AMG common stock history

Quarterly · USD. Dates are reporting period ends; fiscal years can differ from calendar years.

Affiliated Managers Group, Inc. Common Stock Common Stock — Quarterly (USD)
Period ending	Common Stock (USD)
Jun 30, 2026	600,000
Mar 31, 2026	600,000
Dec 31, 2025	600,000
Sep 30, 2025	600,000
Jun 30, 2025	600,000
Mar 31, 2025	600,000
Dec 31, 2024	600,000
Sep 30, 2024	600,000
Jun 30, 2024	600,000
Mar 31, 2024	600,000
Dec 31, 2023	600,000
Sep 30, 2023	600,000
Jun 30, 2023	600,000
Mar 31, 2023	600,000
Dec 31, 2022	600,000
Sep 30, 2022	600,000
Jun 30, 2022	600,000
Mar 31, 2022	600,000
Dec 31, 2021	600,000
Sep 30, 2021	600,000
Jun 30, 2021	600,000
Mar 31, 2021	600,000
Dec 31, 2020	600,000
Sep 30, 2020	600,000
Jun 30, 2020	600,000
Mar 31, 2020	600,000
Dec 31, 2019	600,000
Sep 30, 2019	600,000
Jun 30, 2019	600,000
Mar 31, 2019	600,000
Dec 31, 2018	600,000
Sep 30, 2018	600,000
Jun 30, 2018	600,000
Mar 31, 2018	600,000
Dec 31, 2017	600,000
Sep 30, 2017	600,000
Jun 30, 2017	600,000
Mar 31, 2017	600,000
Dec 31, 2016	600,000
Sep 30, 2016	600,000
Jun 30, 2016	600,000
Mar 31, 2016	600,000
Dec 31, 2015	600,000
Sep 30, 2015	600,000
Jun 30, 2015	600,000
Mar 31, 2015	600,000
Dec 31, 2014	600,000
Sep 30, 2014	600,000
Jun 30, 2014	600,000
Mar 31, 2014	600,000
Dec 31, 2013	500,000
Sep 30, 2013	500,000
Jun 30, 2013	500,000
Mar 31, 2013	500,000
Dec 31, 2012	500,000
Sep 30, 2012	500,000
Jun 30, 2012	500,000
Mar 31, 2012	500,000
Dec 31, 2011	500,000
Sep 30, 2011	500,000
Jun 30, 2011	500,000
Mar 31, 2011	500,000
Dec 31, 2010	500,000
Sep 30, 2010	539,000
Jun 30, 2010	508,000
Mar 31, 2010	458,000
Dec 31, 2009	458,000
Sep 30, 2009	458,000
Jun 30, 2009	458,000
Mar 31, 2009	458,000
Dec 31, 2008	458,000
Sep 30, 2008	458,000
Jun 30, 2008	458,000
Mar 31, 2008	458,000
Dec 31, 2007	390,000
Sep 30, 2007	390,000
Jun 30, 2007	390,000
Mar 31, 2007	390,000
Dec 31, 2006	390,000
Sep 30, 2006	390,000
Jun 30, 2006	390,000
Mar 31, 2006	390,000
Dec 31, 2005	390,000
Sep 30, 2005	390,000
Jun 30, 2005	387,000
Mar 31, 2005	387,000
Dec 31, 2004	387,000
Sep 30, 2004	353,000
Jun 30, 2004	353,000
Mar 31, 2004	353,000
Dec 31, 2003	235,000
Sep 30, 2003	235,000
Jun 30, 2003	235,000
Mar 31, 2003	235,000
Dec 31, 2002	235,000
Sep 30, 2002	235,000
Jun 30, 2002	235,000
Mar 31, 2002	235,000
Dec 31, 2001	235,000
Sep 30, 2001	235,000