COSTAR GROUP, INC.·4

Mar 2, 4:00 PM ET

FLORANCE ANDREW C 4

Research Summary

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CoStar CEO Andrew C. Florance Buys 55,720 Shares

What Happened
Andrew C. Florance, President, CEO and a director of CoStar Group, Inc. (CSGP), made an open-market purchase of 55,720 shares on 2026-02-27 at an average price of $44.52 per share, for a total reported cost of roughly $2,480,654. This transaction is a purchase (code P), which many investors view as a more directly bullish signal than routine sales.

Key Details

  • Transaction date: 2026-02-27; Filing date: 2026-03-02 (filed within the standard 2-business-day window).
  • Price reported: $44.52 per share (total ≈ $2,480,654).
  • Footnote F1: "Average based on sales prices ranging from $44.08 to $44.74." (Included in the filing.)
  • Shares owned after the transaction: not specified in the provided filing excerpt.
  • Transaction type: Open-market purchase (code P).

Context
Insider purchases like this are factual disclosures of the CEO increasing his stake; they do not prove future company performance but are often watched by retail investors as a sign of confidence. No option exercises, gifts, or tax-withholding details were reported in this filing.