Costar (CSGP) Shares Outstanding (2010 - 2026)

Costar (CSGP) has 17 years of Shares Outstanding (Entity) data on file, last reported at $408.4 million in Q1 2026.

• On a quarterly basis, Shares Outstanding (Entity) fell 3.21% year-over-year to $408.4 million in Q1 2026; TTM through Mar 2026 was $408.4 million, a 3.21% decrease from a year earlier, with the FY2025 full-year figure at $425.0 million, up 3.79% from the prior year.
• Shares Outstanding (Entity) for Q1 2026 stood at $408.4 million, down from $425.0 million in the prior quarter.
• Over the last five years, Shares Outstanding (Entity) for CSGP reached as high as $425.0 million in Q4 2025 and fell as low as $395.9 million in Q2 2022.
• Historically, Shares Outstanding (Entity) has averaged $410.5 million across 5 years, with a median of $408.4 million in 2023.
• Across the five-year window, Shares Outstanding (Entity) increased 3.79% in 2025 and declined 3.21% in 2026, its largest moves.
• Year by year, Shares Outstanding (Entity) stood at $406.7 million in 2022, then grew by 0.35% to $408.1 million in 2023, then climbed by 0.34% to $409.5 million in 2024, then gained by 3.79% to $425.0 million in 2025, then decreased by 3.92% to $408.4 million in 2026.
• Per Business Quant data, the three most recent Shares Outstanding (Entity) figures were $408.4 million in Q1 2026, $425.0 million in Q4 2025, and $423.8 million in Q3 2025.