Robert W. Musslewhite
Director · COSTAR GROUP, INC.
Individual
- 2025
- Jun 25, 2026
- 3
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Robert W. Musslewhite files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Jason M. Hollar - $29.38M in CAH purchases and sales in the last 12 months
- Aaron E. Alt - $10.45M in CAH purchases and sales in the last 12 months
- Stephen M. Mason - $8.27M in CAH purchases and sales in the last 12 months
- Andrew C. Florance - $7.48M in CSGP purchases and sales in the last 12 months
- Jessica L. Mayer - $6.95M in CAH purchases and sales in the last 12 months
- Michelle D. Greene - $3.37M in CAH purchases and sales in the last 12 months
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Frequently asked questions
Who is Robert W. Musslewhite?
Robert W. Musslewhite is a corporate insider, tracked as Director of COSTAR GROUP, INC. (CSGP). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Robert W. Musslewhite last file a Form 4?
The most recent primary Form 4 on record is dated 25 June 2026, one of 3 filings going back to 2025.
