Financial Performance - Research and development expenses for the three months ended September 30, 2024, were 53.2million,adecreasefrom65.6 million in the same period in 2023[8] - Total operating expenses for the three months ended September 30, 2024, were 61.8million,comparedto2.2 million in the same period in 2023[8] - Net loss for the three months ended September 30, 2024, was 59.9million,comparedtoanetincomeof984,000 in the same period in 2023[8] - Net loss per common share (basic and diluted) for the three months ended September 30, 2024, was 0.25,comparedto0.00 in the same period in 2023[8] - Net loss for the nine months ended September 30, 2024, was 217.7million,comparedto195.1 million for the same period in 2023[16] - Net loss attributable to common stockholders for the three months ended September 30, 2024 was 59.9million,comparedtoanetincomeof984 thousand in the same period last year[73] - Basic and diluted loss per common share for the three months ended September 30, 2024 was 0.25,comparedto0.00 in the same period last year[73] - Net loss attributable to common stockholders for the nine months ended September 30, 2024 was 217.7million,comparedto195.1 million in the same period last year[73] - Basic and diluted loss per common share for the nine months ended September 30, 2024 was 0.95,comparedto1.01 in the same period last year[73] Cash and Marketable Securities - Cash, cash equivalents, and restricted cash decreased by 6.5millionto130.8 million as of September 30, 2024[16] - As of September 30, 2024, the company had cash, cash equivalents, and marketable securities totaling 199.0million[22]−Thecompany′scashequivalentstotaled103.1 million, and short-term marketable securities were valued at 72.0millionasofSeptember30,2024[41]−Thecompanyhadcash,cashequivalents,andrestrictedcashof130.8 million and marketable securities of 72.0millionasofSeptember30,2024[146]−TotalcashequivalentsasofDecember31,2023were104,468 thousand, with gross unrealized holding gains of 3thousand,resultinginanestimatedfairvalueof104,471 thousand[43] - Total short-term marketable securities as of December 31, 2023 were 71,741thousand,withgrossunrealizedholdinggainsof16 thousand and losses of 79thousand,resultinginanestimatedfairvalueof71,678 thousand[43] Stockholders' Equity and Accumulated Deficit - Total stockholders' equity as of September 30, 2024, was 292.5million,adecreasefrom287.5 million as of December 31, 2023[11] - Accumulated deficit as of September 30, 2024, was 1.56billion,anincreasefrom1.34 billion as of December 31, 2023[11] - Accumulated deficit as of September 30, 2024, was 1.6billion,includingnon−cashchargesrelatedtosuccesspaymentliabilitiesandcontingentconsideration[22]Stock−BasedCompensationandEquity−Stock−basedcompensationexpensefortheninemonthsendedSeptember30,2024,was31.2 million[16] - Stock-based compensation expense for the three months ended September 30, 2024, was 10.770million,with6.481 million allocated to research and development and 4.289milliontogeneralandadministrativeexpenses[64]−ThefairvalueofRSUsthatvestedduringtheninemonthsendedSeptember30,2024,was5.0 million[69] - The company had 28,483 stock options outstanding as of September 30, 2024, with a weighted-average exercise price of 7.26pershareandaweighted−averageremainingcontractuallifeof7.8years[66]ContingentConsiderationandSuccessPayments−TheCompanymaypayupto500.0 million in contingent consideration and 500.0millioninsuccesspaymentstoformerCobaltstockholders,contingentondevelopmentmilestonesandmarketcapitalizationthresholds[32]−AsofSeptember30,2024,theestimatedfairvalueoftheCobaltSuccessPaymentliabilitywas13.5 million, and the Cobalt Contingent Consideration was 111.9million[33][34]−TheCompanypaid12.0 million to Harvard College in March 2019 and may pay up to 175.0millioninsuccesspaymentsbasedonstockvalueincreases[36][37]−AsofSeptember30,2024,theestimatedfairvalueoftheHarvardSuccessPaymentliabilitywas1.6 million[39] - The estimated aggregate fair value of the success payment liabilities was 15.1millionasofSeptember30,2024[148]−ThefairvalueoftheCobaltContingentConsiderationasofSeptember30,2024wascalculatedusingadiscountraterangeof10.759.2 million and goodwill of 140.6million[29][30][31]−TheCompanyenteredintoalicenseagreementwithBeamTherapeuticsinOctober2021,paying50.0 million upfront and potentially up to 65.0millioninmilestonepayments[35]LeasesandProperty−Thecompanyleased79,565squarefeetofoffice,laboratory,andmanufacturingspaceinBothell,Washington,withabaserentobligationofapproximately68.8 million over the initial term expiring in February 2039[55] - The company derecognized 6.4millioninright−of−useassetsand6.2 million in lease liabilities related to vivarium spaces in Cambridge, Massachusetts, and South San Francisco, California[56] - Total lease costs for the three months ended September 30, 2024, were 8.031million,including4.728 million in operating lease costs and 2.195millioninvariableleasecosts[58]−Thepresentvalueofthecompany′soperatingleaseliabilitiesasofSeptember30,2024,was96.084 million, with a weighted-average remaining lease term of 9.7 years and a weighted-average incremental borrowing rate of 11.4%[59] - Total property and equipment, net as of September 30, 2024 was 82,826thousand,anincreasefrom70,689 thousand as of December 31, 2023, primarily due to construction in progress increasing from 26,332thousandto40,229 thousand[52] Workforce Reduction and Strategic Repositioning - The company announced a strategic repositioning in November 2024, resulting in a workforce reduction of approximately 45% and expected cash-based expenses of 6.4millionrelatedtoemployeeseveranceandbenefits[76]FinancialAssetsandLiabilities−TheCompany′stotalfinancialassetswerevaluedat175.1 million, and total financial liabilities were 127.0millionasofSeptember30,2024[41]−TotalfinancialassetsasofDecember31,2023amountedto176,568 thousand, with gross unrealized holding gains of 19thousandandlossesof79 thousand, resulting in an estimated fair value of 176,508thousand[43]−Totallong−termfinancialliabilitiesasofDecember31,2023were122,405 thousand, primarily consisting of contingent consideration of 109,606thousandandsuccesspaymentliabilitiesof12,799 thousand[43] Marketable Securities Transactions - Purchases of marketable securities for the nine months ended September 30, 2024, totaled 213.0million[16]−ProceedsfrommaturitiesofmarketablesecuritiesfortheninemonthsendedSeptember30,2024,were216.3 million[16] Public Offerings and ATM Facility - The company completed a public offering in February 2024, raising net proceeds of approximately 180.0million[20]−ThecompanycompletedapublicofferinginFebruary2024,selling21.8millionsharesofcommonstockandpre−fundedwarrantsfornetproceedsofapproximately180.0 million[61] - As of September 30, 2024, the company had sold 4.9 million shares under its ATM facility for net proceeds of 28.6million[62]TaxandValuationAllowance−Thecompanyrecordedafullvaluationallowanceagainstitsnetdeferredtaxassetsduetouncertaintysurroundingtherealizationoffavorabletaxattributesinfuturetaxreturns[70]ForeignCurrencySensitivity−Thecompanydoesnotbelieveitwillexperiencematerialimpactsfromforeigncurrencysensitivity,despitecontractingwithvendorslocatedoutsidetheUnitedStates[150]HypotheticalMarketScenarios−Ahypothetical200.9 billion to 1.1billionwouldhavedecreasedthegainrecordedinthethreemonthsendedSeptember30,2024by3.4 million to 1.5million[149]−Ahypothetical204.16 per share to 3.33persharewouldhaveincreasedthegainrecordedinthethreemonthsendedSeptember30,2024by0.5 million to 1.3million[149]ComprehensiveLoss−TotalcomprehensivelossforthethreemonthsendedSeptember30,2024,was59.9 million, compared to a comprehensive income of 1.6millioninthesameperiodin2023[10]Weighted−AverageShares−Weighted−averagenumberofcommonshares(basic)forthethreemonthsendedSeptember30,2024,was235.4million,anincreasefrom197.0millioninthesameperiodin2023[8]AccruedExpensesandLiabilities−TotalaccruedcompensationasofSeptember30,2024was18,050 thousand, a decrease from 23,722thousandasofDecember31,2023,primarilyduetoadecreaseinaccruedbonusesfrom14,379 thousand to 8,813thousand[53]−TotalaccruedexpensesandothercurrentliabilitiesasofSeptember30,2024were15,362 thousand, a decrease from 23,462thousandasofDecember31,2023,primarilyduetoadecreaseinaccruedpropertyandequipmentfrom9,200 thousand to 199thousand[53]NetCashUsedinOperatingActivities−NetcashusedinoperatingactivitiesfortheninemonthsendedSeptember30,2024,was176.0 million[16]