Merck & Co annual shares outstanding
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
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2024
2025
Merck & Co Shares Outstanding History (MRK)
Merck & Co reported 2.47B shares outstanding at the end of fiscal 2025.
View full Merck & Co company overviewMerck & Co annual shares outstanding history
| Fiscal year | Period ended | Shares outstanding | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | 2.47B | −53.6M | −2.12% |
| 2024 | 2024-12-31 | 2.53B | −6.6M | −0.26% |
| 2023 | 2023-12-31 | 2.53B | −5.9M | −0.23% |
| 2022 | 2022-12-31 | 2.54B | 10.9M | +0.43% |
| 2021 | 2021-12-31 | 2.53B | −2.6M | −0.10% |
| 2020 | 2020-12-31 | 2.53B | −6.0M | −0.23% |
| 2019 | 2019-12-31 | 2.54B | −45.0M | −1.74% |
| 2018 | 2018-12-31 | 2.58B | −115.0M | −4.26% |
| 2017 | 2017-12-31 | 2.70B | −49.4M | −1.80% |
| 2016 | 2016-12-31 | 2.75B | −29.7M | −1.07% |
| 2015 | 2015-12-31 | 2.78B | −62.9M | −2.22% |
| 2014 | 2014-12-31 | 2.84B | −102.4M | −3.48% |
| 2013 | 2013-12-31 | 2.94B | −81.7M | −2.70% |
| 2012 | 2012-12-31 | 3.02B | −21.6M | −0.71% |
| 2011 | 2011-12-31 | 3.04B | −39.1M | −1.27% |
| 2010 | 2010-12-31 | 3.08B | −32.2M | −1.03% |
| 2009 | 2009-12-31 | 3.12B | — | — |
Merck & Co quarterly shares outstanding
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| Fiscal quarter | Period ended | Shares outstanding | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | 2.47B | −30.6M | −1.23% |
| Q1 2026 | 2026-03-31 | 2.47B | −41.2M | −1.64% |
| Q4 2025 | 2025-12-31 | 2.47B | −53.6M | −2.12% |
| Q3 2025 | 2025-09-30 | 2.48B | −47.6M | −1.88% |
| Q2 2025 | 2025-06-30 | 2.50B | −37.0M | −1.46% |
| Q1 2025 | 2025-03-31 | 2.51B | −21.8M | −0.86% |
| Q4 2024 | 2024-12-31 | 2.53B | −6.6M | −0.26% |
| Q3 2024 | 2024-09-30 | 2.53B | −4.4M | −0.17% |
| Q2 2024 | 2024-06-30 | 2.53B | −2.7M | −0.11% |
| Q1 2024 | 2024-03-31 | 2.53B | −4.6M | −0.18% |
| Q4 2023 | 2023-12-31 | 2.53B | −5.9M | −0.23% |
| Q3 2023 | 2023-09-30 | 2.53B | −1.4M | −0.05% |
| Q2 2023 | 2023-06-30 | 2.54B | 4.2M | +0.17% |
| Q1 2023 | 2023-03-31 | 2.54B | 8.6M | +0.34% |
| Q4 2022 | 2022-12-31 | 2.54B | 10.9M | +0.43% |
| Q3 2022 | 2022-09-30 | 2.54B | 9.5M | +0.37% |
| Q2 2022 | 2022-06-30 | 2.53B | 1.9M | +0.08% |
| Q1 2022 | 2022-03-31 | 2.53B | −3.3M | −0.13% |
| Q4 2021 | 2021-12-31 | 2.53B | −2.6M | −0.10% |
| Q3 2021 | 2021-09-30 | 2.53B | −4.1M | −0.16% |
| Q2 2021 | 2021-06-30 | 2.53B | 2.1M | +0.08% |
| Q1 2021 | 2021-03-31 | 2.53B | 8.0M | +0.32% |
| Q4 2020 | 2020-12-31 | 2.53B | −6.0M | −0.23% |
| Q3 2020 | 2020-09-30 | 2.53B | −15.9M | −0.63% |
| Q2 2020 | 2020-06-30 | 2.53B | −31.1M | −1.22% |
| Q1 2020 | 2020-03-31 | 2.52B | −50.5M | −1.96% |
| Q4 2019 | 2019-12-31 | 2.54B | −45.0M | −1.74% |
| Q3 2019 | 2019-09-30 | 2.55B | −54.4M | −2.09% |
| Q2 2019 | 2019-06-30 | 2.56B | −99.2M | −3.73% |
| Q1 2019 | 2019-03-31 | 2.57B | −115.7M | −4.30% |
| Q4 2018 | 2018-12-31 | 2.58B | −115.0M | −4.26% |
| Q3 2018 | 2018-09-30 | 2.60B | −124.1M | −4.55% |
| Q2 2018 | 2018-06-30 | 2.66B | −67.8M | −2.49% |
| Q1 2018 | 2018-03-31 | 2.69B | −44.9M | −1.64% |
| Q4 2017 | 2017-12-31 | 2.70B | −49.4M | −1.80% |
| Q3 2017 | 2017-09-30 | 2.72B | −32.7M | −1.19% |
| Q2 2017 | 2017-06-30 | 2.73B | −37.9M | −1.37% |
| Q1 2017 | 2017-03-31 | 2.74B | −32.9M | −1.19% |
| Q4 2016 | 2016-12-31 | 2.75B | −29.7M | −1.07% |
| Q3 2016 | 2016-09-30 | 2.76B | −36.4M | −1.30% |
| Q2 2016 | 2016-06-30 | 2.77B | −51.4M | −1.83% |
| Q1 2016 | 2016-03-31 | 2.77B | −57.2M | −2.02% |
| Q4 2015 | 2015-12-31 | 2.78B | −62.9M | −2.22% |
| Q3 2015 | 2015-09-30 | 2.79B | −57.3M | −2.01% |
| Q2 2015 | 2015-06-30 | 2.82B | −68.0M | −2.36% |
| Q1 2015 | 2015-03-31 | 2.83B | −97.2M | −3.32% |
| Q4 2014 | 2014-12-31 | 2.84B | −102.4M | −3.48% |
| Q3 2014 | 2014-09-30 | 2.85B | −71.1M | −2.43% |
| Q2 2014 | 2014-06-30 | 2.88B | −41.7M | −1.43% |
| Q1 2014 | 2014-03-31 | 2.92B | −97.2M | −3.22% |
| Q4 2013 | 2013-12-31 | 2.94B | −81.7M | −2.70% |
| Q3 2013 | 2013-09-30 | 2.92B | −118.1M | −3.89% |
| Q2 2013 | 2013-06-30 | 2.93B | −119.3M | −3.92% |
| Q1 2013 | 2013-03-31 | 3.02B | −22.0M | −0.72% |
| Q4 2012 | 2012-12-31 | 3.02B | −21.6M | −0.71% |
| Q3 2012 | 2012-09-30 | 3.04B | −7.8M | −0.26% |
| Q2 2012 | 2012-06-30 | 3.05B | −35.2M | −1.14% |
| Q1 2012 | 2012-03-31 | 3.04B | −45.0M | −1.46% |
| Q4 2011 | 2011-12-31 | 3.04B | −39.1M | −1.27% |
| Q3 2011 | 2011-09-30 | 3.05B | −33.0M | −1.07% |
| Q2 2011 | 2011-06-30 | 3.08B | 7.2M | +0.23% |
| Q1 2011 | 2011-03-31 | 3.09B | −31.7M | −1.02% |
| Q4 2010 | 2010-12-31 | 3.08B | −32.2M | −1.03% |
| Q3 2010 | 2010-09-30 | 3.08B | 1.44B | +87.96% |
| Q2 2010 | 2010-06-30 | 3.07B | — | — |
| Q1 2010 | 2010-03-31 | 3.12B | — | — |
| Q4 2009 | 2009-12-31 | 3.12B | 0 | 0.00% |
| Q3 2009 | 2009-09-30 | 1.64B | — | — |
| Q4 2008 | 2008-12-31 | 3.12B | — | — |
Merck & Co Share Buyback History
A share buyback, also called a stock repurchase, is when a company uses cash to buy its own shares. Merck & Co share buyback history shows the reported cash used for repurchases. Buybacks can reduce shares outstanding, but issuance, stock-based compensation, acquisitions, and stock splits can change the share count separately.
Merck & Co used $5.08B to repurchase common stock in fy 2025. Across the latest 5 reported fiscal years, total share repurchases were $8.58B. The latest reported quarter showed $757.0M of share repurchases.
| Fiscal year | Period ended | Share repurchases |
|---|---|---|
| 2025 | 2025-12-31 | $5.08B |
| 2024 | 2024-12-31 | $1.31B |
| 2023 | 2023-12-31 | $1.35B |
| 2022 | 2022-12-31 | $0 |
| 2021 | 2021-12-31 | $840.0M |
| 2020 | 2020-12-31 | $1.28B |
| 2019 | 2019-12-31 | $4.78B |
| 2018 | 2018-12-31 | $9.09B |
| 2017 | 2017-12-31 | $4.01B |
| 2016 | 2016-12-31 | $3.43B |
TickerStat uses SEC-reported cash payments for common-stock repurchases. The amounts describe capital returned through buybacks; they are not a forecast or a measure of the number of shares retired.
Merck & Co shares outstanding trends
Over the last five fiscal years, Merck & Co's shares outstanding moved from 2.53B to 2.47B, a change of −57.9M. The latest reported quarter, Q2 2026, shows 2.47B.
About the metric
What shares outstanding means
Shares outstanding is the number of common shares held by investors at a reporting-period end. The count can change because of stock issuance, repurchases, conversions, acquisitions, or stock splits.
Calculation and source
SEC-reported period-end shares
TickerStat displays period-end common shares from SEC filings and adjusts older values to the current share basis when a stock-split conversion ratio is reported directly or evidenced by a later filing’s restated historical share balance. After repeated reverse splits, an old period can represent less than one current-basis share; this is a split-adjusted equivalent, not a literal historical certificate count. Values remain as reported when no reliable split ratio is available. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Merck & Co source filings ↗