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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 Koselugo (selumetinib by Year

Koselugo (selumetinib — AstraZeneca NF1 alliance revenue) — Worldwide ($M) ($M)

Merck Koselugo (selumetinib: $436M in FY2025, up 156.5% from a year earlier. That is the highest of the 8 years on record here.

Latest, FY2025
436
Period ended Dec 31, 2025
Change on a year earlier
+156.5%
170 in FY2024
History
8 years
Since FY2018
Sources
5
Documents cited below

Where the FY2025 figure comes from

“Koselugo of $436 million and $170 million”

Source: Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗

Reported in Form 8-K Table 3 Footnote & Form 10-Q / 10-K Collaborative Arrangements Note.

Annual history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedKoselugo (selumetinib — AstraZeneca NF1 alliance revenue) — Worldwide ($M) ($M)Year on yearSource
FY2025Dec 31, 2025436+156.5%Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗
FY2024Dec 31, 2024170+75.3%Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗
FY2023Dec 31, 202397+79.6%Form 10-K (filed 2026-02-24) ↗
FY2022Dec 31, 202254+86.2%Form 10-K (filed 2025-02-25) ↗
FY2021Dec 31, 202129+262.5%Form 10-K (filed 2024-02-26) ↗
FY2020Dec 31, 20208–Form 10-K (filed 2021-02-25) ↗
FY2019Dec 31, 20190–Form 10-K (filed 2021-02-25) ↗
FY2018Dec 31, 20180–Form 10-K (filed 2021-02-25) ↗

Cite this data

StockData. (2026). Merck Koselugo (selumetinib ($M), annual FY2018–FY2025 [Data set]. Compiled from Merck SEC filings and investor materials. https://stockdatahq.com/stocks/mrk/kpis/rev-koselugo

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