Latest period
2.47B
YoY change
-1.3%
5Y CAGR
-0.3%
Peak year (2010)
3.12B
Latest annual
2.51B
Shares Outstanding history chart for Merck & Co. (MRK) from 1985 to 2025
Latest: 2.51B
Shares Outstanding growth chart for Merck & Co. (MRK) from 1985 to 2025
Latest: -1.3%
Shares Outstanding history table for Merck & Co. (MRK) from 1985 to 2025
| 2025 | 2.51B | -1.3% | -34.00M | ||
| 2024 | 2.54B | -0.2% | -6.00M | ||
| 2023 | 2.55B | +0.2% | +5.00M | ||
| 2022 | 2.54B | +0.2% | +4.00M | ||
| 2021 | 2.54B | -0.1% | -3.00M | ||
| 2020 | 2.54B | -1.5% | -39.00M | ||
| 2019 | 2.58B | -3.7% | -99.00M | ||
| 2018 | 2.68B | -2.5% | -69.00M | ||
| 2017 | 2.75B | -1.4% | -39.00M | ||
| 2016 | 2.79B | -1.9% | -54.00M | ||
| 2015 | 2.84B | -3.0% | -87.00M | ||
| 2014 | 2.93B | -2.3% | -68.00M | ||
| 2013 | 3.00B | -2.6% | -80.00M | ||
| 2012 | 3.08B | -0.6% | -18.00M | ||
| 2011 | 3.09B | -0.8% | -26.00M | ||
| 2010 | 3.12B | +37.3% | +846.80M | ||
| 2009 | 2.27B | +6.1% | +130.20M | ||
| 2008 | 2.14B | -2.3% | -49.90M | ||
| 2007 | 2.19B | +0.2% | +5.20M | ||
| 2006 | 2.19B | -0.6% | -12.70M | ||
| 2005 | 2.20B | -1.2% | -26.00M | ||
| 2004 | 2.23B | -1.2% | -26.70M | ||
| 2003 | 2.25B | -1.0% | -23.90M | ||
| 2002 | 2.28B | -2.0% | -45.30M | ||
| 2001 | 2.32B | -1.3% | -30.90M | ||
| 2000 | 2.35B | -2.1% | -51.40M | ||
| 1999 | 2.40B | -1.5% | -36.42M | ||
| 1998 | 2.44B | -1.1% | -26.41M | ||
| 1997 | 2.47B | -0.8% | -20.58M | ||
| 1996 | 2.49B | -2.0% | -50.99M | ||
| 1995 | 2.54B | -0.5% | -13.40M | ||
| 1994 | 2.55B | +9.6% | +223.15M | ||
| 1993 | 2.33B | +23.3% | +439.53M | ||
| 1992 | 1.89B | -18.9% | -441.82M | ||
| 1991 | 2.33B | -0.5% | -12.15M | ||
| 1990 | 2.34B | -1.3% | -29.97M | ||
| 1989 | 2.37B | +0.3% | +7.38M | ||
| 1988 | 2.37B | -3.4% | -83.46M | ||
| 1987 | 2.45B | -2.1% | -52.86M | ||
| 1986 | 2.50B | -2.7% | -68.36M | ||
| 1985 | 2.57B | — | — |
- 20252.51B-1.3%
- 20242.54B-0.2%
- 20232.55B+0.2%
- 20222.54B+0.2%
- 20212.54B-0.1%
- 20202.54B-1.5%
- 20192.58B-3.7%
- 20182.68B-2.5%
- 20172.75B-1.4%
- 20162.79B-1.9%
- 20152.84B-3.0%
- 20142.93B-2.3%
- 20133.00B-2.6%
- 20123.08B-0.6%
- 20113.09B-0.8%
- 20103.12B+37.3%
- 20092.27B+6.1%
- 20082.14B-2.3%
- 20072.19B+0.2%
- 20062.19B-0.6%
- 20052.20B-1.2%
- 20042.23B-1.2%
- 20032.25B-1.0%
- 20022.28B-2.0%
- 20012.32B-1.3%
- 20002.35B-2.1%
- 19992.40B-1.5%
- 19982.44B-1.1%
- 19972.47B-0.8%
- 19962.49B-2.0%
- 19952.54B-0.5%
- 19942.55B+9.6%
- 19932.33B+23.3%
- 19921.89B-18.9%
- 19912.33B-0.5%
- 19902.34B-1.3%
- 19892.37B+0.3%
- 19882.37B-3.4%
- 19872.45B-2.1%
- 19862.50B-2.7%
- 19852.57B—
Shares Outstanding values are taken from Merck & Co.'s reported income statements (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Shares Outstanding at Merck & Co. (MRK)
According to Merck & Co.'s latest reported financial statements, the company's latest reported diluted shares outstanding is 2.47B. Diluted weighted-average shares outstanding is the share count used to compute per-share metrics like EPS. Buybacks lower it; new issuance, stock-based compensation, and convertible securities raise it. Multiply by the stock price for market capitalization.
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
Merck & Co. (MRK) most recent annual diluted shares outstanding stands at 2.51B (2025) – edged down 1.3% year-over-year.
Merck & Co. diluted shares outstanding compound annual growth for the 2020–2025 (5 years) window is -0.3%, with a net decline across the window.
Between 2010 and 2025, Merck & Co. diluted shares outstanding declined 19.6%, falling from 3.12B to 2.51B.
Across the available history, diluted shares outstanding reached its high of 3.12B in 2010 and its low of 1.89B in 1992.
Merck & Co. Shares Outstanding by Year
Merck & Co. Shares Outstanding 2025: 2.51B
Merck & Co. diluted shares outstanding in 2025 was 2.51B, edged down 1.3% below 2024.
Merck & Co. Shares Outstanding 2024: 2.54B
2024's diluted shares outstanding for Merck & Co. came in at 2.54B, edged down 0.2% below 2023.
Merck & Co. Shares Outstanding 2023: 2.55B
Merck & Co. posted diluted shares outstanding of 2.55B in 2023, edged up 0.2% from 2022.
Merck & Co. Shares Outstanding 2022: 2.54B
In 2022, Merck & Co. reported diluted shares outstanding of 2.54B, edged up 0.2% from 2021.
Merck & Co. Shares Outstanding 2021: 2.54B
Merck & Co. diluted shares outstanding in 2021 was 2.54B.
See more financial history for Merck & Co. (MRK).
Sector peers by Shares Outstanding
Healthcare peers of Merck & Co. (MRK), ranked by their latest diluted shares outstanding
| 4.45B | |
| 2.43B | |
| 1.77B | |
| 1.56B | |
| 910.00M | |
| 898.00M | |
| 542.00M | |
| 377.00M |
- 4.45B
- 1.77B
- 1.56B
- 910.00M
- 898.00M
- 542.00M
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