Our product supply and related patient access has been, and could in the future be, negatively impacted by difficulties, delays and disruptions in the manufacturing, distribution and sale of our products. Some of the difficulties, delays and disruptions include: (i) product seizures or recalls or forced closings of manufacturing plants; (ii) our failure, or the failure of any of our vendors or suppliers, to comply with cGMP and other applicable regulations or quality assurance guidelines that could lead to manufacturing shutdowns, product shortages or delays in product manufacturing; (iii) manufacturing, quality assurance/quality control, supply problems or governmental approval delays; (iv) the failure of a supplier, including sole source or single source suppliers, to provide us with the necessary raw materials, supplies or finished goods within a reasonable timeframe and with required quality; (v) the failure of a third-party manufacturer to supply us with bulk active or finished product on time; (vi) construction or regulatory approval delays for new facilities or the expansion of existing facilities, including those intended to support future demand for our biologics products, such as Opdivo; (vii) the failure to meet new and emerging regulations requiring products to be tracked throughout the distribution channels using unique identifiers to verify their authenticity in the supply chain; (viii) other manufacturing or distribution issues, including limits to manufacturing capacity and changes in the types of products produced, such as biologics, physical limitations, labor disputes or shortages, or other business interruptions; and (ix) disruptions in supply chain continuity, including from market forces (such as the recent stress on global logistics), natural disasters, global disease outbreaks or pandemics (including COVID-19), acts of war or terrorism or other unforeseeable or unavoidable events that materially impact one or more of our facilities or a critical supplier.

We are subject to income taxes in the U.S. and various other countries globally. Changes in tax laws and regulations can and do occur. Significant judgment is required for determining the Company’s tax liabilities, and the Company’s tax returns are periodically examined by various tax authorities. We have faced, and may continue to face, audit challenges on how we apply a tax law or regulation. The ultimate resolution of any tax matters may result in payments greater or less than amounts accrued, which could have a negative impact on our provision for income taxes. In addition, our future earnings could be negatively impacted by further changes in tax legislation, including changes in tax rates and tax base such as limiting, phasing-out or eliminating deductions or tax credits, increase taxing of certain excess income from intellectual property, revising tax law interpretations in domestic or foreign jurisdictions, changes in rules for earnings repatriations and changes in other tax laws in the U.S. or other countries. Notably, in July and October 2021 OECD/G20 Inclusive Framework agreed on the general rules for redefined jurisdictional taxation rights and a global minimum tax. In December 2022, the EU member states voted unanimously to adopt a Directive implementing the Pillar Two (global minimum tax) rules giving member states until December 31, 2023 to implement the Directive into national legislation. Certain jurisdictions in which we operate, under the OECD/G20 Inclusive Framework, have enacted legislation that adopts a subset of such rules effective January 1, 2024, with the remaining rules becoming effective January 1, 2025. These rules and associated legislative changes may significantly impact our tax provision and results of operations. The implementation of Pillar Two is currently expected to increase our effective tax rate excluding specified items by approximately 1% in 2024.

Market exclusivity for our products is based upon patent rights and certain regulatory forms of exclusivity. The scope of our patent rights, if any, varies from country to country and may also be dependent on the availability of meaningful legal remedies in a country. The failure to obtain or maintain patent and other intellectual property rights, or limitations on the use or loss of such rights, could result in a rapid loss of sales for any affected products which could be material to us. In some countries, including certain EU member states, basic patent protections for our products may not exist because certain countries did not historically offer the right to obtain specific types of patents and/or we (or our licensors) did not file in those countries. In addition, the patent environment can be unpredictable and the validity and enforceability of patents cannot be predicted with certainty. For example, for Eliquis, generics have challenged the composition of matter patents and related SPCs in various jurisdictions and trials have taken place, or are scheduled to take place, in certain European countries. While these legal proceedings are pending, generic manufacturers have begun marketing generic versions of Eliquis in certain EU countries and may seek to market generic versions of Eliquis in other EU countries prior to the expiration date of applicable patents and related SPCs. Furthermore, manufacturers of innovative drugs as well as generic drug manufacturers may be able to design their products around our owned or licensed patents and compete with us using the resulting alternative technology. Absent relevant patent protection for a product, once the data exclusivity period expires, generic or alternative versions can be approved and marketed.