Common Stock, Shares, Outstanding of ClearSign Technologies Corp from 31 Dec 2011 to 30 Sep 2025

Taxonomy & unit
us-gaap: shares
Description
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
Summary
ClearSign Technologies Corp quarterly Common Stock, Shares, Outstanding in shares history and change rate from 31 Dec 2011 to 30 Sep 2025.
  • ClearSign Technologies Corp Common Stock, Shares, Outstanding for the quarter ending 30 Sep 2025 was 52,517,048, a 4.5% increase year-over-year.
Source SEC data
View on sec.gov
Common Stock, Shares, Outstanding, Quarterly (shares)
Common Stock, Shares, Outstanding, YoY Quarterly Change (%)

ClearSign Technologies Corp Quarterly Common Stock, Shares, Outstanding (shares)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q3 2025 52,517,048 +2,282,641 +4.5% 30 Sep 2025 10-Q 14 Nov 2025 2025 Q3
Q2 2025 52,426,282 +2,220,625 +4.4% 30 Jun 2025 10-Q 14 Aug 2025 2025 Q2
Q1 2025 52,422,532 +13,379,509 +34% 31 Mar 2025 10-Q 15 May 2025 2025 Q1
Q4 2024 50,285,509 +11,598,448 +30% 31 Dec 2024 10-Q 14 Nov 2025 2025 Q3
Q3 2024 50,234,407 +11,668,571 +30% 30 Sep 2024 10-Q 14 Nov 2024 2024 Q3
Q2 2024 50,205,657 +11,643,571 +30% 30 Jun 2024 10-Q 14 Aug 2024 2024 Q2
Q1 2024 39,043,023 +497,467 +1.3% 31 Mar 2024 10-Q 15 May 2024 2024 Q1
Q4 2023 38,687,061 +663,360 +1.7% 31 Dec 2023 10-K 31 Mar 2025 2024 FY
Q3 2023 38,565,836 +545,885 +1.4% 30 Sep 2023 10-Q 14 Nov 2023 2023 Q3
Q2 2023 38,562,086 +2,212,205 +6.1% 30 Jun 2023 10-Q 14 Aug 2023 2023 Q2
Q1 2023 38,545,556 +6,390,810 +20% 31 Mar 2023 10-Q 15 May 2023 2023 Q1
Q4 2022 38,023,701 +6,442,035 +20% 31 Dec 2022 10-K 01 Apr 2024 2023 FY
Q3 2022 38,019,951 +6,445,247 +20% 30 Sep 2022 10-Q 14 Nov 2022 2022 Q3
Q2 2022 36,349,881 +4,870,427 +15% 30 Jun 2022 10-Q 15 Aug 2022 2022 Q2
Q1 2022 32,154,746 +1,017,248 +3.3% 31 Mar 2022 10-Q 16 May 2022 2022 Q1
Q4 2021 31,581,666 +1,504,230 +5% 31 Dec 2021 10-K 31 Mar 2023 2022 FY
Q3 2021 31,574,704 +1,531,518 +5.1% 30 Sep 2021 10-Q 12 Nov 2021 2021 Q3
Q2 2021 31,479,454 +4,748,193 +18% 30 Jun 2021 10-Q 20 Aug 2021 2021 Q2
Q1 2021 31,137,498 +4,427,737 +17% 31 Mar 2021 10-Q 17 May 2021 2021 Q1
Q4 2020 30,077,436 +3,370,175 +13% 31 Dec 2020 10-K 31 Mar 2022 2021 FY
Q3 2020 30,043,186 +3,338,425 +13% 30 Sep 2020 10-Q 13 Nov 2020 2020 Q3
Q2 2020 26,731,261 +29,000 +0.11% 30 Jun 2020 10-Q 14 Aug 2020 2020 Q2
Q1 2020 26,709,761 +10,000 +0.04% 31 Mar 2020 10-Q 14 May 2020 2020 Q1
Q4 2019 26,707,261 +10,000 +0.04% 31 Dec 2019 10-K 31 Mar 2021 2020 FY
Q3 2019 26,704,761 +43,781 +0.16% 30 Sep 2019 10-Q 13 Nov 2019 2019 Q3
Q2 2019 26,702,261 +5,284,352 +25% 30 Jun 2019 10-Q 14 Aug 2019 2019 Q2
Q1 2019 26,699,761 +5,338,408 +25% 31 Mar 2019 10-Q 14 May 2019 2019 Q1
Q4 2018 26,697,261 +11,088,408 +71% 31 Dec 2018 10-K 30 Mar 2020 2019 FY
Q3 2018 26,660,980 +11,054,627 +71% 30 Sep 2018 10-Q 08 Nov 2018 2018 Q3
Q2 2018 21,417,909 +5,814,056 +37% 30 Jun 2018 10-Q 13 Aug 2018 2018 Q2
Q1 2018 21,361,353 +5,760,000 +37% 31 Mar 2018 10-Q 10 May 2018 2018 Q1
Q4 2017 15,608,853 +2,624,915 +20% 31 Dec 2017 10-K 12 Mar 2019 2018 FY
Q3 2017 15,606,353 +2,635,943 +20% 30 Sep 2017 10-Q 09 Nov 2017 2017 Q3
Q2 2017 15,603,853 +2,646,971 +20% 30 Jun 2017 10-Q 14 Aug 2017 2017 Q2
Q1 2017 15,601,353 +2,718,882 +21% 31 Mar 2017 10-Q 11 May 2017 2017 Q1
Q4 2016 12,983,938 +114,995 +0.89% 31 Dec 2016 10-K 27 Mar 2018 2017 FY
Q3 2016 12,970,410 +150,410 +1.2% 30 Sep 2016 10-Q 14 Nov 2016 2016 Q3
Q2 2016 12,956,882 +145,664 +1.1% 30 Jun 2016 10-Q 11 Aug 2016 2016 Q2
Q1 2016 12,882,471 +91,807 +0.72% 31 Mar 2016 10-Q 12 May 2016 2016 Q1
Q4 2015 12,868,943 +3,187,467 +33% 31 Dec 2015 10-K 14 Feb 2017 2016 FY
Q3 2015 12,820,000 +3,152,269 +33% 30 Sep 2015 10-Q 12 Nov 2015 2015 Q3
Q2 2015 12,811,218 +3,173,898 +33% 30 Jun 2015 10-Q 13 Aug 2015 2015 Q2
Q1 2015 12,790,664 +3,158,751 +33% 31 Mar 2015 10-Q 14 May 2015 2015 Q1
Q4 2014 9,681,476 +870,802 +9.9% 31 Dec 2014 10-K 03 Mar 2016 2015 FY
Q3 2014 9,667,731 +857,057 +9.7% 30 Sep 2014 10-Q 13 Nov 2014 2014 Q3
Q2 2014 9,637,320 +844,055 +9.6% 30 Jun 2014 10-Q 12 Aug 2014 2014 Q2
Q1 2014 9,631,913 +849,898 +9.7% 31 Mar 2014 10-Q 08 May 2014 2014 Q1
Q4 2013 8,810,674 +58,659 +0.67% 31 Dec 2013 10-K 26 Feb 2015 2014 FY
Q3 2013 8,810,674 +58,659 +0.67% 30 Sep 2013 10-Q 12 Nov 2013 2013 Q3
Q2 2013 8,793,265 +41,250 +0.47% 30 Jun 2013 10-Q 14 Aug 2013 2013 Q2
Q1 2013 8,782,015 +3,624,299 +70% 31 Mar 2013 10-Q 06 May 2013 2013 Q1
Q4 2012 8,752,015 +3,598,799 +70% 31 Dec 2012 10-K 11 Mar 2014 2013 FY
Q3 2012 8,752,015 30 Sep 2012 10-Q 08 Nov 2012 2012 Q3
Q2 2012 8,752,015 30 Jun 2012 10-Q 06 Aug 2012 2012 Q2
Q1 2012 5,157,716 31 Mar 2012 10-Q 11 Jun 2012 2012 Q1
Q4 2011 5,153,216 31 Dec 2011 10-K 22 Feb 2013 2012 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.