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Robert Musslewhite Insider Profile

4 Followers
Robert Musslewhite, Director at CoStar Group, holds 26.54K shares in CoStar Group (Ticker: CSGP), holds 2.12K shares in Cardinal Health (Ticker: CAH), holds 1.20M shares in Definitive Healthcare Corp (Ticker: DH).
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Robert Musslewhite

Robert Musslewhite
CoStar Group (CSGP)
Director

Ranked #75,409 out of 108,921 Corporate Insiders

Profitable Transactions

0%
0 out of 3 Profitable Transactions

Average Return

-16.50%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$3M
48.91%
31.02%
20.07%
A breakdown of Robert Musslewhite's holdings
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Insider Roles

Definitive Healthcare Corp
(DH)
CEO, Director
CoStar Group
(CSGP)
Director
Cardinal Health
(CAH)
Director
Roles that Robert Musslewhite holds in companies
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Most Profitable Insider Trade

Stock:
The Advisory Board
(ABCO)
Rating:Informative Buy
Date:Sep 03, 2015 - Sep 03, 2016
Return:-12.70%
The most profitable trade made by Robert Musslewhite
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Robert Musslewhite's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
CSGP
CoStar Group
Jun 24, 2026
Director
Uninformative Buy
―
$785.02K
DH
Definitive Healthcare Corp
Jan 09, 2024
CEO, Director
Uninformative Sell
127.86K
$1.24M
CAH
Cardinal Health
Nov 06, 2025
Director
Uninformative Buy
―
$507.84K
ABCO
The Advisory Board
Nov 21, 2017
―
Uninformative Sell
―
$0.00
List of latest transactions for each holding click on a transaction to see Robert Musslewhite's performance on stock
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Robert Musslewhite insider profile FAQ

What is the percentage of profitable transactions made by Robert Musslewhite?
The percentage of profitable transactions made by Robert Musslewhite is 0%.
    What is the average return per transaction made by Robert Musslewhite?
    The average return per transaction made by Robert Musslewhite is -16.50%.
      What stocks does Robert Musslewhite hold?
      Robert Musslewhite holds: CSGP, DH, CAH, ABCO stocks.
        What was Robert Musslewhite’s latest transaction?
        Robert Musslewhite latest transaction was an Uninformative Buy of ―.
          What was Robert Musslewhite's most profitable transaction?
          Robert Musslewhite’s most profitable transaction was an Informative Buy of ABCO stock on September 3, 2015. The return on the trade was -12.70%.
            What is Robert Musslewhite's role in CoStar Group?
            Robert Musslewhite's role in CoStar Group is Director.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.