COSTAR GROUP, INC.·4

Mar 9, 8:00 AM ET

Sams Louise S 4

4 · COSTAR GROUP, INC. · Filed Mar 9, 2026

Research Summary

AI-generated summary of this filing

Updated

CoStar Group (CSGP) Director Louise Sams Buys 1,000 Shares

What Happened

Director Louise S. Sams purchased 1,000 shares of CoStar Group (CSGP) in an open-market transaction on March 6, 2026. The shares were acquired at $48.36 each for a total cost of $48,360. This was a purchase (insider buy), which some investors view as a more informative signal than routine sales.

Key Details

  • Transaction date and price: 2026-03-06, 1,000 shares at $48.36 per share (total $48,360).
  • Transaction type/code: Open-market purchase (Code P = Purchase).
  • Shares owned after transaction: Not specified in this Form 4 filing.
  • Filing: Report filed 2026-03-09 (timely under Form 4 reporting rules).
  • Remarks/footnotes: Exhibit 24 (Power of Attorney) is attached; no 10b5-1 plan or other special instructions disclosed.

Context

  • Insider purchases can be interpreted as a positive indicator, but a single small-to-midsize buy (~$48k) should be considered alongside other insider activity and company fundamentals.
  • No option exercises, gifts, or immediate sales tied to this transaction were reported.

Insider Transaction Report

Form 4
Period: 2026-03-06
Transactions
  • Purchase

    Common Stock, par value $0.01 per share

    2026-03-06$48.36/sh+1,000$48,36020,409 total
Signature
/s/ Gene Boxer, Attorney-in-Fact|2026-03-09

Documents

4 files
  • 4
    wk-form4_1773057605.xmlPrimary

    FORM 4

  • EX-24
  • GRAPHIC
    exhibit24sams001.jpg
  • GRAPHIC
    exhibit24sams002.jpg