InsiderTrades

Form 4 for CSGP CoStar Group

Accepted 2026-02-23 00:00:00 ET · period of report 2026-02-19 · accession 0001066061-26-000004 · 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
2026-02-23 2026-02-19 CSGP FLORANCE ANDREW C Pres, CEO, Dir D - Sale to Iss $0.00 -105.0K 1.55M -6% $0
2026-02-23 2026-02-19 CSGP FLORANCE ANDREW C Pres, CEO, Dir F - Tax $49.07 -19.2K 1.53M -1% -$943.2K

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 2026-02-19 D D 104,983 $0.00 1,550,367.03 D — — (F1) Shares forfeited from February 14, 2023 performance restricted stock grant upon certification of actual achievement of the performance goal by the Compensation Committee.
2 Common Common Stock, par value $0.01 per share 2026-02-19 F D 19,221 $49.07 1,531,146.03 D — — (F2) On February 19, 2026, the closing price of the Company's Common Stock on Nasdaq was $49.07.