Trinseo PLC Common Stock Shares Outstanding

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Trinseo PLC reported Common Stock Shares Outstanding of 36.00 million shares for the year ending 2025.

  • Trinseo PLC showed an increase of +1.7% in Common Stock Shares Outstanding from 2024 to 2025.
  • This data is from Trinseo PLC's annual report (Form 10-K), filed with the SEC on March 13, 2026.
  • XBRL data for this metric is available from 2015 to 2025 (11 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
  • Quarterly values from 10-Q filings: Q4 2013: 37.27 million shares | Q2 2014: 48.77 million shares | Q3 2014: 48.77 million shares | Q4 2014: 48.77 million shares | Q1 2015: 48.77 million shares | Q2 2015: 48.78 million shares | Q3 2015: 48.78 million shares | Q1 2016: 47.18 million shares | Q2 2016: 46.40 million shares | Q3 2016: 44.65 million shares | Q1 2017: 44.07 million shares | Q2 2017: 43.73 million shares | Q3 2017: 43.70 million shares | Q1 2018: 43.40 million shares | Q2 2018: 43.00 million shares | Q3 2018: 42.50 million shares | Q1 2019: 41.00 million shares | Q2 2019: 40.60 million shares | Q3 2019: 39.50 million shares | Q1 2020: 38.20 million shares | Q2 2020: 38.30 million shares | Q3 2020: 38.30 million shares | Q1 2021: 38.70 million shares | Q2 2021: 38.80 million shares | Q3 2021: 38.80 million shares | Q1 2022: 37.20 million shares | Q2 2022: 36.30 million shares | Q3 2022: 35.10 million shares | Q1 2023: 35.20 million shares | Q2 2023: 35.20 million shares | Q3 2023: 35.20 million shares | Q1 2024: 35.30 million shares | Q2 2024: 35.40 million shares | Q3 2024: 35.40 million shares | Q1 2025: 35.60 million shares | Q2 2025: 36.00 million shares | Q3 2025: 36.00 million shares.
  • Over the full 11 years of available data (2015 to 2025), Trinseo PLC's Common Stock Shares Outstanding has declined by 26.2%.
  • Historical annual values: Fiscal year 2025: 36.00 million shares | Fiscal year 2024: 35.40 million shares | Fiscal year 2023: 35.20 million shares | Fiscal year 2022: 35.10 million shares | Fiscal year 2021: 37.90 million shares | Fiscal year 2020: 38.40 million shares | Fiscal year 2019: 39.00 million shares | Fiscal year 2018: 41.60 million shares | Fiscal year 2017: 43.40 million shares | Fiscal year 2016: 44.30 million shares | Fiscal year 2015: 48.78 million shares.
  • Data sourced from SEC EDGAR public filings as of August 9, 2026.

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