Weighted Average Number of Shares Outstanding, Basic of Merck & Co., Inc. from 31 Mar 2010 to 31 Dec 2025

Taxonomy & unit
us-gaap: shares
Description
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
Summary
Merck & Co., Inc. quarterly and annual Weighted Average Number of Shares Outstanding, Basic in shares history and change rate from 31 Mar 2010 to 31 Dec 2025.
  • Merck & Co., Inc. Weighted Average Number of Shares Outstanding, Basic for the quarter ending 31 Dec 2025 was 2,502,000,000, a 1.2% decline year-over-year.
  • Merck & Co., Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2025 was 2,502,000,000, a 1.2% decline from 2024.
  • Merck & Co., Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2024 was 2,532,000,000, a 0.2% decline from 2023.
  • Merck & Co., Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2023 was 2,537,000,000, a 0.2% increase from 2022.
Source SEC data
View on sec.gov
Weighted Average Number of Shares Outstanding, Basic, Quarterly (shares)
Weighted Average Number of Shares Outstanding, Basic, YoY Quarterly Change (%)
Weighted Average Number of Shares Outstanding, Basic, Annual (shares)
Weighted Average Number of Shares Outstanding, Basic, YoY Annual Change (%)

Merck & Co., Inc. Quarterly Weighted Average Number of Shares Outstanding, Basic (shares)

Period TTM Value Value YoY Chg Change % Start Date End Date Report Filed Fiscal Year Fiscal Period
Q4 2025 2,502,000,000 -30,000,000 -1.2% 01 Oct 2025 31 Dec 2025 10-K 24 Feb 2026 2025 FY
Q3 2025 2,495,000,000 -39,000,000 -1.5% 01 Jul 2025 30 Sep 2025 10-Q 05 Nov 2025 2025 Q3
Q2 2025 2,510,000,000 -24,000,000 -0.95% 01 Apr 2025 30 Jun 2025 10-Q 05 Aug 2025 2025 Q2
Q1 2025 2,523,000,000 -10,000,000 -0.4% 01 Jan 2025 31 Mar 2025 10-Q 02 May 2025 2025 Q1
Q4 2024 2,532,000,000 -5,000,000 -0.2% 01 Oct 2024 31 Dec 2024 10-K 24 Feb 2026 2025 FY
Q3 2024 2,534,000,000 -3,000,000 -0.12% 01 Jul 2024 30 Sep 2024 10-Q 05 Nov 2025 2025 Q3
Q2 2024 2,534,000,000 -5,000,000 -0.2% 01 Apr 2024 30 Jun 2024 10-Q 05 Aug 2025 2025 Q2
Q1 2024 2,533,000,000 -5,000,000 -0.2% 01 Jan 2024 31 Mar 2024 10-Q 02 May 2025 2025 Q1
Q4 2023 2,537,000,000 +5,000,000 +0.2% 01 Oct 2023 31 Dec 2023 10-K 24 Feb 2026 2025 FY
Q3 2023 2,537,000,000 +4,000,000 +0.16% 01 Jul 2023 30 Sep 2023 10-Q 06 Nov 2024 2024 Q3
Q2 2023 2,539,000,000 +8,000,000 +0.32% 01 Apr 2023 30 Jun 2023 10-Q 05 Aug 2024 2024 Q2
Q1 2023 2,538,000,000 +10,000,000 +0.4% 01 Jan 2023 31 Mar 2023 10-Q 03 May 2024 2024 Q1
Q4 2022 2,532,000,000 +2,000,000 +0.08% 01 Oct 2022 31 Dec 2022 10-K 25 Feb 2025 2024 FY
Q3 2022 2,533,000,000 +3,000,000 +0.12% 01 Jul 2022 30 Sep 2022 10-Q 03 Nov 2023 2023 Q3
Q2 2022 2,531,000,000 -2,000,000 -0.08% 01 Apr 2022 30 Jun 2022 10-Q 07 Aug 2023 2023 Q2
Q1 2022 2,528,000,000 -3,000,000 -0.12% 01 Jan 2022 31 Mar 2022 10-Q 05 May 2023 2023 Q1
Q4 2021 2,530,000,000 0 0% 01 Oct 2021 31 Dec 2021 10-K 26 Feb 2024 2023 FY
Q3 2021 2,530,000,000 +1,000,000 +0.04% 01 Jul 2021 30 Sep 2021 10-Q 03 Nov 2022 2022 Q3
Q2 2021 2,533,000,000 +6,000,000 +0.24% 01 Apr 2021 30 Jun 2021 10-Q 05 Aug 2022 2022 Q2
Q1 2021 2,531,000,000 -2,000,000 -0.08% 01 Jan 2021 31 Mar 2021 10-Q 05 May 2022 2022 Q1
Q4 2020 2,530,000,000 -35,000,000 -1.4% 01 Oct 2020 31 Dec 2020 10-K 24 Feb 2023 2022 FY
Q3 2020 2,529,000,000 -29,000,000 -1.1% 01 Jul 2020 30 Sep 2020 10-Q 05 Nov 2021 2021 Q3
Q2 2020 2,527,000,000 -47,000,000 -1.8% 01 Apr 2020 30 Jun 2020 10-Q 09 Aug 2021 2021 Q2
Q1 2020 2,533,000,000 -52,000,000 -2% 01 Jan 2020 31 Mar 2020 10-Q 05 May 2021 2021 Q1
Q4 2019 2,565,000,000 -99,000,000 -3.7% 01 Oct 2019 31 Dec 2019 10-K 25 Feb 2022 2021 FY
Q3 2019 2,558,000,000 -104,000,000 -3.9% 01 Jul 2019 30 Sep 2019 10-Q 05 Nov 2020 2020 Q3
Q2 2019 2,574,000,000 -109,000,000 -4.1% 01 Apr 2019 30 Jun 2019 10-Q 05 Aug 2020 2020 Q2
Q1 2019 2,585,000,000 -110,000,000 -4.1% 01 Jan 2019 31 Mar 2019 10-Q 06 May 2020 2020 Q1
Q4 2018 2,664,000,000 -66,000,000 -2.4% 01 Oct 2018 31 Dec 2018 10-K 25 Feb 2021 2020 FY
Q3 2018 2,662,000,000 -65,000,000 -2.4% 01 Jul 2018 30 Sep 2018 10-Q 05 Nov 2019 2019 Q3
Q2 2018 2,683,000,000 -51,000,000 -1.9% 01 Apr 2018 30 Jun 2018 10-Q 06 Aug 2019 2019 Q2
Q1 2018 2,695,000,000 -50,000,000 -1.8% 01 Jan 2018 31 Mar 2018 10-Q 08 May 2019 2019 Q1
Q4 2017 2,730,000,000 -36,000,000 -1.3% 01 Oct 2017 31 Dec 2017 10-K 26 Feb 2020 2019 FY
Q3 2017 2,727,000,000 -38,000,000 -1.4% 01 Jul 2017 30 Sep 2017 10-Q 06 Nov 2018 2018 Q3
Q2 2017 2,734,000,000 -34,000,000 -1.2% 01 Apr 2017 30 Jun 2017 10-Q 07 Aug 2018 2018 Q2
Q1 2017 2,745,000,000 -29,000,000 -1% 01 Jan 2017 31 Mar 2017 10-Q 08 May 2018 2018 Q1
Q4 2016 2,766,000,000 -50,000,000 -1.8% 01 Oct 2016 31 Dec 2016 10-K 27 Feb 2019 2018 FY
Q3 2016 2,765,000,000 -49,000,000 -1.7% 01 Jul 2016 30 Sep 2016 10-Q 07 Nov 2017 2017 Q3
Q2 2016 2,768,000,000 -58,000,000 -2.1% 01 Apr 2016 30 Jun 2016 10-Q 08 Aug 2017 2017 Q2
Q1 2016 2,774,000,000 -61,000,000 -2.2% 01 Jan 2016 31 Mar 2016 10-Q 09 May 2017 2017 Q1
Q4 2015 2,816,000,000 -78,000,000 -2.7% 01 Oct 2015 31 Dec 2015 10-K 27 Feb 2018 2017 FY
Q3 2015 2,814,000,000 -65,000,000 -2.3% 01 Jul 2015 30 Sep 2015 10-Q 07 Nov 2016 2016 Q3
Q2 2015 2,826,000,000 -91,000,000 -3.1% 01 Apr 2015 30 Jun 2015 10-Q 08 Aug 2016 2016 Q2
Q1 2015 2,835,000,000 -99,000,000 -3.4% 01 Jan 2015 31 Mar 2015 10-Q 09 May 2016 2016 Q1
Q4 2014 2,894,000,000 -69,000,000 -2.3% 01 Oct 2014 31 Dec 2014 10-K 28 Feb 2017 2016 FY
Q3 2014 2,879,000,000 -48,000,000 -1.6% 01 Jul 2014 30 Sep 2014 10-Q 05 Nov 2015 2015 Q3
Q2 2014 2,917,000,000 -60,000,000 -2% 01 Apr 2014 30 Jun 2014 10-Q 06 Aug 2015 2015 Q2
Q1 2014 2,934,000,000 -88,000,000 -2.9% 01 Jan 2014 31 Mar 2014 10-Q 07 May 2015 2015 Q1
Q4 2013 2,963,000,000 -78,000,000 -2.6% 01 Oct 2013 31 Dec 2013 10-K 26 Feb 2016 2015 FY
Q3 2013 2,927,000,000 -118,000,000 -3.9% 01 Jul 2013 30 Sep 2013 10-Q 10 Nov 2014 2014 Q3
Q2 2013 2,977,000,000 -64,000,000 -2.1% 01 Apr 2013 30 Jun 2013 10-Q 07 Aug 2014 2014 Q2
Q1 2013 3,022,000,000 -21,000,000 -0.69% 01 Jan 2013 31 Mar 2013 10-Q 08 May 2014 2014 Q1
Q4 2012 3,041,000,000 -30,000,000 -0.98% 01 Oct 2012 31 Dec 2012 10-K 27 Feb 2015 2014 FY
Q3 2012 3,045,000,000 -25,000,000 -0.81% 01 Jul 2012 30 Sep 2012 10-Q 07 Nov 2013 2013 Q3
Q2 2012 3,041,000,000 -45,000,000 -1.5% 01 Apr 2012 30 Jun 2012 10-Q 07 Aug 2013 2013 Q2
Q1 2012 3,043,000,000 -41,000,000 -1.3% 01 Jan 2012 31 Mar 2012 10-Q 09 May 2013 2013 Q1
Q4 2011 3,071,000,000 01 Oct 2011 31 Dec 2011 10-K 27 Feb 2014 2013 FY
Q3 2011 3,070,000,000 -8,000,000 -0.26% 01 Jul 2011 30 Sep 2011 10-Q 09 Nov 2012 2012 Q3
Q2 2011 3,086,000,000 -19,000,000 -0.61% 01 Apr 2011 30 Jun 2011 10-Q 07 Aug 2012 2012 Q2
Q1 2011 3,084,000,000 -30,000,000 -0.96% 01 Jan 2011 31 Mar 2011 10-Q 08 May 2012 2012 Q1
Q3 2010 3,078,000,000 01 Jul 2010 30 Sep 2010 10-Q 08 Nov 2011 2011 Q3
Q2 2010 3,105,000,000 01 Apr 2010 30 Jun 2010 10-Q 08 Aug 2011 2011 Q2
Q1 2010 3,114,000,000 01 Jan 2010 31 Mar 2010 10-Q 09 May 2011 2011 Q1

Merck & Co., Inc. Annual Weighted Average Number of Shares Outstanding, Basic (shares)

Period Value YoY Chg Change % Start Date End Date Report Filed Fiscal Year Fiscal Period
2025 2,502,000,000 -30,000,000 -1.2% 01 Jan 2025 31 Dec 2025 10-K 24 Feb 2026 2025 FY
2024 2,532,000,000 -5,000,000 -0.2% 01 Jan 2024 31 Dec 2024 10-K 24 Feb 2026 2025 FY
2023 2,537,000,000 +5,000,000 +0.2% 01 Jan 2023 31 Dec 2023 10-K 24 Feb 2026 2025 FY
2022 2,532,000,000 +2,000,000 +0.08% 01 Jan 2022 31 Dec 2022 10-K 25 Feb 2025 2024 FY
2021 2,530,000,000 0 0% 01 Jan 2021 31 Dec 2021 10-K 26 Feb 2024 2023 FY
2020 2,530,000,000 -35,000,000 -1.4% 01 Jan 2020 31 Dec 2020 10-K 24 Feb 2023 2022 FY
2019 2,565,000,000 -99,000,000 -3.7% 01 Jan 2019 31 Dec 2019 10-K 25 Feb 2022 2021 FY
2018 2,664,000,000 -66,000,000 -2.4% 01 Jan 2018 31 Dec 2018 10-K 25 Feb 2021 2020 FY
2017 2,730,000,000 -36,000,000 -1.3% 01 Jan 2017 31 Dec 2017 10-K 26 Feb 2020 2019 FY
2016 2,766,000,000 -50,000,000 -1.8% 01 Jan 2016 31 Dec 2016 10-K 27 Feb 2019 2018 FY
2015 2,816,000,000 -78,000,000 -2.7% 01 Jan 2015 31 Dec 2015 10-K 27 Feb 2018 2017 FY
2014 2,894,000,000 -69,000,000 -2.3% 01 Jan 2014 31 Dec 2014 10-K 28 Feb 2017 2016 FY
2013 2,963,000,000 -78,000,000 -2.6% 01 Jan 2013 31 Dec 2013 10-K 26 Feb 2016 2015 FY
2012 3,041,000,000 -30,000,000 -0.98% 01 Jan 2012 31 Dec 2012 10-K 27 Feb 2015 2014 FY
2011 3,071,000,000 +3,070,996,905 01 Jan 2011 31 Dec 2011 10-K 27 Feb 2014 2013 FY
2010 3,095* 01 Jan 2010 31 Dec 2010 10-K 28 Feb 2013 2012 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.