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CSGP insider trading

CoStar Group, Inc. · end-of-day data as of Oct 16, 2026

CoStar Group, Inc.
CSGP · $13.09B
$32.31+16.8%last 60 sessions · close Oct 16, 2026
$26.95$78.2352 weeks
Buy · 21 analystsPT $43.35 +34.2%
  • P/E vs own-89.8%
  • P/E vs sector+476.6%
  • Target upside+34.2%
  • Off 52w high-58.7%
  • Insiders$2.24M
  • FCF yield+2.4%
  • Earnings in11d
  • Trendsideways
  • Sector→ -7.8%
  • RSI68
  • MA20×50—
  • Volume1.0x
  • Support-1.4%
  • Resistance+5.2%

In the last 12 months CSGP insiders made 6 open-market purchases worth $8.48M and 4 sales worth $534K, as reported on SEC Form 4. The latest: Cann Cynthia Cammett (officer: Chief Accounting Officer) sold 4,788 shares at $30.78 on Aug 7, 2026.

Last 90 days

  • Insiders$2.24M

Transactions

Open-market buys $8.48M · sells $534K over the last 365 days (6 buys, 4 sells).

Oct 15, 2026Rossmann Robin Jack
officer: Chief Financial Officer
Other756$32.00$24.19K
Aug 7, 2026Cann Cynthia Cammett
officer: Chief Accounting Officer
Sell4,788$30.78$147K
Aug 5, 2026Hill John W
director
Sell3,500$30.21$106K
Aug 4, 2026FLORANCE ANDREW C
director, officer: Founder and CEO
Buy83,300$29.89$2.49M
Aug 1, 2026Cann Cynthia Cammett
officer: Chief Accounting Officer
Other1,077$28.76$30.97K
Aug 1, 2026SAINT FREDERICK G.
officer: President, Marketplaces
Other1,436$28.76$41.3K
Jul 31, 2026Cann Cynthia Cammett
officer: Chief Accounting Officer
Other26,078——
Jul 31, 2026Rossmann Robin Jack
officer: Chief Financial Officer
Other44,994——
Jul 1, 2026LOWN CHRISTIAN M.
officer: Chief Financial Officer
Other5,597$29.36$164K
Jun 23, 2026BERISFORD JOHN L
director
Other8,262——
Jun 23, 2026Brunner Angelique G.
director
Other8,262——
Jun 23, 2026Glaser Rachel C
director
Other8,262——
Jun 23, 2026Hill John W
director
Other8,262——
Jun 23, 2026McCarthy Christine M
director
Other8,262——
Jun 23, 2026Musslewhite Robert W
director
Other8,262——
Jun 23, 2026Sams Louise S
director
Other8,262——
Jun 15, 2026Cann Cynthia Cammett
officer: Chief Accounting Officer
Other461$32.04$14.77K
May 1, 2026FLORANCE ANDREW C
director, officer: President and CEO
Buy71,430$35.20$2.51M
Mar 15, 2026Banerjee Nana
director:
Other0——
Mar 15, 2026Boxer Gene
officer: General Counsel and Secretary
Other428$43.63$18.67K

Source: SEC Form 4 filings. "Other" covers awards, option exercises and gifts.