$LYEL
Lyell Immunopharma, Inc. Stock $lyel

$lyel Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000162828023005572 Filed on February 28, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$65.00K	$48.39M	$84.68M
YoY Change	-88.25%	1614.6%	695.15%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$19.28M	$26.35M	$117.3M
YoY Change	-43.99%	-17.33%	31.72%
% of Gross Profit
Research & Development	$44.63M	$45.34M	$159.2M
YoY Change	24.56%	135.1%	14.78%
% of Gross Profit
Depreciation & Amortization	$5.027M	$5.041M	$18.02M
YoY Change	20.06%	10.43%	32.27%
% of Gross Profit
Operating Expenses	$62.62M	$63.17M	$271.7M
YoY Change	-9.41%	25.44%	20.55%
Operating Profit	-$62.56M		-$187.1M
YoY Change	-8.78%		-12.91%
Interest Expense	$4.497M	$3.453M	$7.053M
YoY Change	1032.75%	969.04%	505.41%
% of Operating Profit
Other Income/Expense, Net	-$4.403M	$2.934M	$3.940M
YoY Change	-1119.21%	-6768.18%	-111.12%
Pretax Income	-$66.96M	-$8.397M	-$183.1M
YoY Change	-1.74%	-89.97%	-26.82%
Income Tax
% Of Pretax Income
Net Earnings	-$66.96M	-$8.397M	-$183.1M
YoY Change	-1.74%	-89.97%	-26.82%
Net Earnings / Revenue	-103013.85%	-17.35%	-216.24%
Basic Earnings Per Share	-$0.27		-$0.74
Diluted Earnings Per Share	-$0.27	-$0.03	-$0.74
COMMON SHARES
Basic Shares Outstanding	249.6M shares	249.3M shares	247.1M shares
Diluted Shares Outstanding	249.6M shares		247.1M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$612.8M	$640.2M	$640.2M
YoY Change	-0.19%	4.12%	4.12%
Cash & Equivalents	$109.4M	$123.6M	$123.6M
Short-Term Investments	$503.3M	$516.6M	$516.6M
Other Short-Term Assets	$11.63M	$11.14M	$11.14M
YoY Change	-1.39%	-3.04%	-3.04%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$624.4M	$651.3M	$651.3M
YoY Change	-0.21%	3.99%	3.99%
LONG-TERM ASSETS
Property, Plant & Equipment	$118.6M	$123.0M	$166.3M
YoY Change	-5.65%	2.44%	-0.22%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$90.18M	$115.0M	$115.0M
YoY Change	-66.74%	-65.2%	-65.2%
Other Assets	$4.602M	$4.680M	$4.960M
YoY Change	28.98%	34.37%	25.6%
Total Long-Term Assets	$256.1M	$286.3M	$286.3M
YoY Change	-42.64%	-42.87%	-42.87%
TOTAL ASSETS
Total Short-Term Assets	$624.4M	$651.3M	$651.3M
Total Long-Term Assets	$256.1M	$286.3M	$286.3M
Total Assets	$880.5M	$937.6M	$937.6M
YoY Change	-17.88%	-16.84%	-16.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.733M	$3.917M	$3.917M
YoY Change	-11.94%	22.14%	22.14%
Accrued Expenses	$22.42M	$28.76M	$26.40M
YoY Change	-1.19%	-1.04%	-4.3%
Deferred Revenue		$0.00
YoY Change		-100.0%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$30.80M	$37.03M	$37.03M
YoY Change	-24.99%	-20.78%	-20.78%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$4.001M	$4.113M	$67.28M
YoY Change	-10.15%	-9.92%	-55.41%
Total Long-Term Liabilities	$4.001M	$4.113M	$67.28M
YoY Change	-10.15%	-9.92%	-55.41%
TOTAL LIABILITIES
Total Short-Term Liabilities	$30.80M	$37.03M	$37.03M
Total Long-Term Liabilities	$4.001M	$4.113M	$67.28M
Total Liabilities	$96.62M	$104.3M	$104.3M
YoY Change	-49.37%	-47.22%	-47.22%
SHAREHOLDERS EQUITY
Retained Earnings	-$834.4M	-$767.5M
YoY Change	27.88%	31.34%
Common Stock	$25.00K	$25.00K
YoY Change	0.0%	4.17%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$783.8M	$833.3M	$833.3M
YoY Change
Total Liabilities & Shareholders Equity	$880.5M	$937.6M	$937.6M
YoY Change	-17.88%	-16.84%	-16.84%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	-$66.96M	-$8.397M	-$183.1M
YoY Change	-1.74%	-89.97%	-26.82%
Depreciation, Depletion And Amortization	$5.027M	$5.041M	$18.02M
YoY Change	20.06%	10.43%	32.27%
Cash From Operating Activities	-$46.21M	-$40.27M	-$169.6M
YoY Change	-3.43%	21.38%	34.3%
INVESTING ACTIVITIES
Capital Expenditures	$1.533M	$4.582M	$24.28M
YoY Change	-84.25%	-144.62%	-62.94%
Acquisitions
YoY Change
Other Investing Activities	$33.69M	$51.23M	$12.74M
YoY Change	-305.55%	-180.51%	-122.71%
Cash From Investing Activities	$32.15M	$46.65M	-$11.54M
YoY Change	-223.09%	-163.12%	-90.51%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$69.00K	863.0K	$10.64M
YoY Change	-102.7%	-88.34%	-97.35%
NET CHANGE
Cash From Operating Activities	-$46.21M	-40.27M	-$169.6M
Cash From Investing Activities	$32.15M	46.65M	-$11.54M
Cash From Financing Activities	-$69.00K	863.0K	$10.64M
Net Change In Cash	-$14.13M	7.244M	-$170.5M
YoY Change	-80.22%	-107.27%	-211.11%
FREE CASH FLOW
Cash From Operating Activities	-$46.21M	-$40.27M	-$169.6M
Capital Expenditures	$1.533M	$4.582M	$24.28M
Free Cash Flow	-$47.75M	-$44.85M	-$193.8M
YoY Change	-17.09%	95.8%	1.08%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001806952
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
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CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-40502
CY2022	dei	Entity Registrant Name EntityRegistrantName	Lyell Immunopharma, Inc.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	83-1300510
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	201 Haskins Way
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	South San Francisco
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	94080
CY2022	dei	City Area Code CityAreaCode	650
CY2022	dei	Local Phone Number LocalPhoneNumber	695-0677
CY2022	dei	Security12b Title Security12bTitle	Common Stock, $0.0001 par value per share
CY2022	dei	Trading Symbol TradingSymbol	LYEL
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
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CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	135918000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	13258000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13258000	shares
CY2022	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	84653000	usd
CY2021	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	10509000	usd
CY2020	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	7756000	usd
CY2019Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	152116000	shares
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	519163000	usd
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	-111108000	usd
CY2020	lyel	Stock Issued During Period Value Strategic Partners StockIssuedDuringPeriodValueStrategicPartners	1004000	usd
CY2020	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	4000000	usd
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	373000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	33261000	usd
CY2020	lyel	Temporary Equity Stock Repurchased During Period Shares TemporaryEquityStockRepurchasedDuringPeriodShares	547000	shares
CY2020	lyel	Temporary Equity Stock Repurchased During Period Value TemporaryEquityStockRepurchasedDuringPeriodValue	662000	usd
CY2020	lyel	Stock Repurchased During Period Convertible Preferred Stock Value StockRepurchasedDuringPeriodConvertiblePreferredStockValue	3582000	usd
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	11806000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-198000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-204472000	usd
CY2020Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	194474000	shares
CY2020Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	1010968000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	-292528000	usd
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	33198000	usd
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	391802000	usd
CY2021	lyel	Temporary Equity Conversion Of Convertible Securities Shares TemporaryEquityConversionOfConvertibleSecuritiesShares	194474000	shares
CY2021	lyel	Temporary Equity Conversion Of Convertible Securities Value TemporaryEquityConversionOfConvertibleSecuritiesValue	-1010968000	usd
CY2021	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	1010968000	usd
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	9442000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	62201000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1879000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-250219000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	929787000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	9577000	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1519000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-461000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	81924000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5976000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-183118000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	833252000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-183118000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-250219000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-204472000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	81924000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	62201000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	33261000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	18020000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13624000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4294000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Loss EquitySecuritiesFvNiUnrealizedLoss	5000000	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Loss EquitySecuritiesFvNiUnrealizedLoss	36447000	usd
CY2020	us-gaap	Equity Securities Fv Ni Unrealized Loss EquitySecuritiesFvNiUnrealizedLoss	0	usd
CY2022	lyel	Fair Value Adjustment Of Success Payment Liabilities FairValueAdjustmentOfSuccessPaymentLiabilities	-5130000	usd
CY2021	lyel	Fair Value Adjustment Of Success Payment Liabilities FairValueAdjustmentOfSuccessPaymentLiabilities	3713000	usd
CY2020	lyel	Fair Value Adjustment Of Success Payment Liabilities FairValueAdjustmentOfSuccessPaymentLiabilities	5337000	usd
CY2022	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	2923000	usd
CY2021	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	0	usd
CY2020	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	0	usd
CY2022	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	1553000	usd
CY2021	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	-911000	usd
CY2020	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	-3181000	usd
CY2022	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	1067000	usd
CY2021	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	256000	usd
CY2020	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-1323000	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	930000	usd
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1901000	usd
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-539000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-103000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-1210000	usd
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	4884000	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	usd
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	usd
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	3529000	usd
CY2022	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	0	usd
CY2021	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	308000	usd
CY2020	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	0	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1968000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	6987000	usd
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1388000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	667000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	91000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-278000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-463000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	4542000	usd
CY2020	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	6120000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-84653000	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-10508000	usd
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-7756000	usd
CY2022	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	4855000	usd
CY2021	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	13202000	usd
CY2020	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	2966000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-453000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	3675000	usd
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-169555000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-126249000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-160874000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24276000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	65504000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	51481000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	406316000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	673465000	usd
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	864909000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	419052000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	617396000	usd
CY2020	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	686322000	usd
CY2022	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	usd
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	usd
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	43448000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-11540000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-121573000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-273516000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	9577000	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	9442000	usd
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	373000	usd
CY2022	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1519000	usd
CY2021	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	0	usd
CY2020	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	0	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	461000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	usd
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	usd
CY2022	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	0	usd
CY2021	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	391802000	usd
CY2020	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	0	usd
CY2020	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	492467000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	11806000	usd
CY2022	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	usd
CY2021	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	usd
CY2020	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	4244000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	10635000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	401244000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	476790000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-170460000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	153422000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	42400000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	294294000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	140872000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	98472000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	123834000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	294294000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	140872000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	123554000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	293828000	usd
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	140406000	usd
CY2022Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	280000	usd
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	466000	usd
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	466000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	123834000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	294294000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	140872000	usd
CY2022	lyel	Cash Received For Amounts Related To Tenant Improvement Allowances CashReceivedForAmountsRelatedToTenantImprovementAllowances	4761000	usd
CY2021	lyel	Cash Received For Amounts Related To Tenant Improvement Allowances CashReceivedForAmountsRelatedToTenantImprovementAllowances	13295000	usd
CY2020	lyel	Cash Received For Amounts Related To Tenant Improvement Allowances CashReceivedForAmountsRelatedToTenantImprovementAllowances	2966000	usd
CY2022	lyel	Cash Paid For Amounts Included In Measurement Of Lease Liabilities CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities	10870000	usd
CY2021	lyel	Cash Paid For Amounts Included In Measurement Of Lease Liabilities CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities	8546000	usd
CY2020	lyel	Cash Paid For Amounts Included In Measurement Of Lease Liabilities CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities	5147000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1325000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4605000	usd
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12740000	usd
CY2022	lyel	Remeasurement Of Operating Lease Right Of Use Asset For Lease Modification RemeasurementOfOperatingLeaseRightOfUseAssetForLeaseModification	31000	usd
CY2021	lyel	Remeasurement Of Operating Lease Right Of Use Asset For Lease Modification RemeasurementOfOperatingLeaseRightOfUseAssetForLeaseModification	3873000	usd
CY2020	lyel	Remeasurement Of Operating Lease Right Of Use Asset For Lease Modification RemeasurementOfOperatingLeaseRightOfUseAssetForLeaseModification	-8958000	usd
CY2022	lyel	Consideration Received Equity Securities Without Readily Determinable Fair Value ConsiderationReceivedEquitySecuritiesWithoutReadilyDeterminableFairValue	2923000	usd
CY2021	lyel	Consideration Received Equity Securities Without Readily Determinable Fair Value ConsiderationReceivedEquitySecuritiesWithoutReadilyDeterminableFairValue	0	usd
CY2020	lyel	Consideration Received Equity Securities Without Readily Determinable Fair Value ConsiderationReceivedEquitySecuritiesWithoutReadilyDeterminableFairValue	0	usd
CY2022	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	usd
CY2021	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	1010968000	usd
CY2020	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	30475000	usd
CY2022	us-gaap	Transfer To Investments TransferToInvestments	0	usd
CY2021	us-gaap	Transfer To Investments TransferToInvestments	0	usd
CY2020	us-gaap	Transfer To Investments TransferToInvestments	6000000	usd
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:6pt;text-indent:21.6pt"><span style="background-color:#ffffff;color:#000000;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:6pt;text-indent:36pt"><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the Company’s consolidated financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect reported amounts and related disclosures. Specific accounts that require management estimates include, but are not limited to, stock-based compensation, valuation of success payments, valuation of other investments, revenue recognition and accrued expenses. 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 value of assets and liabilities that are not readily apparent from other sources. Actual results could differ materially from those estimates.</span></div>In June 2022, the Company recorded adjustments to revenue related to changes in estimates in connection with the Collaboration and License Agreement, entered into in 2019 and amended in June 2020 and December 2021 (“GSK Agreement”) with GlaxoSmithKline Intellectual Property (No. 5) Limited and Glaxo Group Limited (together, “GSK”). These changes in estimates were driven by the mutual agreement to conclude certain research activities in June 2022 and GSK’s termination of the GSK Agreement, effective December 24, 2022, both of which resulted in changes to the measure of proportional cumulative performance.
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Concentrations of Credit Risk and Off-balance Sheet Risk<span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company maintains its cash, cash equivalents and restricted cash with high quality, accredited financial institutions. These amounts, at times, may exceed federally insured limits. The Company also makes short-term investments in money market funds, U.S. Treasury securities, U.S. government agency securities and corporate debt securities, which can be subject to certain credit risk. However, the Company mitigates the risks by investing in high-grade instruments, limiting exposure to any one issuer or type of investment and monitoring the ongoing creditworthiness of the financial institutions and issuers. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has not experienced any credit losses in such accounts</span> and does not believe it is exposed to significant risk on these funds.
CY2022	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2022Q4	lyel	Cash Equivalents At Carry Value And Debt Securities Available For Sale Amortized Cost CashEquivalentsAtCarryValueAndDebtSecuritiesAvailableForSaleAmortizedCost	702094000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	7603000	usd
CY2022Q4	lyel	Cash Equivalents Fair Value Disclosure And Debt Securities Available For Sale CashEquivalentsFairValueDisclosureAndDebtSecuritiesAvailableForSale	694495000	usd
CY2022Q4	lyel	Cash Equivalents Fair Value Disclosure CashEquivalentsFairValueDisclosure	107780000	usd
CY2022Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	516598000	usd
CY2022Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	70117000	usd
CY2022Q4	lyel	Cash Equivalents Fair Value Disclosure And Debt Securities Available For Sale CashEquivalentsFairValueDisclosureAndDebtSecuritiesAvailableForSale	694495000	usd
CY2021Q4	lyel	Cash Equivalents At Carry Value And Debt Securities Available For Sale Amortized Cost CashEquivalentsAtCarryValueAndDebtSecuritiesAvailableForSaleAmortizedCost	876356000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1627000	usd
CY2021Q4	lyel	Cash Equivalents Fair Value Disclosure And Debt Securities Available For Sale CashEquivalentsFairValueDisclosureAndDebtSecuritiesAvailableForSale	874733000	usd
CY2021Q4	lyel	Cash Equivalents Fair Value Disclosure CashEquivalentsFairValueDisclosure	270236000	usd
CY2021Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	320966000	usd
CY2021Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	283531000	usd
CY2021Q4	lyel	Cash Equivalents Fair Value Disclosure And Debt Securities Available For Sale CashEquivalentsFairValueDisclosureAndDebtSecuritiesAvailableForSale	874733000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	287800000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	602900000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	278700000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	usd
CY2022Q4	us-gaap	Other Investments OtherInvestments	44900000	usd
CY2021Q4	us-gaap	Other Investments OtherInvestments	47000000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	694495000	usd
CY2022Q4	lyel	Success Payment Liabilities Fair Value Disclosure SuccessPaymentLiabilitiesFairValueDisclosure	4356000	usd
CY2022Q4	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	4356000	usd
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1067000	usd
CY2021Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	875800000	usd
CY2021Q4	lyel	Success Payment Liabilities Fair Value Disclosure SuccessPaymentLiabilitiesFairValueDisclosure	9486000	usd
CY2021Q4	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	9486000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	155407000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	134611000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	32384000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	14513000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	123023000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	120098000	usd
CY2022	us-gaap	Depreciation Depreciation	18000000	usd
CY2021	us-gaap	Depreciation Depreciation	13500000	usd
CY2020	us-gaap	Depreciation Depreciation	4200000	usd
CY2022Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	15447000	usd
CY2021Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	17296000	usd
CY2022Q4	lyel	Accrued Property And Equipment Current AccruedPropertyAndEquipmentCurrent	732000	usd
CY2021Q4	lyel	Accrued Property And Equipment Current AccruedPropertyAndEquipmentCurrent	4055000	usd
CY2022Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	930000	usd
CY2021Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2619000	usd
CY2022Q4	lyel	Accrued Research And Development Expenses Current AccruedResearchAndDevelopmentExpensesCurrent	4760000	usd
CY2021Q4	lyel	Accrued Research And Development Expenses Current AccruedResearchAndDevelopmentExpensesCurrent	2449000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4534000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1169000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	2352000	usd
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1469000	usd
CY2022Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	28755000	usd
CY2021Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	29057000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	10101000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	11347000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	11859000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	12209000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	12569000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	35525000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	93610000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	25908000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	67702000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4534000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	63168000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	67702000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	9300000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	9400000	usd
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	11200000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	5100000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	4100000	usd
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	2100000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y9M18D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y9M18D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.085
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.084
CY2021Q2	us-gaap	Convertible Preferred Stock Shares Issued Upon Conversion ConvertiblePreferredStockSharesIssuedUponConversion	194474431	shares
CY2022Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	249567343	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	242738350	shares
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	81924000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	62201000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	33261000	usd
CY2022Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	98500000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y10M9D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	41775179	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.05
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y10M2D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	142076000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	18399530	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	4.89
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3600478	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	2.66
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	2725186	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	6.28
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	53849045	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.09
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y10M2D
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	24887000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	28115416	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	4.43
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y9M10D
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	23462000	usd
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.36
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0293
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0080
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0079
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.873
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.787
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.750
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y10D
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y1M6D
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y1M9D
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.60
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.59
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	13900000	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	16100000	usd
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	300000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0510
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0639
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0471
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.2889
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.2243
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.2460
CY2022	lyel	Effective Income Tax Rate Reconciliation Collaboration Revenue Percent EffectiveIncomeTaxRateReconciliationCollaborationRevenuePercent	0.0672
CY2021	lyel	Effective Income Tax Rate Reconciliation Collaboration Revenue Percent EffectiveIncomeTaxRateReconciliationCollaborationRevenuePercent	0
CY2020	lyel	Effective Income Tax Rate Reconciliation Collaboration Revenue Percent EffectiveIncomeTaxRateReconciliationCollaborationRevenuePercent	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.0611
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.0592
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.0177
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0233
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0099
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0095
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.0015
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.0003
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.0029
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.0000
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.0000
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.0000
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	106530000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	70855000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	14317000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	8338000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	3692000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	3879000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	904000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	8224000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	4585000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	15961000	usd
CY2022Q4	lyel	Deferred Tax Assets Tax Cuts And Jobs Act Capitalized Research And Development DeferredTaxAssetsTaxCutsAndJobsActCapitalizedResearchAndDevelopment	26199000	usd
CY2021Q4	lyel	Deferred Tax Assets Tax Cuts And Jobs Act Capitalized Research And Development DeferredTaxAssetsTaxCutsAndJobsActCapitalizedResearchAndDevelopment	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	14235000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	13587000	usd
CY2022Q4	lyel	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	17656000	usd
CY2021Q4	lyel	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	18429000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	7471000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2872000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1171000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2613000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	196760000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	144758000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	180132000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	127226000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	16628000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	17532000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	11277000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	12647000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5351000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4885000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	16628000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	17532000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	usd
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	usd
CY2022Q4	lyel	Deferred Tax Assets Tax Cuts And Jobs Act Capitalized Research And Development DeferredTaxAssetsTaxCutsAndJobsActCapitalizedResearchAndDevelopment	26200000	usd
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	52900000	usd
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	56100000	usd
CY2022Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	usd
CY2021Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	796000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	396000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	396000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	400000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	400000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	796000	usd
CY2022	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1000000	usd
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0	usd
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0	usd

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$LYEL
Lyell Immunopharma, Inc. Stock $lyel

2023 Q1 Form 10-K Financial Statement

#000162828023005572 Filed on February 28, 2023

Income Statement

Balance Sheet

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$LYEL Lyell Immunopharma, Inc. Stock $lyel

2023 Q1 Form 10-K Financial Statement

#000162828023005572 Filed on February 28, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LYEL
Lyell Immunopharma, Inc. Stock $lyel