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Segment Information | 6 Months Ended
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Jun. 30, 2025
Segment Reporting [Abstract] |
Segment Information |
Note 22: | Segment Information
We operate and are managed as one operating segment, and derive revenue from activities related to the discovery, development and delivery of innovative therapies for people living with serious and complex diseases. Our research and development organization is responsible for the research and discovery of new product candidates and supports development and registration efforts for potential future products. Our pharmaceutical, operations and technology organization manages the development of the manufacturing processes, clinical trial supply, commercial product supply, distribution, buildings and facilities. Our commercial organization is responsible for U.S. and international development of our commercial products. We are also supported by corporate staff functions. Our CEO, as the CODM, manages and allocates resources to the operations of our company on a total company basis by assessing the overall level of resources available and deciding how to best deploy these resources across functions, therapeutic areas and research and development projects that are in line with our long-term company-wide strategic goals. In making these decisions, our CEO is provided with and uses consolidated financial information for purposes of evaluating performance, forecasting future period financial results, allocating resources and setting incentive targets. The CODM performs this assessment based on the segment’s net income. Through this analysis, which includes a comparison to budgeted results, the CODM assesses performance and how to allocate resources across the functions discussed above. The measure of segment assets used in determining how to manage and allocate resources is reported within our condensed consolidated balance sheets as total assets. The table presented below, which was prepared in accordance with the accounting policies discussed in Note 1, Summary of Significant Accounting Policies, to our consolidated financial statements included in our 2024 Form 10-K, contains additional information on enterprise-wide disclosures about product revenue, other revenue and long-lived assets, as well as our segment’s revenue and profits, including significant segment expense and other segment items. Revenue is primarily attributed to individual countries based on location of the customer or licensee. Additional Segment Information The following table includes additional information about reported segment revenue, significant segment expense and segment measure of profitability:
|  | For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
(In millions) |  | 2025 |  | 2024 |  | 2025 |  | 2024
Total revenue |  | $ | 2,645.5 |  |  | $ | 2,464.9 |  |  | $ | 5,076.5 |  |  | $ | 4,755.4 |
Less cost and expense: |  |  |  |  |  |  |  |
Cost of sales, excluding amortization and impairment of acquired intangible assets: |  |  |  |  |  |  |  |
Product cost of sales |  | 415.0 |  |  | 358.4 |  |  | 877.2 |  |  | 736.1 |
Royalty cost of sales |  | 190.0 |  |  | 187.6 |  |  | 357.1 |  |  | 352.1 |
Research and development: |  |  |  |  |  |  |  |
Research and discovery |  | 46.6 |  |  | 45.7 |  |  | 90.9 |  |  | 93.3 |
Early stage programs |  | 51.9 |  |  | 66.6 |  |  | 124.3 |  |  | 150.7 |
Late stage programs |  | 44.6 |  |  | 46.7 |  |  | 94.0 |  |  | 79.3 |
Marketed products |  | 87.7 |  |  | 170.0 |  |  | 177.2 |  |  | 288.1 |
Other research and development costs(1) |  | 168.2 |  |  | 176.4 |  |  | 346.7 |  |  | 339.4 |
Acquired in-process research and development, upfront and milestone expense |  | 46.6 |  |  | 8.5 |  |  | 247.3 |  |  | 16.0 |
Selling, general and administrative |  | 583.8 |  |  | 553.8 |  |  | 1,156.3 |  |  | 1,135.3 |
Other segment expense(2) |  | 376.3 |  |  | 267.6 |  |  | 730.2 |  |  | 588.1 |
Net Income attributable to Biogen Inc. |  | $ | 634.8 |  |  | $ | 583.6 |  |  | $ | 875.3 |  |  | $ | 977.0 |
(1) Other research and development costs primarily consist of indirect costs incurred in support of overall research and development activities and non-specific programs, including activities that benefit multiple programs, such as management costs, as well as depreciation, information technology and facility-based expenses and are not allocated to a specific program or stage. (2) Other segment expense includes: amortization and impairment of acquired intangible assets; collaboration profit sharing/(loss reimbursement); (gain) loss on fair value remeasurement of contingent consideration; restructuring charges; gain on sale of priority review voucher, net; other (income) expense, net; and income tax (benefit) expense

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- Definition The entire disclosure for reporting segments including data and tables. 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