$SLRN
ACELYRIN, Inc. Stock $slrn

$slrn Overview Financials Valuation SEC Filings Company Website

2023 Q2 Form 10-Q Financial Statement

#000196291823000013 Filed on August 14, 2023

Income Statement

Concept	2023 Q2	2022 Q2
Revenue	$0.00	$0.00
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$12.67M	$2.176M
YoY Change	482.08%
% of Gross Profit
Research & Development	$30.03M	$12.71M
YoY Change	136.27%
% of Gross Profit
Depreciation & Amortization	$27.00K	$0.00
YoY Change
% of Gross Profit
Operating Expenses	$42.70M	$14.89M
YoY Change	186.82%
Operating Profit	-$42.70M
YoY Change
Interest Expense	$16.83M	$413.0K
YoY Change	3974.82%
% of Operating Profit
Other Income/Expense, Net	-$172.0K	-$1.000K
YoY Change	17100.0%
Pretax Income	-$26.04M	-$14.47M
YoY Change	79.9%
Income Tax
% Of Pretax Income
Net Earnings	-$26.04M	-$14.47M
YoY Change	79.9%
Net Earnings / Revenue
Basic Earnings Per Share	-$0.40	-$9.12
Diluted Earnings Per Share	-$0.40	-$9.12
COMMON SHARES
Basic Shares Outstanding	65.21M shares	1.587M shares
Diluted Shares Outstanding	65.21M shares	1.587M shares

Balance Sheet

Concept	2023 Q2	2022 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$823.0M
YoY Change
Cash & Equivalents	$556.2M	$95.96M
Short-Term Investments	$266.8M
Other Short-Term Assets	$6.723M
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$829.8M
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$1.972M
YoY Change
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$2.077M
YoY Change
Total Long-Term Assets	$5.334M
YoY Change
TOTAL ASSETS
Total Short-Term Assets	$829.8M
Total Long-Term Assets	$5.334M
Total Assets	$835.1M
YoY Change
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$9.127M
YoY Change
Accrued Expenses	$21.33M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$32.75M
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt	$0.00
YoY Change
Other Long-Term Liabilities	$1.309M
YoY Change
Total Long-Term Liabilities	$1.309M
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities	$32.75M
Total Long-Term Liabilities	$1.309M
Total Liabilities	$34.06M
YoY Change
SHAREHOLDERS EQUITY
Retained Earnings	-$309.6M
YoY Change
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$801.1M	-$70.77M
YoY Change
Total Liabilities & Shareholders Equity	$835.1M
YoY Change

Cashflow Statement

Concept	2023 Q2	2022 Q2
OPERATING ACTIVITIES
Net Income	-$26.04M	-$14.47M
YoY Change	79.9%
Depreciation, Depletion And Amortization	$27.00K	$0.00
YoY Change
Cash From Operating Activities	-$31.62M	-$28.67M
YoY Change	10.3%
INVESTING ACTIVITIES
Capital Expenditures	$1.761M
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$266.1M	-$102.6M
YoY Change	159.38%
Cash From Investing Activities	-$267.9M	-$102.6M
YoY Change	161.1%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	566.5M	125.0M
YoY Change	353.27%
NET CHANGE
Cash From Operating Activities	-31.62M	-28.67M
Cash From Investing Activities	-267.9M	-102.6M
Cash From Financing Activities	566.5M	125.0M
Net Change In Cash	267.0M	-6.286M
YoY Change	-4347.14%
FREE CASH FLOW
Cash From Operating Activities	-$31.62M	-$28.67M
Capital Expenditures	$1.761M
Free Cash Flow	-$33.38M
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	0.5071
CY2023Q2	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	0	shares
CY2023Q2	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-9.12
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-9.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-24.54
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-24.54
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42974640	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42974640	shares
	slrn	Temporary Equity Issuance Costs TemporaryEquityIssuanceCosts	26000	usd
CY2022Q1	slrn	Temporary Equity Stock Issued During Period Shares New Issues TemporaryEquityStockIssuedDuringPeriodSharesNewIssues	12228923	shares
CY2022Q1	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	124974000	usd
CY2022Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1610000	usd
CY2022Q1	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	28514641	shares
CY2022Q1	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	257594000	usd
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	-56531000	usd
CY2022Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	369000	usd
CY2022Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-138000	usd
CY2022Q2	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	28514641	shares
CY2022Q2	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	257594000	usd
CY2022Q2	us-gaap	Stockholders Equity StockholdersEquity	-70774000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-202489000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-30559000	usd
	us-gaap	Research And Development Asset Acquired Other Than Through Business Combination Written Off ResearchAndDevelopmentAssetAcquiredOtherThanThroughBusinessCombinationWrittenOff	133057000	usd
	us-gaap	Research And Development Asset Acquired Other Than Through Business Combination Written Off ResearchAndDevelopmentAssetAcquiredOtherThanThroughBusinessCombinationWrittenOff	0	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	15640000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	1979000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	911000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-62000	usd
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	10291000	usd
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	0	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	27000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	0	usd
	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	15000	usd
	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	0	usd
	slrn	Increase Decrease In Prepaid Expense And Other Assets Current IncreaseDecreaseInPrepaidExpenseAndOtherAssetsCurrent	3246000	usd
	slrn	Increase Decrease In Prepaid Expense And Other Assets Current IncreaseDecreaseInPrepaidExpenseAndOtherAssetsCurrent	2382000	usd
	slrn	Increase Decrease In Prepaid Expenses And Other Assets Noncurrent IncreaseDecreaseInPrepaidExpensesAndOtherAssetsNoncurrent	-2129000	usd
	slrn	Increase Decrease In Prepaid Expenses And Other Assets Noncurrent IncreaseDecreaseInPrepaidExpensesAndOtherAssetsNoncurrent	0	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1120000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1615000	usd
	slrn	Increase Decrease In Accrued Research And Development Expenses IncreaseDecreaseInAccruedResearchAndDevelopmentExpenses	514000	usd
	slrn	Increase Decrease In Severance Liability IncreaseDecreaseInSeveranceLiability	2291000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-56949000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-28666000	usd
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	10007000	usd
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	usd
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	10000000	usd
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	266112000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	107124000	usd
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	47773000	usd
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	4530000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1999000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	0	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-220331000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-102594000	usd
	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	574664000	usd
	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	0	usd
	us-gaap	Proceeds From Issuance Of Redeemable Convertible Preferred Stock ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock	0	usd
	us-gaap	Proceeds From Issuance Of Redeemable Convertible Preferred Stock ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock	124974000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8325000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	566339000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	124974000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	289059000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-6286000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	556169000	usd
CY2022Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	95956000	usd
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	396593000	usd
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	usd
	slrn	Offering Costs Incurred During Noncash Or Partial Noncash Transaction OfferingCostsIncurredDuringNoncashOrPartialNoncashTransaction	530000	usd
	slrn	Offering Costs Incurred During Noncash Or Partial Noncash Transaction OfferingCostsIncurredDuringNoncashOrPartialNoncashTransaction	0	usd
CY2023Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-309600000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-56900000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-28700000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	823000000	usd
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:12pt;padding-left:27pt;text-align:justify"><span style="color:#231f20;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:12pt;text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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 financial statements, and the reported amounts of expenses during the reporting period. On an ongoing basis, the Company evaluates estimates and assumptions, including but not limited to those related to the fair value of its derivative tranche liability, the fair value of its common stock, stock-based compensation expense, accruals for research and development expenses, valuation of deferred tax assets, and uncertain income tax positions. Management bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ materially from those estimates.</span></div>
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:12pt;padding-left:27pt;text-align:justify"><span style="color:#231f20;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Concentration of Credit Risk</span></div><div style="margin-top:12pt;text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cash and cash equivalents, and short-term marketable securities are financial instruments that potentially subject the Company to concentrations of credit risk. As of June 30, 2023, cash consists of cash deposited with two financial institutions, and account balances exceed federally insured limits.</span></div>The Company also has investments in money market funds, U.S. Treasury obligations, corporate debt obligations, and federal agency obligations, which can be subject to certain credit risks. The Company mitigates the risks by investing in high-grade financial instruments, limiting its exposure to any one issuer and monitoring the ongoing creditworthiness of the financial institutions and issuers. The Company has not experienced any losses on its financial instruments.
CY2023Q2	slrn	Concentration Risk Credit Risk Number Of Financial Institutions With Cash Deposits ConcentrationRiskCreditRiskNumberOfFinancialInstitutionsWithCashDeposits	2	institution
CY2023Q2	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	799852000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	285733000	usd
CY2022Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	10291000	usd
CY2022Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	10291000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	799852000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	285733000	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	10291000	usd
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	10291000	usd
CY2023Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	799808000	usd
CY2023Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	87000	usd
CY2023Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	43000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	799852000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	285819000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	86000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	285733000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss Current DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLossCurrent	100000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss Current DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLossCurrent	100000	usd
	us-gaap	Debt Securities Available For Sale Accrued Interest Writeoff DebtSecuritiesAvailableForSaleAccruedInterestWriteoff	0	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Accrued Interest Writeoff DebtSecuritiesAvailableForSaleAccruedInterestWriteoff	0	usd
CY2023Q2	slrn	Prepaid Research And Development Expenses Current PrepaidResearchAndDevelopmentExpensesCurrent	3652000	usd
CY2022Q4	slrn	Prepaid Research And Development Expenses Current PrepaidResearchAndDevelopmentExpensesCurrent	682000	usd
CY2023Q2	us-gaap	Prepaid Insurance PrepaidInsurance	2325000	usd
CY2022Q4	us-gaap	Prepaid Insurance PrepaidInsurance	86000	usd
CY2023Q2	slrn	Prepaid Other Services Current PrepaidOtherServicesCurrent	746000	usd
CY2022Q4	slrn	Prepaid Other Services Current PrepaidOtherServicesCurrent	288000	usd
CY2023Q2	us-gaap	Interest Receivable Current InterestReceivableCurrent	79000	usd
CY2022Q4	us-gaap	Interest Receivable Current InterestReceivableCurrent	138000	usd
CY2023Q2	slrn	Research And Development Credit Receivable Current ResearchAndDevelopmentCreditReceivableCurrent	0	usd
CY2022Q4	slrn	Research And Development Credit Receivable Current ResearchAndDevelopmentCreditReceivableCurrent	250000	usd
CY2023Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	6802000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	1444000	usd
CY2023Q2	slrn	Prepaid Research And Development Expense Noncurrent PrepaidResearchAndDevelopmentExpenseNoncurrent	2043000	usd
CY2022Q4	slrn	Prepaid Research And Development Expense Noncurrent PrepaidResearchAndDevelopmentExpenseNoncurrent	1964000	usd
CY2023Q2	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	34000	usd
CY2022Q4	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	0	usd
CY2023Q2	us-gaap	Deferred Costs DeferredCosts	0	usd
CY2022Q4	us-gaap	Deferred Costs DeferredCosts	774000	usd
CY2023Q2	slrn	Asset Acquisition Transaction Costs Noncurrent AssetAcquisitionTransactionCostsNoncurrent	0	usd
CY2022Q4	slrn	Asset Acquisition Transaction Costs Noncurrent AssetAcquisitionTransactionCostsNoncurrent	1121000	usd
CY2023Q2	us-gaap	Prepaid Expense And Other Assets Noncurrent PrepaidExpenseAndOtherAssetsNoncurrent	2077000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Noncurrent PrepaidExpenseAndOtherAssetsNoncurrent	3859000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1999000	usd
CY2023Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	27000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1972000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	0	usd
CY2023Q2	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	2205000	usd
CY2022Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	3068000	usd
CY2023Q2	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	426000	usd
CY2022Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	808000	usd
CY2023Q2	slrn	Accrued Liabilities And Current Liabilities Other AccruedLiabilitiesAndCurrentLiabilitiesOther	447000	usd
CY2022Q4	slrn	Accrued Liabilities And Current Liabilities Other AccruedLiabilitiesAndCurrentLiabilitiesOther	361000	usd
CY2023Q2	slrn	Accrued Compensation And Other Current Liabilities AccruedCompensationAndOtherCurrentLiabilities	3078000	usd
CY2022Q4	slrn	Accrued Compensation And Other Current Liabilities AccruedCompensationAndOtherCurrentLiabilities	4237000	usd
CY2023Q2	us-gaap	Deferred Offering Costs DeferredOfferingCosts	0	usd
CY2022Q4	us-gaap	Deferred Offering Costs DeferredOfferingCosts	200000	usd
CY2023Q1	slrn	Lessee Operating Lease Square Feet Leased LesseeOperatingLeaseSquareFeetLeased	10012	sqft
CY2022Q2	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P65M
CY2023Q1	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P3Y
CY2023Q1	slrn	Lessee Operating Lease Monthly Payments LesseeOperatingLeaseMonthlyPayments	30500	usd
CY2023Q1	slrn	Lessee Operating Lease Annual Rent Increase Percent LesseeOperatingLeaseAnnualRentIncreasePercent	0.030
CY2023Q1	slrn	Lessee Operating Lease Rent Abatement Term LesseeOperatingLeaseRentAbatementTerm	P6M
CY2023Q2	us-gaap	Security Deposit SecurityDeposit	34000	usd
CY2023Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1300000	usd
CY2023Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1300000	usd
CY2023Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	100000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	100000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	31000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	375000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	386000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	398000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	409000	usd
CY2023Q2	slrn	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	280000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1879000	usd
CY2023Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	518000	usd
CY2023Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	1361000	usd
CY2023Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	52000	usd
CY2023Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1309000	usd
CY2023Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P62M
CY2023Q2	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.12
	us-gaap	Variable Lease Payment VariableLeasePayment	100000	usd
CY2023Q2	slrn	Temporary Equity Convertible Conversion Ratio TemporaryEquityConvertibleConversionRatio	1
CY2022Q4	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	104461636	shares
CY2022Q4	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	40743522	shares
CY2022Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	40743522	shares
CY2022Q4	us-gaap	Temporary Equity Liquidation Preference TemporaryEquityLiquidationPreference	408000000	usd
CY2022Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	396593000	usd
CY2022Q4	slrn	Temporary Equity Convertible Conversion Ratio TemporaryEquityConvertibleConversionRatio	0.01
CY2023Q2	slrn	Temporary Equity Voting Rights Number Of Directors TemporaryEquityVotingRightsNumberOfDirectors	3	director
CY2023Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	10100000	usd
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	10300000	usd
CY2023Q2	slrn	Conversion Of Stock Ratio ConversionOfStockRatio	1
CY2023Q2	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	20726903	shares
CY2022Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	48458034	shares
CY2023Q2	slrn	Conversion Of Stock Ratio ConversionOfStockRatio	1
CY2020Q3	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	2839749	shares
CY2020Q3	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	0.00002
CY2023Q2	slrn	Share Based Compensation Arrangement By Share Based Payment Award And Cash Based Compensation Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardAndCashBasedCompensationMaximum	750000	usd
CY2023Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.7530
CY2023Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.9192
CY2022Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.9999
CY2022Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	1.0033
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.7530
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.9220
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.9999
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	1.0281
CY2023Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2022Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2023Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0330
CY2023Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0347
CY2022Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0325
CY2022Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0326
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0330
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0412
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0169
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0326
CY2023Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8501000	usd
CY2022Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	369000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15640000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1979000	usd
CY2023Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8501000	usd
CY2022Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	369000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15640000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1979000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	-26039000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	-14474000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-202489000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-30559000	usd
CY2023Q2	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	65652851	shares
CY2022Q2	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	3358972	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	43461494	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	3222765	shares
CY2023Q2	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	442734	shares
CY2022Q2	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	1771501	shares
	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	486854	shares
	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	1977465	shares
CY2023Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65210117	shares
CY2023Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65210117	shares
CY2022Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1587471	shares
CY2022Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1587471	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42974640	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42974640	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1245300	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1245300	shares
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.40
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.40
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-9.12
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-9.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-4.71
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-4.71
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-24.54
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-24.54
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	10152817	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	32854084	shares
	slrn	Valuation Allowance Deferred Tax Assets Minimum Percentage ValuationAllowanceDeferredTaxAssetsMinimumPercentage	1
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0

Files In Submission

Name	View Source	Status
0001962918-23-000013-index-headers.html	Edgar Link	pending
0001962918-23-000013-index.html	Edgar Link	pending
0001962918-23-000013.txt	Edgar Link	pending
0001962918-23-000013-xbrl.zip	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
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slrn-20230630_def.xml	Edgar Link	unprocessable
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slrn-20230630_htm.xml	Edgar Link	completed
slrn-20230630_cal.xml	Edgar Link	unprocessable

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$SLRN
ACELYRIN, Inc. Stock $slrn

2023 Q2 Form 10-Q Financial Statement

#000196291823000013 Filed on August 14, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SLRN ACELYRIN, Inc. Stock $slrn

2023 Q2 Form 10-Q Financial Statement

#000196291823000013 Filed on August 14, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SLRN
ACELYRIN, Inc. Stock $slrn