Nature of Business and Summary of Significant Accounting Policies | 1. Nature of Business and Summary of Significant Accounting Policies Nature of Business F-star “F-star” F-star’s ™ F-star’s F-star e e F-star’s proof-of-concept PD-1/PD-L1 2 PD-L1 LAG-3, F-star’s 2 F-star’s PD-L1 2 PD-L1 co-expressed . F-star Share Exchange Agreement On November 20, 2020, F-star F-star (“F-star F-star F-star F-star F-star F-star non-assessable 1-for-4 F-star F-star, Under the terms of the Exchange Agreement, at the Closing, Spring Bank issued an aggregate of 4,620,618 shares of its common stock to F-star F-star F-star Pursuant to the Exchange Agreement, immediately prior to the Closing, certain investors in F-star F-star “Pre-Closing F-star Pursuant to the Exchange Agreement, all outstanding options to purchase Spring Bank common stock were accelerated immediately prior to the Closing, and each outstanding option with an exercise price greater than the closing price of Spring Bank common stock on the date of the Closing (the “Closing Date”) was exercised in full, and all other outstanding options to purchase Company common stock were cancelled effective as of the Closing Date. Immediately following the Reverse Stock Split and the Closing, there were approximately 4,449,559 shares of Spring Bank common stock outstanding. Following the Closing, the F-star F-star F-star lock-up 180-day F-star Pre-Closing In addition, at the Closing, Spring Bank, F-star the pre-Reverse pre-Reverse The CVR payment obligation expires on the later of 18 months following the Closing or the one-year At the Closing, Spring Bank, F-star The CVR payment obligations expire on the seventh anniversary of the Closing (the “STING Antagonist CVR Expiration Date”). The STING Antagonist CVRs are not transferable, except in certain limited circumstances, are not certificated or evidenced by any instrument, do not accrue interest, and are not registered with the SEC or listed for trading on any exchange. Until the STING Antagonist CVR Expiration Date, subject to certain exceptions, the Company is required to use commercially reasonable efforts to (a) consummate the Approved Development Agreement, (b) to perform the terms of the Approved Development Agreement and (c) pursue CVR Transactions. The STING Antagonist CVR Agreement became effective upon the Closing and, unless terminated earlier in accordance with its terms, will continue in effect until the STING Antagonist CVR Expiration Date or all CVR payment amounts are paid pursuant to their terms. On July 8, 2021, the Company entered into a License Agreement with AstraZeneca plc (“AstraZeneca”) under which AstraZeneca will receive global rights to research, develop and commercialize next generation Stimulator of Interferon Genes (STING) inhibitor compounds. Under the terms of the agreement, AstraZeneca is granted exclusive access to and will be responsible for all future research, development and commercialization of the STING inhibitor compounds. F-star F-star F-star F-star F-star The acquisition-date fair value of the CVR liability represents the future payments that are contingent upon the achievement of sale or licensing for the product candidates. The fair value of the contingent consideration acquired of $2.5 million as of December 31, 2020, and $3.1 million as of June 30, 2021, is based on the Company’s probability-weighted discounted cash flow assessment that considers probability and timing of future payments. The fair value measurement is based on significant Level 3 unobservable inputs such as the probability of achieving a sale or licensing agreement, anticipated timelines, and discount rate. Changes in the fair value of the liability will be recognized in the consolidated statement of operations and comprehensive loss until settlement. For the three months ended June 30, 2021, the estimated fair value increased to $3.1 million which resulted in a $0.6 million charge on the Consolidated Statements of Operations and Comprehensive Loss. All issued and outstanding F-star F-star’s F-star F-star n The Company’s common stock, which is The Transaction was accounted for as a business combination using the acquisition method of accounting under the provisions of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), Topic 805, Business Combinations n F-star F-star F-star (1) F-star (2) F-star (3) F-star F-star Liquidity On March 30, 2021, the Company entered into a Sales Agreement (the “2021 Sales Agreement”) with SVB Leerink LLC (“SVB Leerink”) with respect to an “at-the-market” On May 6, 2021, the Company entered into an underwriting agreement with SVB Leerink, as representative of the underwriters, relating to an underwritten public offering (the “Underwritten Public Offering”) of 10.4 million shares of the Company’s common stock, par value $0.0001 per share. The underwritten public offering resulted in gross proceeds of $73.1 million. The Company incurred $4.4 million in issuance costs and $0.5 million of professional fees associated with the underwritten public offering, resulting in net proceeds to the Company of $68.2 million. On April 1, 2021, the Company, as borrower, entered into a Venture Loan and Security Agreement (the “Loan and Security Agreement”) with Horizon Technology Finance Corporation (“Horizon”), as lender and collateral agent for itself. The Loan and Security Agreement provides for four separate and independent $2.5 million term loans (“Loan A”, “Loan B”, “Loan C”, and “Loan D”) (with each of Loan A, Loan B, Loan C and Loan D, individually a “Term Loan” and, collectively, the “Term Loans”), whereby, upon the satisfaction of all the conditions to the funding of the Term Loans, each Term Loan will be delivered by Horizon to the Company in the following manner: (i) Loan A was delivered by Horizon to the Company by April 1, 2021, (ii) Loan B was delivered by Horizon to the Company by April 1, 2021, (iii) Loan C was delivered by Horizon to the Company by June 30, 2021, and (iv) Loan D was delivered by Horizon to the Company by June 30, 2021. The Company may only use the proceeds of the Term Loans for working capital or general corporate purposes as contemplated by the Loan and Security Agreement. On April 1, 2021, the Company drew down $5 million. On June 22, 2021, the Company drew down another $5 million under this facility. The Company has incurred significant losses and has an accumulated deficit of $72.7 million as of June 30, 2021. F-star expects to incur substantial losses in the foreseeable future as it conducts and expands its research and development activities and clinical trial activities. As of August 13, 2021, the date of issuance of the consolidated financial statements, the Company’s cash and cash equivalents will be sufficient to fund its current operating plan and planned capital expenditures for at least the next 12 months. The Company may continue to seek additional funding through public equity, private equity, debt financing, collaboration partnerships, or other sources. There are no assurances, however, that the Company will be successful in raising additional working capital, or if it is able to raise additional working capital, it may be unable to do so on commercially favorable terms. The Company’s failure to raise future capital or enter into other such arrangements if and when needed would have a negative impact on its business, results of operations and financial condition and its ability to develop its product candidates. Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”). The accompanying interim financial statements as of June 30, 2021, and for the six and three months ended June 30, 2021 and 2020, and related interim information contained within the notes to the financial statements, are unaudited. In management’s opinion, the unaudited interim consolidated financial statements have been prepared on the same basis as the Company’s audited financial statements and include all adjustments (including normal recurring adjustments) necessary for the fair presentation of the Company’s financial position as of June 30, 2021, results of operations for the three and six months ended June 30, 2021 and 2020, statement of stockholders’ equity for the three and six months ended June 30, 2021 and 2020 and its cash flows for the six months ended June 30, 2021 and 2020. These interim financial statements should be read in conjunction with the Company’s audited financial statements and accompanying notes contained in the Company’s Annual Report on Form 10-K Principles of Consolidation The Company’s financial statements have been prepared in conformity with U.S. GAAP. Any reference in these notes to applicable guidance is meant to refer to the authoritative U.S. GAAP as found in the ASC and Accounting Standards Updates (“ASU”) of the FASB. The accompanying consolidated financial statements include the accounts of F-star Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of expenses during the reporting years. Significant estimates and assumptions reflected in these consolidated financial statements include, but are not limited to, the fair value of the assets and liabilities acquired in the transaction between Spring Bank and F-star Concentrations of credit risk and of significant suppliers Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash and cash equivalents. The Company maintains its cash and cash equivalents in financial institutions in amounts that could exceed government-insured limits. The Company does not believe it is subject to additional credit risks beyond those normally associated with commercial banking relationships. The Company is dependent on contract research organizations to provide its clinical trials and third-party manufacturers to supply products for research and development activities in its programs. In particular, the Company relies and expects to continue to rely on a small number of manufacturers to supply its requirements for supplies and raw materials related to these programs. These programs could be adversely affected by a significant interruption in these manufacturing services or the availability of raw materials. Property, plant and equipment Property, plant and equipment are stated at cost, less accumulated depreciation. Depreciation expense is recognized using the straight-line method over the estimated useful lives of the respective assets as follows: Estimated Useful Economic Life Leasehold property improvements, right of use assets Lesser of lease term or useful life Laboratory equipment 5 years Furniture and office equipment 3 years Leases The Company determines if an arrangement is a lease at inception. Operating leases are included in right-of-use ROU assets represent the Company’s right to us e Impairment of Long-Lived Assets Long-lived assets to be held and used are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. When such events occur, the Company compares the carrying amounts of the assets to their undiscounted expected future cash flows. If the undiscounted cash flows are insufficient to recover the carrying value, an impairment loss is recorded for the difference between the carrying value and fair value of the asset. As of June 30, 2021, no such impairment has been recorded. License and collaboration arrangements and revenue recognition The Company’s revenues are generated primarily through license and collaboration agreements with pharmaceutical and biotechnology companies. The terms of these arrangements may include (i) the grant of intellectual property rights (IP licenses) to therapeutic drug candidates against specified targets, developed using the Company’s proprietary mAb 2 The terms of these arrangements typically include payment to the Company of one or more of the following: non-refundable, The Company has adopted FASB ASC Topic 606, Revenue from Contracts with Customers Under ASC 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity expects to receive in exchange for those goods or services. In determining the appropriate amount of revenue to be recognized under ASC 606, the Company performs the following steps: (i) identification of the promised goods or services in the contract; (ii) determination as to whether the promised goods or services are performance obligations including whether they are distinct in the context of the contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue when (or as) the Company satisfies each performance obligation. As part of the accounting for these arrangements, the Company must make significant judgments, including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each performance obligation. Once a contract is determined to be within the scope of ASC 606, the Company assesses the goods or services promised within the contract and determines those that are performance obligations. Arrangements that include rights to additional goods or services that are exercisable at a customer’s discretion are generally considered options. The Company assesses if these options provide a material right to the customer and if so, they are considered performance obligations. Performance obligations are promised goods or services in a contract to transfer a distinct good or service to the customer. The promised goods or services in the Company’s contracts with customers primarily consist of license rights to the Company’s intellectual property for research and development, research and development services, options to acquire additional research and development services, and options to obtain additional licenses, such as a commercialization license for a potential product candidate. Promised goods or services are considered distinct when: (i) the customer can benefit from the good or service on its own or together with other readily available resources; and (ii) the promised good or service is separately identifiable from other promises in the contract. In assessing whether promised goods or services are distinct, the Company considers factors such as the stage of development of the underlying intellectual property, the capabilities of the customer to develop the intellectual property on their own and whether the required expertise is readily available. In addition, the Company considers whether the collaboration partner can benefit from a promise for its intended purpose without the receipt of the remaining promises, whether the value of the promise is dependent on the unsatisfied promises, whether there are other vendors that could provide the remaining promises, and whether it is separately identifiable from the remaining promises. The Company estimates the transaction price based on the amount of consideration the Company expects to receive for transferring the promised goods or services in the contract. The consideration may include both fixed consideration and variable consideration. At the inception of each arrangement that includes variable consideration, the Company evaluates the amount of the potential payments and the likelihood that the payments will be received. The Company utilizes either the most likely amount method or expected value method to estimate variable consideration to include in the transaction price based on which method better predicts the amount of consideration expected to be received. The amount included in the transaction price is constrained to the amount for which it is probable that a significant reversal of cumulative revenue recognized will not occur. At the end of each subsequent reporting period, the Company re-evaluates catch-up After the transaction price is determined, it is allocated to the identified performance obligations based on the estimated standalone selling price. The Company must develop assumptions that require judgment to determine the standalone selling price for each performance obligation identified in the contract. The Company utilizes key assumptions to determine the standalone selling price, which may include other comparable transactions, pricing considered in negotiating the transaction, probabilities of technical and regulatory success and the estimated costs. Certain variable consideration is allocated specifically to one or more performance obligations in a contract when the terms of the variable consideration relate to the satisfaction of the performance obligation and the resulting amounts allocated to each performance obligation are consistent with the amounts the Company would expect to receive for each performance obligation. The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) each performance obligation is satisfied at a point in time or over time, and if over time based on the use of an input method. The Company accounts for contract modifications as a separate contract if both of the following conditions are met: (i) the scope of the contract increases because of the addition of promised goods or services that are distinct; and (ii) the price of the contract increases by an amount of consideration that reflects standalone selling prices of the additional promised goods or services and any appropriate adjustments to that price to reflect the circumstances of the particular contract. If a contract modification is deemed to not be a separate contract, then the transaction price is updated and allocated to the remaining performance obligations (both from the existing contract and the modification). Previously recognized revenue for goods and services that are not distinct from the modified goods or services is adjusted based upon an updated measure of progress for the partially satisfied performance obligations. If a contract modification is deemed to be a separate contract, any revenue recognized under the original contract is not retrospectively adjusted and any performance obligations remaining under the original contract continue to be recognized under the terms of that contract. The Company’s collaboration revenue arrangements include the following: Up-front up-front non-refundable, up-front Milestone payments: The Company’s collaboration agreements may include development and regulatory milestones. The Company evaluates whether the milestones are considered probable of being reached and estimates the amount to be included in the transaction price using the most likely amount method. The Company 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. 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’s control, such as regulatory approvals, are not considered probable of being achieved until those approvals are received. At the end of each reporting period, the Company re-evaluates n catch-up Customer Options: The Company evaluates the customer options to obtain additional items (i.e., additional license rights) for material rights, or options to acquire additional goods or services for free or at a discount. Optional future services that reflect their standalone selling prices do not provide the customer with a material right and, therefore, are not considered performance obligations and are accounted for as separate contracts. If optional future services include a material right, they are accounted for as performance obligations. The Company determines an estimated standalone selling price of any material rights for the purpose of allocating the transaction price. The Company considers factors such as 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 or expires. Royalties: For arrangements that include sales-based royalties, including milestone payments based on a level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company will recognize 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). To date, the Company has not recognized any revenue related to sales-based royalties or milestone payments based on the level of sales. Research and Development Services: The promises under the Company’s collaboration agreements may include research and development services to be performed by the Company on behalf of the partner. Payments or reimbursements 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. Research and development costs Research and development costs are expensed as incurred. Research and development expenses are comprised of costs incurred in performing research and development activities, including compensation expense, share-based compensation and benefits, facilities costs and laboratory supplies, depreciation, amortization and impairment expense, manufacturing expenses and external costs of outside vendors engaged to conduct preclinical development activities and clinical trials as well as the cost of licensing technology. Typically, upfront payments and milestone payments made for the licensing of technology are expensed as research and development in the period in which they are incurred, except for payments relating for intellectual property rights with future alternative use which will be expensed when the intellectual property is in use. Nonrefundable advance payments for goods or services to be received in the future for use in research and development activities are recorded as prepaid expenses. The prepaid amounts are expensed as the related goods are delivered or the services are performed. Warrants The Company accounts for warrants within stockholders equity or as liabilities based on the characteristics and provisions of each instrument. The Company evaluates outstanding warrants in accordance with ASC 480, Distinguishing Liabilities from Equity Derivatives and Hedging Stock-Based Compensation The Company accounts for share-based compensation in accordance with ASC 718, “Compensation – Stock Compensation”(“ASC 718”). ASC 718 requires companies to estimate the fair value of equity-based payment awards on the date of grant. The value of the portion of the award that is ultimately expected to vest is recognized as an expense over the requisite service period in the Company’s consolidated statements of operations and comprehensive loss. The Company records the expense for option awards using a graded vesting method. The Company accounts for forfeitures as they occur. For share-based awards granted to non-employee non-employee The Company reviews stock award modifications when there is an exchange of original award for a new award. The Company calculates for the incremental fair value based on the difference between the fair value of the modified award and the fair value of the original award immediately before it was modified. The Company immediately recognizes the incremental value as compensation cost for vested awards and recognizes, on a prospective basis over the remaining requisite service period, the sum of the incremental compensation cost and any remaining unrecognized compensation cost for the original award on the modification date. The fair value of stock options (“options”) on the grant date is estimated using the Black-Scholes option-pricing model using the single-option approach. The Black-Scholes option pricing model requires the use of highly subjective and complex assumptions, including the option’s expected term and the price volatility of the underlying stock, to determine the fair value of the award. Historically, given the absence of an active market for the ordinary shares of F-star F-star F-star F-star F-star The Company uses the remaining contractual term for the expected life of non-employee The Company classifies share-based compensation expense in its consolidated statements of operations and comprehensive loss in the same manner in which the award recipient’s payroll costs are classified or in which the award recipient’s service payments are classified. Fair value measurements of financial instruments The Company’s financial instruments consist of cash, accounts payable, CVRs and liability classified warrants. The carrying amounts of cash and accounts payable approximate their fair value due to the short-term nature of those financial instruments. The fair value of CVRs and the liability classified warrants are remeasured to fair value each reporting period. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC Topic 820, Fair Value Measurement ASC 820 identifies fair value as the exchange price, or 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. As a basis for considering market participant assumptions in fair value measurements, ASC 820 establishes a three-tier fair value hierarchy that distinguishes between the following: • Level 1 — Quoted prices in active markets for identical assets or liabilities. • Level 2 — Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data. • Level 3 — Unobservable inputs that are supported by little or no market activity that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques. To the extent that the 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. The carrying amounts reflected in the consolidated balance sheets for cash and cash equivalents, and other current assets, research and development incentives receivable, accounts payable and accrued liabilities and other current liabilities approximate their fair values, due to their short-term nature. Net loss per share The Company computes net loss per share in accordance with ASC Topic 260, Earnings Per Share two-class Diluted net (loss) income per share is the same as basic net (loss) income per share for the periods in which the Company had a net loss because the inclusion of outstanding common stock equivalents would be anti-dilutive. Income taxes The Company accounts for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in the consolidated financial statements or in the Company’s tax returns. Deferred tax assets and liabilities are determined on the basis of the differences between the consolidated financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Changes in deferred tax assets and liabilities are recorded in the provision for income taxes. The Company assesses the likelihood that its deferred tax assets will be recovered from future taxable income and, to the extent it believes, based upon the weight of available evidence, that it is more likely than not that all or a portion of the deferred tax assets will not be realized, a valuation allowance is established through a charge to income tax expense. Potential for recovery of deferred tax assets is evaluated by estimating the future taxable profits expected and considering prudent and feasible tax planning strategies. The Company accounts for uncertainty the consolidated financial statements by applying a two-step more-likely-than-not Research and development tax credits received in the United Kingdom are recorded as a reduction to research and development expenses. The U.K. research and development tax credit is payable to the Company after surrendering tax losses and is not dependent on current or future taxable income. As a result, it is not reflected as part of the income tax provision If, in the future, any UK research and development tax credits generated are utilized to offset a corporate income tax liability in the United Kingdom, that portion would be recorded as a benefit within the income tax provision and any refundable portion not dependent on taxable income would continue to be recorded as a reduction to research and development expenses. Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines, penalties, and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. At each reporting date, the Company evaluates whether or not a potential loss amount or a potential loss range is probable and reasonably estimable under the provisions of the authoritative guidelines that address accounting for contingencies. The Company expenses costs as incurred in relation to such legal proceedings as general and administrative expense within the consolidated statements of operations and comprehensive loss. Segment Information Operating segments are identified as components of an enterprise about which separate and discrete financial information is available for evaluation by the chief operating decision maker, the Company’s chief executive officer, in making decisions regarding resource allocation and assessing performance. The Company views its operations and manages its business in one operating segment and does not track expenses on a program-by-program Recently Issued Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments 2016-13”). 2016-13 held-to-maturity 2019-10, Financial Instruments — Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates 2016-13, No. 2016-13. 2016-13 |