FRANK SIMURO - 19 Feb 2026 Form 4 Insider Report for COSTAR GROUP, INC. (CSGP)

Role
Chief Technology Officer
Signature
/s/ Gene Boxer, Attorney-in-Fact
Issuer symbol
CSGP
Transactions as of
19 Feb 2026
Net transactions value
-$216,938
Form type
4
Filing time
23 Feb 2026, 17:18:12 UTC
Previous filing
18 Feb 2026
Next filing
03 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SIMURO FRANK Chief Technology Officer C/O COSTAR GROUP, INC., 1201 WILSON BLVD., ARLINGTON /s/ Gene Boxer, Attorney-in-Fact 23 Feb 2026 0001925960

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 Disposed to Issuer $0 -30,727 -6.4% $0.000000 448,721 19 Feb 2026 Direct F1
transaction CSGP Common Stock, par value $0.01 per share Tax liability $216,938 -4,421 -0.99% $49.07 444,300 19 Feb 2026 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares forfeited from February 14, 2023 performance restricted stock grant upon certification of actual achievement of the performance goal by the Compensation Committee.
F2 On February 19, 2026, the closing price of the Company's Common Stock on Nasdaq was $49.07.