, incremental stock-based compensation cost is measured as the excess, if any, of the fair value of the modified option/warrant over the fair value of the original option/warrant immediately before its terms are modified, measured based on the fair value of the shares and other pertinent factors at the modification date. For vested stock options and warrants to board members, we recognize incremental compensation cost in the period the modification occurs. For unvested stock options, we recognize over the remaining requisite service period, the sum of the incremental compensation cost and the remaining unrecognized compensation cost for the original award on the modification date. If the fair value of the modified option is lower than the fair value of the original option immediately before modification, the minimum compensation cost we recognize is the cost of the original award. The accounting for incremental fair value of warrants is based on the specific facts and circumstances related to the modification which may result in a reduction of additional paid-in capital, recognition of costs for services rendered, or recognized as a deemed dividend.

Warrants

The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480, Distinguishing Liabilities from Equity (“ASC 480”) and ASC 815, Derivatives and Hedging (“ASC 815”). The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and whether the warrants meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s own common stock and whether the warrant holders could potentially require “net cash settlement” in a circumstance outside of the Company’s control, among other conditions for equity classification. This assessment, which requires the use of professional judgment, is conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the warrants are outstanding.

For issued or modified warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in capital at the time of issuance. For issued or modified warrants that do not meet all the criteria for equity classification, the warrants are required to be liability classified and recorded at their initial fair value on the date of issuance and remeasured at fair value and each balance sheet date thereafter. Changes in the estimated fair value of the warrants are recognized as a non-cash gain or loss on the statements of operations. The fair value of the Placement Warrants was estimated using a Black Scholes valuation approach and the fair value of the Substitute Warrants was estimated using a modified Black Scholes valuation approach which applies a probability factor based on the probabilities of achieving Earnout Cash Milestone and/or Earnout Shares Milestone at each reporting period (see Notes 9 and 11).

Income Taxes

Income taxes are recorded in accordance with ASC 740, Income Taxes (“ASC 740”), which provides for deferred taxes using an asset and liability approach. The Company recognizes deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements or tax returns. Deferred tax assets and liabilities are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Valuation allowances are provided, if based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The Company accounts for uncertain tax positions in accordance with the provisions of ASC 740. When uncertain tax positions exist, the Company recognizes the tax benefit of tax positions to the extent that the benefit would more likely than not be realized assuming examination by the taxing authority. The determination as to whether the tax benefit will more likely than not be realized is based upon the technical merits of the tax position as well

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as consideration of the available facts and circumstances. The Company recognizes any interest and penalties accrued related to unrecognized tax benefits as income tax expense.

Loss Per Share

Basic loss per share of common stock is computed by dividing net loss attributable to common stockholders by the weighted average number of shares of common stock outstanding for the period. Diluted earnings per share excludes, when applicable, the potential impact of stock options, common stock warrant shares, convertible notes, and other dilutive instruments because their effect would be anti-dilutive in the periods in which the Company incurs a net loss.

The following outstanding shares of common stock equivalents were excluded from the computation of the diluted net loss per share attributable to common stock for the periods in which a net loss is presented because their effect would have been anti-dilutive.

December 31,

Restricted stock awards 1,000,000 —

Recent Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the FASB or other standard setting bodies and are adopted by the Company as of the specified effective date. For the year ended December 31, 2022, there were no new accounting pronouncements that management believes materially affect the Company’s present or future results of operations, overall financial condition, liquidity or disclosures.

4. Reverse Recapitalization

As discussed in Note 1, on May 24, 2021 (the “Closing Date”), BRPA closed the Merger with NeuroRx, as a result of which NeuroRx became a wholly-owned subsidiary of BRPA. While BRPA was the legal acquirer of NeuroRx in the Merger, for accounting purposes, the Merger is treated as a Reverse Recapitalization, whereby NeuroRx is deemed to be the accounting acquirer, and the historical financial statements of NeuroRx became the historical financial statements of BRPA (renamed NRX Pharmaceuticals, Inc.) upon the closing of the Merger. Under this method of accounting, BRPA is treated as the “acquired” company and NeuroRx is treated as the acquirer for financial reporting purposes. Accordingly, for accounting purposes, the Merger was treated as the equivalent of NeuroRx issuing stock for the net assets of BRPA, accompanied by a recapitalization. The net assets of BRPA were stated at historical cost, with no goodwill or other intangible assets recorded.

Pursuant to the Merger Agreement, the aggregate consideration payable to stockholders of NeuroRx at the Closing Date consists of 50,000,000 shares (“Closing Consideration”) of BRPA common stock, par value $0.001 per share (“Common Stock”). At the effective time of the Merger (the “Effective Time”), and subject to the terms and conditions of the Merger Agreement, each share of NeuroRx common stock, par value $0.001 per share, and each share of the NeuroRx convertible preferred stock that was convertible into a share of NeuroRx common stock at a one-to-one ratio pursuant to the NeuroRx certificate of incorporation, was converted into Common Stock equal to 3.16 (the “Exchange Ratio”).

In addition, the stockholders of NeuroRx who owned NeuroRx securities immediately prior to the Effective Time received the contingent right to receive the Earnout Shares and Earnout Cash (each as defined below). At the Effective Time, each outstanding share of NeuroRx common stock, including shares of NeuroRx common stock resulting from the conversion of outstanding shares of NeuroRx preferred stock was converted into the right to receive a pro rata portion of the contingent

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right to receive a pro rata portion of the Earnout Shares and Earnout Cash after consideration of the Substitute Options and Substitute Warrants (as further discussed below).

Pursuant to the terms of the Merger Agreement, NeuroRx’s stockholders who owned NeuroRx securities immediately prior to the Effective Time had the contingent right to receive their pro rata portion of (i) an aggregate of 25,000,000 shares of Common Stock (“Earnout Shares”), less 935,608 and 1,920,492, respectively, which are subject to the terms and conditions of the Substitute Options and Substitute Warrants, (each defined below) if, prior to December 31, 2022, the NRX COVID-19 Drug (as defined in the Merger Agreement) receives emergency use authorization by the FDA and NeuroRx submits and the FDA files for review a new drug application for the NRX COVID-19 Drug (the occurrence of the foregoing, the “Earnout Shares Milestone”), and (ii) an aggregate of $100.0 million in cash (“Earnout Cash”) upon the earlier to occur of (x) FDA approval of the NRX COVID-19 Drug and the listing of the NRX COVID-19 Drug in the FDA’s “Orange Book” and (y) FDA approval of the NeuroRx Antidepressant Drug Regimen (i.e., NRX-100/101) and the listing of the NeuroRx Antidepressant Drug Regimen (i.e., NRX-100/101) in the FDA’s “Orange Book,” in each case prior to December 31, 2022 (the occurrence of either of clauses (x) or (y), the “Earnout Cash Milestone”). The Earnout Cash Milestone was recognized as a deemed dividend at the Closing Date and a contingent liability measured at its estimated fair value at the Closing Date and was remeasured at fair value each period end thereafter until December 31, 2022 (see Note 11). The Earnout Shares Milestone was recognized as a deemed dividend at the Closing Date and was classified within equity (see Note 11). The benefit of the contingent right to receive Earnout Shares and Earnout Cash for option and warrant holders occurs through the Option Exchange Ratio (as defined below) and therefore the amount of Earnout Shares and Earnout Cash for common stockholders is approximately 22,209,280 shares and $88.8 million, respectively. As of December 31, 2022, the Earnout Shares Milestone and Earnout Cash Milestone were not achieved, and the Earnout Cash liability was relieved and the Earnout Shares issued under stock options, warrants, and restricted common stock for stock option exercises were cancelled.

Each option and warrant of NeuroRx that was outstanding and unexercised immediately prior to the Effective Time (whether vested or unvested) was assumed by BRPA and converted into an option or warrant to acquire an adjusted number of shares of Common Stock at an adjusted exercise price per share, in each case, pursuant to the terms of the Merger Agreement (the “Substitute Options” and the “Substitute Warrants,” respectively), based on an exchange ratio of 4.96:1 (the “Option Exchange Ratio”), and would continue to be governed by substantially the same terms and conditions, including vesting, as were applicable to the original instruments.

As neither the Earnout Shares Milestone nor the Earnout Cash Milestone occurred, each Substitute Option and Substitute Warrant was adjusted based on the Exchange Ratio. For the Substitute Options and Substitute Warrants that were exercised prior to December 31, 2022, NRx Pharmaceuticals retained any shares forfeited by the option or warrant holders in connection with the adjustment.

In connection with the Merger, a number of subscribers (each, a “Subscriber”) purchased from the Company an aggregate of 1,000,000 shares of Common Stock (the “PIPE”), for a purchase price of $10.00 per share and an aggregate purchase price of $10.0 million (the “PIPE Shares”), pursuant to separate subscription agreements (each, a “Subscription Agreement”) entered into prior to the Closing Date.

The following table reconciles the elements of the Merger to the Consolidated Statement of Cash Flows for the year ended December 31, 2021 (in thousands):

Recapitalization

Cash - BRPA trust and cash, net of redemptions $ 4,363

Cash - PIPE financing, net of transaction costs 8,100

Less: transaction costs and advisory fees allocated to NRXP equity (1,413)

Effect of Merger, net of redemptions and transaction costs $ 11,050

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The following table reconciles the elements of the Merger to the Consolidated Statements of Changes in Stockholders' Equity (Deficit) for the year ended December 31, 2021 (in thousands):

Recapitalization

Cash - BRPA trust and cash, net of redemptions $ 4,363

Non-cash net working capital assumed from BRPA (962)

Less: notes payable assumed from BRPA (1,100)

Less: fair value of assumed Placement Warrants (1,984)

Less: fair value of Earnout Cash (25,520)

Less: transaction costs and advisory fees allocated to NRXP equity (1,413)

Effect of Merger, net of redemptions and transaction costs $ (26,616)

The following table details the number of shares of common stock issued immediately following the consummation of the Merger:

Number of Shares

Common stock, outstanding prior to Merger 552,412

Less: redemption of BRPA shares (216)

BRPA Founder and private shares, net of forfeited shares of 875,216 1,260,284

Shares issued in PIPE Financing 1,000,000

Shares issued for services 200,000

Shares issued pursuant to conversion of Public and Private Rights 717,250

Merger and PIPE financing shares - common stock 3,729,730

Total shares of common stock immediately after Merger 48,603,585

5.Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following at the dates indicated (in thousands):

December 31,

Prepaid expenses and other current assets:

Prepaid clinical development expenses 1,966 512

Other prepaid expenses 331 345

Prepaid legal expenses 270 —

Other current receivables 7 —

Prepaid manufacturing expenses — 1,028

Total prepaid expenses and other current assets $ 5,741 $ 5,109

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6. Accrued and Other Current Liabilities

Accrued and other current liabilities consisted of the following at the dates indicated (in thousands):

December 31,

Accrued and other current liabilities:

Other accrued expenses $ 2,616 $ 121

Accrued research and development expenses 974 1,055

Accrued employee expenses 923 $ 456

Professional services 342 743

Total accrued and other current liabilities $ 4,855 $ 2,375

7. Debt

Relief Therapeutics Loan

On April 6, 2020, the Company entered into a loan agreement (the “Relief Therapeutics Loan”) with Relief Therapeutics Holding S.A. (“Relief Therapeutics”) in the amount of $0.5 million. The Relief Therapeutics Loan matured on April 6, 2022 and was bearing interest at 2% per annum payable in arrears. The Relief Therapeutics Loan principal and accrued interest were paid in full on April 6, 2022 in the amount of $0.5 million and less than $0.1 million, respectively.

Convertible Note

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Beginning May 1, 2023, in the event (a) the daily dollar trading volume of the Common Stock of the Company on any given trading day is at least fifty percent (50%) greater than the lower of (i) the median daily dollar trading volume over the previous ten (10) trading days or (ii) the daily dollar trading volume on the trading day immediately preceding the date of measurement or (b) if the closing trade price on any given trading day is at least thirty percent (30%) greater than the Nasdaq Minimum Price (as defined in the Note), then the Lender will be entitled to redeem over the following ten (10) trading days an amount of indebtedness then outstanding under the Note equal to twice (2x) the monthly redemption amount of $1.0 million solely by payment by Common Stock, subject to maximum percentage (4.99%) and other ownership limitations under the SPA and the Note.

The Note contains certain Trigger Events (as defined in the Note) that generally, if uncured within five (5) trading days, may result in an event of default in accordance with the terms of the Notes (such event, an “Event of Default”). Upon an Event of a Default, the Lender may consider the Note immediately due and payable. Upon an Event of Default, the interest rate may also be increased to the lesser of 18% per annum or the maximum rate permitted under applicable law.

Due to these embedded features within the Note, the Company elected to account for the Note at fair value at inception. Subsequent changes in fair value are recorded as a component of other income (loss) in the Consolidated Statements of Operations.

The discount to the principal amount is included in the carrying value of the Note. During 2022, the Company recorded a debt discount of approximately $1.0 million upon issuance of the Note for the original issue discount of $1.0 million. As a result of electing the fair value option, any direct costs and fees related to the Note was expensed as incurred. For the year ended December 31, 2022, the Company recorded a change in fair value of approximately $0.5 million related to the change in fair value of the Note which was recognized in other income (expense) on the Consolidated Statement of Operations as a result of the Company’s election of the fair value option.

The following table presents the Note as of December 31, 2022:

Par value of the Note $ 11,020

Debt discount, net (1,000)

Carrying value of the Note 10,020

Change in fair value of Note 505

Total carrying value of Note $ 10,525

Convertible note payable - current portion $ 7,703

Convertible note payable, net of current portion $ 2,822

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8. Commitments and Contingencies

Operating Lease

The Company leases office space on a month-to-month basis. The rent expense for the years December 31, 2022 and 2021 was $0.1 million and $0.1 million, respectively.

Sponsored Research Agreement with National Jewish Health

On February 8, 2021, the Company entered into a Sponsored Research Agreement (“Research Agreement”) with National Jewish Health (“NJ Health”), a Colorado not-for-profit institution. Under the terms of the Research Agreement, the Company agreed to sponsor a research study at NJ Health relating to the impact of the Company’s' Aviptadil on propagation of SARS-CoV-2 in alveolar type II cells in vitro (the “Study”). In return for performance of the Study under the Research Agreement, the Company has committed to pay NJ Health approximately $0.4 million upon finalization of the work. As of December 31, 2022, the Company has paid NJ Health the total committed amount.

Relief Therapeutics Collaboration Agreement

On September 18, 2020, the Company entered into a collaboration agreement (the “Collaboration Agreement”) with Relief Therapeutics for the clinical development and, if approved, the sale of Aviptadil. The Collaboration Agreement provides for funding by Relief Therapeutics of certain clinical trials, formulation and manufacturing of Aviptadil, as well as establishing specified sales territories for each party and share of the profits in those territories for “Product” as defined in the Collaboration Agreement. On October 6, 2021, Relief Therapeutics filed a lawsuit against the Company and its former CEO claiming that the Company failed to honor its obligations under the Collaboration Agreement, which was followed by a counter claim from the Company for breach and repudiation of the Collaboration Agreement by Relief Therapeutics.

On November 12, 2022, NRx Pharmaceuticals, Inc. (“NRx” or the “Company”) entered into a Settlement Agreement and Asset Purchase Agreement (“APA”) with Relief Therapeutics Holding AG and Relief Therapeutics International (the “Relief Parties”) to settle the outstanding lawsuit with respect to the Collaboration Agreement.

Under the APA, the Company transferred to the Relief Parties all of the Company’s interest in ZYESAMI (or the “Product” as such term is defined in the Collaboration Agreement), including intellectual property, FDA applications, clinical trial data, drug and API inventory and certain contractual rights. The Company has agreed to refrain from developing any product for any indication that uses or otherwise exploits the Product without the Relief Parties’ consent.

The Relief Parties have agreed to use commercially reasonable efforts to develop, market, and commercialize the Product, but has sole discretion to select the indications for which it will seek to develop the Product. Although the Company intends to monitor the progress of the Relief Parties under the APA and enforce the Company’s rights thereunder, there can be no assurances that the Relief Parties will be successful at commercializing the Product.

Upon commercial launch of the Product by the Relief Parties or any of their affiliates, licensees or sublicensees (or upon authorization of use for any indication of the Product other than COVID-19), the Company is entitled to receive milestone payments in stages up to an aggregate amount of $13.0 million. The Relief Parties have also agreed to pay royalties to NRx on aggregate net sales of all Products, subject to a cap on royalty payments of $30.0 million in the aggregate. In addition, Relief is obligated to use commercially reasonable efforts to continue NRx’s existing Right to Try Program for at least two (2) years after the closing of the APA.

Mutual indemnity provisions in the APA will protect each party from any breaches of the settlement arrangements by the other party, provided, that the Company’s indemnity obligations will not start until the Relief Parties have begun making royalty or milestone payments to NRx, subject to certain exceptions. With respect to the Company, there is an indemnity threshold such that the Company will not be liable for any indemnity claims until such claims are in excess of $0.5 million (and then only for the amount above $0.5 million). The Company’s indemnity obligation is capped at $2.0 million with respect to breaches of representations and warranties and $3.0 million with respects to breaches of covenants or other

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agreements. Additionally, subject to certain exceptions, the Company’s indemnity obligations cannot exceed the amount that the Relief Parties actually pay to the Company for milestone and royalty payments. The parties have 30 days to implement the agreed actions and achieve closing under the APA, at which time all claims and counterclaims between the Company and the Relief Parties will be dismissed with prejudice.

Legal Proceedings

From time to time the Company is involved in litigation, claims, and other proceedings arising in the ordinary course of business. Litigation and other disputes are inherently unpredictable and subject to substantial uncertainties and unfavorable resolutions could occur.

Share Subscription Facility Agreement - GEM

NeuroRx entered into a share subscription facility agreement (“GEM Agreement”) with GEM Global Yield LLC SCS and GEM Yield Bahamas Limited (collectively, referred to as “GEM”) with a three-year term which expired in October 2022. Subject to the successful listing of the shares of NeuroRx on an Exchange (any nationally recognized stock exchange or exchange platform in the world on which the Company will list its shares), GEM grants NeuroRx an option to require GEM to subscribe for shares from the Company for up to an aggregate value of approximately $95.6 million. The agreement also included certain provisions which would not meet the U.S. requirements to issue registered shares thus preventing its usage. If NeuroRx was listed or completes a private transaction which results in a change of control of the Company, NeuroRx would issue GEM a warrant and pay a commitment fee of $1.9 million. Absent a listing of NeuroRx shares or a private transaction with a change of control during the three-year term, NeuroRx would have no obligations under the agreement. The reverse merger contemplated by the Merger Agreement would not have resulted in a listing of NeuroRx shares or a change in control.

In November 2020, GEM introduced NeuroRx to BRPA. To resolve uncertainties around the application of the GEM Agreement post-Merger, NeuroRx and GEM agreed in March 2021 to issue a warrant to GEM and for the parties to use their good faith efforts to amend the GEM Agreement to meet U.S. requirements to issue registered shares. The warrant was not conditional upon any further events or completion of the merger.

The warrant was issued March 28, 2021, for 3,329,812 shares of NeuroRx common stock at an exercise price of $3.19 per share (the “GEM Warrant”) and the parties agreed that GEM would immediately partially exercise the warrant for the purchase of 1,496,216 shares (“Initial Exercised Shares”) for $7.5 million. The GEM Warrant will be valid for a period of three years from the date NeuroRx’s stock is listed for trading on a national securities exchange or consummation of a reverse merger transaction of the type contemplated by the Merger Agreement.

As of December 31, 2020, the Company recognized a contingent liability for its obligation to issue to GEM certain equity instruments at a discounted per share price. Specifically, as the amount was deemed probable and estimable at December 31, 2020, NeuroRx recorded a liability and settlement expense of $39.5 million to reflect the fair value of the expected GEM Warrant to be issued. On March 28, 2021, when the GEM Warrant was issued, the Company recorded an additional charge of $21.4 million to reflect the increased fair value of the GEM Warrant on its grant date. Upon issuance, the GEM Warrant was equity classified and was determined to be within the scope of ASC 718, Share-Based Payments (“ASC 718”).

The GEM Warrants that were not exercised as of the Merger were modified and became Substitute Warrants 1,833,596 shares, adjusted for the Merger as discussed in Note 11). These Substitute Warrants were liability classified (see Note 9). The changes in fair value of these Substitute Warrants were recognized as a gain or loss in the statement of operations until these Substitute Warrants were exercised in July 2021, at which time they were reclassified to additional paid-in capital.

On August 12, 2022, the Company received a demand for arbitration (the “Demand”) from GEM. The Demand claims that the Company’s subsidiary, NeuroRx, failed to satisfy its obligation to pay GEM a commitment fee in the amount of HK$15.0 million (approximately US$1.9 million at current exchange rates) pursuant to the GEM Agreement. NeuroRx expects to vigorously defend its position that payment of the commitment fee is neither due nor owing under the terms of the Agreement.

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9. Equity

Common Stock

500,000,000 shares of common stock with a par value $0.001. As discussed in Note 4, we have retroactively adjusted the shares issued and outstanding prior to May 24, 2021 to give effect to the Exchange Ratio established in the Merger Agreement to determine the number of shares of common stock into which they were converted.

The Company sold 7,824,727 shares of common stock during the year ended December 31, 2022, generating gross proceeds of $22.7 million. The Company issued 49,605 shares of common stock resulting from options that were exercised which generated proceeds of less than $0.1 million.

The Company issued 3,830,586 shares of common stock pursuant to warrants and Unit Purchase Options exercised during the year ended December 31, 2021, and received gross proceeds from the warrant exercise of $16.7 million. The Company issued 4,834,045 shares of common stock for consulting services during the year ended December 31, 2021, and recognized non-cash consulting expense in general and administrative expenses of $53.8 million.

The Company sold 3,642,727 shares of common stock during the year ended December 30, 2021, generating gross proceeds of $37.0 million. Of the 565,630 shares of common stock issued for the exercise of stock options, 203,477 shares of common stock were contingently issuable Earnout Shares and are excluded from the weighted average shares outstanding for computing EPS until the contingent conditions are satisfied. There are 1,044,453 shares of common stock issued pursuant to the GEM warrants which were contingently issuable Earnout Shares and are excluded from the weighted average shares outstanding for computing EPS until the contingent conditions are satisfied. As of December 31, 2022, these shares were cancelled as the earnout milestones were not achieved.

Pursuant to the Merger Agreement, BRPA and EarlyBirdCapital, Inc., the representative of the underwriters of BRPA’s initial public offering (“EBC”), entered into an amendment (“BCMA Amendment Agreement”) to the Business Combination Marketing Agreement, dated as of November 20, 2017 (“BCMA”), by and between BRPA and EBC. The BCMA Amendment Agreement provided that, in lieu of the cash fee payable to EBC pursuant to the BCMA, BRPA will issue to EBC at the Effective Time an aggregate of 200,000 shares of Common Stock and the BCMA (as amended by the BCMA Amendment Agreement) will terminate immediately following the Effective Time. The Company recognized the fair value of the 200,000 shares of Common Stock issued pursuant to the BCMA of $4.8 million within general and administrative in the Consolidated Statements of Operations for the year ended December 31, 2021. Refer to Note 12 for discussion of fair value measurement of the warrant liabilities.

BriLife Vaccine, VaccineCo Agreement and Issuance of Shares

On July 11, 2021, the Company entered into a Memorandum of Understanding (the “MOU”) with the Ministry of Defense of the State of Israel that granted NRx the right to negotiate an exclusive worldwide license to develop and market the BriLifeTM vaccine, which has been developed by the Israel Institute for Biological Research (“IIBR”). However, after investigating the manufacturing requirements of the vaccine, the expected regulatory path for approval in Israel and the EU, the commercial opportunity, and the financial commitment required for development of the vaccine, the Company decided not to continue with the project. This decision was communicated to the IIBR in a letter dated March 20, 2022.

As part of the Company’s consideration of the vaccine project, the Company entered into a Shareholder Agreement, dated October 15, 2021 (the “Agreement”), with Shimshon Hen and David Sepiashvili, each an Israeli citizen (the “Consultants”), under which the Consultants agreed to provide certain consulting services, and which set out a framework for establishing a potential joint venture between the Consultants and the Company that would have been responsible for the development and commercialization of the BriLife vaccine. Pursuant to the terms of the Agreement, the Company issued an aggregate of 4,000,000 shares of the Company’s Common Stock to the Consultants on October 20, 2021 under the Company’s 2021 Omnibus Incentive Plan. The Company is evaluating its options with respect to the Consultants.

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Preferred Stock

Upon closing of the Merger, pursuant to the terms of the Second Amended and Restated Certificate of Incorporation, the Company authorized 50,000,000 shares of preferred stock with a par value $0.001. The Company has no shares of preferred stock outstanding.

Series A, B-1, and B-1A Preferred Stock

Prior to the Merger, the Company had authorized and issued 1,000,000 shares of Series A convertible preferred stock, 1,050,695 shares of Series B-1 convertible preferred stock, and 316,848 shares of Series B-1A convertible preferred stock, par value of $0.001 per share, which was convertible into one share of common stock for each preferred share (collectively, the “Preferred Stock”) at any time, at the option of the holder. The Preferred Stock were not redeemable and the related stockholders were entitled to a subordinated liquidation preference should NeuroRx liquidate or wind up operations. The preferences also included voting rights on an as-converted basis, ride-along rights, and an anti-dilution provision. The liquidation preference was $1.00 per share for the Series A convertible preferred stock, $7.58 per share for the Series B-1 convertible preferred stock, and $6.82 per share for the Series B-1A convertible preferred stock, plus any declared but unpaid dividends. Upon an initial public offering or merger under certain conditions the Preferred Stock automatically converted into common stock.

On May 24, 2021, pursuant to the Merger (as described in Note 4), 2,367,543 outstanding shares of Preferred Stock were automatically converted into 7,480,836 shares of common stock pursuant to the Exchange Ratio.

Series B-2 Preferred Stock

In 2020, the Company authorized the issuance of 100,000 shares of Series B-2 Convertible Preferred Stock (the “B-2 Preferred Stock”), par value of $0.001 per share, convertible into one share of common stock for each share of B-2 Preferred Stock held. In March 2020, 4,167 shares of B-2 Preferred Stock were issued. The B-2 Preferred stock were not redeemable and the related stockholders were entitled to a subordinated liquidation preference should NeuroRx liquidate or wind-up operations. The preferences also included voting rights on an as-converted basis, ride-along rights, and an anti-dilution provision. The liquidation preference was $12.00 per share plus any declared but unpaid dividends. The B-2 Preferred Stock could be converted into one share of common stock (subject to adjustments for stock splits, recapitalization) at any time, at the option of the holder. Upon an initial public offering or merger under certain conditions the B-2 Preferred Stock automatically converted into common stock.

On May 24, 2021, pursuant to the Merger (as described in Note 4), 4,167 outstanding shares of B-2 Preferred stock were automatically converted into 13,168 shares of common stock pursuant to the Exchange Ratio.

Common Stock Warrants

Substitute Warrants

As discussed in Note 4, in connection with the Merger, each warrant of NeuroRx that was outstanding and unexercised immediately prior to the Effective Time (whether vested or unvested) was assumed by BRPA and converted into the Substitute Warrants, based on the Option Exchange Ratio (of 4.96), and will continue to be governed by substantially the same terms and conditions, including vesting, as were applicable to the former warrant. Each Substitute Warrant will be exercisable for a number of whole shares of Common Stock equal to the product of the number of shares of NeuroRx common stock underlying such NeuroRx warrant multiplied by the Option Exchange Ratio, and the per share exercise price of such Substitute Warrant will be equal to the quotient determined by dividing the exercise price per share of NeuroRx common stock by the Option Exchange Ratio. As discussed in Note 4, this ratio incorporates the achievement of the Earnout Shares Milestone and Earnout Cash Milestone. The incremental shares above the Exchange Ratio (of 3.16) upon exercise were held back pending the outcome of the contingencies and were not released as the contingencies were not achieved. The percentage of total shares of Common Stock subject to each Substitute Warrant that is vested immediately following the Effective Time will equal the percentage of total shares of NeuroRx common stock subject to each NeuroRx warrant that is vested immediately prior to the Effective Time.

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As neither the Earnout Shares Milestone nor the Earnout Cash Milestone occurred prior to December 31, 2022, each Substitute Warrant was adjusted based on the Exchange Ratio (3.16:1) and the portion of the Substitute Warrants related to the Earnout Shares were cancelled. For the Substitute Warrants that were exercised prior to December 31, 2022, NRx Pharmaceuticals retained and retired the outstanding shares forfeited by the warrant holders in connection with the adjustment.

Upon the closing of the Merger, all outstanding and unexercised NeuroRx warrants became warrants to purchase an aggregate 4,909,066 shares of the Company’s common stock with an average exercise price of $2.45 per share.

With respect to warrants held by certain members of our Board of Directors, the Substitute Warrants were determined to be within the scope of ASC 718. For the portion of the warrants subject to the base Exchange Ratio (3.16:1), the warrants were fully vested and therefore the incremental fair value of these Substitute Warrants at the date of the modification date was immediately recognized as compensation expense. For the incremental portion of the warrants with a performance-based vesting conditions (i.e., the achievement of the Earnout Cash Milestone and/or Earnout Shares Milestone), the Company determined it was not probable that the Earnout Cash Milestone or Earnout Shares Milestone would be met on the Effective Date and was not met on December 31, 2022. Therefore no expense has been recognized for this portion. Accordingly, the Company will only recognize incremental compensation cost related to the portion of the Substitute Warrants subject to service-based vesting conditions only. As of December 31, 2022, the earnout milestones were not achieved, therefore the Company will not recognize any unamortized incremental compensation cost during the period. The Company recognized incremental compensation on the modification date totaling $2.3 million which was recognized in general and administrative in the Consolidated Statements of Operations for the year ended December 31, 2021.

For any remaining outstanding warrants, as the warrant holders were no longer providing services at the date of the modification, in accordance with ASC 815, the Company concluded that the provisions in the Merger Agreement related to the Earnout Shares Milestone and the Earnout Cash Milestone and the contingent right to receive additional shares for these provisions precluded these Substitute Warrants from being accounted for as components of equity. As these Substitute Warrants meet the definition of a derivative as contemplated in ASC 815, the Substitute Warrants were recorded as derivative liabilities on the balance sheet and measured at fair value at inception (on the date of the Merger) and at each reporting date in accordance with ASC 820, Fair Value Measurement, with changes in fair value recognized in the Statements of Operations in the period of change. On May 24, 2021, the Company recorded a warrant liability of $53.3 million for the Substitute Warrants, reclassified out of additional-paid in capital $38.2 million representing the fair value of these NeuroRx warrants immediately before the modification as a result of the Merger, and recognized a loss of $15.1 million for the incremental fair value of these Substitute Warrants which is recorded in the Change in fair value of warrant liabilities on the Condensed Consolidated Statement of Operations.

The Company recognized a loss on the change in fair value of the Substitute Warrants for the years ended December 31, 2022 and 2021 of less than $0.1 million and $0.4 million, respectively. Refer to Note 11 for further discussion of fair value measurement of the warrant liabilities.

As discussed above the GEM Substitute Warrants were exercised in July 2021, and changes in the fair value of the warrant liability through the date of exercise were recognized in the statement of operations and upon exercise any remaining instruments were reclassified to additional paid-in capital and includes associated escrow shares for the contingent earnouts.

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The fair value of the original NeuroRx warrants and Substitute Warrants as of the Merger Date was determined using the Black-Scholes option-pricing model with the following assumptions for each:

Original Warrants Substitute Warrants

Volatility rate 80.0% 80.0%

Dividend yield — —

Assumed Public Warrants

Prior to the Merger, the Company had 3,450,000 Public Warrants outstanding. Each Public Warrant entitles the holder to purchase one share of Common Stock at an exercise price of $11.50 per share. The Public Warrants became exercisable at the Effective Time and expire five years after the Effective Time or earlier upon their redemption or liquidation of the Company.

The Company may redeem the Public Warrants:

● in whole and not in part;

● at a price of $0.01 per warrant;

● at any time during the exercise period;

● upon a minimum of 30 days’ prior written notice of redemption;

Certain of the above conditions have not been met to redeem the Public Warrants. If the Company calls the Public Warrants for redemption, management will have the option to require all holders that wish to exercise the Public Warrants to do so on a “cashless basis,” as described in the warrant agreement.

The exercise price and number of shares of common stock issuable upon exercise of the warrants may be adjusted in certain circumstances including in the event of a stock dividend, or recapitalization, reorganization, merger or consolidation. However, the warrants will not be adjusted for issuance of common stock at a price below its exercise price. Additionally, in no event will the Company be required to net cash settle the warrants.

During the year ended December 31, 2022 no Public Warrants were exercised. During the year ended December 31, 2021, 1,144 Public Warrants were exercised for gross proceeds of less than $0.1 million.

Assumed Placement Warrants

Prior to the Merger, the Company had outstanding 136,250 Placement Warrants. The Placement Warrants are identical to the Public Warrants except that the Placement Warrants (i) are not redeemable by the Company and (ii) may be exercised for cash or on a cashless basis, so long as they are held by the initial purchaser or any of its permitted transferees. If the Placement Warrants are held by someone other than the initial purchasers or their permitted transferees, the Placement Warrants will be redeemable by the Company and exercisable by such holders on the same basis as the Public Warrants.

NRX Pharmaceuticals, Inc. NRXP US Equity

NRXP · 10-K · period ended 2022-12-31

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

Item 8. Financial Statements and Supplementary Data

NRX Pharmaceuticals, Inc. NRXP US Equity☆

NRXP · 10-K · period ended 2022-12-31

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

Item 8. Financial Statements and Supplementary Data

NRX Pharmaceuticals, Inc. NRXP US Equity