Unrecognized Tax Benefits of CENTURY ALUMINUM CO from 31 Dec 2010 to 31 Dec 2025

Taxonomy & unit
us-gaap: USD
Description
Amount of unrecognized tax benefits.
Summary
CENTURY ALUMINUM CO quarterly Unrecognized Tax Benefits in USD history and change rate from 31 Dec 2010 to 31 Dec 2025.
  • CENTURY ALUMINUM CO Unrecognized Tax Benefits for the quarter ending 31 Dec 2025 was $3,600,000, a 2.9% increase year-over-year.
Source SEC data
View on sec.gov
Unrecognized Tax Benefits, Quarterly (USD)
Unrecognized Tax Benefits, YoY Quarterly Change (%)

CENTURY ALUMINUM CO Quarterly Unrecognized Tax Benefits (USD)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q4 2025 $3,600,000 +$100,000 +2.9% 31 Dec 2025 10-K 03 Mar 2026 2025 FY
Q4 2024 $3,500,000 +$500,000 +17% 31 Dec 2024 10-K 03 Mar 2026 2025 FY
Q4 2023 $3,000,000 +$800,000 +36% 31 Dec 2023 10-K 03 Mar 2026 2025 FY
Q4 2022 $2,200,000 -$1,800,000 -45% 31 Dec 2022 10-K 03 Mar 2026 2025 FY
Q4 2021 $4,000,000 -$2,500,000 -38% 31 Dec 2021 10-K 03 Mar 2025 2024 FY
Q4 2020 $6,500,000 -$1,700,000 -21% 31 Dec 2020 10-K 15 Mar 2024 2023 FY
Q4 2019 $8,200,000 -$1,300,000 -14% 31 Dec 2019 10-K 27 Feb 2023 2022 FY
Q4 2018 $9,500,000 +$1,100,000 +13% 31 Dec 2018 10-K 25 Feb 2022 2021 FY
Q4 2017 $8,400,000 +$2,000,000 +31% 31 Dec 2017 10-K 04 Mar 2021 2020 FY
Q4 2016 $6,400,000 +$2,600,000 +68% 31 Dec 2016 10-K 27 Feb 2020 2019 FY
Q4 2015 $3,800,000 +$1,800,000 +90% 31 Dec 2015 10-K 28 Feb 2019 2018 FY
Q4 2014 $2,000,000 +$800,000 +67% 31 Dec 2014 10-K 28 Feb 2018 2017 FY
Q4 2013 $1,200,000 -$16,400,000 -93% 31 Dec 2013 8-K 28 Jul 2017
Q3 2013 $14,341,000 -$3,443,000 -19% 30 Sep 2013 10-Q 08 Nov 2013 2013 Q3
Q2 2013 $14,300,000 -$2,300,000 -14% 30 Jun 2013 10-Q 09 Aug 2013 2013 Q2
Q1 2013 $14,300,000 -$2,200,000 -13% 31 Mar 2013 10-Q 10 May 2013 2013 Q1
Q4 2012 $17,600,000 +$1,700,000 +11% 31 Dec 2012 10-K 07 Mar 2016 2015 Q4
Q3 2012 $17,784,000 30 Sep 2012 10-Q 09 Nov 2012 2012 Q3
Q2 2012 $16,600,000 30 Jun 2012 10-Q 09 Aug 2012 2012 Q2
Q1 2012 $16,500,000 31 Mar 2012 10-Q 10 May 2012 2012 Q1
Q4 2011 $15,900,000 -$700,000 -4.2% 31 Dec 2011 10-K 02 Mar 2015 2014 FY
Q4 2010 $16,600,000 31 Dec 2010 10-K 14 Mar 2014 2013 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.