COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

NORTH STAR ASSET MANAGEMENT INC's Holding History (CIK: 0001056559)

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

Q4 2025

Shares 38,502 Value ($000) $2,589 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 34,939 Value ($000) $2,948 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 34,491 Value ($000) $2,773 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 46,295 Value ($000) $3,668 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 44,462 Value ($000) $3,183 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 42,583 Value ($000) $3,212 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 35,950 Value ($000) $2,665 Avg Close $84.75 Range $71.90 - $96.98

Q1 2024

Shares 10,189 Value ($000) $984 Avg Close $86.08 Range $79.82 - $100.38

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	38,502	$2,589	$70.84	$62.00 - $85.24
Q3 2025	34,939	$2,948	$88.37	$79.94 - $97.43
Q2 2025	34,491	$2,773	$77.90	$71.21 - $83.68
Q1 2025	46,295	$3,668	$76.08	$68.41 - $83.03
Q4 2024	44,462	$3,183	$75.52	$68.26 - $82.49
Q3 2024	42,583	$3,212	$75.84	$70.86 - $81.63
Q2 2024	35,950	$2,665	$84.75	$71.90 - $96.98
Q1 2024	10,189	$984	$86.08	$79.82 - $100.38