SEGMENT INFORMATION
We have one operating segment which primarily focuses on the discovery, development and commercialization of innovative medicines in areas of unmet medical need. See Note 2. Revenues for disaggregation of our revenues by major products and by geography. Our Chief Executive Officer, as the chief operating decision-maker (“CODM”), uses Net income attributable to Gilead as the primary measure to evaluate performance, allocate resources to the operations of our company on an entity-wide basis and forecast future financial results. Managing and allocating resources on an entity-wide basis enables our CODM to assess the overall level of resources available and how to best deploy these resources across functions and R&D projects based on unmet medical need, scientific data, probability of technical and regulatory successful development, market potential and other considerations, and, as necessary, reallocate resources among our internal R&D portfolio and external opportunities to best support the long-term growth of our business. Our CODM is regularly provided with entity-wide expense categories similar to those found on our Consolidated Statements of Operations, as well as the following:
Year Ended December 31,
(in millions)202520242023
Selling and marketing expenses$3,522 $3,453 $3,272 
General and administrative expenses2,252 2,638 2,818 
Selling, general and administrative expenses$5,774 $6,091 $6,090 
Asset information is not regularly provided to the CODM for assessing performance and allocating resources other than consolidated cash, cash equivalents and marketable debt securities, which can be found on our Consolidated Balance Sheets.

Historical Timeline

Fiscal YearFiled
2025Feb 24, 2026Showing above
2024Feb 28, 2025
2019Feb 25, 2020
2018Feb 26, 2019
2017Feb 27, 2018
2016Feb 27, 2017
2015Feb 24, 2016

About Segments Disclosures

Segment disclosures break a company into its reportable operating units, revealing revenue, profit, and asset allocation that consolidated financial statements obscure. Under ASC 280, segments must match how the chief operating decision maker views the business, providing a window into internal management structure and resource allocation priorities.

Key signals: compare segment margins to identify which units drive profitability and which destroy value. Watch for changes in the number of reportable segments — segment aggregation or disaggregation often coincides with strategic shifts or attempts to obscure declining performance. Intersegment elimination patterns reveal internal pricing practices. The reconciliation between segment totals and consolidated figures exposes corporate overhead allocation and unallocated items. Geographic revenue concentration highlights regulatory and currency exposure. Compare segment-level capital expenditure against segment revenue to assess where management is investing for future growth versus harvesting existing assets.