Trinseo PLC (TSEOQ) Shares Outstanding (2013 - 2026)

Trinseo (TSEOQ) has reported Shares Outstanding (Entity) for 14 consecutive years, with $40.7 million the latest figure, recorded in Q1 2026.

• In Q1 2026, Shares Outstanding (Entity) rose 2.26% year-over-year to $40.7 million; the TTM figure through Mar 2026 stood at $40.7 million (up 2.26% YoY), while the FY2025 annual figure was $40.1 million, up 1.26% from the prior year.
• Shares Outstanding (Entity) improved to $40.7 million in Q1 2026 per TSEOQ's latest filing, from $40.1 million in the prior quarter.
• Across five years, Shares Outstanding (Entity) topped out at $40.7 million in Q1 2026 and bottomed at $39.1 million in Q1 2022.
• Historically, Shares Outstanding (Entity) has averaged $39.6 million across 5 years, with a median of $39.4 million in 2023.
• Annual changes were most pronounced in 2024 — Shares Outstanding (Entity) increased 0.25% — and 2026, when it increased 2.26%.
• Trinseo's Shares Outstanding (Entity) stood at $39.2 million in 2022, then rose by 0.51% to $39.4 million in 2023, then increased by 0.51% to $39.6 million in 2024, then increased by 1.26% to $40.1 million in 2025, then increased by 1.5% to $40.7 million in 2026.
• Business Quant data shows TSEOQ's Shares Outstanding (Entity) at $40.7 million in Q1 2026, $40.1 million in Q4 2025, and $40.1 million in Q3 2025.