About

Robert Musslewhite has served as an independent director of CoStar Group since 2019 and chairs the Compensation Committee. He was Chief Executive Officer of Definitive Healthcare and previously served as Chief Executive Officer of OptumInsight and as Chairman and Chief Executive Officer of The Advisory Board Company.

Roles

Costar Group, Inc.
Independent Director · Current role
2019–present

External Roles

Definitive Healthcare Corp.
Chief Executive Officer
2022-2024
Optum
Chief Executive Officer, OptumInsight
2019-2021
Optum
Chief Executive Officer, Optum360
—
The Advisory Board Company
Chairman and Chief Executive Officer
2013-2017
McKinsey and Company
Associate Principal
2001-2008
Cardinal Health Inc
Director
—
Definitive Healthcare Corp.
Director
2021-2024

Director Compensation

FY 2025
Fees earned or paid in cash
$50,000
Stock awards
$275,000
Total
$325,000

Also at Costar Group, Inc.

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