Weighted Average Number of Shares Outstanding, Basic of Ecovyst Inc. from 31 Dec 2015 to 31 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
Ecovyst Inc. quarterly and annual Weighted Average Number of Shares Outstanding, Basic in shares history and change rate from 31 Dec 2015 to 31 Dec 2025.
  • Ecovyst Inc. Weighted Average Number of Shares Outstanding, Basic for the quarter ending 31 Dec 2025 was 113,357,158, a 2.7% decline year-over-year.
  • Ecovyst Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2025 was 115,291,879, a 1.2% decline from 2024.
  • Ecovyst Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2024 was 116,719,437, a 1.4% decline from 2023.
  • Ecovyst Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2023 was 118,367,214, a 11% decline 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 (%)

Ecovyst 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 113,357,158 -3,161,775 -2.7% 01 Oct 2025 31 Dec 2025 10-K 27 Feb 2026 2025 FY
Q3 2025 113,901,834 -2,588,800 -2.2% 01 Jul 2025 30 Sep 2025 10-K 27 Feb 2026 2025 FY
Q2 2025 116,232,528 -679,804 -0.58% 01 Apr 2025 30 Jun 2025 10-K 27 Feb 2026 2025 FY
Q1 2025 117,264,124 +309,081 +0.26% 01 Jan 2025 31 Mar 2025 10-K 27 Feb 2026 2025 FY
Q4 2024 116,518,933 -1,848,281 -1.6% 01 Oct 2024 31 Dec 2024 10-K 27 Feb 2026 2025 FY
Q3 2024 116,490,634 +44,549 +0.04% 01 Jul 2024 30 Sep 2024 10-K 27 Feb 2026 2025 FY
Q2 2024 116,912,332 -1,739,070 -1.5% 01 Apr 2024 30 Jun 2024 10-K 27 Feb 2026 2025 FY
Q1 2024 116,955,043 -5,223,824 -4.3% 01 Jan 2024 31 Mar 2024 10-K 27 Feb 2026 2025 FY
Q4 2023 118,367,214 -7,594,897 -6% 01 Oct 2023 31 Dec 2023 10-K 27 Feb 2026 2025 FY
Q3 2023 116,446,085 -16,176,020 -12% 01 Jul 2023 30 Sep 2023 10-Q 01 Nov 2024 2024 Q3
Q2 2023 118,651,402 -19,384,362 -14% 01 Apr 2023 30 Jun 2023 10-Q 02 Aug 2024 2024 Q2
Q1 2023 122,178,867 -15,505,906 -11% 01 Jan 2023 31 Mar 2023 10-Q 03 May 2024 2024 Q1
Q4 2022 125,962,111 -10,294,490 -7.6% 01 Oct 2022 31 Dec 2022 10-K 28 Feb 2023 2022 FY
Q3 2022 132,622,105 -3,507,486 -2.6% 01 Jul 2022 30 Sep 2022 10-Q 03 Nov 2023 2023 Q3
Q2 2022 138,035,764 +1,940,704 +1.4% 01 Apr 2022 30 Jun 2022 10-Q 08 Aug 2023 2023 Q2
Q1 2022 137,684,773 +1,678,691 +1.2% 01 Jan 2022 31 Mar 2022 10-Q 05 May 2023 2023 Q1
Q4 2021 136,256,601 +850,520 +0.63% 01 Oct 2021 31 Dec 2021 10-K 28 Feb 2023 2022 FY
Q3 2021 136,129,591 +1,022,622 +0.76% 01 Jul 2021 30 Sep 2021 10-K 28 Feb 2023 2022 FY
Q2 2021 136,095,060 +1,011,934 +0.75% 01 Apr 2021 30 Jun 2021 10-K 28 Feb 2023 2022 FY
Q1 2021 136,006,082 +765,185 +0.57% 01 Jan 2021 31 Mar 2021 10-K 28 Feb 2023 2022 FY
Q4 2020 135,406,081 +493,869 +0.37% 01 Oct 2020 31 Dec 2020 10-K 01 Mar 2022 2021 FY
Q3 2020 135,106,969 +595,150 +0.44% 01 Jul 2020 30 Sep 2020 10-K 01 Mar 2022 2021 FY
Q2 2020 135,083,126 +940,574 +0.7% 01 Apr 2020 30 Jun 2020 10-K 01 Mar 2022 2021 FY
Q1 2020 135,240,897 +1,294,589 +0.97% 01 Jan 2020 31 Mar 2020 10-K 01 Mar 2022 2021 FY
Q4 2019 134,912,212 +1,146,918 +0.86% 01 Oct 2019 31 Dec 2019 8-K 16 Nov 2021
Q3 2019 134,511,819 +1,175,467 +0.88% 01 Jul 2019 30 Sep 2019 8-K 16 Nov 2021
Q2 2019 134,142,552 +920,089 +0.69% 01 Apr 2019 30 Jun 2019 8-K 16 Nov 2021
Q1 2019 133,946,308 +792,164 +0.6% 01 Jan 2019 31 Mar 2019 8-K 16 Nov 2021
Q4 2018 133,765,294 +627,154 +0.47% 01 Oct 2018 31 Dec 2018 10-K 27 Feb 2020 2019 FY
Q3 2018 133,336,352 +29,239,515 +28% 01 Jul 2018 30 Sep 2018 10-K 27 Feb 2020 2019 FY
Q2 2018 133,222,463 +29,206,648 +28% 01 Apr 2018 30 Jun 2018 10-K 27 Feb 2020 2019 FY
Q1 2018 133,154,144 +29,206,256 +28% 01 Jan 2018 31 Mar 2018 10-K 27 Feb 2020 2019 FY
Q4 2017 133,138,140 +29,190,252 +28% 01 Oct 2017 31 Dec 2017 10-K 01 Mar 2019 2018 FY
Q3 2017 104,096,837 +313,118 +0.3% 01 Jul 2017 30 Sep 2017 10-K 01 Mar 2019 2018 FY
Q2 2017 104,015,815 +26,173,599 +34% 01 Apr 2017 30 Jun 2017 10-K 01 Mar 2019 2018 FY
Q1 2017 103,947,888 +81,253,727 +358% 01 Jan 2017 31 Mar 2017 10-K 01 Mar 2019 2018 FY
Q4 2016 103,947,888 01 Oct 2016 31 Dec 2016 10-K 22 Mar 2018 2017 FY
Q3 2016 103,783,719 01 Jul 2016 30 Sep 2016 10-K 22 Mar 2018 2017 FY
Q2 2016 77,842,216 01 Apr 2016 30 Jun 2016 10-K 22 Mar 2018 2017 FY
Q1 2016 22,694,161 01 Jan 2016 31 Mar 2016 10-K 22 Mar 2018 2017 FY

Ecovyst 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 115,291,879 -1,427,558 -1.2% 01 Jan 2025 31 Dec 2025 10-K 27 Feb 2026 2025 FY
2024 116,719,437 -1,647,777 -1.4% 01 Jan 2024 31 Dec 2024 10-K 27 Feb 2026 2025 FY
2023 118,367,214 -15,234,108 -11% 01 Jan 2023 31 Dec 2023 10-K 27 Feb 2026 2025 FY
2022 133,601,322 -2,566,062 -1.9% 01 Jan 2022 31 Dec 2022 10-K 28 Feb 2025 2024 FY
2021 136,167,384 +638,407 +0.47% 01 Jan 2021 31 Dec 2021 10-K 29 Feb 2024 2023 FY
2020 135,528,977 +1,139,310 +0.85% 01 Jan 2020 31 Dec 2020 10-K 28 Feb 2023 2022 FY
2019 134,389,667 +1,009,100 +0.76% 01 Jan 2019 31 Dec 2019 10-K 01 Mar 2022 2021 FY
2018 133,380,567 +22,080,897 +20% 01 Jan 2018 31 Dec 2018 8-K 16 Nov 2021
2017 111,299,670 +33,283,665 +43% 01 Jan 2017 31 Dec 2017 10-K 27 Feb 2020 2019 FY
2016 78,016,005 +55,400,218 +245% 01 Jan 2016 31 Dec 2016 10-K 01 Mar 2019 2018 FY
2015 22,615,787 01 Jan 2015 31 Dec 2015 10-K 22 Mar 2018 2017 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.