{"cik": 1501796, "entity": "Aura Biosciences, Inc.", "tags": {"OperatingIncomeLoss": [{"end": "2020-12-31", "val": -22206000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2020-01-01"}, {"end": "2021-12-31", "val": -35250000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2021-01-01"}, {"end": "2021-12-31", "val": -35250000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2021-01-01"}, {"end": "2022-12-31", "val": -60295000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2022-01-01"}, {"end": "2022-12-31", "val": -60295000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2022-01-01"}, {"end": "2023-12-31", "val": -84991000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2023-01-01"}, {"end": "2023-12-31", "val": -84991000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2023-01-01"}, {"end": "2024-12-31", "val": -96116000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2024-01-01"}, {"end": "2024-12-31", "val": -96116000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2024-01-01"}, {"end": "2025-12-31", "val": -112791000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2025-01-01"}], "NetIncomeLoss": [{"end": "2020-12-31", "val": -22206000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2020-01-01"}, {"end": "2021-12-31", "val": -35251000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2021-01-01"}, {"end": "2021-12-31", "val": -35251000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2021-01-01"}, {"end": "2022-12-31", "val": -58763000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2022-01-01"}, {"end": "2022-12-31", "val": -58763000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2022-01-01"}, {"end": "2023-12-31", "val": -76408000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2023-01-01"}, {"end": "2023-12-31", "val": -76408000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2023-01-01"}, {"end": "2024-12-31", "val": -86919000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2024-01-01"}, {"end": "2024-12-31", "val": -86919000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2024-01-01"}, {"end": "2025-12-31", "val": -106191000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2025-01-01"}], "IncomeTaxExpenseBenefit": [{"end": "2020-12-31", "val": 0, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2020-01-01"}, {"end": "2021-12-31", "val": 0, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2021-01-01"}, {"end": "2021-12-31", "val": 0, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2021-01-01"}, {"end": "2022-12-31", "val": 0, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2022-01-01"}, {"end": "2022-12-31", "val": 0, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2022-01-01"}, {"end": "2023-12-31", "val": 137000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2023-01-01"}, {"end": "2023-12-31", "val": 137000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2023-01-01"}, {"end": "2024-12-31", "val": 112000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2024-01-01"}, {"end": "2024-12-31", "val": 112000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 108000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2025-01-01"}], "Depreciation": [{"end": "2020-12-31", "val": 831000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2020-01-01"}, {"end": "2021-12-31", "val": 831000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2021-01-01"}, {"end": "2021-12-31", "val": 831000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2021-01-01"}, {"end": "2022-12-31", "val": 1177000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2022-01-01"}, {"end": "2022-12-31", "val": 1177000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2022-01-01"}, {"end": "2023-12-31", "val": 1295000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2023-01-01"}, {"end": "2023-12-31", "val": 1295000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2023-01-01"}, {"end": "2024-12-31", "val": 1223000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2024-01-01"}, {"end": "2024-12-31", "val": 1223000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 1129000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2025-01-01"}], "NetCashProvidedByUsedInOperatingActivities": [{"end": "2020-12-31", "val": -24321000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2020-01-01"}, {"end": "2021-12-31", "val": -32410000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2021-01-01"}, {"end": "2021-12-31", "val": -32410000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2021-01-01"}, {"end": "2022-12-31", "val": -54601000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2022-01-01"}, {"end": "2022-12-31", "val": -54601000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2022-01-01"}, {"end": "2023-12-31", "val": -63847000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2023-01-01"}, {"end": "2023-12-31", "val": -63847000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2023-01-01"}, {"end": "2024-12-31", "val": -79805000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2024-01-01"}, {"end": "2024-12-31", "val": -79805000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2024-01-01"}, {"end": "2025-12-31", "val": -84742000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2025-01-01"}], "PaymentsToAcquirePropertyPlantAndEquipment": [{"end": "2020-12-31", "val": 771000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2020-01-01"}, {"end": "2021-12-31", "val": 2125000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23", "start": "2021-01-01"}, {"end": "2021-12-31", "val": 2125000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2021-01-01"}, {"end": "2022-12-31", "val": 1094000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2022-01-01"}, {"end": "2022-12-31", "val": 1094000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2022-01-01"}, {"end": "2023-12-31", "val": 709000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2023-01-01"}, {"end": "2023-12-31", "val": 709000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2023-01-01"}, {"end": "2024-12-31", "val": 1253000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2024-01-01"}, {"end": "2024-12-31", "val": 1253000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 447000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2025-01-01"}], "StockholdersEquity": [{"end": "2019-12-31", "val": -87406000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23"}, {"end": "2020-12-31", "val": -108713000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23"}, {"end": "2020-12-31", "val": -108713000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15"}, {"end": "2021-12-31", "val": 152315000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23"}, {"end": "2021-12-31", "val": 152315000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15"}, {"end": "2021-12-31", "val": 152315000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27"}, {"end": "2022-12-31", "val": 195583000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15"}, {"end": "2022-12-31", "val": 195583000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27"}, {"end": "2022-12-31", "val": 195583000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24"}, {"end": "2023-12-31", "val": 225848000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27"}, {"end": "2023-12-31", "val": 225848000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24"}, {"end": "2023-12-31", "val": 225848000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30"}, {"end": "2024-12-31", "val": 151970000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24"}, {"end": "2024-12-31", "val": 151970000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30"}, {"end": "2025-12-31", "val": 136913000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30"}], "CashAndCashEquivalentsAtCarryingValue": [{"end": "2020-12-31", "val": 17393000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23"}, {"end": "2021-12-31", "val": 149063000, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23"}, {"end": "2021-12-31", "val": 149063000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15"}, {"end": "2022-12-31", "val": 121582000, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15"}, {"end": "2022-12-31", "val": 121582000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27"}, {"end": "2023-12-31", "val": 41063000, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27"}, {"end": "2023-12-31", "val": 41063000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24"}, {"end": "2024-12-31", "val": 31693000, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24"}, {"end": "2024-12-31", "val": 31693000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30"}, {"end": "2025-12-31", "val": 59515000, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30"}], "WeightedAverageNumberOfDilutedSharesOutstanding": [{"end": "2021-12-31", "val": 5159973, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2021-01-01"}, {"end": "2022-12-31", "val": 29937228, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2022-01-01"}, {"end": "2022-12-31", "val": 29937228, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2022-01-01"}, {"end": "2023-12-31", "val": 39620036, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2023-01-01"}, {"end": "2023-12-31", "val": 39620036, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2023-01-01"}, {"end": "2024-12-31", "val": 49650480, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2024-01-01"}, {"end": "2024-12-31", "val": 49650480, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 60337608, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2025-01-01"}], "WeightedAverageNumberOfSharesOutstandingBasic": [{"end": "2021-12-31", "val": 5159973, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2021-01-01"}, {"end": "2022-12-31", "val": 29937228, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15", "start": "2022-01-01"}, {"end": "2022-12-31", "val": 29937228, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2022-01-01"}, {"end": "2023-12-31", "val": 39620036, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27", "start": "2023-01-01"}, {"end": "2023-12-31", "val": 39620036, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2023-01-01"}, {"end": "2024-12-31", "val": 49650480, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24", "start": "2024-01-01"}, {"end": "2024-12-31", "val": 49650480, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2024-01-01"}, {"end": "2025-12-31", "val": 60337608, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30", "start": "2025-01-01"}], "CommonStockSharesOutstanding": [{"end": "2020-12-31", "val": 381123, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23"}, {"end": "2021-12-31", "val": 29211643, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23"}, {"end": "2021-12-31", "val": 29211643, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15"}, {"end": "2022-12-31", "val": 37771918, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15"}, {"end": "2022-12-31", "val": 37771918, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27"}, {"end": "2023-12-31", "val": 49350788, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27"}, {"end": "2023-12-31", "val": 49350788, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24"}, {"end": "2024-12-31", "val": 49998279, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24"}, {"end": "2024-12-31", "val": 49998279, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30"}, {"end": "2025-12-31", "val": 63587777, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30"}], "EntityCommonStockSharesOutstanding": [{"end": "2022-03-21", "val": 29217236, "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-23"}, {"end": "2023-03-10", "val": 37800102, "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-15"}, {"end": "2024-03-20", "val": 49504405, "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-03-27"}, {"end": "2024-03-20", "val": 49504405, "fy": 2023, "fp": "FY", "form": "10-K/A", "filed": "2024-06-14"}, {"end": "2025-03-19", "val": 50225312, "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-24"}, {"end": "2026-03-24", "val": 64150468, "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-30"}]}}