Stock Analysis on Net

Gilead Sciences Inc. (NASDAQ:GILD)

$24.99

Common-Size Income Statement

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Gilead Sciences Inc., common-size consolidated income statement

Microsoft Excel
12 months ended: Dec 31, 2025 Dec 31, 2024 Dec 31, 2023 Dec 31, 2022 Dec 31, 2021
Product sales
Cost of goods sold
Gross profit on product sales
Royalty, contract and other revenues
Research and development expenses
Acquired in-process research and development expenses
In-process research and development impairment
Selling, general and administrative expenses
Operating income
Interest expense
Gain (loss) from equity securities, net
Interest income
Other, net
Other income (expense), net
Income before income taxes
Income tax expense
Net income
Net loss attributable to noncontrolling interest
Net income attributable to Gilead

Based on: 10-K (reporting date: 2025-12-31), 10-K (reporting date: 2024-12-31), 10-K (reporting date: 2023-12-31), 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31).


The common-size income statement reveals significant fluctuations in profitability and expense management over the five-year period. Product sales are consistently represented as 100% of revenue, allowing for a clear view of expense and profit margins as percentages of sales. A notable trend is the volatility in operating income and net income attributable to Gilead, indicating a period of instability followed by substantial recovery.

Gross Profit
Gross profit on product sales demonstrates a fluctuating pattern, beginning at 75.56% in 2021, increasing to 79.03% in 2022, then decreasing to 75.87% in 2023. It recovers to 78.15% in 2024 before reaching 78.44% in 2025. This suggests some variability in production costs or pricing strategies.
Research and Development
Research and development expenses consistently represent a substantial portion of product sales, ranging from 18.45% to 21.23%. However, acquired in-process research and development expenses and related impairment charges show significant volatility. These expenses increased substantially from 0.66% in 2021 to 4.29% in 2023, peaking at 16.30% in 2024 before decreasing to 3.54% in 2025. The presence of in-process research and development impairment further complicates the picture, with notable impacts in 2022, 2023, and 2024.
Operating Income
Operating income as a percentage of product sales experienced a substantial decline from 36.72% in 2021 to 27.17% in 2022, and 28.24% in 2023. A dramatic drop occurred in 2024, falling to 5.81%, before a strong recovery to 34.66% in 2025. This suggests significant challenges in maintaining profitability during 2024, followed by a successful turnaround.
Net Income
Net income mirrors the trend in operating income, declining from 22.96% in 2021 to 16.92% in 2022, increasing to 20.84% in 2023, plummeting to 1.68% in 2024, and then rebounding sharply to 29.43% in 2025. This indicates that changes in operating performance are directly impacting the bottom line.
Other Income and Expenses
Other income (expense), net, fluctuated considerably, moving from a negative 2.37% in 2021 to a positive 2.76% in 2025. Gains (losses) from equity securities also contributed to volatility, particularly the negative impact of -2.43% in 2022. Interest expense remained relatively stable, consistently around 3.5% of product sales.
Tax Rate
The effective tax rate, calculated as income tax expense divided by income before income taxes, varied significantly. It was 25.28% in 2021, 21.58% in 2022, 21.68% in 2023, 31.87% in 2024, and 13.03% in 2025. These fluctuations likely reflect changes in taxable income and applicable tax laws.

Overall, the period examined demonstrates a company navigating a dynamic environment. The significant decline in operating and net income in 2024, followed by a strong recovery in 2025, warrants further investigation to understand the underlying drivers of these changes. The substantial fluctuations in acquired in-process research and development expenses and related impairments also require attention.