CSGP Filing
4Filing Date: Aug 5, 2026
COSTAR GROUP, INC. (CSGP) · Insider Trading (Form 4) SEC Filing
Statement of Changes in Beneficial Ownership
descriptionView SEC Filing
ACC: 0001628280-26-052968open_in_new
Total Value$2.49M
Trades1
Insiders1
Transaction Details
FLORANCE ANDREW C
Founder and CEO, Director·Direct
Buy · Acquire
Common Stock, par value $0.01 per share
Shares+83.30K
Price$29.89
Total Value$2.49M
Shares Owned After1.81M
Transaction DateAug 4, 2026
Footnotes ▸
Average based on sales prices ranging from $29.57 to $29.99.
Post-Transaction Holdings
FLORANCE ANDREW C
| Security | Shares | Change |
|---|---|---|
| Common Stock, par value $0.01 per share | 1.81M | +83.30K (4.83%) |
Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-08-04
10b5-1 Pre-arranged Plan: No
--- Issuer ---
Name: COSTAR GROUP, INC. (CSGP)
CIK: 0001057352
--- Reporting Owner ---
Name: FLORANCE ANDREW C
CIK: 0001066061
Role: Director, Officer (Founder and CEO)
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock, par value $0.01 per share
Date: 2026-08-04 | Code: P (Open market purchase)
Shares: +83,300 | Price: $29.89
Total Value: $2,489,837.00
Shares Owned After: 1,806,165.03 | Ownership: D (Direct)
Footnotes:
[F1] Average based on sales prices ranging from $29.57 to $29.99.
--- Footnotes (Complete Index) ---
F1: Average based on sales prices ranging from $29.57 to $29.99.
--- Signature ---
/s/ /s/ Gene Boxer, Attorney-in-Fact (2026-08-05)