{"cik": 1787297, "entity": "PASSAGE BIO, INC.", "tags": {"OperatingIncomeLoss": [{"end": "2019-12-31", "val": -37189000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03", "start": "2019-01-01"}, {"end": "2020-12-31", "val": -112902000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03", "start": "2020-01-01"}, {"end": "2020-12-31", "val": -112902000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2020-01-01"}, {"end": "2021-12-31", "val": -185729000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2021-01-01"}, {"end": "2021-12-31", "val": -185729000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2021-01-01"}, {"end": "2022-12-31", "val": -138394000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2022-01-01"}, {"end": "2022-12-31", "val": -138394000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2022-01-01"}, {"end": "2023-12-31", "val": -108389000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2023-01-01"}, {"end": "2023-12-31", "val": -108389000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2023-01-01"}, {"end": "2024-12-31", "val": -70400000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2024-01-01"}, {"end": "2024-12-31", "val": -70400000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2024-01-01"}, {"end": "2025-12-31", "val": -49296000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2025-01-01"}], "NetIncomeLoss": [{"end": "2019-12-31", "val": -45634000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03", "start": "2019-01-01"}, {"end": "2020-12-31", "val": -112232000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03", "start": "2020-01-01"}, {"end": "2020-12-31", "val": -112232000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2020-01-01"}, {"end": "2021-12-31", "val": -185386000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2021-01-01"}, {"end": "2021-12-31", "val": -185386000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2021-01-01"}, {"end": "2022-12-31", "val": -136125000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2022-01-01"}, {"end": "2022-12-31", "val": -136125000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2022-01-01"}, {"end": "2023-12-31", "val": -102062000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2023-01-01"}, {"end": "2023-12-31", "val": -102062000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2023-01-01"}, {"end": "2024-12-31", "val": -64767000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2024-01-01"}, {"end": "2024-12-31", "val": -64767000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2024-01-01"}, {"end": "2025-12-31", "val": -45522000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2025-01-01"}], "IncomeTaxExpenseBenefit": [{"end": "2024-12-31", "val": 0, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 0, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2025-01-01"}], "DepreciationDepletionAndAmortization": [{"end": "2019-12-31", "val": 134000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03", "start": "2019-01-01"}, {"end": "2020-12-31", "val": 800000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03", "start": "2020-01-01"}, {"end": "2020-12-31", "val": 800000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2020-01-01"}, {"end": "2021-12-31", "val": 1543000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2021-01-01"}, {"end": "2021-12-31", "val": 1543000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2021-01-01"}, {"end": "2022-12-31", "val": 3679000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2022-01-01"}, {"end": "2022-12-31", "val": 3679000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2022-01-01"}, {"end": "2023-12-31", "val": 3721000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2023-01-01"}, {"end": "2023-12-31", "val": 3721000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2023-01-01"}, {"end": "2024-12-31", "val": 3081000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2024-01-01"}, {"end": "2024-12-31", "val": 3081000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 728000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2025-01-01"}], "NetCashProvidedByUsedInOperatingActivities": [{"end": "2019-12-31", "val": -39896000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03", "start": "2019-01-01"}, {"end": "2020-12-31", "val": -80520000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03", "start": "2020-01-01"}, {"end": "2020-12-31", "val": -80520000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2020-01-01"}, {"end": "2021-12-31", "val": -126879000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2021-01-01"}, {"end": "2021-12-31", "val": -126879000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2021-01-01"}, {"end": "2022-12-31", "val": -118210000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2022-01-01"}, {"end": "2022-12-31", "val": -118210000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2022-01-01"}, {"end": "2023-12-31", "val": -78264000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2023-01-01"}, {"end": "2023-12-31", "val": -78264000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2023-01-01"}, {"end": "2024-12-31", "val": -47956000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2024-01-01"}, {"end": "2024-12-31", "val": -47956000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2024-01-01"}, {"end": "2025-12-31", "val": -31509000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2025-01-01"}], "PaymentsToAcquireProductiveAssets": [{"end": "2024-12-31", "val": 34000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2024-01-01"}], "StockholdersEquity": [{"end": "2018-12-31", "val": -12173000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03"}, {"end": "2019-12-31", "val": -56253000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03"}, {"end": "2019-12-31", "val": -56253000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03"}, {"end": "2020-12-31", "val": 304714000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03"}, {"end": "2020-12-31", "val": 304714000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03"}, {"end": "2020-12-31", "val": 304714000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06"}, {"end": "2021-12-31", "val": 318657000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03"}, {"end": "2021-12-31", "val": 318657000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06"}, {"end": "2021-12-31", "val": 318657000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04"}, {"end": "2022-12-31", "val": 201366000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06"}, {"end": "2022-12-31", "val": 201366000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04"}, {"end": "2022-12-31", "val": 201366000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04"}, {"end": "2023-12-31", "val": 111283000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04"}, {"end": "2023-12-31", "val": 111283000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04"}, {"end": "2023-12-31", "val": 111283000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03"}, {"end": "2024-12-31", "val": 61261000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04"}, {"end": "2024-12-31", "val": 61261000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03"}, {"end": "2025-12-31", "val": 18755000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03"}], "CashAndCashEquivalentsAtCarryingValue": [{"end": "2019-12-31", "val": 158874000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03"}, {"end": "2020-12-31", "val": 135002000, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03"}, {"end": "2020-12-31", "val": 135002000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03"}, {"end": "2021-12-31", "val": 128965000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03"}, {"end": "2021-12-31", "val": 128965000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06"}, {"end": "2022-12-31", "val": 34601000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06"}, {"end": "2022-12-31", "val": 34601000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04"}, {"end": "2023-12-31", "val": 21709000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04"}, {"end": "2023-12-31", "val": 21709000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04"}, {"end": "2024-12-31", "val": 37573000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04"}, {"end": "2024-12-31", "val": 37573000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03"}, {"end": "2025-12-31", "val": 46303000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03"}], "WeightedAverageNumberOfDilutedSharesOutstanding": [{"end": "2020-12-31", "val": 38615967, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2020-01-01"}, {"end": "2021-12-31", "val": 53343959, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2021-01-01"}, {"end": "2021-12-31", "val": 53343959, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2021-01-01"}, {"end": "2022-12-31", "val": 54429023, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2022-01-01"}, {"end": "2022-12-31", "val": 54429023, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2022-01-01"}, {"end": "2023-12-31", "val": 54743490, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2023-01-01"}, {"end": "2023-12-31", "val": 54743490, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2023-01-01"}, {"end": "2024-12-31", "val": 60405036, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2024-01-01"}, {"end": "2024-12-31", "val": 3078665, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 3172870, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2025-01-01"}], "WeightedAverageNumberOfSharesOutstandingBasic": [{"end": "2020-12-31", "val": 38615967, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2020-01-01"}, {"end": "2021-12-31", "val": 53343959, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03", "start": "2021-01-01"}, {"end": "2021-12-31", "val": 53343959, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2021-01-01"}, {"end": "2022-12-31", "val": 54429023, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06", "start": "2022-01-01"}, {"end": "2022-12-31", "val": 54429023, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2022-01-01"}, {"end": "2023-12-31", "val": 54743490, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04", "start": "2023-01-01"}, {"end": "2023-12-31", "val": 54743490, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2023-01-01"}, {"end": "2024-12-31", "val": 60405036, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04", "start": "2024-01-01"}, {"end": "2024-12-31", "val": 3078665, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 3172870, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03", "start": "2025-01-01"}], "CommonStockSharesOutstanding": [{"end": "2019-12-31", "val": 4293039, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03"}, {"end": "2020-12-31", "val": 45614807, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03"}, {"end": "2020-12-31", "val": 45614807, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03"}, {"end": "2021-12-31", "val": 54244996, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03"}, {"end": "2021-12-31", "val": 54244996, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06"}, {"end": "2022-12-31", "val": 54614690, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06"}, {"end": "2022-12-31", "val": 54614690, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04"}, {"end": "2023-12-31", "val": 54944130, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04"}, {"end": "2023-12-31", "val": 54944130, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04"}, {"end": "2024-12-31", "val": 62061774, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04"}, {"end": "2024-12-31", "val": 3161503, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03"}, {"end": "2025-12-31", "val": 3182810, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03"}], "EntityCommonStockSharesOutstanding": [{"end": "2021-03-01", "val": 53831466, "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-03"}, {"end": "2022-03-01", "val": 54292691, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-03"}, {"end": "2023-03-02", "val": 54617523, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-06"}, {"end": "2024-02-28", "val": 55598796, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-04"}, {"end": "2025-02-27", "val": 62148274, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-04"}, {"end": "2026-02-26", "val": 3207810, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-03"}]}}