Pulmatrix Inc

1. Nature of the Business

Pulmatrix, Inc. (the “Company”) was incorporated in 2013 as a Delaware corporation. The Company is a clinical-stage biopharmaceutical company focused on the development of a novel class of inhaled therapeutic products. The Company’s proprietary dry powder delivery platform, iSPERSE*™, is engineered to deliver small, dense particles with highly efficient dispersibility and delivery to the airways, which can be used with an array of dry powder inhaler technologies and can be formulated with a variety of drug substances. The Company is developing a pipeline of iSPERSE™*-based therapeutic candidates targeted at prevention and treatment of a range of respiratory and other diseases with important unmet medical needs.

2. Summary of Significant Accounting Policies and Recent Accounting Standards

Principles of Consolidation

The consolidated financial statements represent the consolidation of the accounts of the Company and its subsidiary in conformity with generally accepted accounting principles in the United States of America (“U.S. GAAP”). All intercompany accounts and transactions have been eliminated in consolidation. Any reference in these notes to applicable guidance is meant to refer to the U.S. GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Update (“ASU”) of the Financial Accounting Standards Board (“FASB”).

Risks, Uncertainties and Liquidity

The ongoing research and development activities will be subject to extensive regulation by numerous governmental authorities in the United States. Prior to marketing in the United States, any drug developed by the Company must undergo rigorous preclinical and clinical testing and an extensive regulatory approval process implemented by the United States Food and Drug Administration (“FDA”) under the Food, Drug and Cosmetic Act. The Company has limited experience in conducting and managing the preclinical and clinical testing necessary to obtain regulatory approval. There can be no assurance that the Company will not encounter problems in the clinical trials that will cause the Company or the FDA to delay or suspend clinical trials.

The Company’s success will depend in part on its ability to obtain patents and product license rights, maintain trade secrets, and operate without infringing on the property rights of others, both in the United States and other countries. There can be no assurance that patents issued to or licensed by the Company will not be challenged, invalidated, circumvented, or that the rights granted thereunder will provide proprietary protection or competitive advantages to the Company.

Based on its current operating plan, the Company believes that its cash and cash equivalents as of December 31, 2023, will be adequate to fund its currently anticipated operating expenses for at least twelve months from the date these financial statements are issued. The Company will need to secure additional funding in the future, from one or more equity or debt financings, collaborations, or other sources, in order to carry out all of the Company’s planned research and development activities and regulatory activities; commercialize product candidates; or conduct any substantial, additional development requirements requested by the FDA. Additional funding may not be available to the Company on acceptable terms, or at all. If the Company is unable to secure additional capital, it will be required to significantly decrease the amount of planned expenditures and may be required to cease operations. In addition, any disruption in the capital markets could make any financing more challenging, and there can be no assurance that Pulmatrix will be able to obtain such financing on commercially reasonable terms or at all. Curtailment of operations would cause significant delays in the Company’s efforts to develop and introduce its products to market, which is critical to the realization of its business plan and the future operations of the Company.

Use of Estimates

In preparing the consolidated financial statements in conformity with U.S. GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, as well as the reported amounts of expenses during the reporting period. Due to inherent uncertainty involved in making estimates, actual results may differ from these estimates. On an ongoing basis, the Company evaluates its estimates and assumptions. The most significant estimates and assumptions in the Company’s consolidated financial statements include, but are not limited to, estimates of future expected costs in order to derive and recognize revenue and estimates related to clinical trial accruals and upfront deposits.

Concentrations of Credit Risk

Cash is a financial instrument that potentially subjects the Company to concentrations of credit risk. For all periods presented, substantially all of the Company’s cash was deposited in accounts at a single financial institution that management believes is creditworthy, and the Company has not incurred any losses to date. The Company is exposed to credit risk in the event of default by this financial institution for amounts in excess of the Federal Deposit Insurance Corporation insured limits.

For the year ended December 31, 2023, revenue from one customer accounted for 100% of revenue recognized in the accompanying consolidated financial statements. For the year ended December 31, 2022, revenue from one customer accounted for approximately 99% of revenue recognized in the accompanying consolidated financial statements. As of both December 31, 2023 and 2022, one customer accounted for 100% of accounts receivable.

**Accounts Receivable **

The Company’s accounts receivable generally relate to amounts reimbursable under its collaboration agreements with partners. The contractual life of the Company’s receivables is generally short term. The Company makes judgments as to its ability to collect outstanding receivables and provides reserves against receivables for estimated losses that may result from a customer’s inability to pay. Specific amounts determined to be uncollectable are charged against the reserve. The Company believes that credit risks associated with its partners are not significant. For the years ended December 31, 2023 and 2022, the Company did not record any expected credit losses related to accounts receivable.

Cash, Cash Equivalents and Restricted Cash

Cash and cash equivalents are held in US banks and consist of cash deposited in operating and money market accounts.

Restricted cash represents cash held in a depository account at a financial institution to collateralize conditional stand-by letters of credit related to the Company’s current office and laboratory facility lease agreement in the amounts of $1,421, as well as $51 deposited in a money market account as security for a credit card as of December 31, 2023.

During the year ended December 31, 2023, $153 of restricted cash collateralizing a letter of credit related to the Company’s former headquarters lease became unrestricted, providing additional cash available for operations.

Property and Equipment, net

Property and equipment are recorded at cost less accumulated depreciation and amortization. Property and equipment are depreciated over their estimated useful lives using the straight-line method. Leasehold improvements are amortized over the shorter of the estimated remaining lease term or the useful lives of the related assets. Repairs and maintenance costs are expensed as incurred, whereas major improvements are capitalized as additions to property and equipment.

Depreciation and amortization is provided over the following estimated useful lives:

Upon retirement or sale, the cost and related accumulated depreciation are removed from the balance sheet and the resulting gain or loss is reflected in operations.

Impairment of Long-Lived Assets

The Company accounts for long-lived assets in accordance with FASB ASC Topic 360,Property, Plant, and Equipment. Long-lived assets, other than goodwill, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. Application of alternative assumptions, such as changes in estimate of future cash flows, could produce significantly different results.

For long-lived assets used in operations, impairment losses are only recorded if the asset’s carrying amount is not recoverable through its undiscounted, probability-weighted future cash flows. The Company measures the impairment loss based on the difference between the carrying amount and estimated fair value.

Fair Value of Financial Instruments

The Company is required to disclose information on all assets and liabilities reported at fair value that enables an assessment of the inputs used in determining the reported fair values. FASB ASC Topic 820,Fair Value Measurement, establishes a hierarchy of inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the inputs that market participants would use in pricing the asset or liability and are developed based on the best information available in the circumstances. The fair value hierarchy applies only to the valuation inputs used in determining the reported fair value of the investments and is not a measure of the investment credit quality. The three levels of the fair value hierarchy are described below:

Level 1 — Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

Level 2 — Valuations based on quoted prices for similar assets or liabilities in markets that are not active, or for which all significant inputs are observable, either directly or indirectly.

Level 3 — Valuations that require inputs that reflect the Company’s own assumptions that are both significant to the fair value measurement and unobservable.

To the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for instruments categorized in Level 3. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

As of December 31, 2023 and 2022, the Company did not hold any financial assets or liabilities that were measured at fair value on a recurring or nonrecurring basis. During the years ended December 31, 2023 and 2022, there were no transfers between Level 1, Level 2 and Level 3.

Leases

The Company accounts for leases in accordance with FASB ASC Topic 842,Leases. At the inception of an arrangement, the Company determines whether the arrangement is or contains a lease based on the unique facts and circumstances present. The Company has elected not to recognize on the balance sheet leases with terms of one year or less. Options to renew a lease are not included in the Company’s initial lease term assessment unless there is reasonable certainty that the Company will renew. The Company monitors its plans to renew its material leases on a quarterly basis.

Operating lease liabilities and their corresponding right-of-use assets are recorded based on the present value of lease payments over the expected remaining lease term. However, certain adjustments to the right-of-use asset may be required for items, such as incentives received. The interest rate implicit in lease contracts is typically not readily determinable. As a result, the Company utilizes its incremental borrowing rates, which are the rates incurred to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment. The Company has elected to account for the lease and non-lease components as a combined lease component. Lease expense for operating lease payments is recognized on a straight-line basis over the lease term.

Revenue Recognition

The Company’s principal source of revenue during the years ended December 31, 2023 and 2022 was derived from a collaboration arrangement and license agreement that relate to the development and commercialization of PUR1900 under the Cipla Agreement (as defined below).

At inception, management determines whether contracts are within the scope of FASB ASC Topic 606,Revenue from Contracts with Customers(“ASC 606”) or other topics, including FASB ASC Topic 808,Collaborative Arrangements (“ASC 808”). For contracts that are within the scope of ASC 808, the Company evaluates whether the counterparty is a customer for any of the units of account (i.e., distinct goods and services) in the contract. For units of account where the counterparty is considered a customer, the Company applies ASC 606 to those unit(s) of account, including recognition, measurement, presentation, and disclosure guidance. To date, the Company has determined it is appropriate to apply ASC 606 to all contracts and units of account for contracts within the scope of ASC 808.

For contracts and units of account that are determined to be within the scope of ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration to which management expects to be entitled to receive in exchange for these goods and services. To achieve this core principle, management applies the following five steps (i) identify the contract with the customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when or as the Company satisfies a performance obligation. The Company only applies the five-step model to contracts when it is probable that the Company will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer.

Identification of Performance Obligations. Performance obligations promised in a contract are identified at contract inception based on the goods and services that are both capable of being distinct and are distinct in the context of the contract. To the extent a contract includes multiple promised goods and services, management applies judgment to determine whether promised goods and services are both capable of being distinct and distinct in the context of the contract. If these criteria are not met, the promised goods and services are accounted for as a combined performance obligation.

*Transaction Price and Milestone Payments.*The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring goods and services to the customer. At the inception of each contract that includes research or development milestone payments, the Company evaluates whether the milestones are considered probable of being achieved and estimates the amount to be included in the transaction price using the most likely amount method. If it is probable that a significant revenue reversal would not occur, the associated milestone value is included in the transaction price. Milestone payments that are not within the Company’s control or the licensee, such as regulatory approvals, are not considered probable of being achieved until those approvals are received. Management evaluates factors such as the scientific, clinical, regulatory, commercial, and other risks that must be overcome to achieve the particular milestone in making this assessment. There is considerable judgment involved in determining whether it is probable that a significant revenue reversal would not occur. At the end of each reporting period, management reevaluates the probability of achievement of all milestones subject to constraint and, if necessary, adjust the estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect revenues and earnings in the period of adjustment.

Exclusive Licenses. If the license to the Company’s intellectual property is determined to be distinct from the other promises or performance obligations identified in the arrangement, the Company recognizes revenue from non-refundable, upfront fees allocated to the license when the license is transferred to the customer and the customer is able to use and benefit from the license. In assessing whether a promise or performance obligation is distinct from the other promises, the Company considers factors such as the research, development, manufacturing and commercialization capabilities of the collaboration partner and the availability of the associated expertise in the general marketplace. In addition, the Company considers whether the counterparty can benefit from a promise for its intended purpose without the receipt of the remaining promise, whether the value of the promise is dependent on the unsatisfied promise, whether there are other vendors that could provide the remaining promise, and whether it is separately identifiable from the remaining promise. For licenses that are combined with other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress for purposes of recognizing revenue. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition. The measure of progress, and thereby periods over which revenue should be recognized, are subject to estimates by management and may change over the course of the research and development and licensing agreement. Such a change could have a material impact on the amount of revenue the Company records in future periods.

*Research and Development Services.*The promises under the Company’s arrangements may include research and development services to be performed by the Company on behalf of the counterparty. Payments or reimbursements from customers resulting from the Company’s research and development efforts are recognized as the services are performed and presented on a gross basis because the Company is the principal for such efforts. The Company uses an input method, according to the ratio of costs incurred to the total costs expected to be incurred in the future to satisfy the performance obligation. In management’s judgment, this input method is the best measure of the transfer of control of the performance obligation. Amounts received prior to revenue recognition are recorded as deferred revenue. Amounts expected to be recognized as revenue within the 12 months following the balance sheet date are classified as current portion of deferred revenue in the accompanying consolidated balance sheets. Amounts not expected to be recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue, net of current portion. Reimbursements from and payments to the counterparty that are the result of a collaborative relationship, instead of a customer relationship, such as co-development activities, are recognized as the services are performed and presented as a reduction to research and development expense. To date, the Company has determined that all arrangements which include research and development services have been transacted with customers and recognized on a gross basis using ASC 606.

*Royalties.*For contracts that include sales-based royalties, including milestone payments upon first commercial sales and milestone payments based on a level of sales, which are the result of a customer-vendor relationship and for which the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied or partially satisfied.

*Customer Options.*If an arrangement is determined to contain customer options that allow the customer to acquire additional goods or services, the goods and services underlying the customer options that are not determined to be material rights are not considered to be performance obligations at the outset of the arrangement, as they are contingent upon option exercise. The Company evaluates the customer options for material rights, or options to acquire additional goods or services for free or at a discount. If the customer options are determined to represent a material right, the material right is recognized as a separate performance obligation at the outset of the arrangement. The Company allocates the transaction price to material rights based on the relative standalone selling price, which is determined based on the identified discount and the probability that the customer will exercise the option. Amounts allocated to a material right are not recognized as revenue until, at the earliest, the option is exercised.

For a complete discussion of accounting for the Company’s revenue contracts, see Note 6,Significant Agreements.

Research and Development Costs

Research and development costs are expensed as incurred and include salaries, benefits, bonus, stock-based compensation, license fees, milestone payments due under license agreements, costs paid to third-party contractors to perform research, conduct clinical trials, and develop drug materials and delivery devices; and associated overhead and facilities costs. Clinical trial costs are a substantial component of research and development expenses and include costs associated with third-party contractors, clinical research organizations (“CROs”) and clinical manufacturing organizations (“CMOs”). Invoicing from third-party contractors for services performed can lag several months. The Company accrues the costs of services rendered in connection with third-party contractor activities based on management’s estimate of fees and costs associated with the contract that were rendered during the period and they are expensed as incurred. Research and development costs that are paid in advance of performance are capitalized as prepaid expenses and amortized over the service period as the services are provided.

Stock-based Compensation

The Company recognizes all employee stock-based compensation as a cost in the consolidated financial statements. Equity-classified awards principally related to stock options, which are measured at the grant date fair value of the award. The Company determines grant-date fair value of stock option awards using the Black-Scholes option-pricing model. For service-based vesting grants, expense is recognized over the requisite service period based on the number of options or shares expected to ultimately vest. For performance-based vesting grants, expense is recognized over the requisite period until the performance obligation is met, assuming that it is probable. No expense is recognized for performance-based grants until it is probable the vesting criteria will be satisfied.

Stock-based payments to non-employees are recognized as services are rendered, generally on a straight-line basis. The Company believes that the fair values of these awards are more reliably measurable than the fair values of the services rendered.

Convertible Financial Instruments

The Company bifurcates conversion options from their host instruments and accounts for them as freestanding derivative financial instruments if certain criteria are met. The criteria include circumstances in which (a) the economic characteristics and risks of the embedded derivative instrument are not clearly and closely related to the economic characteristics and risks of the host contract, (b) the hybrid instrument that embodies both the embedded derivative instrument and the host contract is not re-measured at fair value under otherwise applicable generally accepted accounting principles with changes in fair value reported in earnings as they occur and (c) a separate instrument with the same terms as the embedded derivative instrument would be considered a derivative instrument. An exception to this rule is when the host instrument is deemed to be conventional, as that term is described under applicable U.S. GAAP.

When the Company has determined that the embedded conversion options should not be bifurcated from their host instruments, discounts are recorded for the intrinsic value of any beneficial conversion options embedded in the instruments based upon the differences between the fair value of the underlying common stock at the commitment date of the transaction and the effective conversion price embedded in the instrument. Deemed dividends are also recorded for the intrinsic value of beneficial conversion options embedded in preferred stock based upon the differences between the fair value of the underlying common stock at the commitment date of the transaction and the effective conversion price embedded in the preferred stock.

Common Stock Warrants

The Company classifies as equity any warrants that (i) require physical settlement or net-share settlement or (ii) provide the Company with a choice of net-cash settlement or settlement in its own shares (physical settlement or net-share settlement). The Company classifies as assets or liabilities any warrants that (i) require net-cash settlement (including a requirement to net cash settle the contract if an event occurs and if that event is outside the Company’s control), (ii) gives the counterparty a choice of net-cash settlement or settlement in shares (physical settlement or net-share settlement) or (iii) that contain reset provisions that do not qualify for the scope exception. The Company assesses classification of its common stock warrants and other freestanding derivatives at each reporting date to determine whether a change in classification between assets and liabilities is required. The Company’s freestanding derivatives consist of warrants to purchase common stock that were issued in connection with its (i) convertible preferred stock, (ii) private placements, (iii) term loan, (iv) consulting services and (v) underwriting and representative services. The Company evaluated these warrants to assess their proper classification and determined that the common stock warrants meet the criteria for equity classification in the consolidated balance sheets.

Basic and Diluted Net Loss Per Share

Basic and diluted earnings (loss) per share are computed using the two-class method, which is an earnings allocation method that determines earnings (loss) per share for common shares and participating securities. The participating securities consist of the Company’s preferred stock. The undistributed earnings are allocated between common shares and participating securities as if all earnings had been distributed during the period. In periods of loss, no allocation is made to the preferred shares and diluted net loss per share is the same as basic net loss per share because common stock equivalents are excluded as their inclusion would be anti-dilutive.

Income Taxes

Income taxes are recorded in accordance with FASB ASC Topic 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 consolidated financial statements or tax returns. Deferred tax assets and liabilities are determined based on the difference between the financial statement and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. A valuation allowance is provided, if, based upon the weight of available evidence, it is more likely than not that some or all of the net 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 will more likely than not be realized. 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 as consideration of the available facts and circumstances.

Recent Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the FASB or other standard setting bodies that are adopted by the Company as of the specified effective date. Except as set forth below, the Company did not adopt any new accounting pronouncements during the year ended December 31, 2023 that had a material effect on its consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13,Financial Instruments—Credit Losses (Topic 326)—Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which has been subsequently amended. The provisions of ASU 2016-13 modify the impairment model for financial instruments to utilize an expected loss methodology in place of the currently used incurred loss methodology and require consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The Company adopted the standard as of January 1, 2023. The adoption of this standard did not have a material effect on the Company’s consolidated financial statements.

As of December 31, 2023, there are no new, or existing recently issued, accounting pronouncements that are of significance, or potential significance, that impact the Company’s consolidated financial statements.

3. Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following:

4. Property and Equipment, Net

Property and equipment, net consisted of the following:

Depreciation and amortization expense for the year ended December 31, 2023 and 2022 was $134 and $162, respectively. During the year ended December 31, 2023, the Company disposed of certain property and equipment primarily in connection with moving to its new office, resulting in a loss on disposal of $8. During the year ended December 31, 2022, the Company disposed of certain fixed assets with immaterial gross costs and accumulated depreciation.

5. Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:

6. Significant Agreements

Development and Commercialization Agreement with Cipla Technologies LLC (“Cipla”)

On April 15, 2019, the Company entered into a Development and Commercialization Agreement (the “Cipla Agreement”) with Cipla for the co-development and commercialization, on a worldwide exclusive basis, of PUR1900, the Company’s inhaled iSPERSE*™*drug delivery system (the “Product”) enabled formulation of the antifungal drug itraconazole, which is only available as an oral drug, for the treatment of all pulmonary indications, including allergic bronchopulmonary aspergillosis (“ABPA”) in patients with asthma. The Company entered into an amendment to the Cipla Agreement on November 8, 2021 (the “Second Amendment”) and a subsequent amendment on January 6, 2024 (the “Third Amendment”). All references to the Cipla Agreement herein refer to the Cipla Agreement, as amended.

The Company received a non-refundable upfront payment of $22.0 million (the “Upfront Payment”) under the Cipla Agreement. Upon receipt of the Upfront Payment, the Company irrevocably assigned to Cipla the following assets, solely to the extent that each covers the Product in connection with any treatment, prevention, and/or diagnosis of diseases of the pulmonary system (“Pulmonary Indications”): all existing and future technologies, current and future drug master files, dossiers, third-party contracts, regulatory filings, regulatory materials and regulatory approvals, patents, and intellectual property rights, as well as any other associated rights and assets directly related to the Product, specifically in relation to Pulmonary Indications (collectively, the “Assigned Assets”), excluding most specifically the Company’s iSPERSE*™* technology. A portion of the Upfront Payment was deposited by the Company into a bank account, along with an equal amount from the Company, and was dedicated to the development of the Product (the “Initial Development Funding”). The Initial Development Funding was depleted during the year ended December 31, 2021, at which point the Company and Cipla each became responsible for a portion of the development costs actually incurred as described below (the “Co-Development Phase”).

Pursuant to the Second Amendment, the Company and Cipla were each responsible for 60% and 40%, respectively, of the Company’s overhead costs and the time spent by the Company’s employees and consultants on development of the Product (“Direct Costs”). The Company will share all other development costs with Cipla that are not Direct Costs, such as the cost of clinical research organizations, manufacturing costs and other third-party costs, on a 50/50 basis.

Pursuant to the Third Amendment, the Company and Cipla agreed that, during the period commencing on January 6, 2024 and ending July 30, 2024 (the “Wind Down Period”), the Company will complete all Phase 2b activities, assign or license all patents to Cipla and their registration with the appropriate authorities in regions other than the United States, complete a physical and demonstrable technology transfer and secure all data from the Phase 2b study for inclusion in the safety database. The Company will share costs with Cipla during the Wind Down Period in the same proportions in effect with the Second Amendment discussed above, but subject to a maximum reimbursement amount by Cipla as approved by the joint steering committee.

Accounting Treatment

The Company concluded that because both it and Cipla are active participants in the arrangement and are exposed to the significant risks and rewards of the collaboration, the Company’s collaboration with Cipla is within the scope of ASC 808. The Company concluded that Cipla is a customer since they contracted with the Company to obtain research and development services and a license to the Assigned Assets, each of which is an output of the Company’s ordinary activities, in exchange for consideration. Therefore, the Company has applied the guidance in ASC 606 to account for the research and development services and a license within the contract. The Company determined that the research and development services and license to the Assigned Assets are considered highly interdependent and highly interrelated and therefore are considered a single combined performance obligation because Cipla cannot benefit from the license without the performance by the Company of the research and development services. Such research and development services are highly specialized and proprietary to the Company and therefore not available to Cipla from any other third party.

The Company initially determined the total transaction price to be $22.0 million – comprised of $12.0 million for research and development services for the Product and $10.0 million for the irrevocable license to the Assigned Assets. Any consideration related to the Co-Development Phase was not initially included in the transaction price as such amounts are subject to the variable consideration constraint. Additionally, upon commercialization, Cipla and the Company will share equally, both positive and negative total free cash-flows earned by Cipla in respect of the Product. However, the Company has not included such free cash-flows in the transaction price as these milestones are constrained.

The Company concluded that the Second Amendment represented a contract modification that is treated for accounting purposes as the termination of the Cipla Agreement and a creation of a new contract (the “Amended Cipla Agreement”). Accordingly, the modification is accounted for on a prospective basis. The total transaction price for the Amended Cipla Agreement includes variable consideration from the Second Amendment as well as $7.4 million deferred under the Cipla Agreement as of the Second Amendment execution date.

The Company concluded that the Third Amendment, executed on January 6, 2024, is a nonrecognized subsequent event for the year ended December 31, 2023. Accordingly, the Company’s accounting for the Cipla Agreement as of and during the year ended December 31, 2023 reflects the contract and estimates in effect as of December 31, 2023.

Revenue is recognized for the Cipla Agreement as the research and development services are provided using an input method, according to the ratio of costs incurred to the total costs expected to be incurred in the future to satisfy the Company’s obligations. In management’s judgment, this input method is the best measure of the transfer of control of the combined performance obligation. The amounts received that have not yet been recognized as revenue are recorded in deferred revenue on the Company’s consolidated balance sheets, with amounts expected to be recognized in the next 12 months recorded as current.

During the years ended December 31, 2023 and 2022, the Company recognized $7.3 million and $6.1 million, respectively, in revenue related to the research and development services and irrevocable license to the Assigned Assets in the Company’s consolidated statements of operations. Of the revenue recognized during the years ended December 31, 2023 and 2022, $1.1 million and $0.8 million, respectively, was included in deferred revenue at the beginning of the period. As of December 31, 2023, the aggregate transaction price related to the Company’s unsatisfied obligations was $4.3 million and was recorded in deferred revenue, $0.6 million of which was current.

7. Common Stock

In May 2021, the Company entered into an At-The-Market Sales Agreement (the “Sales Agreement”) with H.C. Wainwright and Co., LLC (“HCW”) to act as the Company’s sales agent with respect to the issuance and sale of up to $20.0 million of the Company’s shares of common stock, from time to time in an at-the-market public offering (the “ATM Offering”). Sales of common stock under the Sales Agreement are made pursuant to an effective shelf registration statement on Form S-3, which was filed with the Securities and Exchange Commission (“SEC”) on May 26, 2021, and subsequently declared effective on June 9, 2021 (File No. 333-256502), and a related prospectus. HCW acts as the Company’s sales agent on a commercially reasonable efforts basis, consistent with its normal trading and sales practices and applicable state and federal laws, rules and regulations and the rules of The Nasdaq Capital Market (“Nasdaq”). If expressly authorized by the Company, HCW may also sell the Company’s common stock in privately negotiated transactions. There is no specific date on which the ATM Offering will end, there are no minimum sale requirements and there are no arrangements to place any of the proceeds of the ATM Offering in an escrow, trust or similar account. HCW is entitled to compensation at a fixed commission rate of 3.0% of the gross proceeds from the sale of the Company’s common stock pursuant to the Sales Agreement.

During the year ended December 31, 2023, the Company sold 13,100 shares of its common stock under the Sales Agreement at a weighted-average price of approximately $4.25 per share, which resulted in net proceeds of approximately $53 thousand.

During the year ended December 31, 2022, the Company sold 252,013 shares of its common stock under the Sales Agreement at a weighted-average price of approximately $5.70 per share which resulted in net proceeds of approximately $1.4 million.

8. Warrants

The following table summarizes warrant activity for the year ended December 31, 2023:

The following represents a summary of the warrants outstanding and exercisable at December 31, 2023, all of which are equity-classified:

9. Stock-based Compensation

The Company sponsors the Pulmatrix, Inc. Amended and Restated 2013 Employee, Director and Consultant Equity Incentive Plan (the “Incentive Plan”). As of December 31, 2023, the Incentive Plan provided for the grant of up to 636,322 shares of the Company’s common stock, of which 288,186 shares remained available for future grant. In addition, the Company sponsors two legacy plans under which no additional awards may be granted. As of December 31, 2023, the two legacy plans have a total of 8 options outstanding, all of which are fully vested and for which common stock will be issued upon exercise.

The following table summarizes stock option activity for the year ended December 31, 2023:

The Company records stock-based compensation expense related to stock options based on their grant-date fair value. During the years ended December 31, 2023 and 2022, the Company used the Black-Scholes option-pricing model to estimate the fair value of stock option grants and to determine the related compensation expense. The assumptions used in calculating the fair value of stock-based payment awards represent management’s best estimates. The weighted-average grant-date fair value of options granted during the years ended December 31, 2023 and 2022 was $3.27 per share and $5.41 per share, respectively. The weighted-average assumptions used in determining fair value of the stock options for the years ended December 31, 2023 and 2022 are as follows:

The expected life of the Company’s options was determined using the simplified method as a result of limited historical data regarding the Company’s activity. The risk-free interest rate was obtained from U.S. Treasury rates for the expected life of the stock options. The Company’s expected volatility was based upon the historical volatility of the Company’s common stock. The dividend yield considers that the Company has not historically paid dividends and does not expect to pay dividends in the foreseeable future.

As of December 31, 2023, there was $0.8 million of unrecognized stock-based compensation expense related to unvested stock options granted under the Company’s stock award plans. This expense is expected to be recognized over a weighted-average period of approximately 2.0 years.

The following table presents total stock-based compensation expense for the years ended December 31, 2023 and 2022:

10. Commitments and Contingencies

Research and Development Activities

The Company contracts with various other organizations to conduct research and development activities, including clinical trials. The scope of the services under contracts for research and development activities may be modified and the contracts, subject to certain conditions, may generally be cancelled by the Company upon written notice. In some instances, the contracts, subject to certain conditions, may be cancelled by the third party. As of December 31, 2023, the Company had no material noncancellable commitments not expected to be reimbursed under the Cipla Agreement.

Legal Proceedings

In the ordinary course of its business, the Company may be involved in various legal proceedings involving contractual and employment relationships, patent or other intellectual property rights, and a variety of other matters. The Company is not aware of any pending legal proceedings that would reasonably be expected to have a material impact on the Company’s financial position or results of operations.

11. Leases

New Corporate Headquarters

The Company has limited leasing activities as a lessee which are primarily related to its corporate headquarters, which were relocated during the year ended December 31, 2023. On January 7, 2022, the Company executed a lease agreement with Cobalt Propco 2020, LLC for its new corporate headquarters at 36 Crosby Drive, Bedford, Massachusetts. The leased premises comprise approximately 20,000 square feet of office and lab space, and thelease provides for base rent of $0.1 million per month, payment of which began in March 2024, and which will increase 3% each year over the ten-year noncancellable term. The Company has the option to extend the lease for one additional five-year term and is responsible for real estate taxes, maintenance, and other operating expenses applicable to the leased premises.

The lease commenced on August 1, 2023, following substantial completion of construction to prepare the premises for the Company’s use, and the Company has included the lease as a component of its operating lease right-of-use asset and operating lease liabilities upon commencement. The improvements to prepare the leased premises for the Company’s intended use have been funded by (i) the landlord, through a tenant allowance of $3.9 million, (ii) a landlord-funded advance on tenant improvements of $0.5 million which will be repaid over the lease term, and (iii) approximately $2.2 million funded by the Company.

Other Leasing Activities

During the first quarter of 2023, the Company executed a two-month lease extension for its previous corporate headquarters in Lexington, Massachusetts, through August 31, 2023. The Company terminated that lease extension, as planned, during the third quarter of 2023.

The Company also leases small office equipment which is primarily short-term or immaterial in nature. Therefore, no right-of-use assets and lease liabilities are recognized for these leases.

The components of lease expense for the Company for the years ended December 31, 2023 and 2022 were as follows:

Maturities of lease liabilities due under these lease agreements as of December 31, 2023 are as follows:

12. Income Taxes

The Company had no income tax expense due to operating losses incurred for the years ended December 31, 2023 and 2022.

A reconciliation of the provision for income taxes computed at the statutory federal income tax rate to the provision for income taxes as reflected in the consolidated financial statements is as follows:

The significant components of the Company’s deferred tax assets as of December 31, 2023 and 2022 were as follows:

Subject to the limitations described below, as of December 31, 2023, the Company hadfederal net operating loss carryforwards of approximately $58.1 million available to reduce future taxable income, of which $3.8 million is subject to expiration between 2026 and 2037 and $54.3 million may be carried forward indefinitely. As of December 31, 2023, the Company had state net operating loss carryforwards of approximately $10.5 million, which is subject toexpiration between 2030 and 2043. The Company also had research and development credits of approximately $1.6 million as of December 31, 2023 to offset future federal and state income taxes, which is subject toexpiration at various times through 2043.

Under the provisions of the Internal Revenue Code, the net operating loss and tax credit carryforwards are subject to review and possible adjustment by the Internal Revenue Service and state tax authorities. Net operating loss and tax credit carryforwards may become subject to an annual limitation in the event of certain cumulative changes in the ownership interest of significant shareholders over a three-year period in excess of 50 percent, as defined under Sections 382 and 383 of the Internal Revenue Code, respectively, as well as similar state provisions. This could limit the amount of tax attributes that can be utilized annually to offset future taxable income or tax liabilities. The amount of the annual limitation is determined based on the value of the Company immediately prior to the ownership change. Subsequent ownership changes may further affect the limitation in future years. The Company has completed several financings since its inception which it believes has resulted in changes in control as defined by Sections 382 and 383 of the Internal Revenue Code.

Management of the Company evaluated the positive and negative evidence bearing upon the realizability of its deferred tax assets and determined that it is more likely than not that the Company will not recognize the benefits of the deferred tax assets. As a result, a full valuation allowance was recorded as of December 31, 2023 and 2022. The valuation allowance increased by $4.4 million during the year ended December 31, 2023, primarily due to the capitalization of research and development expenses and increase in loss carryforwards by the Company.

As part of the Tax Cuts and Jobs Act that was enacted in December of 2017, taxpayers are required to capitalize research and development expenses and amortize them over five years if the expense is incurred in the US and over fifteen years if incurred in a foreign jurisdiction. The effective date for that provision is for tax years beginning on or after January 1, 2022. The capitalization requirement increased deferred tax assets related to research and development expenses and decreased taxable loss in the current year, both of which were offset by a full valuation allowance.

The Company applies ASC 740,Income Taxes, for the financial statement recognition, measurement, presentation, and disclosure of uncertain tax positions taken or expected to be taken in income tax returns. Unrecognized tax benefits represent tax positions for which reserves have been established. A full valuation allowance has been provided against the Company’s deferred tax assets, so that the effect of the unrecognized tax benefits is to reduce the gross amount of the deferred tax asset and the corresponding valuation allowance.

The Company is currently not under examination by the Internal Revenue Service or any other jurisdictions for any tax years. The Company files income tax returns in the United States for federal and state income taxes. In the normal course of business, the Company is subject to examination by tax authorities in the United States. Since the Company is in a loss carryforward position, the Company is generally subject to U.S. federal and state income tax examinations by tax authorities for all years for which a loss carryforward is utilized. The Company’s returns remain subject to federal and state audits for the years 2020 through 2023. However, carryforward attributes from prior years may still be adjusted upon examination by tax authorities if they are used in an open period.

The Company may from time to time be assessed interest or penalties by major tax jurisdictions. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. The Company has not recorded interest or penalties on any unrecognized tax benefits since its inception.

The Company anticipates that the amount of unrecognized tax benefits will not materially change in the next twelve months.

The roll-forward of the Company’s gross uncertain tax positions is as follows:

The Company’s total uncertain tax positions increased during the year ended December 31, 2023 as a result of a reserve established on federal and state research and development credits generated in the current year. None of the uncertain tax positions, if realized, would affect the Company’s effective tax rate in future periods due to a valuation allowance provided against the Company’s net deferred tax assets.

13. Net Loss Per Share

Basic and diluted earnings (loss) per share are computed using the two-class method, which is an earnings allocation method that determines earnings (loss) per share for common shares and participating securities. The participating securities consist of the Company’s Series A Preferred Stock. The undistributed earnings are allocated between common shares and participating securities as if all earnings had been distributed during the period. In periods of loss, no allocation is made to the Series A Preferred Stock and diluted net loss per share is the same as basic net loss per share because common stock equivalents are excluded as their inclusion would be antidilutive.

The following potentially dilutive securities outstanding have been excluded from the computation of diluted weighted-average shares outstanding, because such securities had an antidilutive impact:

14. Subsequent Events

The Company has completed an evaluation of all subsequent events after the balance sheet date of December 31, 2023 through the date the consolidated financial statements were issued to ensure that the consolidated financial statements include appropriate disclosure of events both recognized in the consolidated financial statements as of December 31, 2023, and events which occurred subsequently but were not recognized in the consolidated financial statements. The Company has concluded that no subsequent events have occurred that require disclosure, except as disclosed within the consolidated financial statements.