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Intangible Assets and Goodwill (Tables) | 6 Months Ended
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Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible assets | Intangible assets, net of accumulated amortization, impairment charges and adjustments are summarized as follows:
|  |  |  | As of June 30, 2025 |  | As of December 31, 2024
(In millions) |  | Estimated Life |  | Cost |  | Accumulated Amortization |  | Net |  | Cost |  | Accumulated Amortization |  | Net
Completed technology |  | 2-31 years |  | $ | 14,087.1 |  |  | $ | (6,423.0) |  |  | $ | 7,664.1 |  |  | $ | 14,138.4 |  |  | $ | (6,254.1) |  |  | $ | 7,884.3 |
In-process research and development |  | Indefinite until commercialization |  | 1,639.4 |  |  | — |  |  | 1,639.4 |  |  | 1,642.9 |  |  | — |  |  | 1,642.9 |
Priority review voucher |  | Indefinite |  | 100.0 |  |  | — |  |  | 100.0 |  |  | 100.0 |  |  | — |  |  | 100.0 |
Trademarks and trade names |  | Indefinite |  | 64.0 |  |  | — |  |  | 64.0 |  |  | 64.0 |  |  | — |  |  | 64.0 |
Total intangible assets |  |  |  | $ | 15,890.5 |  |  | $ | (6,423.0) |  |  | $ | 9,467.5 |  |  | $ | 15,945.3 |  |  | $ | (6,254.1) |  |  | $ | 9,691.2 |
Estimated future amortization for acquired intangible assets | The estimated future amortization of finite-lived intangible assets for the next five years is expected to be as follows:
(In millions) |  | As of June 30, 2025
2025 (remaining six months) |  | $ | 240.0 |
2026 |  | 565.0 |
2027 |  | 600.0 |
2028 |  | 630.0 |
2029 |  | 665.0 |
2030 |  | 700.0 |
Summary of roll forward of the changes in goodwill | The following table provides a roll forward of the changes in our goodwill balance:
(In millions) |  | As of June 30, 2025
Goodwill, December 31, 2024 |  | $ | 6,478.9 |
Goodwill resulting from HI-Bio acquisition(1) |  | 4.5 |
Other(2) |  | 9.7 |
Goodwill, June 30, 2025 |  | $ | 6,493.1 |
(1) Goodwill resulting from the HI-Bio acquisition relates to HI-Bio measurement period adjustments recognized during 2025 related to certain income tax adjustments. For additional information on our acquisition of HI-Bio, please read Note 2, Acquisitions, to these condensed consolidated financial statements. (2) Other includes adjustments related to foreign currency exchange rate fluctuations.

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