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v3.25.3

Leases - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 USD ($) ft² | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) ft² | Sep. 30, 2024 USD ($) | Aug. 01, 2025 USD ($) | Dec. 31, 2024 USD ($)
Leases |  |  |  |  |  |
Aggregate base rent | $ 159,823 |  | $ 159,823 |  |  |
Operating lease ROU assets | 80,682 |  | 80,682 |  |  | $ 56,685
Operating lease ROU liability | 107,298 |  | 107,298 |  |  |
Finance lease liabilities- current | 2,676 |  | 2,676 |  |  | 3,000
Finance lease liabilities- noncurrent | 13,833 |  | 13,833 |  |  | 15,574
Operating lease, expense | 5,500 | $ 5,900 | 15,700 | $ 19,500 |  |
MassBio |  |  |  |  |  |
Leases |  |  |  |  |  |
Finance lease liabilities- current | 2,700 |  | 2,700 |  |  | 3,000
Finance lease liabilities- noncurrent | 13,800 |  | 13,800 |  |  | $ 15,600
Finance lease cost | $ 300 | $ 400 | $ 900 | $ 1,000 |  |
Minimum |  |  |  |  |  |
Leases |  |  |  |  |  |
Operating lease, term of contract | 7 months 6 days |  | 7 months 6 days |  |  |
Maximum |  |  |  |  |  |
Leases |  |  |  |  |  |
Operating lease, term of contract | 13 years 8 months 12 days |  | 13 years 8 months 12 days |  |  |
Renewal term | 15 years |  | 15 years |  |  |
Warren Building under lease amendment |  |  |  |  |  |
Leases |  |  |  |  |  |
Area of real estate property | ft² | 180,000 |  | 180,000 |  |  |
Mountainview |  |  |  |  |  |
Leases |  |  |  |  |  |
Operating lease, term of contract |  |  |  |  | 12 years 9 months |
Aggregate base rent |  |  |  |  | $ 42,600 |
Operating lease ROU assets |  |  |  |  | 26,800 |
Operating lease ROU liability |  |  |  |  | $ 26,700 |

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