COSTAR GROUP INC (CSGP)
Sector: Real Estate
| Ticker | Position | Age | Qualifications and Experience | Committee Memberships | Filing Year |
|---|---|---|---|---|---|
Sector: Real Estate
| Ticker | Position | Age | Qualifications and Experience | Committee Memberships | Filing Year |
|---|---|---|---|---|---|
Director information for CSGP
| Ticker | Position | Age | Qualifications and Experience | Committee Memberships | Filing Year |
|---|---|---|---|---|---|
| CSGP | Former Chief Executive Officer, Definitive Healthcare Corp; Chair; Director | 56 | ["Experienced public company chief executive with track record in subscription-based and analytics-driven businesses.","Expertise in capital allocation and enterprise risk oversight.","Led global go-to-market initiatives and sustained revenue growth.","Oversaw complex, data-intensive businesses operating in regulated environments."] | ["COMPENSATION COMMITTEE","Compensation (Chair)"] | 2026 |
Companies shown below are based on exact name match for the selected Director
| Ticker | Position | Age | Qualifications and Experience | Committee Memberships | Filing Year |
|---|---|---|---|---|---|
| CAH | Former CEO, Definitive Healthcare Corp.; Director | 55 | ["Former CEO, Definitive Healthcare Corp.", "over two decades of executive leadership experience across healthcare technology, data analytics, and strategic consulting", "senior roles in corporate strategy, product scaling, and operational leadership", "CEO of Definitive Healthcare", "held multiple CEO roles within UnitedHealth Group\u2019s Optum division", "Chairman and CEO of The Advisory Board Company", "extensive leadership and board experience in healthcare innovation, data-driven strategy, public company governance, finance, human capital management, and regulatory compliance"] | ["Compensation Committee", "Capital Allocation Committee"] | 2025 |
Biography sourced from the proxy statement filing.
INDEPENDENT DIRECTOR Director Since: 2019 Age: 56 Committee: Compensation (Chair) Other Public Company Directorships (past five years): Cardinal Health Inc (NYSE: CAH) (since 2025) Definitive Healthcare Corp. (Nasdaq: DH) (2021-2024) Education: B.A., Economics, Princeton University J.D., Harvard Law School REASONS FOR NOMINATION Robert Musslewhite is an experienced public company chief executive with a strong track record of leading subscription-based and analytics-driven businesses. He has scaled SaaS and analytics platforms, executed strategic transactions, and integrated technology-enabled businesses in highly competitive markets. His expertise in capital allocation and enterprise risk oversight provides valuable perspective as CoStar Group continues to scale its global digital real estate ecosystem and expand its data, analytics, and AI capabilities. KEY SKILLS AND QUALIFICATIONS Marketing and Sales : Mr. Musslewhite has extensive experience leading commercial organizations and driving sustained revenue growth in subscription-based businesses. As Chief Executive Officer of Definitive Healthcare, he directed global go-to-market initiatives, sharpened market positioning, and expanded recurring revenue through focused customer acquisition and account development strategies. At The Advisory Board Company, he accelerated top-line growth from approximately $200 million to $800 million by scaling a research, analytics, and technology-enabled services model and broadening the company s client base. Business Development and M&A: As Chief Executive Officer of OptumInsight, Optum s $19 billion publicly reported business unit, Mr. Musslewhite led numerous health care technology and services acquisitions, most notably the $13 billion acquisition of Change Healthcare. As Chief Executive Officer of The Advisory Board Company, Mr. Musslewhite evaluated strategic alternatives and led significant transactions, including the $1.3 billion sale of its healthcare business to Optum and the $1.5 billion sale of its education business to Vista Equity Partners. He also led the founding of Evolent Health within the Advisory Board, ultimately launching its IPO into a public company (EVH). Risk Management: Across senior leadership roles at Definitive Healthcare, OptumInsight, and The Advisory Board Company, Mr. Musslewhite oversaw complex, data-intensive businesses operating in highly regulated environments. He managed operational, technology, data privacy, and strategic risks while scaling SaaS-oriented and service-based platforms. CAREER HIGHLIGHTS Definitive Healthcare Corp. (Nasdaq: DH) a healthcare data and analytics company Chief Executive Officer (2022-2024) President (2021-2022) Optum a health services and technology division of UnitedHealth Group Chief Executive Officer, OptumInsight (2019-2021) Chief Executive Officer, Optum360 (2019) Various other Chief Executive positions (2017-2019) The Advisory Board Company (former Nasdaq: ABCO, acquired by Optum in 2017) a healthcare research, consulting, and technology firm Chairman and Chief Executive Officer (2013-2017) Chief Executive Officer (2008-2017) McKinsey and Company a premier global management consulting firm Associate Principal (2001-2008)