COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

LANDMARK INVESTMENT PARTNERS, L.P.'s Holding History (CIK: 0002023551)

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

Q4 2025

Shares 154,480 Value ($000) $10,387 Avg Close $70.84 Range $62.00 - $85.24

Q3 2025

Shares 149,385 Value ($000) $12,604 Avg Close $88.37 Range $79.94 - $97.43

Q2 2025

Shares 276,150 Value ($000) $22,202 Avg Close $77.90 Range $71.21 - $83.68

Q1 2025

Shares 282,966 Value ($000) $22,419 Avg Close $76.08 Range $68.41 - $83.03

Q4 2024

Shares 37,719 Value ($000) $2,700 Avg Close $75.52 Range $68.26 - $82.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	154,480	$10,387	$70.84	$62.00 - $85.24
Q3 2025	149,385	$12,604	$88.37	$79.94 - $97.43
Q2 2025	276,150	$22,202	$77.90	$71.21 - $83.68
Q1 2025	282,966	$22,419	$76.08	$68.41 - $83.03
Q4 2024	37,719	$2,700	$75.52	$68.26 - $82.49