CoStar Group (CSGP) insider trading

By person

18 insiders · 0 transactions

55.5×

Andrew C. Florance holds 55.5 times base salary in stock. $55.59M of shares against $1.00M in salary for 2025.

Salary from the company's own proxy. The shares are what Andrew C. Florance last reported holding, valued at $30.78, the price Common Stock, par value $0.01 per share was last bought or sold at on the open market here, on 7 Aug 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Michael R Klein

Director

—

1,848,592

0.4562%

$56.90M

−3.4%

Andrew C Florance

Founder and CEO

—

1,806,165

0.4457%

$55.59M

+43.0%

Frank Simuro

Chief Technology Officer

—

414,491

0.1023%

$12.76M

+6.1%

Frederick G. Saint

President, Marketplaces

—

278,415

0.0687%

$8.57M

−5.8%

Christopher J Nassetta

Director

—

229,715

0.0567%

$7.07M

−0.7%

Lisa Ruggles

Senior VP, Global Operations

—

174,915

0.0432%

$5.38M

+1.3%

Christian M. Lown

Chief Financial Officer

—

129,653

0.0320%

$3.99M

+248.3%

Gene Boxer

General Counsel and Secretary

—

95,517

0.0236%

$2.94M

+120.6%

Michael J Desmarais

Chief Human Resources Officer

—

87,725

0.0216%

$2.70M

+36.1%

Robin Jack Rossmann

Chief Financial Officer

—

85,935

0.0212%

$2.65M

−0.9%

Louise S Sams

Director

—

28,671

0.0071%

$882.49K

+77.9%

Robert W Musslewhite

Director

—

26,539

0.0065%

$816.87K

+75.1%

John W Hill

Director

—

22,993

0.0057%

$707.72K

+13.6%

Cynthia Cammett Cann

Chief Accounting Officer

—

18,822

0.0046%

$579.34K

−32.6%

Angelique G. Brunner

Director

—

18,428

0.0045%

$567.21K

+162.4%

Rachel C Glaser

Director

—

12,419

0.0031%

$382.26K

+88,607%

Christine M McCarthy

Director

—

11,585

0.0029%

$356.59K

+3,210%

John L Berisford

Director

—

11,235

0.0028%

$345.81K

—

CoStar Group

What the insiders did No buying or selling

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