COSTAR GROUP, INC. (CSGP) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Low Risk
Limited dilution potential
Last updated: April 29, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 4.17% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
410M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

CSGP currently has 413M outstanding shares. with minimal authorized share overhang for future dilution. The company has minimally diluted shareholders by 4.17% over the past 2 years.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Apr 29, 2026

10-Q filing | 413.0M shares outstanding

410M 0
Oct 29, 2025

10-Q filing | 419.9M shares outstanding

420M 0
Jul 23, 2025

10-Q filing | 424.3M shares outstanding

420M 0
May 01, 2025

10-Q filing | 410.5M shares outstanding

410M 0
Feb 20, 2025

10-K filing | 407.8M shares outstanding

410M 0
Oct 23, 2024

10-Q filing | 408.0M shares outstanding

410M 0
Jul 25, 2024

10-Q filing | 407.4M shares outstanding

410M 0
Apr 24, 2024

10-Q filing | 407.3M shares outstanding

410M 0
Feb 22, 2024

10-K filing | 406.9M shares outstanding

410M 0
Oct 25, 2023

10-Q filing | 407.2M shares outstanding

410M 0
Jul 26, 2023

10-Q filing | 406.8M shares outstanding

410M 0
Apr 26, 2023

10-Q filing | 406.2M shares outstanding

410M 0
Feb 22, 2023

10-K filing | 397.8M shares outstanding

400M 0
Oct 26, 2022

10-Q filing | 396.2M shares outstanding

400M 0
Jul 27, 2022

10-Q filing | 394.5M shares outstanding

390M 0
Apr 28, 2022

10-Q filing | 394.2M shares outstanding

390M 0
Feb 23, 2022

10-K filing | 394.2M shares outstanding

390M 0
Oct 27, 2021

10-Q filing | 394.3M shares outstanding

390M 0
Jul 28, 2021

10-Q filing | 394.1M shares outstanding

390M 0
Apr 28, 2021

10-Q filing | 39.4M shares outstanding

39M 0
Feb 24, 2021

10-K filing | 38.3M shares outstanding

38M 0
Oct 28, 2020

10-Q filing | 39.4M shares outstanding

39M 0
Jul 29, 2020

10-Q filing | 37.7M shares outstanding

38M 0
May 28, 2020

8-K filing: CoStar Group, Inc. issued 2,290,076 shares of its common stock for an aggregate purchase price of $1.5 billion on May 26, 2020, and subsequently issued 343,511 option shares for $225.0 million on May 28, 2020, after the Underwriters exercised their option in full. ($1725.0M proceeds)

37M 0
Apr 29, 2020

10-Q filing | 36.8M shares outstanding

37M 0
Feb 26, 2020

10-K filing | 36.3M shares outstanding

36M 0
Weekly Research

Get Weekly Super Stonk Alerts

Never miss a squeeze opportunity. Get our weekly analysis of high short interest stocks, AI-discovered gems, and dilution warnings delivered to your inbox.

No spam Unsubscribe anytime