Common Stock, Shares, Outstanding of ATI INC from 31 Mar 2010 to 28 Dec 2025

Taxonomy & unit
us-gaap: shares
Description
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
Summary
ATI INC quarterly Common Stock, Shares, Outstanding in shares history and change rate from 31 Mar 2010 to 28 Dec 2025.
  • ATI INC Common Stock, Shares, Outstanding for the quarter ending 28 Dec 2025 was 135,934,852, a 3.9% decline year-over-year.
Source SEC data
View on sec.gov
Common Stock, Shares, Outstanding, Quarterly (shares)
Common Stock, Shares, Outstanding, YoY Quarterly Change (%)

ATI INC Quarterly Common Stock, Shares, Outstanding (shares)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q4 2025 135,934,852 -5,452,197 -3.9% 28 Dec 2025 10-K 20 Feb 2026 2025 FY
Q3 2025 135,863,661 -6,767,847 -4.7% 28 Sep 2025 10-Q 28 Oct 2025 2025 Q3
Q2 2025 137,832,132 +13,368,318 +11% 29 Jun 2025 10-Q 31 Jul 2025 2025 Q2
Q1 2025 141,067,578 +16,626,177 +13% 30 Mar 2025 10-Q 01 May 2025 2025 Q1
Q4 2024 141,387,049 +14,507,950 +11% 29 Dec 2024 10-K 20 Feb 2026 2025 FY
Q3 2024 142,631,508 +15,055,113 +12% 29 Sep 2024 10-Q 29 Oct 2024 2024 Q3
Q2 2024 124,463,814 -4,120,913 -3.2% 30 Jun 2024 10-Q 06 Aug 2024 2024 Q2
Q1 2024 124,441,401 -4,105,209 -3.2% 31 Mar 2024 10-Q 30 Apr 2024 2024 Q1
Q4 2023 126,879,099 -1,393,943 -1.1% 31 Dec 2023 10-K 21 Feb 2025 2024 FY
Q3 2023 127,576,395 -1,841,269 -1.4% 30 Sep 2023 10-Q 02 Nov 2023 2023 Q3
Q2 2023 128,584,727 -1,317,411 -1% 30 Jun 2023 10-Q 02 Aug 2023 2023 Q2
Q1 2023 128,546,610 +4,425,260 +3.6% 31 Mar 2023 10-Q 04 May 2023 2023 Q1
Q4 2022 128,273,042 +1,019,997 +0.8% 31 Dec 2022 10-Q 02 Nov 2023 2023 Q3
Q3 2022 129,417,664 +2,169,316 +1.7% 30 Sep 2022 10-Q 03 Nov 2022 2022 Q3
Q2 2022 129,902,138 +2,658,230 +2.1% 30 Jun 2022 10-Q 04 Aug 2022 2022 Q2
Q1 2022 124,121,350 -3,081,722 -2.4% 31 Mar 2022 10-Q 04 May 2022 2022 Q1
Q4 2021 127,253,045 +435,277 +0.34% 31 Dec 2021 10-K 24 Feb 2023 2022 FY
Q3 2021 127,248,348 +432,592 +0.34% 30 Sep 2021 10-Q 02 Nov 2021 2021 Q3
Q2 2021 127,243,908 +430,830 +0.34% 30 Jun 2021 10-Q 03 Aug 2021 2021 Q2
Q1 2021 127,203,072 +576,134 +0.46% 31 Mar 2021 10-Q 29 Apr 2021 2021 Q1
Q4 2020 126,817,768 +732,420 +0.58% 31 Dec 2020 10-K 25 Feb 2022 2021 FY
Q3 2020 126,815,756 +730,408 +0.58% 30 Sep 2020 10-Q 29 Oct 2020 2020 Q3
Q2 2020 126,813,078 +733,962 +0.58% 30 Jun 2020 10-Q 04 Aug 2020 2020 Q2
Q1 2020 126,626,938 +592,058 +0.47% 31 Mar 2020 10-Q 05 May 2020 2020 Q1
Q4 2019 126,085,348 +400,952 +0.32% 31 Dec 2019 10-K 26 Feb 2021 2020 FY
Q3 2019 126,085,348 +400,952 +0.32% 30 Sep 2019 10-Q 01 Nov 2019 2019 Q3
Q2 2019 126,079,116 +394,720 +0.31% 30 Jun 2019 10-Q 06 Aug 2019 2019 Q2
Q1 2019 126,034,880 +387,654 +0.31% 31 Mar 2019 10-Q 30 Apr 2019 2019 Q1
Q4 2018 125,684,396 -172,801 -0.14% 31 Dec 2018 8-K 22 May 2020 2019 FY
Q3 2018 125,684,396 +16,821,297 +15% 30 Sep 2018 10-Q 31 Oct 2018 2018 Q3
Q2 2018 125,684,396 +16,804,714 +15% 30 Jun 2018 10-Q 07 Aug 2018 2018 Q2
Q1 2018 125,647,226 +16,822,236 +15% 31 Mar 2018 10-Q 01 May 2018 2018 Q1
Q4 2017 125,857,197 +16,931,943 +16% 31 Dec 2017 10-K 28 Feb 2019 2018 FY
Q3 2017 108,863,099 -64,141 -0.06% 30 Sep 2017 10-Q 01 Nov 2017 2017 Q3
Q2 2017 108,879,682 -53,764 -0.05% 30 Jun 2017 10-Q 02 Aug 2017 2017 Q2
Q1 2017 108,824,990 -91,753 -0.08% 31 Mar 2017 10-Q 02 May 2017 2017 Q1
Q4 2016 108,925,254 -249,628 -0.23% 31 Dec 2016 10-K 20 Feb 2018 2017 FY
Q3 2016 108,927,240 -280,760 -0.26% 30 Sep 2016 10-Q 02 Nov 2016 2016 Q3
Q2 2016 108,933,446 -276,284 -0.25% 30 Jun 2016 10-Q 03 Aug 2016 2016 Q2
Q1 2016 108,916,743 -255,302 -0.23% 31 Mar 2016 10-Q 06 May 2016 2016 Q1
Q4 2015 109,174,882 +463,968 +0.43% 31 Dec 2015 10-K 24 Feb 2017 2016 FY
Q3 2015 109,208,000 +496,999 +0.46% 30 Sep 2015 10-Q 29 Oct 2015 2015 Q3
Q2 2015 109,209,730 +487,704 +0.45% 30 Jun 2015 10-Q 30 Jul 2015 2015 Q2
Q1 2015 109,172,045 +604,086 +0.56% 31 Mar 2015 10-Q 04 May 2015 2015 Q1
Q4 2014 108,710,914 +727,554 +0.67% 31 Dec 2014 10-K 26 Feb 2016 2015 FY
Q3 2014 108,711,001 +703,514 +0.65% 30 Sep 2014 10-Q 31 Oct 2014 2014 Q3
Q2 2014 108,722,026 +721,483 +0.67% 30 Jun 2014 10-Q 04 Aug 2014 2014 Q2
Q1 2014 108,567,959 +610,156 +0.56% 31 Mar 2014 10-Q 05 May 2014 2014 Q1
Q4 2013 107,983,360 +584,397 +0.54% 31 Dec 2013 10-K 26 Feb 2015 2014 FY
Q3 2013 108,007,487 +783,864 +0.73% 30 Sep 2013 10-Q 01 Nov 2013 2013 Q3
Q2 2013 108,000,543 +836,753 +0.78% 30 Jun 2013 10-Q 05 Aug 2013 2013 Q2
Q1 2013 107,957,803 +863,738 +0.81% 31 Mar 2013 10-Q 06 May 2013 2013 Q1
Q4 2012 107,398,963 +1,044,351 +0.98% 31 Dec 2012 10-K 27 Feb 2014 2013 FY
Q3 2012 107,223,623 +870,869 +0.82% 30 Sep 2012 10-Q 02 Nov 2012 2012 Q3
Q2 2012 107,163,790 +833,948 +0.78% 30 Jun 2012 10-Q 03 Aug 2012 2012 Q2
Q1 2012 107,094,065 +8,150,470 +8.2% 31 Mar 2012 10-Q 04 May 2012 2012 Q1
Q4 2011 106,354,612 +7,812,321 +7.9% 31 Dec 2011 10-K 28 Feb 2013 2012 FY
Q3 2011 106,352,754 +7,773,639 +7.9% 30 Sep 2011 10-Q 04 Nov 2011 2011 Q3
Q2 2011 106,329,842 +7,755,919 +7.9% 30 Jun 2011 10-Q 04 Aug 2011 2011 Q2
Q1 2011 98,943,595 +393,563 +0.4% 31 Mar 2011 10-Q 05 May 2011 2011 Q1
Q4 2010 98,542,291 31 Dec 2010 10-K 27 Feb 2012 2011 FY
Q3 2010 98,579,115 30 Sep 2010 10-Q 03 Nov 2010 2010 Q3
Q2 2010 98,573,923 30 Jun 2010 10-Q 05 Aug 2010 2010 Q2
Q1 2010 98,550,032 31 Mar 2010 10-Q 07 May 2010 2010 Q1
* An asterisk sign (*) next to the value indicates that the value is likely invalid.