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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 9/30242% above fair value
$149.52+3.19 (+2.18%)

Close on Oct 30, 2026Market cap $368.89BP/E 119.6Yield 2.19%

Merck Prevymis (letermovir by Year

Prevymis (letermovir — CMV prophylaxis) — Worldwide reported growth YoY (%) (%)

Merck Prevymis (letermovir: 25.0% in FY2025, down 5.0 pts from a year earlier.

Latest, FY2025
25.0%
Period ended Dec 31, 2025
Change on a year earlier
-5.0 pts
30.0% in FY2024
History
5 years
Since FY2020
Sources
5
Documents cited below

Where the FY2025 figure comes from

“|| Prevymis | 978 | 785 | 25 | 475 | 371 | 28 | 503 | 414 | 21”

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

PeriodEndedPrevymis (letermovir — CMV prophylaxis) — Worldwide reported growth YoY (%) (%)Year on yearSource
FY2025Dec 31, 202525.0%-5.0 ptsForm 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗
FY2024Dec 31, 202430.0%-11.0 ptsForm 8-K (tm255059d1_ex99-1.htm, filed 2025-02-04) ↗
FY2023Dec 31, 202341.0%–Form 8-K (tm244517d1_ex99-1.htm, filed 2024-02-01) ↗
FY2021Dec 31, 202132.0%-38.0 ptsForm 8-K (tm222755d1_ex99-1.htm, filed 2022-02-03) ↗
FY2020Dec 31, 202070.0%–Form 8-K (tm213179d2_ex99-1.htm, filed 2021-02-04) ↗

Cite this data

StockData. (2026). Merck Prevymis (letermovir (%), annual FY2020–FY2025 [Data set]. Compiled from Merck SEC filings and investor materials. https://stockdatahq.com/stocks/mrk/kpis/rev-prevymis-ww-nom-yoy

See every metric in the Merck KPI table. Data updated Oct 26, 2026.