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Costar Group CSGP

Costar Group, Inc. · Nasdaq · Services-Business Services, NEC

$27.54-13.96%close on Oct. 28, 2026 · volume 18.3M · Yahoo Finance

Price, last 47 sessions

$27.50$30.00$32.50$35.00Sept. 2026Oct. 2026
Aug. 24, 2026 to Oct. 28, 2026 · high $35.45 · low $26.95 · SEC filing, placed when SEC released it

Our coverage

Nothing published yet.

Insider buying and selling

DateInsiderTradeSharesAvg. priceValue
Aug. 7, 2026Cynthia Cammett Cann
Chief Accounting Officer
Sold4,788$30.78$147,375
Aug. 5, 2026John W. Hill
director
Sold3,500$30.21$105,735
Aug. 4, 2026Andrew C. Florance
Founder and CEO, director
Bought83,300$29.89$2.49 million

Open-market purchases and sales reported on SEC Form 4 filed since July 24, 2026; grants, option exercises and shares withheld for tax aren't shown. A trade under a 10b5-1 plan was scheduled in advance. Where a filing was amended, the amendment's figures are shown.

Recent SEC filings

All 13 →
  • 10-QOct. 28, 2026, 5:11 p.m. ETView on SEC.gov
  • 8-KOct. 27, 2026, 4:05 p.m. ETView on SEC.gov

    Entry into a material definitive agreement · Results of operations and financial condition · Regulation FD disclosure · Financial statements and exhibits

    AI summary, unreviewedCoStar Group Q3 Adjusted EPS of $0.38 Beats $0.34 Consensus and Raises FY2026 Adjusted EPS Guidance to $1.38-$1.41, but Revenue of $952 Million Trails $959.4 Million Consensus; Agrees to Acquire Vexcel for $730 Million in Cash

  • 4Oct. 16, 2026, 5:32 p.m. ETView on SEC.gov
  • 8-KAug. 21, 2026, 4:03 p.m. ETView on SEC.gov

    Regulation FD disclosure · Financial statements and exhibits

  • SCHEDULE 13GAug. 14, 2026, 10:45 a.m. ETView on SEC.gov
  • 4Aug. 10, 2026, 4:06 p.m. ETView on SEC.gov
  • 4Aug. 10, 2026, 4:06 p.m. ETView on SEC.gov
  • 4Aug. 5, 2026, 9:27 a.m. ETView on SEC.gov