InsiderTrades

Form 4 for CSGP CoStar Group

Accepted 2026-03-17 00:00:00 ET · period of report 2026-03-15 · accession 0001925959-26-000006 · 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
2026-03-17 2026-03-15 CSGP DESMARAIS MICHAEL J CHRO F - Tax $43.63 -2,873 87.7K -3% -$125.3K

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 2026-03-15 F D 2,873 $43.63 87,725 D — — (F1) On March 13, 2026, the last preceding business day, the closing price of the Company's common stock on Nasdaq was $43.63.