$LYEL
Lyell Immunopharma, Inc. Stock $lyel

$lyel Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000162828022007708 Filed on March 29, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$2.822M	$10.65M	$2.312M
YoY Change	22.06%	37.31%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$31.87M	$89.06M	$14.87M
YoY Change	114.36%	89.96%
% of Gross Profit
Research & Development	$19.29M	$138.7M	$35.09M
YoY Change	-45.04%	-23.9%
% of Gross Profit
Depreciation & Amortization	$4.565M	$13.62M	$1.452M
YoY Change	214.39%	217.28%
% of Gross Profit
Operating Expenses	$50.36M	$225.4M	$41.84M
YoY Change	20.37%	2.61%
Operating Profit		-$214.8M
YoY Change		1.34%
Interest Expense	$323.0K	$1.165M	$621.0K
YoY Change	-47.99%	-80.38%
% of Operating Profit
Other Income/Expense, Net	-$44.00K	-$35.44M	$46.00K
YoY Change	-195.65%	-574.79%
Pretax Income	-$83.71M	-$250.2M	-$38.86M
YoY Change	115.42%	22.37%
Income Tax
% Of Pretax Income
Net Earnings	-$83.71M	-$250.2M	-$38.86M
YoY Change	115.42%	22.37%
Net Earnings / Revenue	-2966.19%	-2349.47%	-1680.67%
Basic Earnings Per Share		-$1.84
Diluted Earnings Per Share	-$332.7K	-$1.84	-$160.0K
COMMON SHARES
Basic Shares Outstanding	240.5M	135.9K shares
Diluted Shares Outstanding		135.9K shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$614.8M	$614.8M
YoY Change		0.36%
Cash & Equivalents	$293.8M	$293.8M	$140.4M
Short-Term Investments	$321.0M	$321.0M
Other Short-Term Assets	$11.49M	$11.49M
YoY Change		133.2%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$626.3M	$626.3M	$617.5M
YoY Change	1.42%	1.42%
LONG-TERM ASSETS
Property, Plant & Equipment	$120.1M	$166.6M	$77.05M
YoY Change	55.88%	34.33%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$330.5M	$330.5M
YoY Change		102.23%
Other Assets	$3.483M	$3.949M	$2.769M
YoY Change	25.79%	22.07%
Total Long-Term Assets	$501.1M	$501.1M	$290.7M
YoY Change	72.36%	72.36%
TOTAL ASSETS
Total Short-Term Assets	$626.3M	$626.3M	$617.5M
Total Long-Term Assets	$501.1M	$501.1M	$290.7M
Total Assets	$1.127B	$1.127B	$908.3M
YoY Change	24.13%	24.13%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$3.207M	$3.207M	$9.396M
YoY Change	-65.87%	-65.87%
Accrued Expenses	$29.06M	$27.59M
YoY Change		2.36%
Deferred Revenue	$4.988M		$6.095M
YoY Change	-18.16%
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$46.74M	$46.74M	$49.29M
YoY Change	-5.17%	-5.17%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$4.566M	$150.9M	$532.0K
YoY Change	758.27%	7.35%
Total Long-Term Liabilities	$4.566M	$150.9M	$532.0K
YoY Change	758.27%	7.35%
TOTAL LIABILITIES
Total Short-Term Liabilities	$46.74M	$46.74M	$49.29M
Total Long-Term Liabilities	$4.566M	$150.9M	$532.0K
Total Liabilities	$197.6M	$197.6M	$189.8M
YoY Change	4.1%	4.1%
SHAREHOLDERS EQUITY
Retained Earnings	-$584.4M		-$334.1M
YoY Change	74.88%
Common Stock	$24.00K		$41.36M
YoY Change	-99.94%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$929.8M	$929.8M	-$292.5M
YoY Change
Total Liabilities & Shareholders Equity	$1.127B	$1.127B	$908.3M
YoY Change	24.13%	24.13%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	-$83.71M	-$250.2M	-$38.86M
YoY Change	115.42%	22.37%
Depreciation, Depletion And Amortization	$4.565M	$13.62M	$1.452M
YoY Change	214.39%	217.28%
Cash From Operating Activities	-$33.17M	-$126.2M	-$26.73M
YoY Change	24.09%	-21.52%
INVESTING ACTIVITIES
Capital Expenditures	-$10.27M	$65.50M	-$24.88M
YoY Change	-58.73%	27.24%
Acquisitions
YoY Change
Other Investing Activities	-$63.63M	-$56.07M	$57.27M
YoY Change	-211.12%	-74.75%
Cash From Investing Activities	-$73.90M	-$121.6M	$32.39M
YoY Change	-328.18%	-55.55%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$0.00
YoY Change		-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	7.399M	$401.2M	338.0K
YoY Change	2089.05%	-15.84%
NET CHANGE
Cash From Operating Activities	-33.17M	-$126.2M	-26.73M
Cash From Investing Activities	-73.90M	-$121.6M	32.39M
Cash From Financing Activities	7.399M	$401.2M	338.0K
Net Change In Cash	-99.68M	$153.4M	5.993M
YoY Change	-1763.21%	261.84%
FREE CASH FLOW
Cash From Operating Activities	-$33.17M	-$126.2M	-$26.73M
Capital Expenditures	-$10.27M	$65.50M	-$24.88M
Free Cash Flow	-$22.91M	-$191.8M	-$1.851M
YoY Change	1137.44%	-9.7%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2021	dei	Entity File Number EntityFileNumber	001-40502
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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	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	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	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	308000	USD
CY2020	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	0	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	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	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	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	0	shares
CY2021Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	0	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	929787000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-250219000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-204472000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-129377000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	62201000	USD
CY2019	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	0	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	33261000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	15732000	USD
CY2021	us-gaap	Impairment Of Investments ImpairmentOfInvestments	36447000	USD
CY2020	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2019	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13624000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4294000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1256000	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
CY2019	lyel	Fair Value Adjustment Of Success Payment Liabilities FairValueAdjustmentOfSuccessPaymentLiabilities	436000	USD
CY2021	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	256000	USD
CY2020	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-1323000	USD
CY2019	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	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
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
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	5767000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	91000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-278000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1709000	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
CY2019	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	9755000	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
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	102917000	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
CY2019	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	2194000	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
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	0	USD
CY2019	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	-3127000	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
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	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
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	1518000	USD
CY2021	lyel	Gain Loss On Remeasurement Of Convertible Preferred Stock Tranche Liabilities GainLossOnRemeasurementOfConvertiblePreferredStockTrancheLiabilities	0	USD
CY2020	lyel	Gain Loss On Remeasurement Of Convertible Preferred Stock Tranche Liabilities GainLossOnRemeasurementOfConvertiblePreferredStockTrancheLiabilities	0	USD
CY2019	lyel	Gain Loss On Remeasurement Of Convertible Preferred Stock Tranche Liabilities GainLossOnRemeasurementOfConvertiblePreferredStockTrancheLiabilities	35444000	USD
CY2021	lyel	Expense In Connection With Equity Issuances ExpenseInConnectionWithEquityIssuances	0	USD
CY2020	lyel	Expense In Connection With Equity Issuances ExpenseInConnectionWithEquityIssuances	0	USD
CY2019	lyel	Expense In Connection With Equity Issuances ExpenseInConnectionWithEquityIssuances	3566000	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
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	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
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	39474000	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
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	16047000	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
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	610842000	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
CY2019	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	238456000	USD
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	USD
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	43448000	USD
CY2019	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	34000000	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
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-422433000	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
CY2019	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	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
CY2019	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	351341000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	9442000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	373000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	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
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	185000	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
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12740000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3185000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2019	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	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
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	351156000	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
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-31803000	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
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	130275000	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
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
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	96674000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	30475000	USD
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	466000	USD
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	466000	USD
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1798000	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
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
CY2019	lyel	Cash Received For Amounts Related To Tenant Improvement Allowances CashReceivedForAmountsRelatedToTenantImprovementAllowances	2194000	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
CY2019	lyel	Cash Paid For Amounts Included In Measurement Of Lease Liabilities CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities	1464000	USD
CY2021	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	1010968000	USD
CY2020	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	USD
CY2019	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4605000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	23656000	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
CY2019	lyel	Remeasurement Of Operating Lease Right Of Use Asset For Lease Modification RemeasurementOfOperatingLeaseRightOfUseAssetForLeaseModification	0	USD
CY2021	us-gaap	Transfer To Investments TransferToInvestments	0	USD
CY2020	us-gaap	Transfer To Investments TransferToInvestments	6000000	USD
CY2019	us-gaap	Transfer To Investments TransferToInvestments	0	USD
CY2021	lyel	Non Cash Deemed Dividends On Convertible Preferred Stock NonCashDeemedDividendsOnConvertiblePreferredStock	0	USD
CY2020	lyel	Non Cash Deemed Dividends On Convertible Preferred Stock NonCashDeemedDividendsOnConvertiblePreferredStock	0	USD
CY2019	lyel	Non Cash Deemed Dividends On Convertible Preferred Stock NonCashDeemedDividendsOnConvertiblePreferredStock	1144000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:12pt;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, 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>
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	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
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:12pt;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%">Concentrations of Credit Risk and Off-balance Sheet Risk</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 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 </span></div>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. The Company has not experienced any credit losses in such accounts and does not believe it is exposed to significant risk on these funds.
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
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
CY2020Q4	lyel	Cash Equivalents At Carry Value And Debt Securities Available For Sale Amortized Cost CashEquivalentsAtCarryValueAndDebtSecuritiesAvailableForSaleAmortizedCost	669831000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	268000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	12000	USD
CY2020Q4	lyel	Cash Equivalents Fair Value Disclosure And Debt Securities Available For Sale CashEquivalentsFairValueDisclosureAndDebtSecuritiesAvailableForSale	670087000	USD
CY2020Q4	lyel	Cash Equivalents Fair Value Disclosure CashEquivalentsFairValueDisclosure	117879000	USD
CY2020Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	671410000	USD
CY2020Q4	lyel	Success Payment Liabilities Fair Value Disclosure SuccessPaymentLiabilitiesFairValueDisclosure	5773000	USD
CY2020Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	472213000	USD
CY2020Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	79995000	USD
CY2020Q4	lyel	Cash Equivalents Fair Value Disclosure And Debt Securities Available For Sale CashEquivalentsFairValueDisclosureAndDebtSecuritiesAvailableForSale	670087000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	602900000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	602900000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	132600000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	132600000	USD
CY2021Q4	us-gaap	Other Investments OtherInvestments	47000000	USD
CY2020Q4	us-gaap	Other Investments OtherInvestments	83400000	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
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1323000	USD
CY2020Q4	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	5773000	USD
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$LYEL
Lyell Immunopharma, Inc. Stock $lyel

2021 Q4 Form 10-K Financial Statement

#000162828022007708 Filed on March 29, 2022

Income Statement

Balance Sheet

Cashflow Statement

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Files In Submission

$LYEL Lyell Immunopharma, Inc. Stock $lyel

2021 Q4 Form 10-K Financial Statement

#000162828022007708 Filed on March 29, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LYEL
Lyell Immunopharma, Inc. Stock $lyel