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Grigorios Siokas Insider Profile

18 Followers
Grigorios Siokas, CEO, Director, Ten Percent Owner at Cosmos Holdings, holds 13.26M shares in Cosmos Holdings (Ticker: COSM). Most recently, Grigorios Siokas Bought 701,447 shares of Cosmos Holdings on Jun 12, 2026 for an estimated value of $154.32K.
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Grigorios Siokas

Grigorios Siokas
Cosmos Holdings (COSM)
CEO, Director, Ten Percent Owner

Ranked #105,610 out of 107,911 Corporate Insiders

Profitable Transactions

11%
7 out of 66 Profitable Transactions

Average Return

-40.00%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$3M
100.00%
A breakdown of Grigorios Siokas's holdings
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Insider Roles

Cosmos Holdings
(COSM)
CEO, Director, Ten Percent Owner
Roles that Grigorios Siokas holds in companies
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Most Profitable Insider Trade

Stock:
Cosmos Holdings
(COSM)
Rating:Informative Buy
Date:May 28, 2019 - May 28, 2020
Return:+32.10%
The most profitable trade made by Grigorios Siokas
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Grigorios Siokas's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
COSM
Cosmos Holdings
Jun 12, 2026
CEO, Director, Ten Percent Owner
Informative Buy
154.32K
$2.81M
Success Rate for
COSM
7 out of 66 profitable transactions on
COSM
11%
Average Return for
COSM
Average return per transaction on
COSM
-40.06%
Date
Transaction
Amount
No. of Shares
Price per Share
Profit
Link to Report
Jun 26, 2019
Informative Buy
$550.00K
73,334
$7.50
-23.70%
May 28, 2019
Informative Buy
$500.00K
66,667
$7.50
+32.10%
Jun 25, 2021
Informative Buy
$3.00M
500,000
$6.00
-23.50%
Jul 14, 2021
Informative Buy
$1.00M
166,667
$6.00
-9.80%
Jul 21, 2021
Informative Buy
$1.25M
208,333
$6.00
-4.60%
List of latest transactions for each holding click on a transaction to see Grigorios Siokas's performance on stock
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Grigorios Siokas insider profile FAQ

What is the percentage of profitable transactions made by Grigorios Siokas?
The percentage of profitable transactions made by Grigorios Siokas is 11%.
    What is the average return per transaction made by Grigorios Siokas?
    The average return per transaction made by Grigorios Siokas is -40.00%.
      What stocks does Grigorios Siokas hold?
      Grigorios Siokas holds: COSM stocks.
        What was Grigorios Siokas’s latest transaction?
        Grigorios Siokas latest transaction was an Informative Buy of $154.32K.
          What was Grigorios Siokas's most profitable transaction?
          Grigorios Siokas’s most profitable transaction was an Informative Buy of COSM stock on May 28, 2019. The return on the trade was 32.10%.
            What is Grigorios Siokas's role in Cosmos Holdings?
            Grigorios Siokas's role in Cosmos Holdings is CEO, Director, Ten Percent Owner.
              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.