2024 Q1 Form 10-K Financial Statement

#000095017024031494 Filed on March 14, 2024

View on sec.gov

Income Statement

Concept 2024 Q1 2023 Q4 2023
Revenue $0.00 $7.000M
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin $5.760M $26.54M
YoY Change 11.3% 31.69%
% of Gross Profit
Research & Development $17.17M $22.64M $85.70M
YoY Change -6.26% 52.38% 68.0%
% of Gross Profit
Depreciation & Amortization $260.0K $280.0K $1.066M
YoY Change 0.39% -198.94% 4.2%
% of Gross Profit
Operating Expenses $23.71M $28.40M $118.4M
YoY Change -3.32% 41.77% 66.41%
Operating Profit -$23.71M -$111.4M
YoY Change -3.32% 56.58%
Interest Expense $400.0K $2.329M $1.550M
YoY Change 8.11% 25.69% 30.8%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income -$32.26M -$101.9M
YoY Change 77.44% 49.28%
Income Tax $0.00 $0.00
% Of Pretax Income
Net Earnings -$21.66M -$32.26M -$101.9M
YoY Change -2.44% 77.44% 49.28%
Net Earnings / Revenue -1455.29%
Basic Earnings Per Share -$0.30 -$1.40
Diluted Earnings Per Share -$0.30 -$0.44 -$1.40
COMMON SHARES
Basic Shares Outstanding 72.80M 72.69M 72.55M
Diluted Shares Outstanding 72.80M 72.55M

Balance Sheet

Concept 2024 Q1 2023 Q4 2023
SHORT-TERM ASSETS
Cash & Short-Term Investments $179.8M $201.4M $201.4M
YoY Change -30.22% -27.19% -27.19%
Cash & Equivalents $33.03M $35.49M $35.49M
Short-Term Investments $146.8M $165.9M $165.9M
Other Short-Term Assets $2.760M $3.287M $3.287M
YoY Change 255.21% 257.28% -64.12%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets $185.6M $207.0M $207.0M
YoY Change -30.02% -27.57% -27.57%
LONG-TERM ASSETS
Property, Plant & Equipment $3.652M $3.912M $8.690M
YoY Change -21.56% 14.02% -34.03%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets $5.501M $5.595M $5.595M
YoY Change 8.12% 730.12% 730.12%
Total Long-Term Assets $13.52M $14.29M $14.29M
YoY Change -28.66% 3.17% 3.17%
TOTAL ASSETS
Total Short-Term Assets $185.6M $207.0M $207.0M
Total Long-Term Assets $13.52M $14.29M $14.29M
Total Assets $199.1M $221.2M $221.2M
YoY Change -29.93% -26.15% -26.15%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $5.059M $8.251M $8.251M
YoY Change 22.32% 232.84% 232.84%
Accrued Expenses $6.664M $6.481M $9.493M
YoY Change -2.52% 8.87% 11.45%
Deferred Revenue
YoY Change
Short-Term Debt $1.304M $0.00 $0.00
YoY Change
Long-Term Debt Due $1.304M $0.00
YoY Change
Total Short-Term Liabilities $16.16M $17.74M $17.74M
YoY Change 18.45% 61.35% 61.35%
LONG-TERM LIABILITIES
Long-Term Debt $8.829M $10.07M $10.07M
YoY Change -10.76% 2.39% 2.39%
Other Long-Term Liabilities $5.019M $5.852M $5.852M
YoY Change -38.44% -33.99% -33.99%
Total Long-Term Liabilities $8.829M $10.07M $15.92M
YoY Change -10.76% 2.39% -14.86%
TOTAL LIABILITIES
Total Short-Term Liabilities $16.16M $17.74M $17.74M
Total Long-Term Liabilities $8.829M $10.07M $15.92M
Total Liabilities $30.01M $33.67M $33.67M
YoY Change -5.3% 13.37% 13.37%
SHAREHOLDERS EQUITY
Retained Earnings -$372.4M -$350.8M
YoY Change 37.37% 40.94%
Common Stock $541.9M $538.5M
YoY Change 3.39% 3.61%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $169.1M $187.6M $187.6M
YoY Change
Total Liabilities & Shareholders Equity $199.1M $221.2M $221.2M
YoY Change -29.93% -26.15% -26.15%

Cashflow Statement

Concept 2024 Q1 2023 Q4 2023
OPERATING ACTIVITIES
Net Income -$21.66M -$32.26M -$101.9M
YoY Change -2.44% 77.44% 49.28%
Depreciation, Depletion And Amortization $260.0K $280.0K $1.066M
YoY Change 0.39% -198.94% 4.2%
Cash From Operating Activities -$22.86M -$18.98M -$81.65M
YoY Change 9.6% 19.5% 38.74%
INVESTING ACTIVITIES
Capital Expenditures $0.00 $1.000K $1.810M
YoY Change -100.0% -99.71% 14.7%
Acquisitions
YoY Change
Other Investing Activities $20.41M $27.88M $77.86M
YoY Change 22.29% -435.16% -186.69%
Cash From Investing Activities $20.41M $27.88M $76.05M
YoY Change 24.51% -421.88% -183.21%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 0.000 59.00K 638.0K
YoY Change -100.0% -88.34% -99.5%
NET CHANGE
Cash From Operating Activities -22.86M -18.98M -81.65M
Cash From Investing Activities 20.41M 27.88M 76.05M
Cash From Financing Activities 0.000 59.00K 638.0K
Net Change In Cash -2.461M 8.957M -4.963M
YoY Change -43.12% -137.26% -77.87%
FREE CASH FLOW
Cash From Operating Activities -$22.86M -$18.98M -$81.65M
Capital Expenditures $0.00 $1.000K $1.810M
Free Cash Flow -$22.86M -$18.98M -$83.46M
YoY Change 8.06% 16.98% 38.12%

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0
CY2023 us-gaap Operating Lease Impairment Loss
OperatingLeaseImpairmentLoss
2700000
CY2022 us-gaap Operating Lease Impairment Loss
OperatingLeaseImpairmentLoss
0
CY2021 us-gaap Operating Lease Impairment Loss
OperatingLeaseImpairmentLoss
0
CY2023 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
-3000
CY2022 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
-12000
CY2021 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
0
CY2023 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
-3583000
CY2022 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
5787000
CY2021 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
-1051000
CY2023 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
4921000
CY2022 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
392000
CY2021 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
0
CY2023 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
6347000
CY2022 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
1814000
CY2021 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
1217000
CY2023 kzr Increase Decrease In Operating Lease Asset And Liabilities
IncreaseDecreaseInOperatingLeaseAssetAndLiabilities
303000
CY2022 kzr Increase Decrease In Operating Lease Asset And Liabilities
IncreaseDecreaseInOperatingLeaseAssetAndLiabilities
94000
CY2021 kzr Increase Decrease In Operating Lease Asset And Liabilities
IncreaseDecreaseInOperatingLeaseAssetAndLiabilities
1042000
CY2023 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-81645000
CY2022 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-58846000
CY2021 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-42437000
CY2023 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
1810000
CY2022 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
1578000
CY2021 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
316000
CY2023 us-gaap Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
180399000
CY2022 us-gaap Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
332203000
CY2021 us-gaap Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
156378000
CY2023 us-gaap Proceeds From Sale And Maturity Of Marketable Securities
ProceedsFromSaleAndMaturityOfMarketableSecurities
258250000
CY2022 us-gaap Proceeds From Sale And Maturity Of Marketable Securities
ProceedsFromSaleAndMaturityOfMarketableSecurities
242389000
CY2021 us-gaap Proceeds From Sale And Maturity Of Marketable Securities
ProceedsFromSaleAndMaturityOfMarketableSecurities
128250000
CY2023 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
5000
CY2022 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
0
CY2021 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
0
CY2023 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
76046000
CY2022 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-91392000
CY2021 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-28444000
CY2023 kzr Proceeds From Issuance Of Common Stock Under At The Market Offerings And Warrants Net Of Issuance Costs
ProceedsFromIssuanceOfCommonStockUnderAtTheMarketOfferingsAndWarrantsNetOfIssuanceCosts
0
CY2022 kzr Proceeds From Issuance Of Common Stock Under At The Market Offerings And Warrants Net Of Issuance Costs
ProceedsFromIssuanceOfCommonStockUnderAtTheMarketOfferingsAndWarrantsNetOfIssuanceCosts
126542000
CY2021 kzr Proceeds From Issuance Of Common Stock Under At The Market Offerings And Warrants Net Of Issuance Costs
ProceedsFromIssuanceOfCommonStockUnderAtTheMarketOfferingsAndWarrantsNetOfIssuanceCosts
100970000
CY2023 kzr Debt Discount And Issuance Costs
DebtDiscountAndIssuanceCosts
469000
CY2023 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
0
CY2022 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
0
CY2021 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
9531000
CY2023 us-gaap Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans
638000
CY2022 us-gaap Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans
1319000
CY2021 us-gaap Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans
2084000
CY2023 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
638000
CY2022 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
127861000
CY2021 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
112585000
CY2023 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
-2000
CY2022 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
-49000
CY2021 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
-50000
CY2023 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-4963000
CY2022 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-22426000
CY2021 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
41654000
CY2022Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
40456000
CY2021Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
62882000
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
21228000
CY2023Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
35493000
CY2022Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
40456000
CY2021Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
62882000
CY2023 kzr Reclassification Of Employee Stock Liability To Equity Upon Vesting
ReclassificationOfEmployeeStockLiabilityToEquityUponVesting
0
CY2022 kzr Reclassification Of Employee Stock Liability To Equity Upon Vesting
ReclassificationOfEmployeeStockLiabilityToEquityUponVesting
0
CY2021 kzr Reclassification Of Employee Stock Liability To Equity Upon Vesting
ReclassificationOfEmployeeStockLiabilityToEquityUponVesting
21000
CY2023 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
0
CY2022 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
47000
CY2021 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
442000
CY2023 kzr Par Value Of Common Stock Upon Cashless Exercise Of Prefunded Warrants
ParValueOfCommonStockUponCashlessExerciseOfPrefundedWarrants
4000
CY2022 kzr Par Value Of Common Stock Upon Cashless Exercise Of Prefunded Warrants
ParValueOfCommonStockUponCashlessExerciseOfPrefundedWarrants
0
CY2021 kzr Par Value Of Common Stock Upon Cashless Exercise Of Prefunded Warrants
ParValueOfCommonStockUponCashlessExerciseOfPrefundedWarrants
0
CY2023 us-gaap Interest Paid Net
InterestPaidNet
1315000
CY2022 us-gaap Interest Paid Net
InterestPaidNet
973000
CY2021 us-gaap Interest Paid Net
InterestPaidNet
69000
CY2023 us-gaap Number Of Operating Segments
NumberOfOperatingSegments
1
CY2023Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-350800000
CY2022 us-gaap Stock Issued During Period Shares New Issues
StockIssuedDuringPeriodSharesNewIssues
11911699
CY2022 kzr Common Stock Weighted Average Purchase Price Per Share
CommonStockWeightedAveragePurchasePricePerShare
10.95
CY2021 us-gaap Stock Issued During Period Shares New Issues
StockIssuedDuringPeriodSharesNewIssues
9352359
CY2021 kzr Common Stock Weighted Average Purchase Price Per Share
CommonStockWeightedAveragePurchasePricePerShare
11.13
CY2023 us-gaap Use Of Estimates
UseOfEstimates
<p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Use of Estimates</span></p><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Significant items subject to such judgments, estimates and assumptions include the valuation of marketable securities, impairment of long-lived assets, determining the fair-value of stock-based compensation, and</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">evaluating the progress to completion of external research and development costs. Management bases its estimates on historical experience and on various other market-specific relevant assumptions that management believes to be reasonable under the circumstances. Actual results may differ from those estimates.</span></p><p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Estimates and assumptions about future events and their effects cannot be determined with certainty and therefore require the exercise of judgment. As of the date of issuance of these financial statements, the Company is not aware of any specific event or circumstance that would require the Company to update its estimates, assumptions and judgments or revise the carrying value of its assets or liabilities. These estimates may change as new events occur and additional information is obtained and are recognized in the consolidated financial statements as soon as they become known. Actual results could differ from those estimates and any such differences may be material to the Company’s consolidated financial statements.</span></p>
CY2023Q4 us-gaap Restricted Cash
RestrictedCash
0
CY2023 us-gaap Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
<p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Concentration of Credit Risk</span><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Financial </span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">instruments that potentially expose the Company to significant concentrations of credit risk consist primarily of cash, cash equivalents and marketable securities. As of December 31, 2023, the majority of the Company’s cash, cash equivalents and marketable securities were held by financial institutions in the United States,</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">while </span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">approximately $</span><span style="font-size:10pt;font-family:Times New Roman;color:#000000;white-space:pre-wrap;min-width:fit-content;">0.7</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> million was held by a financial institution in Australia. Such deposits in the United States were in excess of insured limits.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
CY2023 us-gaap Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
0
CY2023 kzr Interest Rate Of Sublease Income Per Year
InterestRateOfSubleaseIncomePerYear
0.035
CY2023 kzr Discount Rate Of Cash Flow
DiscountRateOfCashFlow
0.133
CY2023Q4 us-gaap Debt Securities Available For Sale Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
0
CY2022Q4 us-gaap Debt Securities Available For Sale Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
0
CY2023Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
76102000
CY2023Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
103000
CY2022Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
182408000
CY2022Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
722000
CY2022Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
11849000
CY2022Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
14000
CY2023Q4 kzr Debt Securities Avalilable For Sale Credit Related Losses
DebtSecuritiesAvalilableForSaleCreditRelatedLosses
0
CY2023 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
0
CY2023Q4 us-gaap Available For Sale Securities Debt Maturities Within One Year Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
186428000
CY2023Q4 us-gaap Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
186477000
CY2023Q4 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
14684000
CY2023Q4 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
14751000
CY2023Q4 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
201112000
CY2023Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
201228000
CY2023Q4 kzr Prepaid Advance For Clinical Related Costs Current
PrepaidAdvanceForClinicalRelatedCostsCurrent
1818000
CY2022Q4 kzr Prepaid Advance For Clinical Related Costs Current
PrepaidAdvanceForClinicalRelatedCostsCurrent
6760000
CY2023Q4 kzr Prepaid License Dues And Subscription
PrepaidLicenseDuesAndSubscription
506000
CY2022Q4 kzr Prepaid License Dues And Subscription
PrepaidLicenseDuesAndSubscription
376000
CY2023Q4 us-gaap Prepaid Insurance
PrepaidInsurance
712000
CY2022Q4 us-gaap Prepaid Insurance
PrepaidInsurance
741000
CY2023Q4 kzr Receivable From Collaboration
ReceivableFromCollaboration
1596000
CY2022Q4 kzr Receivable From Collaboration
ReceivableFromCollaboration
0
CY2023Q4 us-gaap Interest Receivable
InterestReceivable
695000
CY2022Q4 us-gaap Interest Receivable
InterestReceivable
774000
CY2023Q4 us-gaap Other Prepaid Expense Current
OtherPrepaidExpenseCurrent
251000
CY2022Q4 us-gaap Other Prepaid Expense Current
OtherPrepaidExpenseCurrent
510000
CY2023Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
5578000
CY2022Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
9161000
CY2023Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
9332000
CY2022Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
8033000
CY2023Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
5420000
CY2022Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
4602000
CY2023Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
3912000
CY2022Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
3431000
CY2023 us-gaap Depreciation
Depreciation
1100000
CY2022 us-gaap Depreciation
Depreciation
1000000
CY2021 us-gaap Depreciation
Depreciation
900000
CY2023Q4 kzr Impairment Charges Property Plant And Equipment
ImpairmentChargesPropertyPlantAndEquipment
200000
CY2023Q4 kzr Other Assets Advance For Clinical Related Costs Non Current
OtherAssetsAdvanceForClinicalRelatedCostsNonCurrent
4787000
CY2022Q4 kzr Other Assets Advance For Clinical Related Costs Non Current
OtherAssetsAdvanceForClinicalRelatedCostsNonCurrent
0
CY2023Q4 kzr Other Assets Deposits For Operating Lease
OtherAssetsDepositsForOperatingLease
674000
CY2022Q4 kzr Other Assets Deposits For Operating Lease
OtherAssetsDepositsForOperatingLease
674000
CY2023Q4 us-gaap Other Assets Miscellaneous
OtherAssetsMiscellaneous
134000
CY2022Q4 us-gaap Other Assets Miscellaneous
OtherAssetsMiscellaneous
0
CY2023Q4 us-gaap Other Assets
OtherAssets
5595000
CY2022Q4 us-gaap Other Assets
OtherAssets
674000
CY2023Q4 kzr Accrued Preclinical And Research Costs Current
AccruedPreclinicalAndResearchCostsCurrent
756000
CY2022Q4 kzr Accrued Preclinical And Research Costs Current
AccruedPreclinicalAndResearchCostsCurrent
1368000
CY2023Q4 kzr Accrued Clinical Costs Current
AccruedClinicalCostsCurrent
1801000
CY2022Q4 kzr Accrued Clinical Costs Current
AccruedClinicalCostsCurrent
1007000
CY2023Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
3708000
CY2022Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
3260000
CY2023Q4 us-gaap Accrued Professional Fees Current
AccruedProfessionalFeesCurrent
110000
CY2022Q4 us-gaap Accrued Professional Fees Current
AccruedProfessionalFeesCurrent
53000
CY2023Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
106000
CY2022Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
265000
CY2023Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
6481000
CY2022Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
5953000
CY2023 us-gaap Lessee Operating Lease Option To Extend
LesseeOperatingLeaseOptionToExtend
The operating lease agreement has one option to extend the lease term for a period of five years at the fair market rate at the time of the extension.
CY2023Q4 us-gaap Lessee Operating Lease Renewal Term
LesseeOperatingLeaseRenewalTerm
P5Y
CY2023Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P2Y6M29D
CY2023Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.1167
CY2023 us-gaap Operating Lease Payments
OperatingLeasePayments
2566000
CY2022 us-gaap Operating Lease Payments
OperatingLeasePayments
1032000
CY2021 us-gaap Operating Lease Payments
OperatingLeasePayments
1042000
CY2023 us-gaap Operating Lease Cost
OperatingLeaseCost
3464000
CY2023Q1 us-gaap Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights
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2236553
CY2023Q2 us-gaap Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights
ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
1557153
CY2023Q4 us-gaap Class Of Warrant Or Right Outstanding
ClassOfWarrantOrRightOutstanding
0
CY2022 us-gaap Operating Lease Cost
OperatingLeaseCost
1493000
CY2021 us-gaap Operating Lease Cost
OperatingLeaseCost
1099000
CY2023 us-gaap Variable Lease Cost
VariableLeaseCost
1502000
CY2022 us-gaap Variable Lease Cost
VariableLeaseCost
807000
CY2021 us-gaap Variable Lease Cost
VariableLeaseCost
765000
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
3890000
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
4025000
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
2418000
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
10333000
CY2023Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
1469000
CY2023Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
8864000
CY2023Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
3012000
CY2023Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
5852000
CY2023Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
8864000
CY2023 kzr Lease And Rental Expense1
LeaseAndRentalExpense1
3500000
CY2022 kzr Lease And Rental Expense1
LeaseAndRentalExpense1
1500000
CY2021 kzr Lease And Rental Expense1
LeaseAndRentalExpense1
1100000
CY2023 us-gaap Variable Lease Cost
VariableLeaseCost
1500000
CY2022 us-gaap Variable Lease Cost
VariableLeaseCost
800000
CY2021 us-gaap Variable Lease Cost
VariableLeaseCost
800000
CY2023 us-gaap Operating Lease Impairment Loss
OperatingLeaseImpairmentLoss
2700000
CY2023Q4 us-gaap Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
10000000
CY2022Q4 us-gaap Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
10000000
CY2023Q4 us-gaap Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net
DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
243000
CY2022Q4 us-gaap Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net
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