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John Colin Harrington Insider Profile
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John Colin Harrington, Chief Executive Officer at Zephyr Energy, holds 179.93M shares in Zephyr Energy (Ticker: GB:ZPHR). Most recently, John Colin Harrington Bought 19,517,284p shares of Zephyr Energy on Jun 30, 2025 for an estimated value of 585.52K.
John Colin Harrington Zephyr Energy (ZPHR)Chief Executive Officer
Zephyr Energy (ZPHR)
Chief Executive Officer
Ranked #1,333 out of 102,674 Corporate Insiders
Profitable Transactions
2 out of 4 Profitable Transactions
Average Return
+228.20%
Average return per transaction
Time Frame
Compare to
Insider Holdings
100.00%
A breakdown of John Colin Harrington's holdings
Insider Roles
Chief Executive Officer
Roles that John Colin Harrington holds in companies
Most Profitable Insider Trade
The most profitable trade made by John Colin Harrington
John Colin Harrington's Trading History
List of latest transactions for each holding click on a transaction to see John Colin Harrington's performance on stock
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John Colin Harrington insider profile FAQ
What is the percentage of profitable transactions made by John Colin Harrington?
The percentage of profitable transactions made by John Colin Harrington is 50%.
What is the average return per transaction made by John Colin Harrington?
The average return per transaction made by John Colin Harrington is 228.20%.
What stocks does John Colin Harrington hold?
John Colin Harrington holds: GB:ZPHR stocks.
What was John Colin Harrington’s latest transaction?
John Colin Harrington latest transaction was an Informative Buy of 585.52K.
What was John Colin Harrington's most profitable transaction?
John Colin Harrington’s most profitable transaction was an Informative Buy of GB:ZPHR stock on October 16, 2020. The return on the trade was 800.00%.
What is John Colin Harrington's role in Zephyr Energy?
John Colin Harrington's role in Zephyr Energy is Chief Executive Officer.
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