COSTAR GROUP INC

Ticker: CSGP CUSIP: 22160N109 Class: EQTY

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

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

Q4 2025
Shares 151,000 Value ($000) $10,153 Avg Close $70.84 Range $62.00 - $85.24
Q3 2025
Shares 98,000 Value ($000) $8,268 Avg Close $88.37 Range $79.94 - $97.43
Q2 2025
Shares 88,000 Value ($000) $7,075 Avg Close $77.90 Range $71.21 - $83.68
Q1 2025
Shares 56,500 Value ($000) $4,476 Avg Close $76.08 Range $68.41 - $83.03