John Thero Insider Profile

John Thero, President & CEO, Director at Amarin, holds 3.25M shares in Amarin (Ticker: AMRN), holds 0.00 shares in Chiasma (Ticker: CHMA), holds 22.83K shares in Cyteir Therapeutics (Ticker: CYT).
John Thero

John Thero
Amarin (AMRN)
President & CEO, Director

Ranked #1,373 out of 99,137 Corporate Insiders

Profitable Transactions

5 out of 7 Profitable Transactions

Average Return

Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark

Insider Holdings

A breakdown of John Thero's holdings

Insider Roles

President & CEO, Director
Roles that John Thero holds in companies

Most Profitable Insider Trade

Rating:Informative Buy
Date:Dec 04, 2017 - Dec 04, 2018
The most profitable trade made by John Thero

John Thero's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
Aug 03, 2021
President & CEO, Director
Uninformative Buy
Cyteir Therapeutics
Feb 12, 2024
Informative Buy
Cincor Pharma
List of latest transactions for each holding click on a transaction to see John Thero's performance on stock

John Thero insider profile FAQ

What is the percentage of profitable transactions made by John Thero?
The percentage of profitable transactions made by John Thero is 71%.
    What is the average return per transaction made by John Thero?
    The average return per transaction made by John Thero is 92.30%.
      What stocks does John Thero hold?
      John Thero holds: AMRN, CHMA, CYT, CINC stocks.
        What was John Thero’s latest transaction?
        John Thero latest transaction was an Uninformative Buy of ―.
          What was John Thero's most profitable transaction?
          John Thero’s most profitable transaction was an Informative Buy of AMRN stock on December 4, 2017. The return on the trade was 443.20%.
            What is John Thero's role in Amarin?
            John Thero's role in Amarin is President & CEO, Director.
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