CSGP

CSGP · CoStar Group Inc. Common Stock

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October 4, 2026

CoStar Group Announces Q3 Earnings Date and Industry Highlights. CoStar Group said it will report Q3 results on Oct. 27. The company’s data platform remains key for Canadian commercial brokers and the latest rent‑growth and logistics rankings highlight its market reach. Analysts note the stock trades near its 52‑week low and that valuation concerns may influence sentiment. The upcoming earnings release could clarify the company’s performance outlook.

this person other insiders at CSGP

Insiders & Stakes

KLEIN MICHAEL R
Director
1,848,592
Shares held
Andrew C. Florance
President and CEO
1,806,165
Shares held
Frank Simuro
Chief Technology Officer
414,491
Shares held
Wheeler Scott T
Chief Financial Officer
303,417
Shares held
Frederick G. Saint
President, Marketplaces
278,415
Shares held
NASSETTA CHRISTOPHER J
Director
229,715
Shares held
Lisa Ruggles
Senior VP, Global Research
174,915
Shares held
Christian M. Lown
Chief Financial Officer
129,653
Shares held
Glosserman Michael J
Director
101,465
Shares held
Gene Boxer
General Counsel and Secretary
95,517
Shares held
Michael J. Desmarais
Chief Human Resources Officer
87,725
Shares held
Louise S. Sams
Director
28,671
Shares held
Robert W. Musslewhite
Director
26,539
Shares held
John W. Hill
Director
22,993
Shares held
Cynthia Cammett Cann
Chief Accounting Officer
18,822
Shares held
Angelique G. Brunner
Director
18,428
Shares held
Kaplan Laura Cox
Director
17,835
Shares held
Rachel C. Glaser
Chief Financial Officer
12,419
Shares held
Christine M. McCarthy
Director
11,585
Shares held
John L. Berisford
Director
11,235
Shares held

Transaction History

Cynthia Cammett Cann▼ Sell$147K
John W. Hill▼ Sell$106K
Andrew C. Florance▲ Buy$2.5M
Cynthia Cammett Cann▼ Sell$31K
Frederick G. Saint▼ Sell$41K
Christian M. Lown▼ Sell$164K
Rachel C. Glaser▲ Buy$0
John L. Berisford▲ Buy$0
John W. Hill▲ Buy$0
Angelique G. Brunner▲ Buy$0
Robert W. Musslewhite▲ Buy$0
Louise S. Sams▲ Buy$0
Christine M. McCarthy▲ Buy$0
Cynthia Cammett Cann▼ Sell$15K
Andrew C. Florance▲ Buy$2.4M
Andrew C. Florance▲ Buy$111K
Lisa Ruggles▼ Sell$130K
Gene Boxer▼ Sell$19K
Frank Simuro▼ Sell$485K
Michael J. Desmarais▼ Sell$125K
Cynthia Cammett Cann▼ Sell$52K
Andrew C. Florance▲ Buy—
Christian M. Lown▲ Buy—
Gene Boxer▲ Buy—
Michael J. Desmarais▲ Buy—
Cynthia Cammett Cann▲ Buy—
Louise S. Sams▲ Buy$48K
Rachel C. Glaser▲ Buy$45K
Frederick G. Saint▲ Buy$907K
Christian M. Lown▼ Sell$320K
Andrew C. Florance▼ Sell$2.7M
Gene Boxer▼ Sell$203K
Michael J. Desmarais▼ Sell$284K
Cynthia Cammett Cann▼ Sell$62K
Lisa Ruggles▼ Sell$399K
Frank Simuro▼ Sell$835K
Frederick G. Saint▼ Sell$495K
Andrew C. Florance▲ Buy$2.5M
Frank Simuro▼ Sell$0
Frank Simuro▼ Sell$217K
Frederick G. Saint▼ Sell$0
Frederick G. Saint▼ Sell$105K
Andrew C. Florance▼ Sell$0
Andrew C. Florance▼ Sell$943K
Lisa Ruggles▼ Sell$0
Lisa Ruggles▼ Sell$158K
Frank Simuro▼ Sell$187K
Andrew C. Florance▼ Sell$787K
Lisa Ruggles▼ Sell$161K
Frederick G. Saint▼ Sell$109K
Cynthia Cammett Cann▼ Sell$127K
John W. Hill▼ Sell$155K
John L. Berisford▲ Buy$0
John W. Hill▲ Buy$0
Robert W. Musslewhite▲ Buy$0
Louise S. Sams▲ Buy$0
Christine M. McCarthy▲ Buy$0
Rachel C. Glaser▲ Buy$0
Angelique G. Brunner▲ Buy$0
Frederick G. Saint▼ Sell$2.3M
Cynthia Cammett Cann▼ Sell$68K
Frederick G. Saint▼ Sell$137K
Frederick G. Saint▼ Sell$2.3M
Cynthia Cammett Cann▼ Sell$189K
Christian M. Lown▼ Sell$375K
Cynthia Cammett Cann▼ Sell$37K
Frederick G. Saint▼ Sell$2.0M
Lisa Ruggles▼ Sell$883
Frank Simuro▼ Sell$449K
Gene Boxer▼ Sell$38K
Michael J. Desmarais▼ Sell$287K
Lisa Ruggles▼ Sell$154K
Cynthia Cammett Cann▼ Sell$94K
Cynthia Cammett Cann▼ Sell$140K
Cynthia Cammett Cann▲ Buy—
Gene Boxer▲ Buy—
Andrew C. Florance▲ Buy—
Michael J. Desmarais▲ Buy—
Lisa Ruggles▼ Sell$565K
Michael J. Desmarais▼ Sell$297K
Frederick G. Saint▼ Sell$629K
Cynthia Cammett Cann▼ Sell$62K
Gene Boxer▼ Sell$278K
Andrew C. Florance▼ Sell$3.1M
Frank Simuro▼ Sell$948K
Michael J. Desmarais▲ Buy$0
Cynthia Cammett Cann▲ Buy$0
Gene Boxer▲ Buy$0
Frederick G. Saint▲ Buy$0
Frank Simuro▲ Buy$0
Christian M. Lown▲ Buy$0
Andrew C. Florance▲ Buy$0
Lisa Ruggles▲ Buy$0
Frank Simuro▼ Sell$406K
Lisa Ruggles▼ Sell$262K
Andrew C. Florance▼ Sell$1.1M
Frederick G. Saint▼ Sell$174K
Frank Simuro▼ Sell$0
Frederick G. Saint▼ Sell$484K
Frank Simuro▼ Sell$548K
Frederick G. Saint▼ Sell$0
Andrew C. Florance▼ Sell$0
Andrew C. Florance▼ Sell$2.5M
Lisa Ruggles▼ Sell$0
Lisa Ruggles▼ Sell$548K
John W. Hill▼ Sell$210K
John W. Hill▼ Sell$0
KLEIN MICHAEL R▼ Sell$0
NASSETTA CHRISTOPHER J▼ Sell$135K
Michael J. Desmarais▼ Sell$439K
Cynthia Cammett Cann▼ Sell$101K
Andrew C. Florance▲ Buy$1.1M
KLEIN MICHAEL R▼ Sell$5.4M
KLEIN MICHAEL R▼ Sell$0
Cynthia Cammett Cann▼ Sell$94K
John W. Hill▼ Sell$104K
KLEIN MICHAEL R▼ Sell$0
KLEIN MICHAEL R▼ Sell$0
KLEIN MICHAEL R▼ Sell$0
Cynthia Cammett Cann▲ Buy$0
Frederick G. Saint▲ Buy$0
Louise S. Sams▲ Buy$0
Robert W. Musslewhite▲ Buy$0
KLEIN MICHAEL R▲ Buy$0
Angelique G. Brunner▲ Buy$0
NASSETTA CHRISTOPHER J▲ Buy$0
Kaplan Laura Cox▲ Buy$0
John W. Hill▲ Buy$0
Christian M. Lown▲ Buy$0
Lisa Ruggles▼ Sell$860
Frederick G. Saint▼ Sell$221K
Lisa Ruggles▼ Sell$1.8M
NASSETTA CHRISTOPHER J▼ Sell$0
NASSETTA CHRISTOPHER J▼ Sell$0
Wheeler Scott T▼ Sell$11.4M
Wheeler Scott T▲ Buy$1.7M
Wheeler Scott T▲ Buy$1.5M
Wheeler Scott T▲ Buy$3.4M
Michael J. Desmarais▼ Sell$352K
Wheeler Scott T▲ Buy$548K
Michael J. Desmarais▼ Sell$199K
Frank Simuro▼ Sell$451K
Wheeler Scott T▼ Sell$742K
Lisa Ruggles▼ Sell$59K
Gene Boxer▼ Sell$33K
Wheeler Scott T▼ Sell$0
Wheeler Scott T▼ Sell$0
Wheeler Scott T▼ Sell$0
Wheeler Scott T▼ Sell$0
Andrew C. Florance▼ Sell$2.1M
Frederick G. Saint▼ Sell$553K
Frank Simuro▼ Sell$530K
Wheeler Scott T▲ Buy—
Wheeler Scott T▼ Sell$881K
Gene Boxer▲ Buy—
Gene Boxer▼ Sell$108K
Michael J. Desmarais▲ Buy—
Michael J. Desmarais▼ Sell$159K
Lisa Ruggles▼ Sell$530K
Frank Simuro▼ Sell$0
Frank Simuro▼ Sell$380K
Frank Simuro▲ Buy$0
Frederick G. Saint▼ Sell$0
Frederick G. Saint▼ Sell$410K
Frederick G. Saint▲ Buy$0
Wheeler Scott T▼ Sell$0
Wheeler Scott T▼ Sell$449K
Michael J. Desmarais▲ Buy$0
Lisa Ruggles▼ Sell$0
Lisa Ruggles▼ Sell$372K
Lisa Ruggles▲ Buy$0
Gene Boxer▲ Buy$0
Andrew C. Florance▼ Sell$0
Andrew C. Florance▼ Sell$1.9M
Andrew C. Florance▲ Buy$0
Wheeler Scott T▼ Sell$285K
Frederick G. Saint▼ Sell$193K
Andrew C. Florance▼ Sell$1.3M
Frank Simuro▼ Sell$348K
Lisa Ruggles▼ Sell$195K
KLEIN MICHAEL R▼ Sell$0
John W. Hill▼ Sell$254K
NASSETTA CHRISTOPHER J▼ Sell$117K
John W. Hill▲ Buy$0
Angelique G. Brunner▲ Buy$0
Kaplan Laura Cox▲ Buy$0
Louise S. Sams▲ Buy$0
NASSETTA CHRISTOPHER J▲ Buy$0
Robert W. Musslewhite▲ Buy$0
Glosserman Michael J▲ Buy$0
KLEIN MICHAEL R▲ Buy$0
Michael J. Desmarais▼ Sell$128K
Lisa Ruggles▼ Sell$2.8M
Wheeler Scott T▼ Sell$1.9M
Frank Simuro▼ Sell$8.3M
John W. Hill▼ Sell$130K
Wheeler Scott T▼ Sell$2.0M
Frederick G. Saint▼ Sell$2.4M
Lisa Ruggles▼ Sell$873
KLEIN MICHAEL R▼ Sell$0

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