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Robert W. Musslewhite currently holds 2,116 shares of COSTAR GROUP, INC. (CSGP), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert W. Musslewhite has been a net seller of CSGP stock. They have purchased $349.0K and sold $23.8M worth of shares.
Robert W. Musslewhite's most recent insider trade was on Nov 5, 2025, when they sold 1,067 shares at $0.00 per share.
Robert W. Musslewhite serves as Executive at COSTAR GROUP, INC. (CSGP). They have executed 238 insider transactions totaling $24.1M over their tenure at the company.
Robert W. Musslewhite holds the position of Executive at COSTAR GROUP, INC., where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 19 years and currently hold a stake valued at $0.
Robert W. Musslewhite has shown a selling trading pattern, with $349.0K in total purchases and $23.8M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by Robert W. Musslewhite was on Apr 10, 2017, when they sold $1.7M worth of ABCO shares. This transaction involved 35,853 shares at $47.50 per share.
Robert W. Musslewhite currently owns 2,116 shares of COSTAR GROUP, INC. (CSGP), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Robert W. Musslewhite's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Robert W. Musslewhite has 238 Form 4 filings on record as an insider at COSTAR GROUP, INC..
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