Louise S. Sams - 06 Mar 2026 Form 4 Insider Report for COSTAR GROUP, INC. (CSGP)

Role
Director
Signature
/s/ Gene Boxer, Attorney-in-Fact
Issuer symbol
CSGP
Transactions as of
06 Mar 2026
Net transactions value
+$48,360
Form type
4
Filing time
09 Mar 2026, 08:00:08 UTC
Previous filing
11 Sep 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Sams Louise S Director C/O COSTAR GROUP, INC., 1201 WILSON BLVD., ARLINGTON /s/ Gene Boxer, Attorney-in-Fact 09 Mar 2026 0001796961

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CSGP Common Stock, par value $0.01 per share Purchase $48,360 +1,000 +5.2% $48.36 20,409 06 Mar 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Remarks:

Exhibit 24 - Power of Attorney