COSTAR GROUP, INC. (CSGP) · Proposed Sale (Form 144) SEC Filing

Insider Proposed Sale Notice

Hill John W

Director·COSTAR GROUP, INC. (CSGP)

Proposed

Common StockNASDAQ

Shares3.50K

Est. DateAug 5

Market Value$106.1K

BrokerAmeritas Investment Corp

AcquisitionPayment for services rendered · Costar

Acquired DateNov 1, 2025

Amount Acquired989

% Outstanding0.0009%

Exercise / Payment Details

Paid: Nov 1, 2025Method: Compensation

No sales in the past 3 months

Signature & Compliance expand_more

Notice DateAug 5, 2026

Signature /s/ Audrey Skillern as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for John W Hill

Issuer Info expand_more

CompanyCOSTAR GROUP, INC.

CIK0001057352

SEC File No.000-24531

Phone2023466500

Address1201 WILSON BLVD., ARLINGTON, VA 22209