COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

Main Street Financial Solutions, LLC's Holding History (CIK: 0001763350)

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

Q3 2025

Shares 3,974 Value ($000) $335 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 4,378 Value ($000) $352 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 4,386 Value ($000) $348 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 4,430 Value ($000) $317 Avg Close $75.52 Range $68.26 - $82.49

Q3 2024

Shares 4,450 Value ($000) $336 Avg Close $75.84 Range $70.86 - $81.63

Q2 2024

Shares 4,439 Value ($000) $329 Avg Close $84.75 Range $71.90 - $96.98

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	3,974	$335	$88.37	$79.94 - $97.43
Q2 2025	4,378	$352	$77.90	$71.21 - $83.68
Q1 2025	4,386	$348	$76.08	$68.41 - $83.03
Q4 2024	4,430	$317	$75.52	$68.26 - $82.49
Q3 2024	4,450	$336	$75.84	$70.86 - $81.63
Q2 2024	4,439	$329	$84.75	$71.90 - $96.98