COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

DRW Securities, LLC's Holding History (CIK: 0001481986)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 5,672 Value ($000) $381 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 12,850 Value ($000) $1,085 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 3,823 Value ($000) $307 Avg Close $77.90 Range $71.21 - $83.68

Q3 2023

Shares 5,987 Value ($000) $0 Avg Close $82.85 Range $75.78 - $92.30

Q2 2020

Shares 283 Value ($000) $201 Avg Close $64.65 Range $52.02 - $74.71

Q3 2019

Shares 694 Value ($000) $412 Avg Close $59.86 Range $55.57 - $63.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,672	$381	$70.84	$62.00 - $85.24
Q3 2025	12,850	$1,085	$88.37	$79.94 - $97.43
Q2 2025	3,823	$307	$77.90	$71.21 - $83.68
Q3 2023	5,987	$0	$82.85	$75.78 - $92.30
Q2 2020	283	$201	$64.65	$52.02 - $74.71
Q3 2019	694	$412	$59.86	$55.57 - $63.94