XML 46 R6.htm IDEA: XBRL DOCUMENT v2.4.1.9
CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Operating activities      
Net loss $ (43,698)us-gaap_NetIncomeLoss $ (52,859)us-gaap_NetIncomeLoss $ (20,286)us-gaap_NetIncomeLoss
Non-cash adjustments reconciling net loss to operating cash flows      
Depreciation of property and equipment 199us-gaap_Depreciation 171us-gaap_Depreciation 123us-gaap_Depreciation
Amortization of premium on investments 534us-gaap_InvestmentIncomeAmortizationOfPremium 0us-gaap_InvestmentIncomeAmortizationOfPremium 0us-gaap_InvestmentIncomeAmortizationOfPremium
Share-based compensation expense 7,050us-gaap_ShareBasedCompensation 1,823us-gaap_ShareBasedCompensation 2,009us-gaap_ShareBasedCompensation
Loss on disposal of property and equipment 0us-gaap_GainLossOnSaleOfPropertyPlantEquipment 40us-gaap_GainLossOnSaleOfPropertyPlantEquipment 0us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Change in lease incentive liability 0us-gaap_AmortizationOfLeaseIncentives (70)us-gaap_AmortizationOfLeaseIncentives 85us-gaap_AmortizationOfLeaseIncentives
Change in fair value of warrant liability 4,517us-gaap_FairValueAdjustmentOfWarrants 19,799us-gaap_FairValueAdjustmentOfWarrants 0us-gaap_FairValueAdjustmentOfWarrants
Change in fair value adjustment of share-based compensation liability 0mrtx_FairValueAdjustmentOfShareBasedLiability 1,369mrtx_FairValueAdjustmentOfShareBasedLiability 0mrtx_FairValueAdjustmentOfShareBasedLiability
Change in restructuring costs 13us-gaap_RestructuringCosts 0us-gaap_RestructuringCosts 0us-gaap_RestructuringCosts
Changes in operating assets and liabilities      
Other current assets (1,209)us-gaap_IncreaseDecreaseInOtherCurrentAssets 340us-gaap_IncreaseDecreaseInOtherCurrentAssets (15)us-gaap_IncreaseDecreaseInOtherCurrentAssets
Other assets (326)us-gaap_IncreaseDecreaseInOtherOperatingAssets 0us-gaap_IncreaseDecreaseInOtherOperatingAssets 0us-gaap_IncreaseDecreaseInOtherOperatingAssets
Accounts payable and accrued liabilities 151us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities (68)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities 1,434us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
Other liabilities 21us-gaap_IncreaseDecreaseInOtherOperatingLiabilities 0us-gaap_IncreaseDecreaseInOtherOperatingLiabilities 0us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
Cash flows used for operating activities (32,748)us-gaap_NetCashProvidedByUsedInOperatingActivities (29,455)us-gaap_NetCashProvidedByUsedInOperatingActivities (16,650)us-gaap_NetCashProvidedByUsedInOperatingActivities
Investing activities:      
Purchases of short-term investments (10,468)us-gaap_PaymentsToAcquireInvestments (68,408)us-gaap_PaymentsToAcquireInvestments (29,431)us-gaap_PaymentsToAcquireInvestments
Disposal and maturities of short-term investments 35,073us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments 39,138us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments 29,716us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments
Purchases of property and equipment (386)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (204)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (230)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Proceeds from disposal of property and equipment 0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 4us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Cash flows provided by / (used for) investing activities 24,219us-gaap_NetCashProvidedByUsedInInvestingActivities (29,470)us-gaap_NetCashProvidedByUsedInInvestingActivities 55us-gaap_NetCashProvidedByUsedInInvestingActivities
Financing activities:      
Proceeds from issuance of common stock, net of issuance costs 0us-gaap_ProceedsFromIssuanceOfCommonStock 54,196us-gaap_ProceedsFromIssuanceOfCommonStock 19,886us-gaap_ProceedsFromIssuanceOfCommonStock
Proceeds from issuance of warrants, net of issuance costs 0us-gaap_ProceedsFromIssuanceOfWarrants 0us-gaap_ProceedsFromIssuanceOfWarrants 4,927us-gaap_ProceedsFromIssuanceOfWarrants
Proceeds from exercise of common stock options and warrants 887mrtx_ProceedsfromStockOptionsandWarrantExercises 561mrtx_ProceedsfromStockOptionsandWarrantExercises 0mrtx_ProceedsfromStockOptionsandWarrantExercises
Cash flows provided by financing activities 887us-gaap_NetCashProvidedByUsedInFinancingActivities 54,757us-gaap_NetCashProvidedByUsedInFinancingActivities 24,813us-gaap_NetCashProvidedByUsedInFinancingActivities
Increase / (decrease) in cash and cash equivalents (7,642)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease (4,168)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 8,218us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Effect of exchange rate changes on cash and cash equivalents 0us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents 0us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents 303us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Cash and cash equivalents, beginning of year 14,235us-gaap_CashAndCashEquivalentsAtCarryingValue 18,403us-gaap_CashAndCashEquivalentsAtCarryingValue 9,882us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents, end of year 6,593us-gaap_CashAndCashEquivalentsAtCarryingValue 14,235us-gaap_CashAndCashEquivalentsAtCarryingValue 18,403us-gaap_CashAndCashEquivalentsAtCarryingValue
Income taxes paid 0us-gaap_IncomeTaxesPaid 35us-gaap_IncomeTaxesPaid 34us-gaap_IncomeTaxesPaid
Net exercise of warrants $ 993mrtx_StockIssuedDuringPeriodValueWarrantsExercisedNoncash $ 2,586mrtx_StockIssuedDuringPeriodValueWarrantsExercisedNoncash $ 0mrtx_StockIssuedDuringPeriodValueWarrantsExercisedNoncash