Weighted Average Number of Shares Outstanding, Basic of ATI INC from 31 Mar 2010 to 28 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
ATI INC quarterly and annual Weighted Average Number of Shares Outstanding, Basic in shares history and change rate from 31 Mar 2010 to 28 Dec 2025.
  • ATI INC Weighted Average Number of Shares Outstanding, Basic for the quarter ending 28 Dec 2025 was 138,600,000, a 6.3% increase year-over-year.
  • ATI INC annual Weighted Average Number of Shares Outstanding, Basic for 2025 was 138,600,000, a 6.3% increase from 2024.
  • ATI INC annual Weighted Average Number of Shares Outstanding, Basic for 2024 was 130,400,000, a 1.8% increase from 2023.
  • ATI INC annual Weighted Average Number of Shares Outstanding, Basic for 2023 was 128,100,000, a 0.47% 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 (%)

ATI INC 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 138,600,000 +8,200,000 +6.3% 29 Sep 2025 28 Dec 2025 10-K 20 Feb 2026 2025 FY
Q3 2025 137,000,000 +8,300,000 +6.4% 30 Jun 2025 28 Sep 2025 10-Q 28 Oct 2025 2025 Q3
Q2 2025 139,800,000 +15,400,000 +12% 31 Mar 2025 29 Jun 2025 10-Q 31 Jul 2025 2025 Q2
Q1 2025 141,700,000 +15,500,000 +12% 30 Dec 2024 30 Mar 2025 10-Q 01 May 2025 2025 Q1
Q4 2024 130,400,000 +2,300,000 +1.8% 30 Sep 2024 29 Dec 2024 10-K 20 Feb 2026 2025 FY
Q3 2024 128,700,000 +600,000 +0.47% 01 Jul 2024 29 Sep 2024 10-Q 28 Oct 2025 2025 Q3
Q2 2024 124,400,000 -4,100,000 -3.2% 01 Apr 2024 30 Jun 2024 10-Q 31 Jul 2025 2025 Q2
Q1 2024 126,200,000 -2,300,000 -1.8% 01 Jan 2024 31 Mar 2024 10-Q 01 May 2025 2025 Q1
Q4 2023 128,100,000 +600,000 +0.47% 01 Oct 2023 31 Dec 2023 10-K 20 Feb 2026 2025 FY
Q3 2023 128,100,000 -1,700,000 -1.3% 01 Jul 2023 30 Sep 2023 10-Q 02 Nov 2023 2023 Q3
Q2 2023 128,500,000 +3,900,000 +3.1% 01 Apr 2023 30 Jun 2023 10-Q 02 Aug 2023 2023 Q2
Q1 2023 128,500,000 +2,100,000 +1.7% 01 Jan 2023 31 Mar 2023 10-Q 04 May 2023 2023 Q1
Q4 2022 127,500,000 +400,000 +0.32% 01 Oct 2022 31 Dec 2022 10-K 24 Feb 2023 2022 FY
Q3 2022 129,800,000 +2,600,000 +2% 01 Jul 2022 30 Sep 2022 10-Q 02 Nov 2023 2023 Q3
Q2 2022 124,600,000 -2,500,000 -2% 01 Apr 2022 30 Jun 2022 10-Q 02 Aug 2023 2023 Q2
Q1 2022 126,400,000 -400,000 -0.32% 01 Jan 2022 31 Mar 2022 10-Q 04 May 2023 2023 Q1
Q4 2021 127,100,000 +300,000 +0.24% 01 Oct 2021 31 Dec 2021 10-K 24 Feb 2023 2022 FY
Q3 2021 127,200,000 +600,000 +0.47% 01 Jul 2021 30 Sep 2021 10-Q 03 Nov 2022 2022 Q3
Q2 2021 127,100,000 +500,000 +0.4% 01 Apr 2021 30 Jun 2021 10-Q 04 Aug 2022 2022 Q2
Q1 2021 126,800,000 +700,000 +0.56% 01 Jan 2021 31 Mar 2021 10-Q 04 May 2022 2022 Q1
Q4 2020 126,800,000 +700,000 +0.56% 01 Oct 2020 31 Dec 2020 10-K 26 Feb 2021 2020 FY
Q3 2020 126,600,000 +500,000 +0.4% 01 Jul 2020 30 Sep 2020 10-Q 02 Nov 2021 2021 Q3
Q2 2020 126,600,000 +500,000 +0.4% 01 Apr 2020 30 Jun 2020 10-Q 03 Aug 2021 2021 Q2
Q1 2020 126,100,000 +300,000 +0.24% 01 Jan 2020 31 Mar 2020 10-Q 29 Apr 2021 2021 Q1
Q4 2019 126,100,000 +400,000 +0.32% 01 Oct 2019 31 Dec 2019 10-K 26 Feb 2021 2020 FY
Q3 2019 126,100,000 +400,000 +0.32% 01 Jul 2019 30 Sep 2019 10-K 26 Feb 2021 2020 FY
Q2 2019 126,100,000 +400,000 +0.32% 01 Apr 2019 30 Jun 2019 10-K 26 Feb 2021 2020 FY
Q1 2019 125,800,000 +100,000 +0.08% 01 Jan 2019 31 Mar 2019 10-K 26 Feb 2021 2020 FY
Q4 2018 125,700,000 +7,100,000 +6% 01 Oct 2018 31 Dec 2018 8-K 22 May 2020 2019 FY
Q3 2018 125,700,000 +16,800,000 +15% 01 Jul 2018 30 Sep 2018 8-K 22 May 2020 2019 FY
Q2 2018 125,700,000 +16,800,000 +15% 01 Apr 2018 30 Jun 2018 8-K 22 May 2020 2019 FY
Q1 2018 125,700,000 +16,900,000 +16% 01 Jan 2018 31 Mar 2018 8-K 22 May 2020 2019 FY
Q4 2017 118,600,000 +9,700,000 +8.9% 01 Oct 2017 31 Dec 2017 10-K 28 Feb 2019 2018 FY
Q3 2017 108,900,000 0 0% 01 Jul 2017 30 Sep 2017 10-K 28 Feb 2019 2018 FY
Q2 2017 108,900,000 0 0% 01 Apr 2017 30 Jun 2017 10-K 28 Feb 2019 2018 FY
Q1 2017 108,800,000 -200,000 -0.18% 01 Jan 2017 31 Mar 2017 10-K 28 Feb 2019 2018 FY
Q4 2016 108,900,000 -300,000 -0.28% 01 Oct 2016 31 Dec 2016 10-K 20 Feb 2018 2017 FY
Q3 2016 108,900,000 -300,000 -0.28% 01 Jul 2016 30 Sep 2016 10-K 20 Feb 2018 2017 FY
Q2 2016 108,900,000 -300,000 -0.28% 01 Apr 2016 30 Jun 2016 10-K 20 Feb 2018 2017 FY
Q1 2016 109,000,000 +100,000 +0.09% 01 Jan 2016 31 Mar 2016 10-K 20 Feb 2018 2017 FY
Q4 2015 109,200,000 +495,017 +0.46% 01 Oct 2015 31 Dec 2015 10-K 24 Feb 2017 2016 FY
Q3 2015 109,200,000 +487,318 +0.45% 01 Jul 2015 30 Sep 2015 10-K 24 Feb 2017 2016 FY
Q2 2015 109,200,000 +571,976 +0.53% 01 Apr 2015 30 Jun 2015 10-K 24 Feb 2017 2016 FY
Q1 2015 108,900,000 +726,419 +0.67% 01 Jan 2015 31 Mar 2015 10-K 24 Feb 2017 2016 FY
Q4 2014 108,704,983 +720,448 +0.67% 01 Oct 2014 31 Dec 2014 10-K 26 Feb 2016 2015 FY
Q3 2014 108,712,682 +711,376 +0.66% 01 Jul 2014 30 Sep 2014 10-K 26 Feb 2016 2015 FY
Q2 2014 108,628,024 +647,271 +0.6% 01 Apr 2014 30 Jun 2014 10-K 26 Feb 2016 2015 FY
Q1 2014 108,173,581 +559,113 +0.52% 01 Jan 2014 31 Mar 2014 10-K 26 Feb 2016 2015 FY
Q4 2013 107,984,535 +662,594 +0.62% 01 Oct 2013 31 Dec 2013 10-K 26 Feb 2015 2014 FY
Q3 2013 108,001,306 +815,721 +0.76% 01 Jul 2013 30 Sep 2013 10-K 26 Feb 2015 2014 FY
Q2 2013 107,980,753 +855,317 +0.8% 01 Apr 2013 30 Jun 2013 10-K 26 Feb 2015 2014 FY
Q1 2013 107,614,468 +867,591 +0.81% 01 Jan 2013 31 Mar 2013 10-K 26 Feb 2015 2014 FY
Q4 2012 107,321,941 +963,073 +0.9% 01 Oct 2012 31 Dec 2012 10-K 27 Feb 2014 2013 FY
Q3 2012 107,185,585 +843,768 +0.79% 01 Jul 2012 30 Sep 2012 10-K 27 Feb 2014 2013 FY
Q2 2012 107,125,436 +3,720,433 +3.6% 01 Apr 2012 30 Jun 2012 10-K 27 Feb 2014 2013 FY
Q1 2012 106,746,877 +7,978,930 +8.1% 01 Jan 2012 31 Mar 2012 10-K 27 Feb 2014 2013 FY
Q4 2011 106,358,868 +7,765,123 +7.9% 01 Oct 2011 31 Dec 2011 10-K 28 Feb 2013 2012 FY
Q3 2011 106,341,817 +7,765,700 +7.9% 01 Jul 2011 30 Sep 2011 10-K 28 Feb 2013 2012 FY
Q2 2011 103,405,003 +4,841,229 +4.9% 01 Apr 2011 30 Jun 2011 10-K 28 Feb 2013 2012 FY
Q1 2011 98,767,947 +450,628 +0.46% 01 Jan 2011 31 Mar 2011 10-K 28 Feb 2013 2012 FY
Q4 2010 98,593,745 01 Oct 2010 31 Dec 2010 10-K 27 Feb 2012 2011 FY
Q3 2010 98,576,117 01 Jul 2010 30 Sep 2010 10-K 27 Feb 2012 2011 FY
Q2 2010 98,563,774 01 Apr 2010 30 Jun 2010 10-K 27 Feb 2012 2011 FY
Q1 2010 98,317,319 01 Jan 2010 31 Mar 2010 10-K 27 Feb 2012 2011 FY

ATI INC 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 138,600,000 +8,200,000 +6.3% 30 Dec 2024 28 Dec 2025 10-K 20 Feb 2026 2025 FY
2024 130,400,000 +2,300,000 +1.8% 01 Jan 2024 29 Dec 2024 10-K 20 Feb 2026 2025 FY
2023 128,100,000 +600,000 +0.47% 02 Jan 2023 31 Dec 2023 10-K 20 Feb 2026 2025 FY
2022 127,500,000 +400,000 +0.32% 01 Jan 2022 31 Dec 2022 10-K 24 Feb 2023 2022 FY
2021 127,100,000 +600,000 +0.47% 01 Jan 2021 31 Dec 2021 10-K 24 Feb 2023 2022 FY
2020 126,500,000 +700,000 +0.56% 01 Jan 2020 31 Dec 2020 10-K 24 Feb 2023 2022 FY
2019 125,800,000 +600,000 +0.48% 01 Jan 2019 31 Dec 2019 10-K 25 Feb 2022 2021 FY
2018 125,200,000 +15,100,000 +14% 01 Jan 2018 31 Dec 2018 10-K 26 Feb 2021 2020 FY
2017 110,100,000 +2,800,000 +2.6% 01 Jan 2017 31 Dec 2017 8-K 22 May 2020 2019 FY
2016 107,300,000 0 0% 01 Jan 2016 31 Dec 2016 10-K 28 Feb 2019 2018 FY
2015 107,300,000 +200,000 +0.19% 01 Jan 2015 31 Dec 2015 10-K 20 Feb 2018 2017 FY
2014 107,100,000 +300,000 +0.28% 01 Jan 2014 31 Dec 2014 10-K 24 Feb 2017 2016 FY
2013 106,800,000 +700,000 +0.66% 01 Jan 2013 31 Dec 2013 10-K 26 Feb 2016 2015 FY
2012 106,100,000 +3,600,000 +3.5% 01 Jan 2012 31 Dec 2012 10-K 26 Feb 2015 2014 FY
2011 102,500,000 +5,100,000 +5.2% 01 Jan 2011 31 Dec 2011 10-K 27 Feb 2014 2013 FY
2010 97,400,000 01 Jan 2010 31 Dec 2010 10-K 28 Feb 2013 2012 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.