Merck & Co., Inc.
Close on Oct 30, 2026Market cap $368.89BP/E 119.6Yield 2.19%
Merck Pneumovax 23 by Year
Pneumovax 23 (23-valent pneumococcal polysaccharide vaccine) — Worldwide reported growth YoY (%) (%)
Merck Pneumovax 23: -37.0% in FY2025, down 1.0 pts from a year earlier. That is the lowest of the 8 years on record here.
Where the FY2025 figure comes from
“|| Pneumovax 23 | 166 | 263 | -37 | 21 | 56 | -63 | 146 | 207 | -30”
Source: Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗
Reported in Form 8-K Table 3 / 3a / 3b Product Sales.
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | Pneumovax 23 (23-valent pneumococcal polysaccharide vaccine) — Worldwide reported growth YoY (%) (%) | Year on year | Source |
|---|---|---|---|---|
| FY2025 | Dec 31, 2025 | -37.0% | -1.0 pts | Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗ |
| FY2024 | Dec 31, 2024 | -36.0% | -4.0 pts | Form 8-K (tm255059d1_ex99-1.htm, filed 2025-02-04) ↗ |
| FY2023 | Dec 31, 2023 | -32.0% | – | Form 8-K (tm244517d1_ex99-1.htm, filed 2024-02-01) ↗ |
| FY2021 | Dec 31, 2021 | -18.0% | -36.0 pts | Form 8-K (tm222755d1_ex99-1.htm, filed 2022-02-03) ↗ |
| FY2020 | Dec 31, 2020 | 18.0% | +16.0 pts | Form 8-K (tm213179d2_ex99-1.htm, filed 2021-02-04) ↗ |
| FY2019 | Dec 31, 2019 | 2.0% | -8.0 pts | Form 8-K (tm206551d1_ex99-1.htm, filed 2020-02-05) ↗ |
| FY2018 | Dec 31, 2018 | 10.0% | -18.0 pts | Form 8-K (a19-3795_1ex99d1.htm, filed 2019-02-01) ↗ |
| FY2017 | Dec 31, 2017 | 28.0% | – | Form 8-K (a18-5152_1ex99d1.htm, filed 2018-02-02) ↗ |
Cite this data
StockData. (2026). Merck Pneumovax 23 (%), annual FY2017–FY2025 [Data set]. Compiled from Merck SEC filings and investor materials. https://stockdatahq.com/stocks/mrk/kpis/rev-pneumovax23-ww-nom-yoy
See every metric in the Merck KPI table. Data updated Oct 26, 2026.