Direct Answer
Viatris reports revenue across 4 business segments in its fiscal 2025 Form 10-K. Developed Markets is the largest, with $8.6 billion of revenue (60% of the total), followed by Greater China at $2.3 billion (16%).
How Does Viatris Make Money?
No single line supplies a majority of revenue: the largest, Developed Markets, is 60%, which spreads Viatris's exposure across several demand drivers. Between fiscal 2024 and 2025, Greater China grew fastest (+7.6%) and Japan Australia and New Zealand slowest (-11.3%), so the revenue mix tilts toward Greater China while that gap lasts.
| Segment | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| Developed Markets | $8.6 billion | $9.0 billion | 59.8% | -4.6% |
| Greater China | $2.3 billion | $2.2 billion | 16.3% | 7.6% |
| Emerging Markets | $2.2 billion | $2.3 billion | 15.5% | -1.9% |
| Japan Australia and New Zealand | $1.2 billion | $1.3 billion | 8.4% | -11.3% |
What the Segment Figures Do Not Show
The rows above add up to 100% of Viatris's reported revenue for fiscal 2025; the difference is intersegment eliminations, corporate revenue or items the company reports outside its segments. Segment definitions are management's choice and change when a company reorganizes, in which case it restates prior years in the next filing, so a multi-year comparison should use the figures from a single filing. Revenue shows where sales come from, not where profit or cash is earned: a small segment can carry most of the margin.
Where These Numbers Come From
Every figure on this page is a value Viatris reported in the segment note and revenue disclosures of its Form 10-K filed February 26, 2026 (accession 0001792044-26-000013), read from the SEC's Financial Statement Data Sets. The prior-year column is the comparative figure from that same filing, so it reflects any restatement for a change in segments. Category names are the company's own XBRL labels, lightly reformatted for reading.
Rows that only total other rows (for example a "Products" line beside the individual products) are left out so nothing is counted twice. This page is educational and describes reported history for fiscal 2025; it is not a forecast or a recommendation.
Frequently Asked Questions
What are Viatris's business segments?
In its fiscal 2025 Form 10-K, Viatris reports revenue for Developed Markets, Greater China, Emerging Markets and Japan Australia and New Zealand.
Which part of Viatris brings in the most revenue?
Developed Markets, with $8.6 billion of revenue in fiscal 2025, or 60% of the total.
Where does Viatris report its segment results?
In the segment note to the financial statements in its Form 10-K, most recently filed February 26, 2026, alongside management's discussion of each segment's results.