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Joseph Platt Insider Profile
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Joseph Platt, Director at Greenlight Capital Re, holds 229.62K shares in Greenlight Capital Re (Ticker: GLRE), holds 39.04K shares in Core Natural Resources (Ticker: CNR), holds ― shares in CNX Resources (Ticker: CNX). Most recently, Joseph Platt Bought ― shares of Greenlight Capital Re on Nov 19, 2025 for an estimated value of $64.85K.
Profitable Transactions
2 out of 3 Profitable Transactions
Average Return
-3.10%
Average return per transaction
Time Frame
Compare to
Insider Holdings
Insider Roles
Roles that Joseph Platt holds in companies
Most Profitable Insider Trade
The most profitable trade made by Joseph Platt
Joseph Platt's Trading History
Greenlight Capital Re
Nov 19, 2025
Director
Informative Buy
64.85K
$3.14M
CNX Resources
May 11, 2017
Director
Uninformative Buy
―
―
Core Natural Resources
Feb 20, 2025
Director
Uninformative Buy
―
$3.19M
List of latest transactions for each holding click on a transaction to see Joseph Platt's performance on stock
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Joseph Platt insider profile FAQ
What is the percentage of profitable transactions made by Joseph Platt?
The percentage of profitable transactions made by Joseph Platt is 67%.
What is the average return per transaction made by Joseph Platt?
The average return per transaction made by Joseph Platt is -3.10%.
What stocks does Joseph Platt hold?
Joseph Platt holds: GLRE, CNX, CNR stocks.
What was Joseph Platt’s latest transaction?
Joseph Platt latest transaction was an Informative Buy of $64.85K.
What was Joseph Platt's most profitable transaction?
Joseph Platt’s most profitable transaction was an Informative Buy of GLRE stock on November 19, 2025. The return on the trade was 8.70%.
What is Joseph Platt's role in Greenlight Capital Re?
Joseph Platt's role in Greenlight Capital Re is Director.
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