Biogen Inc.: 10-K Risk Factor Changes

2026 vs 2025  ·  SEC EDGAR  ·  2026-05-22
Other years: 2025 vs 2024 · 2024 vs 2023
⚠ AI-Generated

The summary below was generated by an AI language model and may contain errors or omissions. All other content on this page is deterministically extracted from the original SEC EDGAR filing.

Biogen's risk factor structure remained largely stable, with no new risks added and no existing risks removed between the 2025 and 2026 10-K filings. Five risk factors were substantively modified, most notably disclosures related to tax rate fluctuations and potential excess tax obligations, as well as heightened language around reimbursement pressures from government and private insurers. The company maintained 25 unchanged risk factors, indicating continuity in its core risk profile while refining specific disclosure areas.

✓ Deterministic extraction — no AI-generated data

Classification is based on semantic text similarity scoring and may include approximations. “No match” means no high-confidence textual match was found — not necessarily that a section was removed.

0
New Risks
0
Removed
5
Modified
25
Unchanged
🟡 Modified

Our effective tax rate fluctuates, and we may incur obligations in tax jurisdictions in excess of accrued amounts in our financial statements.

high match confidence

Sentence-level differences:

  • Reworded sentence: "As a global company, we are subject to taxation in numerous countries, states and other jurisdictions."
  • Reworded sentence: "(including the OBBBA) and Switzerland, and regulations either prospectively or retrospectively and the effects of the integrations of Reata and HI-Bio."
  • Reworded sentence: "Many countries have or are in the process of enacting legislation intended to implement the OECD GloBE Model Rules."

Current (2026):

As a global company, we are subject to taxation in numerous countries, states and other jurisdictions. As a result, our effective tax rate is derived from a combination of applicable tax rates, including withholding taxes, in the various places that we operate. In preparing our…

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As a global company, we are subject to taxation in numerous countries, states and other jurisdictions. As a result, our effective tax rate is derived from a combination of applicable tax rates, including withholding taxes, in the various places that we operate. In preparing our financial statements, we estimate the amount of tax that will become payable in each of such places. Our effective tax rate may be different than experienced in the past or our current expectations due to many factors, including changes in the mix of our profitability from country to country, the results of examinations and audits of our tax filings, adjustments to the value of our uncertain tax positions, interpretations by tax authorities or other bodies with jurisdiction, the result of tax cases, changes in accounting for income taxes and changes in tax laws, especially in the U.S. (including the OBBBA) and Switzerland, and regulations either prospectively or retrospectively and the effects of the integrations of Reata and HI-Bio. Our estimates concerning the impact of the OBBBA remain subject to developing interpretations of the provisions of the OBBBA, which may require further adjustments and changes in our estimates, and could have a material adverse effect on our business. Our inability to secure or sustain acceptable arrangements with tax authorities and future changes in the tax laws, among other things, may result in tax obligations in excess of amounts accrued in our financial statements. The enactment of some or all of the recommendations set forth or that may be forthcoming in the OECD’s project on “Base Erosion and Profit Shifting” by tax authorities and economic blocs in the countries in which we operate, could unfavorably impact our effective tax rate. Many countries have or are in the process of enacting legislation intended to implement the OECD GloBE Model Rules. The impact on the Company will depend on the timing of implementation, the exact nature of each country's GloBE legislation, guidance and regulations (including the Pillar Two side-by-side package announced by the OECD in January 2026) thereon and their application by tax authorities either prospectively or retrospectively.

View prior text (2025)

As a global biopharmaceutical company, we are subject to taxation in numerous countries, states and other jurisdictions. As a result, our effective tax rate is derived from a combination of applicable tax rates, including withholding taxes, in the various places that we operate. In preparing our financial statements, we estimate the amount of tax that will become payable in each of such places. Our effective tax rate may be different than experienced in the past or our current expectations due to many factors, including changes in the mix of our profitability from country to country, the results of examinations and audits of our tax filings, adjustments to the value of our uncertain tax positions, interpretations by tax authorities or other bodies with jurisdiction, the result of tax cases, changes in accounting for income taxes and changes in tax laws, especially in the U.S. and Switzerland, and regulations (including the Global Tax Deal Executive Order issued on January 20, 2025) either prospectively or retrospectively and the effects of the integrations of Reata and HI-Bio. Our inability to secure or sustain acceptable arrangements with tax authorities and future changes in the tax laws, among other things, may result in tax obligations in excess of amounts accrued in our financial statements. The enactment of some or all of the recommendations set forth or that may be forthcoming in the OECD’s project on “Base Erosion and Profit Shifting” by tax authorities and economic blocs in the countries in which we operate, could unfavorably impact our effective tax rate. These initiatives focus on common international principles for the entitlement to taxation of global corporate profits and minimum global tax rates. Many countries have or are in the process of enacting legislation intended to implement the OECD GloBE Model Rules effective on January 1, 2024. The impact on the Company will depend on the timing of implementation, the exact nature of each country's GloBE legislation, guidance and regulations (including the Global Tax Deal Executive Order issued on January 20, 2025) thereon and their application by tax authorities either prospectively or retrospectively.

🟡 Modified Sales of our products depend, to a significant extent, on the availability and extent of adequate coverage, pricing and reimbursement from government health administration authorities, private health insurers and other organizations, which are subject to increasing and intense pressure from political, social, competitive and other sources. Our inability to obtain and maintain adequate coverage, or a reduction in pricing or reimbursement, could have an adverse effect on our business, reputation, revenue and results of operations. 🔒
🟡 Modified If we fail to comply with the extensive legal and regulatory requirements affecting the healthcare industry, we could face increased costs, penalties and a loss of business. 🔒
🟡 Modified We built a large-scale biologics manufacturing facility and are building a clinical packaging and other manufacturing facility, which represent a significant investment with no assurance that such investment will be recouped. 🔒
🟡 Modified Our results of operations may be adversely affected by current and potential future healthcare reforms including those contained in the PPACA, IRA, OBBBA, MFN and executive orders. 🔒
4 more changes in this filing

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