Gene Boxer - 15 Mar 2026 Form 4/A - Amendment Insider Report for COSTAR GROUP, INC. (CSGP)

Role
General Counsel and Secretary
Signature
/s/ Gene Boxer
Issuer symbol
CSGP
Transactions as of
15 Mar 2026
Net transactions value
$0
Form type
4/A - Amendment
Filing time
17 Mar 2026, 17:47:58 UTC
Date Of Original Report
17 Mar 2026
Previous filing
11 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Boxer Gene General Counsel and Secretary C/O COSTAR GROUP, INC., 1201 WILSON BLVD., ARLINGTON /s/ Gene Boxer 17 Mar 2026 0001758152

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 Tax liability -482 -0.5% $43.63* 95,463 15 Mar 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This amount reflects a correction due to administrative error.
F2 On March 13, 2026, the last preceding business day, the closing price of the Company's common stock on Nasdaq was $43.63.