TransAlta Corporation Ordinary Shares (TAC)

Shares Out (Basic)

302.00M

Quarterly · Period ending: Jun 30, 2026

TAC Shares Out (Basic)

Latest reported302.00Mperiod endingJun 30, 2026

TAC Quarterly Shares Out (Basic) (157.69M → 302.00M)

Quarterly shares out (basic)

High-resolution chart · PNG

TAC shares out (basic) history

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

TransAlta Corporation Ordinary Shares Shares Out (Basic) — Quarterly
Period ending	Shares Out (Basic)
Jun 30, 2026	302,000,000
Mar 31, 2026	297,000,000
Dec 31, 2025	297,000,000
Sep 30, 2025	234,726,041
Jun 30, 2025	298,000,000
Mar 31, 2025	298,000,000
Dec 31, 2024	296,000,000
Sep 30, 2024	296,000,000
Jun 30, 2024	303,000,000
Mar 31, 2024	308,000,000
Dec 31, 2023	308,000,000
Sep 30, 2023	263,000,000
Jun 30, 2023	264,000,000
Mar 31, 2023	268,000,000
Dec 31, 2022	268,100,000
Sep 30, 2022	271,000,000
Jun 30, 2022	271,000,000
Mar 31, 2022	271,000,000
Dec 31, 2021	271,000,000
Sep 30, 2021	271,000,000
Jun 30, 2021	270,000,000
Mar 31, 2021	270,000,000
Dec 31, 2020	270,000,000
Sep 30, 2020	274,000,000
Jun 30, 2020	276,000,000
Mar 31, 2020	277,000,000
Dec 31, 2019	277,000,000
Sep 30, 2019	282,000,000
Jun 30, 2019	284,000,000
Mar 31, 2019	285,000,000
Dec 31, 2018	285,000,000
Sep 30, 2018	287,000,000
Jun 30, 2018	288,000,000
Mar 31, 2018	288,000,000
Dec 31, 2017	288,000,000
Sep 30, 2017	288,000,000
Jun 30, 2017	288,000,000
Mar 31, 2017	288,000,000
Dec 31, 2016	288,000,000
Sep 30, 2016	288,000,000
Jun 30, 2016	288,000,000
Mar 31, 2016	288,000,000
Dec 31, 2015	283,000,000
Sep 30, 2015	281,000,000
Jun 30, 2015	279,000,000
Mar 31, 2015	277,000,000
Dec 31, 2014	276,000,000
Sep 30, 2014	273,000,000
Jun 30, 2014	272,000,000
Mar 31, 2014	270,000,000
Dec 31, 2013	268,000,000
Sep 30, 2013	266,000,000
Jun 30, 2013	262,000,000
Mar 31, 2013	258,000,000
Dec 31, 2012	253,000,000
Sep 30, 2012	234,000,000
Jun 30, 2012	227,000,000
Mar 31, 2012	225,000,000
Dec 31, 2011	222,000,000
Sep 30, 2011	223,000,000
Jun 30, 2011	222,000,000
Mar 31, 2011	221,000,000
Dec 31, 2010	216,000,000
Sep 30, 2010	220,000,000
Jun 30, 2010	219,000,000
Mar 31, 2010	219,000,000
Dec 31, 2009	210,000,000
Sep 30, 2009	198,000,000
Jun 30, 2009	198,000,000
Mar 31, 2009	198,000,000
Dec 31, 2008	198,000,000
Sep 30, 2008	198,000,000
Jun 30, 2008	199,000,000
Mar 31, 2008	200,000,000
Dec 31, 2007	199,000,000
Sep 30, 2007	203,000,000
Jun 30, 2007	203,000,000
Mar 31, 2007	199,999,175
Dec 31, 2006	202,300,000
Sep 30, 2006	196,111,672
Jun 30, 2006	200,931,270
Mar 31, 2006	199,500,000
Dec 31, 2005	198,300,000
Sep 30, 2005	196,100,000
Jun 30, 2005	195,300,000
Mar 31, 2005	195,100,000
Dec 31, 2004	194,200,000
Sep 30, 2004	193,000,000
Jun 30, 2004	192,200,000
Apr 22, 2004	191,400,000
Dec 31, 2003	190,400,000
Sep 30, 2003	189,800,000
Jun 30, 2003	181,100,000
Mar 31, 2003	172,400,000
Dec 31, 2002	169,900,000
Sep 30, 2002	169,200,000
Jun 30, 2002	169,200,000
Mar 31, 2002	169,050,000
Dec 31, 2001	169,000,000
Sep 30, 2001	168,800,000