XML 31 R12.htm IDEA: XBRL DOCUMENT
v3.25.1

Revenues | 3 Months Ended
--- | ---
Mar. 31, 2025
Revenue from Contract with Customer [Abstract] |
Revenues |
Note 5: | Revenue
Product Revenue Revenue by product is summarized as follows:
|  | For the Three Months Ended March 31,
|  | 2025 |  | 2024
(In millions) |  | United States |  | Rest of World |  | Total |  | United States |  | Rest of World |  | Total
Multiple Sclerosis: |  |  |  |  |  |  |  |  |  |  |  |
TECFIDERA |  | $ | 39.8 |  |  | $ | 166.3 |  |  | $ | 206.1 |  |  | $ | 43.7 |  |  | $ | 210.6 |  |  | $ | 254.3 |
VUMERITY |  | 117.1 |  |  | 21.7 |  |  | 138.8 |  |  | 105.9 |  |  | 21.6 |  |  | 127.5 |
Total Fumarate |  | 156.9 |  |  | 188.0 |  |  | 344.9 |  |  | 149.6 |  |  | 232.2 |  |  | 381.8 |
AVONEX |  | 108.6 |  |  | 58.2 |  |  | 166.8 |  |  | 111.2 |  |  | 67.3 |  |  | 178.5 |
PLEGRIDY |  | 24.1 |  |  | 35.4 |  |  | 59.5 |  |  | 28.6 |  |  | 36.5 |  |  | 65.1 |
Total Interferon |  | 132.7 |  |  | 93.6 |  |  | 226.3 |  |  | 139.8 |  |  | 103.8 |  |  | 243.6 |
TYSABRI |  | 200.8 |  |  | 180.7 |  |  | 381.5 |  |  | 213.8 |  |  | 217.5 |  |  | 431.3 |
FAMPYRA(1) |  | — |  |  | 0.3 |  |  | 0.3 |  |  | — |  |  | 19.2 |  |  | 19.2 |
Subtotal: Multiple Sclerosis |  | 490.4 |  |  | 462.6 |  |  | 953.0 |  |  | 503.2 |  |  | 572.7 |  |  | 1,075.9 |
Rare Disease: |  |  |  |  |  |  |  |  |  |  |  |
SPINRAZA |  | 154.4 |  |  | 269.5 |  |  | 423.9 |  |  | 148.5 |  |  | 192.8 |  |  | 341.3 |
SKYCLARYS(2) |  | 69.1 |  |  | 54.8 |  |  | 123.9 |  |  | 73.0 |  |  | 5.0 |  |  | 78.0 |
QALSODY(3) |  | 7.5 |  |  | 8.0 |  |  | 15.5 |  |  | 4.4 |  |  | 0.2 |  |  | 4.6 |
Subtotal: Rare Disease |  | 231.0 |  |  | 332.3 |  |  | 563.3 |  |  | 225.9 |  |  | 198.0 |  |  | 423.9 |
Biosimilars: |  |  |  |  |  |  |  |  |  |  |  |
BENEPALI |  | — |  |  | 111.3 |  |  | 111.3 |  |  | — |  |  | 118.7 |  |  | 118.7 |
IMRALDI |  | — |  |  | 47.4 |  |  | 47.4 |  |  | — |  |  | 54.8 |  |  | 54.8 |
FLIXABI |  | — |  |  | 13.1 |  |  | 13.1 |  |  | — |  |  | 17.8 |  |  | 17.8 |
BYOOVIZ |  | 4.2 |  |  | 4.7 |  |  | 8.9 |  |  | 3.7 |  |  | 1.9 |  |  | 5.6 |
TOFIDENCE |  | 0.1 |  |  | — |  |  | 0.1 |  |  | — |  |  | — |  |  | — |
Subtotal: Biosimilars |  | 4.3 |  |  | 176.5 |  |  | 180.8 |  |  | 3.7 |  |  | 193.2 |  |  | 196.9 |
Other: |  |  |  |  |  |  |  |  |  |  |  |
ZURZUVAE |  | 27.7 |  |  | — |  |  | 27.7 |  |  | 12.4 |  |  | — |  |  | 12.4 |
Other(4) |  | 0.4 |  |  | 1.3 |  |  | 1.7 |  |  | 0.9 |  |  | 1.9 |  |  | 2.8 |
Subtotal: Other |  | 28.1 |  |  | 1.3 |  |  | 29.4 |  |  | 13.3 |  |  | 1.9 |  |  | 15.2 |
Total product revenue, net |  | $ | 753.8 |  |  | $ | 972.7 |  |  | $ | 1,726.5 |  |  | $ | 746.1 |  |  | $ | 965.8 |  |  | $ | 1,711.9 |
(1) Effective January 1, 2025, our collaboration and license agreement for FAMPYRA global commercialization rights was terminated. (2) SKYCLARYS became commercially available in the E.U. during the first quarter of 2024. (3) QALSODY became commercially available in the E.U. during the second quarter of 2024. (4) Other includes FUMADERM and ADUHELM. We recognized revenue from two wholesalers accounting for 25.9% and 14.1% of gross product revenue for the three months ended March 31, 2025, compared to 25.6% and 11.7% of gross product revenue for the three months ended March 31, 2024. An analysis of the change in reserves for discounts and allowances is summarized as follows:
(In millions) |  | Discounts |  | Contractual Adjustments |  | Returns |  | Total
Balance, December 31, 2024 |  | $ | 162.7 |  |  | $ | 880.8 |  |  | $ | 48.1 |  |  | $ | 1,091.6 |
Current provisions relating to sales in current year |  | 185.7 |  |  | 689.7 |  |  | 5.6 |  |  | 881.0 |
Adjustments relating to prior years |  | 1.4 |  |  | (31.4) |  |  | 3.9 |  |  | (26.1) |
Payments/credits relating to sales in current year |  | (118.3) |  |  | (229.6) |  |  | (0.1) |  |  | (348.0) |
Payments/credits relating to sales in prior years |  | (64.9) |  |  | (359.5) |  |  | (3.7) |  |  | (428.1) |
Balance, March 31, 2025 |  | $ | 166.6 |  |  | $ | 950.0 |  |  | $ | 53.8 |  |  | $ | 1,170.4 |
The total reserves above, which are included in our condensed consolidated balance sheets, are summarized as follows:
(In millions) |  | As of March 31, 2025 |  | As of December 31, 2024
Reduction of accounts receivable |  | $ | 205.2 |  |  | $ | 154.1 |
Component of accrued expense and other |  | 965.2 |  |  | 937.5 |
Total revenue-related reserves |  | $ | 1,170.4 |  |  | $ | 1,091.6 |
Revenue from Anti-CD20 Therapeutic Programs Revenue from anti-CD20 therapeutic programs is summarized in the table below. For the purposes of this footnote, we refer to RITUXAN and RITUXAN HYCELA collectively as RITUXAN.
|  | For the Three Months Ended March 31, |  |
(In millions) |  | 2025 |  | 2024 |  |  |  |
Royalty revenue on sales of OCREVUS |  | $ | 288.8 |  |  | $ | 302.7 |  |  |  |  |
Biogen’s share of pre-tax profits in the U.S. for RITUXAN, GAZYVA and LUNSUMIO |  | 83.7 |  |  | 87.1 |  |  |  |  |
Other revenue from anti-CD20 therapeutic programs |  | 5.7 |  |  | 4.2 |  |  |  |  |
Total revenue from anti-CD20 therapeutic programs |  | $ | 378.2 |  |  | $ | 394.0 |  |  |  |  |
For additional information on our collaboration arrangements with Genentech, please read Note 19, Collaborative and Other Relationships, to these condensed consolidated financial statements. Alzheimer's Collaboration Revenue Alzheimer's collaboration revenue consists of our 50.0% share of LEQEMBI product revenue, net and cost of sales, including royalties, as we are not the principal. We began recognizing Alzheimer's collaboration revenue upon the accelerated approval of LEQEMBI in the U.S. during the first quarter of 2023. For the three months ended March 31, 2025 and 2024, we recognized approximately $33.0 million and $2.8 million, respectively, of Alzheimer's collaboration revenue within our condensed consolidated statements of income. For additional information on our collaboration arrangements with Eisai, please read Note 19, Collaborative and Other Relationships, to these condensed consolidated financial statements. Contract Manufacturing, Royalty and Other Revenue Contract manufacturing, royalty and other revenue is summarized as follows:
|  | For the Three Months Ended March 31, |  |
(In millions) |  | 2025 |  | 2024 |  |  |  |
Contract manufacturing revenue |  | $ | 282.3 |  |  | $ | 152.2 |  |  |  |  |
Royalty and other revenue |  | 11.0 |  |  | 29.6 |  |  |  |  |
Total contract manufacturing, royalty and other revenue |  | $ | 293.3 |  |  | $ | 181.8 |  |  |  |  |
Contract Manufacturing Revenue Contract manufacturing revenue primarily reflects amounts earned under contract manufacturing agreements with our strategic customers and batches of LEQEMBI related to our collaboration with Eisai. Royalty and Other Revenue Royalty and other revenue primarily reflects royalty revenue on biosimilar products from our license arrangements with Samsung Bioepis and royalties we receive from net sales on products related to patents that we have out-licensed. For additional information on our license arrangements with Samsung Bioepis and our collaboration arrangements with Eisai, please read Note 19, Collaborative and Other Relationships, to these condensed consolidated financial statements.

X
- References No definition available. + Details
Name: | us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-15 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Topic 606 -Publisher FASB -URI https://asc.fasb.org/606/tableOfContent + Details
Name: | us-gaap_RevenueFromContractWithCustomerTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration