Entity Common Stock, Shares Outstanding of AFFILIATED MANAGERS GROUP, INC. from 03 Aug 2010 to 12 Feb 2026

Taxonomy & unit
dei: shares
Description
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.
Summary
AFFILIATED MANAGERS GROUP, INC. quarterly Entity Common Stock, Shares Outstanding in shares history and change rate from 03 Aug 2010 to 12 Feb 2026.
  • AFFILIATED MANAGERS GROUP, INC. Entity Common Stock, Shares Outstanding for the quarter ending 12 Feb 2026 was 26,684,730, a 8.8% decline year-over-year.
Source SEC data
View on sec.gov
Entity Common Stock, Shares Outstanding, Quarterly (shares)
Entity Common Stock, Shares Outstanding, YoY Quarterly Change (%)

AFFILIATED MANAGERS GROUP, INC. Quarterly Entity Common Stock, Shares Outstanding (shares)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q4 2025 26,684,730 -2,572,284 -8.8% 12 Feb 2026 10-K 17 Feb 2026 2025 FY
Q3 2025 28,128,908 -2,096,224 -6.9% 04 Nov 2025 10-Q 06 Nov 2025 2025 Q3
Q2 2025 28,412,063 -1,401,904 -4.7% 05 Aug 2025 10-Q 07 Aug 2025 2025 Q2
Q1 2025 28,428,889 -3,435,567 -11% 06 May 2025 10-Q 08 May 2025 2025 Q1
Q4 2024 29,257,014 -3,537,113 -11% 12 Feb 2025 10-K 14 Feb 2025 2024 FY
Q3 2024 30,225,132 -3,583,504 -11% 05 Nov 2024 10-Q 07 Nov 2024 2024 Q3
Q2 2024 29,813,967 -5,232,963 -15% 31 Jul 2024 10-Q 02 Aug 2024 2024 Q2
Q1 2024 31,864,456 -4,237,430 -12% 03 May 2024 10-Q 07 May 2024 2024 Q1
Q4 2023 32,794,127 14 Feb 2024 10-K 16 Feb 2024 2023 FY
Q3 2023 33,808,636 -3,859,998 -10% 02 Nov 2023 10-Q 06 Nov 2023 2023 Q3
Q2 2023 35,046,930 -3,179,528 -8.3% 03 Aug 2023 10-Q 07 Aug 2023 2023 Q2
Q1 2023 36,101,886 -2,573,208 -6.7% 04 May 2023 10-Q 08 May 2023 2023 Q1
Q3 2022 37,668,634 -2,982,680 -7.3% 03 Nov 2022 10-Q 07 Nov 2022 2022 Q3
Q2 2022 38,226,458 -2,979,358 -7.2% 02 Aug 2022 10-Q 04 Aug 2022 2022 Q2
Q1 2022 38,675,094 -2,961,570 -7.1% 04 May 2022 10-Q 06 May 2022 2022 Q1
Q3 2021 40,651,314 -4,709,745 -10% 03 Nov 2021 10-Q 05 Nov 2021 2021 Q3
Q2 2021 41,205,816 -5,347,267 -11% 03 Aug 2021 10-Q 05 Aug 2021 2021 Q2
Q1 2021 41,636,664 -5,601,793 -12% 05 May 2021 10-Q 07 May 2021 2021 Q1
Q3 2020 45,361,059 -3,911,100 -7.9% 28 Oct 2020 10-Q 30 Oct 2020 2020 Q3
Q2 2020 46,553,083 -4,086,471 -8.1% 29 Jul 2020 10-Q 31 Jul 2020 2020 Q2
Q1 2020 47,238,457 -3,960,887 -7.7% 30 Apr 2020 10-Q 04 May 2020 2020 Q1
Q3 2019 49,272,159 -3,400,726 -6.5% 30 Oct 2019 10-Q 01 Nov 2019 2019 Q3
Q2 2019 50,639,554 -2,792,394 -5.2% 30 Jul 2019 10-Q 01 Aug 2019 2019 Q2
Q1 2019 51,199,344 -3,115,802 -5.7% 07 May 2019 10-Q 09 May 2019 2019 Q1
Q3 2018 52,672,885 -2,909,030 -5.2% 30 Oct 2018 10-Q 01 Nov 2018 2018 Q3
Q2 2018 53,431,948 -2,528,402 -4.5% 01 Aug 2018 10-Q 02 Aug 2018 2018 Q2
Q1 2018 54,315,146 -2,287,336 -4% 02 May 2018 10-Q 04 May 2018 2018 Q1
Q3 2017 55,581,915 +764,482 +1.4% 01 Nov 2017 10-Q 02 Nov 2017 2017 Q3
Q2 2017 55,960,350 +2,088,303 +3.9% 01 Aug 2017 10-Q 03 Aug 2017 2017 Q2
Q1 2017 56,602,482 +2,790,932 +5.2% 02 May 2017 10-Q 05 May 2017 2017 Q1
Q3 2016 54,817,433 +780,449 +1.4% 01 Nov 2016 10-Q 07 Nov 2016 2016 Q3
Q2 2016 53,872,047 -411,995 -0.76% 01 Aug 2016 10-Q 05 Aug 2016 2016 Q2
Q1 2016 53,811,550 -912,295 -1.7% 03 May 2016 10-Q 10 May 2016 2016 Q1
Q3 2015 54,036,984 -1,535,634 -2.8% 02 Nov 2015 10-Q 09 Nov 2015 2015 Q3
Q2 2015 54,284,042 -1,268,678 -2.3% 30 Jul 2015 10-Q 04 Aug 2015 2015 Q2
Q1 2015 54,723,845 -557,191 -1% 01 May 2015 10-Q 05 May 2015 2015 Q1
Q3 2014 55,572,618 +2,593,776 +4.9% 03 Nov 2014 10-Q 06 Nov 2014 2014 Q3
Q2 2014 55,552,720 +2,700,519 +5.1% 28 Jul 2014 10-Q 06 Aug 2014 2014 Q2
Q1 2014 55,281,036 +2,543,299 +4.8% 29 Apr 2014 10-Q 06 May 2014 2014 Q1
Q3 2013 52,978,842 +1,177,429 +2.3% 05 Nov 2013 10-Q 12 Nov 2013 2013 Q3
Q2 2013 52,852,201 +1,504,073 +2.9% 02 Aug 2013 10-Q 06 Aug 2013 2013 Q2
Q1 2013 52,737,737 +1,376,761 +2.7% 01 May 2013 10-Q 07 May 2013 2013 Q1
Q3 2012 51,801,413 +331,379 +0.64% 02 Nov 2012 10-Q 06 Nov 2012 2012 Q3
Q2 2012 51,348,128 -707,862 -1.4% 02 Aug 2012 10-Q 08 Aug 2012 2012 Q2
Q1 2012 51,360,976 -692,214 -1.3% 02 May 2012 10-Q 08 May 2012 2012 Q1
Q3 2011 51,470,034 -101,794 -0.2% 01 Nov 2011 10-Q 04 Nov 2011 2011 Q3
Q2 2011 52,055,990 +958,331 +1.9% 03 Aug 2011 10-Q 09 Aug 2011 2011 Q2
Q1 2011 52,053,190 05 May 2011 10-Q 10 May 2011 2011 Q1
Q3 2010 51,571,828 05 Nov 2010 10-Q 09 Nov 2010 2010 Q3
Q2 2010 51,097,659 03 Aug 2010 10-Q 09 Aug 2010 2010 Q2
* An asterisk sign (*) next to the value indicates that the value is likely invalid.