Weighted Average Number of Shares Outstanding, Basic of Arthur J. Gallagher & Co. from 30 Jun 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
Arthur J. Gallagher & Co. quarterly and annual Weighted Average Number of Shares Outstanding, Basic in shares history and change rate from 30 Jun 2010 to 31 Dec 2025.
  • Arthur J. Gallagher & Co. Weighted Average Number of Shares Outstanding, Basic for the quarter ending 31 Dec 2025 was 256,100,000, a 16% increase year-over-year.
  • Arthur J. Gallagher & Co. annual Weighted Average Number of Shares Outstanding, Basic for 2025 was 256,100,000, a 16% increase from 2024.
  • Arthur J. Gallagher & Co. annual Weighted Average Number of Shares Outstanding, Basic for 2024 was 220,500,000, a 2.6% increase from 2023.
  • Arthur J. Gallagher & Co. annual Weighted Average Number of Shares Outstanding, Basic for 2023 was 214,900,000, a 2.2% 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 (%)

Arthur J. Gallagher & Co. 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 256,100,000 +35,600,000 +16% 01 Oct 2025 31 Dec 2025 10-K 17 Feb 2026 2025 FY
Q3 2025 256,600,000 +37,300,000 +17% 01 Jul 2025 30 Sep 2025 10-Q 10 Nov 2025 2025 Q3
Q2 2025 256,200,000 +37,400,000 +17% 01 Apr 2025 30 Jun 2025 10-Q 01 Aug 2025 2025 Q2
Q1 2025 254,800,000 +37,300,000 +17% 01 Jan 2025 31 Mar 2025 10-Q 02 May 2025 2025 Q1
Q4 2024 220,500,000 +5,600,000 +2.6% 01 Oct 2024 31 Dec 2024 10-K 17 Feb 2026 2025 FY
Q3 2024 219,300,000 +3,600,000 +1.7% 01 Jul 2024 30 Sep 2024 10-Q 10 Nov 2025 2025 Q3
Q2 2024 218,800,000 +3,900,000 +1.8% 01 Apr 2024 30 Jun 2024 10-Q 01 Aug 2025 2025 Q2
Q1 2024 217,500,000 +4,700,000 +2.2% 01 Jan 2024 31 Mar 2024 10-Q 02 May 2025 2025 Q1
Q4 2023 214,900,000 +4,600,000 +2.2% 01 Oct 2023 31 Dec 2023 10-K 17 Feb 2026 2025 FY
Q3 2023 215,700,000 +5,000,000 +2.4% 01 Jul 2023 30 Sep 2023 10-Q 29 Oct 2024 2024 Q3
Q2 2023 214,900,000 +4,700,000 +2.2% 01 Apr 2023 30 Jun 2023 10-Q 26 Jul 2024 2024 Q2
Q1 2023 212,800,000 +3,800,000 +1.8% 01 Jan 2023 31 Mar 2023 10-Q 01 May 2024 2024 Q1
Q4 2022 210,300,000 +7,600,000 +3.7% 01 Oct 2022 31 Dec 2022 10-K 18 Feb 2025 2024 FY
Q3 2022 210,700,000 +3,700,000 +1.8% 01 Jul 2022 30 Sep 2022 10-Q 27 Oct 2023 2023 Q3
Q2 2022 210,200,000 +8,900,000 +4.4% 01 Apr 2022 30 Jun 2022 10-Q 04 Aug 2023 2023 Q2
Q1 2022 209,000,000 +14,400,000 +7.4% 01 Jan 2022 31 Mar 2022 10-Q 08 May 2023 2023 Q1
Q4 2021 202,700,000 +11,700,000 +6.1% 01 Oct 2021 31 Dec 2021 10-K 09 Feb 2024 2023 FY
Q3 2021 207,000,000 +15,100,000 +7.9% 01 Jul 2021 30 Sep 2021 10-Q 02 Nov 2022 2022 Q3
Q2 2021 201,300,000 +10,800,000 +5.7% 01 Apr 2021 30 Jun 2021 10-Q 03 Aug 2022 2022 Q2
Q1 2021 194,600,000 +5,900,000 +3.1% 01 Jan 2021 31 Mar 2021 10-Q 06 May 2022 2022 Q1
Q4 2020 191,000,000 +5,000,000 +2.7% 01 Oct 2020 31 Dec 2020 10-K 10 Feb 2023 2022 FY
Q3 2020 191,900,000 +5,600,000 +3% 01 Jul 2020 30 Sep 2020 10-Q 29 Oct 2021 2021 Q3
Q2 2020 190,500,000 +4,700,000 +2.5% 01 Apr 2020 30 Jun 2020 10-Q 30 Jul 2021 2021 Q2
Q1 2020 188,700,000 +4,200,000 +2.3% 01 Jan 2020 31 Mar 2020 10-Q 30 Apr 2021 2021 Q1
Q4 2019 186,000,000 +3,300,000 +1.8% 01 Oct 2019 31 Dec 2019 10-K 18 Feb 2022 2021 FY
Q3 2019 186,300,000 +3,000,000 +1.6% 01 Jul 2019 30 Sep 2019 10-Q 30 Oct 2020 2020 Q3
Q2 2019 185,800,000 +3,400,000 +1.9% 01 Apr 2019 30 Jun 2019 10-Q 31 Jul 2020 2020 Q2
Q1 2019 184,500,000 +3,000,000 +1.7% 01 Jan 2019 31 Mar 2019 10-Q 05 May 2020 2020 Q1
Q4 2018 182,700,000 +2,600,000 +1.4% 01 Oct 2018 31 Dec 2018 10-K 08 Feb 2021 2020 FY
Q3 2018 183,300,000 +2,800,000 +1.6% 01 Jul 2018 30 Sep 2018 10-Q 25 Oct 2019 2019 Q3
Q2 2018 182,400,000 +2,500,000 +1.4% 01 Apr 2018 30 Jun 2018 10-Q 26 Jul 2019 2019 Q2
Q1 2018 181,500,000 +2,600,000 +1.5% 01 Jan 2018 31 Mar 2018 10-Q 29 Apr 2019 2019 Q1
Q4 2017 180,100,000 +2,500,000 +1.4% 01 Oct 2017 31 Dec 2017 10-K 07 Feb 2020 2019 FY
Q3 2017 180,500,000 +2,900,000 +1.6% 01 Jul 2017 30 Sep 2017 10-Q 26 Oct 2018 2018 Q3
Q2 2017 179,900,000 +2,500,000 +1.4% 01 Apr 2017 30 Jun 2017 10-Q 27 Jul 2018 2018 Q2
Q1 2017 178,900,000 +1,900,000 +1.1% 01 Jan 2017 31 Mar 2017 10-Q 07 May 2018 2018 Q1
Q4 2016 177,600,000 +5,400,000 +3.1% 01 Oct 2016 31 Dec 2016 10-K 08 Feb 2019 2018 FY
Q3 2016 177,600,000 +1,600,000 +0.91% 01 Jul 2016 30 Sep 2016 10-Q 30 Oct 2017 2017 Q3
Q2 2016 177,400,000 +6,800,000 +4% 01 Apr 2016 30 Jun 2016 10-Q 28 Jul 2017 2017 Q2
Q1 2016 177,000,000 +11,400,000 +6.9% 01 Jan 2016 31 Mar 2016 10-Q 28 Apr 2017 2017 Q1
Q4 2015 172,200,000 +19,300,000 +13% 01 Oct 2015 31 Dec 2015 10-K 12 Feb 2018 2017 FY
Q3 2015 176,000,000 +15,800,000 +9.9% 01 Jul 2015 30 Sep 2015 10-Q 28 Oct 2016 2016 Q3
Q2 2015 170,600,000 +16,300,000 +11% 01 Apr 2015 30 Jun 2015 10-Q 29 Jul 2016 2016 Q2
Q1 2015 165,600,000 +31,400,000 +23% 01 Jan 2015 31 Mar 2015 10-Q 02 May 2016 2016 Q1
Q4 2014 152,900,000 +24,000,000 +19% 01 Oct 2014 31 Dec 2014 10-K 13 Feb 2017 2016 FY
Q3 2014 160,200,000 +30,400,000 +23% 01 Jul 2014 30 Sep 2014 10-Q 28 Oct 2015 2015 Q3
Q2 2014 154,300,000 +27,000,000 +21% 01 Apr 2014 30 Jun 2014 10-Q 31 Jul 2015 2015 Q2
Q1 2014 134,200,000 +8,100,000 +6.4% 01 Jan 2014 31 Mar 2014 10-Q 28 Apr 2015 2015 Q1
Q4 2013 128,900,000 +7,900,000 +6.5% 01 Oct 2013 31 Dec 2013 10-K 10 Feb 2016 2015 FY
Q3 2013 129,800,000 +6,700,000 +5.4% 01 Jul 2013 30 Sep 2013 10-Q 29 Oct 2014 2014 Q3
Q2 2013 127,300,000 +7,600,000 +6.3% 01 Apr 2013 30 Jun 2013 10-Q 01 Aug 2014 2014 Q2
Q1 2013 126,100,000 +9,700,000 +8.3% 01 Jan 2013 31 Mar 2013 10-Q 24 Apr 2014 2014 Q1
Q4 2012 121,000,000 +9,300,000 +8.3% 01 Oct 2012 31 Dec 2012 10-K 13 Feb 2015 2014 FY
Q3 2012 123,100,000 +10,500,000 +9.3% 01 Jul 2012 30 Sep 2012 10-Q 30 Oct 2013 2013 Q3
Q2 2012 119,700,000 +8,700,000 +7.8% 01 Apr 2012 30 Jun 2012 10-Q 31 Jul 2013 2013 Q2
Q1 2012 116,400,000 +7,100,000 +6.5% 01 Jan 2012 31 Mar 2012 10-Q 01 May 2013 2013 Q1
Q4 2011 111,700,000 01 Oct 2011 31 Dec 2011 10-K 07 Feb 2014 2013 FY
Q3 2011 112,600,000 +7,100,000 +6.7% 01 Jul 2011 30 Sep 2011 10-Q 31 Oct 2012 2012 Q3
Q2 2011 111,000,000 +6,600,000 +6.3% 01 Apr 2011 30 Jun 2011 10-Q 01 Aug 2012 2012 Q2
Q1 2011 109,300,000 01 Jan 2011 31 Mar 2011 10-Q 02 May 2012 2012 Q1
Q3 2010 105,500,000 01 Jul 2010 30 Sep 2010 10-Q 28 Oct 2011 2011 Q3
Q2 2010 104,400,000 01 Apr 2010 30 Jun 2010 10-Q 03 Aug 2011 2011 Q2

Arthur J. Gallagher & Co. 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 256,100,000 +35,600,000 +16% 01 Jan 2025 31 Dec 2025 10-K 17 Feb 2026 2025 FY
2024 220,500,000 +5,600,000 +2.6% 01 Jan 2024 31 Dec 2024 10-K 17 Feb 2026 2025 FY
2023 214,900,000 +4,600,000 +2.2% 01 Jan 2023 31 Dec 2023 10-K 17 Feb 2026 2025 FY
2022 210,300,000 +7,600,000 +3.7% 01 Jan 2022 31 Dec 2022 10-K 18 Feb 2025 2024 FY
2021 202,700,000 +11,700,000 +6.1% 01 Jan 2021 31 Dec 2021 10-K 09 Feb 2024 2023 FY
2020 191,000,000 +5,000,000 +2.7% 01 Jan 2020 31 Dec 2020 10-K 10 Feb 2023 2022 FY
2019 186,000,000 +3,300,000 +1.8% 01 Jan 2019 31 Dec 2019 10-K 18 Feb 2022 2021 FY
2018 182,700,000 +2,600,000 +1.4% 01 Jan 2018 31 Dec 2018 10-K 08 Feb 2021 2020 FY
2017 180,100,000 +2,500,000 +1.4% 01 Jan 2017 31 Dec 2017 10-K 07 Feb 2020 2019 FY
2016 177,600,000 +5,400,000 +3.1% 01 Jan 2016 31 Dec 2016 10-K 08 Feb 2019 2018 FY
2015 172,200,000 +19,300,000 +13% 01 Jan 2015 31 Dec 2015 10-K 12 Feb 2018 2017 FY
2014 152,900,000 +24,000,000 +19% 01 Jan 2014 31 Dec 2014 10-K 13 Feb 2017 2016 FY
2013 128,900,000 +7,900,000 +6.5% 01 Jan 2013 31 Dec 2013 10-K 10 Feb 2016 2015 FY
2012 121,000,000 +9,300,000 +8.3% 01 Jan 2012 31 Dec 2012 10-K 13 Feb 2015 2014 FY
2011 111,700,000 +6,900,000 +6.6% 01 Jan 2011 31 Dec 2011 10-K 07 Feb 2014 2013 FY
2010 104,800,000 01 Jan 2010 31 Dec 2010 10-K 08 Feb 2013 2012 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.