COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

Aureus Asset Management, LLC's Holding History (CIK: 0001381296)

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

Q4 2025

Shares 337,117 Value ($000) $22,668 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 339,077 Value ($000) $28,608 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 253,729 Value ($000) $20,400 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 260,224 Value ($000) $20,618 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 249,536 Value ($000) $17,864 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 279,807 Value ($000) $21,109 Avg Close $75.84 Range $70.86 - $81.63

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	337,117	$22,668	$70.84	$62.00 - $85.24
Q3 2025	339,077	$28,608	$88.37	$79.94 - $97.43
Q2 2025	253,729	$20,400	$77.90	$71.21 - $83.68
Q1 2025	260,224	$20,618	$76.08	$68.41 - $83.03
Q4 2024	249,536	$17,864	$75.52	$68.26 - $82.49
Q3 2024	279,807	$21,109	$75.84	$70.86 - $81.63