Merck & Co., Inc.
MRKNYSEPharmaceutical PreparationsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 7, 2026Score 9/30250% above fair value
$149.52+3.19 (+2.18%)
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 constant-currency (ex-exchange) growth YoY (%) (%)
Merck Pneumovax 23: -37.0% in FY2025, down 3.0 pts from a year earlier.
Latest, FY2025
-37.0%
Period ended Dec 31, 2025
Change on a year earlier
-3.0 pts
-34.0% in FY2024
History
7 years
Since FY2017
Sources
7
Documents cited below
Where the FY2025 figure comes from
“|| Pneumovax 23 | 41 | 38 | 45 | 42 | 166 | 61 | 59 | 68 | 74 | 263 | -43 | -44 | -37 | -37”
Source: Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗
Reported in Form 8-K Table 3 / 10-K / 10-Q MD&A.
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 constant-currency (ex-exchange) growth YoY (%) (%) | Year on year | Source |
|---|---|---|---|---|
| FY2025 | Dec 31, 2025 | -37.0% | -3.0 pts | Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗ |
| FY2024 | Dec 31, 2024 | -34.0% | -3.0 pts | Form 8-K (tm255059d1_ex99-1.htm, filed 2025-02-04) ↗ |
| FY2023 | Dec 31, 2023 | -31.0% | – | Form 8-K (tm244517d1_ex99-1.htm, filed 2024-02-01) ↗ |
| FY2021 | Dec 31, 2021 | -19.0% | – | Form 8-K (tm222755d1_ex99-1.htm, filed 2022-02-03) ↗ |
| FY2019 | Dec 31, 2019 | 3.0% | -7.0 pts | Form 8-K (tm206551d1_ex99-1.htm, filed 2020-02-05) ↗ |
| FY2018 | Dec 31, 2018 | 10.0% | -19.0 pts | Form 8-K (a19-3795_1ex99d1.htm, filed 2019-02-01) ↗ |
| FY2017 | Dec 31, 2017 | 29.0% | – | 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-exfx-yoy
See every metric in the Merck KPI table. Data updated Oct 26, 2026.