Costar (CSGP) Shares Outstanding (2009 - 2026)

Costar (CSGP) has 18 years of Shares Outstanding data on file, last reported at $407.1 million in Q1 2026.

• Shares Outstanding for Q1 2026 came in at $407.1 million, down 3.8% year-over-year; the trailing twelve-month figure through Mar 2026 was $407.1 million (down 3.8% YoY), and the FY2025 annual result was $417.9 million, up 2.05% from the prior year.
• Shares Outstanding eased to $407.1 million in Q1 2026 per CSGP's latest filing, from $417.9 million in the prior quarter.
• Over five years, Shares Outstanding peaked at $424.9 million in Q3 2025 and troughed at $395.9 million in Q1 2022.
• A 5-year average of $410.1 million and a median of $408.1 million in 2023 frame the typical range for Shares Outstanding.
• The sharpest annual moves came in 2025 and 2026: Shares Outstanding advanced 3.76% in 2025, then decreased 3.8% in 2026.
• A 5-year view of Shares Outstanding shows it stood at $406.7 million in 2022, then rose by 0.34% to $408.1 million in 2023, then rose by 0.34% to $409.5 million in 2024, then grew by 2.05% to $417.9 million in 2025, then slipped by 2.58% to $407.1 million in 2026.
• Business Quant data shows CSGP's Shares Outstanding at $407.1 million in Q1 2026, $417.9 million in Q4 2025, and $424.9 million in Q3 2025.