InsiderTrades

Form 4 for CSGP CoStar Group

Accepted 2026-03-03 00:00:00 ET · period of report 2026-03-01 · accession 0001500076-26-000006 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2026-03-03 2026-03-02 CSGP SAINT FREDERICK G. Pres, Marketplaces P - Purchase $45.33 +20.0K 279.9K +8% +$906.6K
2026-03-03 2026-03-01 CSGP SAINT FREDERICK G. Pres, Marketplaces F - Tax $44.63 -11.1K 259.9K -4% -$495.2K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock, par value $0.01 per share 2026-03-02 P A 20,000 $45.33 279,851 D — — (F2) Average based on sales prices ranging from $45.26 to $45.38
2 Common Common Stock, par value $0.01 per share 2026-03-01 F D 11,096 $44.63 259,851 D — — (F1) On February 27, 2026, the last preceding business day, the closing price of the Company's common stock on Nasdaq was $44.63.