Westlake (WLK) Shares Outstanding (2010 - 2026)

Westlake's Shares Outstanding (Entity) history runs 17 years deep, the most recent figure standing at $128.1 million for Q1 2026.

• On a quarterly basis, Shares Outstanding (Entity) changed 0.09% year-over-year to $128.1 million in Q1 2026; TTM through Mar 2026 was $128.1 million, a 0.09% change from a year earlier, with the FY2025 full-year figure at $134.7 million, changed 0.0% from the prior year.
• Shares Outstanding (Entity) fell to $128.1 million in Q1 2026 per WLK's latest filing, from $134.7 million in the prior quarter.
• Across five years, Shares Outstanding (Entity) topped out at $134.7 million in Q4 2022 and bottomed at $127.5 million in Q3 2022.
• The 5-year median for Shares Outstanding (Entity) is $128.3 million (2025), against an average of $129.7 million.
• Across the five-year window, Shares Outstanding (Entity) retreated 0.54% in 2023 and advanced 0.73% in 2024, its largest moves.
• Year by year, Shares Outstanding (Entity) stood at $134.7 million in 2022, then changed by 0.0% to $134.7 million in 2023, then changed by 0.0% to $134.7 million in 2024, then changed by 0.0% to $134.7 million in 2025, then decreased by 4.85% to $128.1 million in 2026.
• Per Business Quant, the three latest WLK Shares Outstanding (Entity) figures stand at $128.1 million (Q1 2026), $134.7 million (Q4 2025), and $128.3 million (Q3 2025).