Quick Answer
Merck & Co., Inc. reported Long-Term Debt of $46.75 billion for fiscal year 2025.
Merck & Co., Inc. Long-Term Debt — Annual History
| Fiscal Year | Long-Term Debt | YoY Change |
|---|---|---|
| 2025 | $46.75B | +35.7% |
| 2024 | $34.46B | +2.3% |
| 2023 | $33.68B | +17.2% |
| 2022 | $28.75B | -6.3% |
| 2021 | $30.69B | +21.0% |
| 2020 | $25.36B | +11.5% |
| 2019 | $22.74B | +14.8% |
| 2018 | $19.81B | -7.2% |
| 2017 | $21.35B | -12.0% |
| 2016 | $24.27B | +1.9% |
| 2015 | $23.83B | +27.4% |
| 2014 | $18.70B | -9.0% |
| 2013 | $20.54B | +26.4% |
| 2012 | $16.25B | +4.7% |
| 2011 | $15.53B | +0.3% |
| 2010 | $15.48B | -3.8% |
| 2009 | $16.09B | +308.2% |
| 2008 | $3.94B | — |
Quarterly Long-Term Debt
| Quarter Ending | Long-Term Debt | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | $39.97B | +14.3% | +17.7% |
| June 30, 2025 | $33.97B | -2.2% | +1.4% |
| March 31, 2025 | $33.48B | +7.5% | -2.8% |
| December 31, 2024 | $34.46B | +2.3% | -1.5% |
| September 30, 2024 | $34.98B | +3.0% | +0.8% |
| June 30, 2024 | $34.72B | +1.9% | +11.5% |
| March 31, 2024 | $31.14B | +10.9% | -7.5% |
| December 31, 2023 | $33.68B | +17.2% | -0.9% |
- Merck & Co., Inc. showed an increase of +35.7% in Long-Term Debt compared to the prior fiscal year.
- Over the 2008–2025 period, Merck & Co., Inc.’s long-term debt has grown by 1085.6% (from $3.94 billion to $46.75 billion).
- The most recent figure is from Merck & Co., Inc.’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 24, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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