Stock option plan (Details) (USD $)
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12 Months Ended |
1 Months Ended |
0 Months Ended |
Dec. 31, 2011
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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May 31, 2013
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Mar. 05, 2013
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Weighted-average remaining contractual term |
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Outstanding at the end of the period |
5 years 8 months 27 days |
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Stock option |
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Number of options |
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Outstanding at the beginning of the period (in shares) |
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2,095,592us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
42,394us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
46,794us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Granted (in shares) |
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1,639,996us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
2,117,113us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
5,715us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Exercised (in shares) |
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(108,645)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Forfeited (in shares) |
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(193,971)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
(63,915)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
(10,115)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Outstanding at the end of the period (in shares) |
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3,432,972us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
2,095,592us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
42,394us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Vested or expected to vest at the end of the period (in shares) |
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3,239,515us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Exercisable at the end of the period (in shares) |
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764,277us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Exercise price |
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Granted (in dollars per share) |
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$ 218.40ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Weighted-average exercise price |
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Outstanding at the beginning of the period (in dollars per share) |
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$ 20.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 474.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 532.80us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Granted (in dollars per share) |
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$ 31.09us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 11.29us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 218.40us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Exercised (in dollars per share) |
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$ 11.00us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Forfeited (in dollars per share) |
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$ 32.91us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 12.57us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 604.80us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Outstanding at the end of the period (in dollars per share) |
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$ 25.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 20.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 474.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Vested or expected to vest at the end of the period (in dollars per share) |
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$ 24.15us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Exercisable at the end of the period (in dollars per share) |
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$ 31.84us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Weighted-average remaining contractual term |
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Outstanding at the end of the period |
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8 years 9 months 7 days |
9 years 3 months 15 days |
5 years 7 days |
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Vested or expected to vest at the end of the period |
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8 years 9 months 11 days |
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Exercisable at the end of the period |
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8 years 2 months 27 days |
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Valuation assumptions |
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Risk-free interest rate (as a percent) |
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1.14%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Expected volatility (as a percent) |
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87.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Expected dividend yield (as a percent) |
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0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Weighted average grant date fair value (in dollars per share) |
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$ 22.39us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 8.23us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 160.65us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Aggregate intrinsic value |
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Outstanding at the end of the period (in dollars) |
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$ 106,796us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Vested or expected to vest at the end of the period (in dollars) |
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101,391us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Exercisable at the end of the period (in dollars) |
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$ 29,809us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Stock option | Minimum |
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Stock option plan |
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Vesting period |
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3 years |
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Exercise price |
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Outstanding at the beginning of the period (in dollars per share) |
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$ 10.59ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
$ 218.40ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
$ 226.80ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Granted (in dollars per share) |
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$ 18.78ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
$ 10.59ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Exercised (in dollars per share) |
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$ 10.85ptct_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisedInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Forfeited (in dollars per share) |
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$ 10.85ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
$ 10.85ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
$ 218.40ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Outstanding at the end of the period (in dollars per share) |
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$ 10.59ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
$ 10.59ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
$ 218.40ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Valuation assumptions |
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Risk-free interest rate (as a percent) |
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0.11%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
0.85%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Expected volatility (as a percent) |
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70.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
87.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Expected term |
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5 years 6 months |
6 years |
6 years |
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Stock option | Maximum |
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Stock option plan |
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Vesting period |
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4 years |
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Exercise price |
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Outstanding at the beginning of the period (in dollars per share) |
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$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Granted (in dollars per share) |
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$ 50.45ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
$ 20.76ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Exercised (in dollars per share) |
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$ 20.71ptct_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisedInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Forfeited (in dollars per share) |
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$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Outstanding at the end of the period (in dollars per share) |
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$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
$ 1,149.60ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Valuation assumptions |
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Risk-free interest rate (as a percent) |
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2.04%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
1.90%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Expected volatility (as a percent) |
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91.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
89.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Expected term |
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6 years 3 months |
6 years 3 months |
6 years 3 months |
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2009 Equity and Long-Term Incentive Plan |
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Stock option plan |
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Number of shares available for issuance |
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0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = ptct_EquityAndLongTermIncentivePlan2009Member |
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Number of additional shares authorized |
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2,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized / us-gaap_PlanNameAxis = ptct_EquityAndLongTermIncentivePlan2009Member |
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2009 Equity and Long-Term Incentive Plan | Stock option | Minimum |
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Stock option plan |
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Stock options granted, exercise price as percentage of the fair market value of common stock at grant date |
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100.00%ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedExercisePriceAsPercentageOfFairMarketValueOfCommonStock / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_PlanNameAxis = ptct_EquityAndLongTermIncentivePlan2009Member / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Stock options granted to stockholder with specified ownership percentage, exercise price as percentage of the fair market value of common stock at grant date |
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110.00%ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedToStockholdersWithSpecifiedOwnershipPercentageExercisePriceAsPercentageOfFairMarketValueOfCommonStock / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_PlanNameAxis = ptct_EquityAndLongTermIncentivePlan2009Member / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Stockholder's specified ownership percentage |
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10.00%ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockholdersSpecifiedOwnershipPercentage / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_PlanNameAxis = ptct_EquityAndLongTermIncentivePlan2009Member / us-gaap_RangeAxis = us-gaap_MinimumMember |
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2009 Equity and Long-Term Incentive Plan | Stock option | Maximum |
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Stock option plan |
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Expiration period |
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10 years |
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2013 Stock Incentive Plan |
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Stock option plan |
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Number of shares available for issuance |
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0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = ptct_StockIncentivePlan2013Member |
2013 Stock Incentive Plan | Stock option |
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Stock option plan |
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Number of shares of restricted stock granted |
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4,613us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_PlanNameAxis = ptct_StockIncentivePlan2013Member |
2013 Stock Incentive Plan | Restricted stock |
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Stock option plan |
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Number of shares of restricted stock granted |
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735,324us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ptct_StockIncentivePlan2013Member |
2013 Stock Incentive Plan | Common stock |
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Stock option plan |
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Number of shares authorized |
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739,937us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = ptct_StockIncentivePlan2013Member / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
2009 Equity and Long Term Incentive Plan and 2013 Stock Incentive Plan | Common stock |
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Stock option plan |
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Number of shares available for issuance |
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262,044us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = ptct_Equity2009AndLongTermIncentivePlanAndStockIncentivePlan2013Member / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
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2013 Long Term Incentive Plan | Common stock |
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Stock option plan |
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Number of shares available for issuance |
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255,463us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = ptct_LongTermIncentivePlan2013Member / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
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2013 Long Term Incentive Plan | Common stock | Minimum |
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Stock option plan |
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Annual increase in the number of shares on the first day of the fiscal year |
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2,500,000ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreaseNumber / us-gaap_PlanNameAxis = ptct_LongTermIncentivePlan2013Member / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
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Annual increase in the number of shares outstanding on the first day of the fiscal year (as a percent) |
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4.00%ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreaseAsPercentageOfStockOutstanding / us-gaap_PlanNameAxis = ptct_LongTermIncentivePlan2013Member / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
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2013 Long Term Incentive Plan | Common stock | Maximum |
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Stock option plan |
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Number of shares subject to outstanding awards |
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3,040,444ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedSharesSubjectToOutstandingAwards / us-gaap_PlanNameAxis = ptct_LongTermIncentivePlan2013Member / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
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Inducement grant plan | Stock option |
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Number of options |
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Granted (in shares) |
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595,300us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_PlanNameAxis = ptct_InducementGrantPlanMember |
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Forfeited (in shares) |
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(5,900)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_PlanNameAxis = ptct_InducementGrantPlanMember |
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Exercise price |
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Granted (in dollars per share) |
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$ 37.15ptct_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_PlanNameAxis = ptct_InducementGrantPlanMember |
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