Education
About Us
Working with TipRanks
Follow Us
Marcio Bastos Fonseca Insider Profile
4 Followers
Marcio Bastos Fonseca, President & Chief Executive Officer at GR Silver Mining, holds 8.32M shares in GR Silver Mining (Ticker: GRSLF). Most recently, Marcio Bastos Fonseca Bought 30,700 shares of GR Silver Mining on Dec 19, 2025 for an estimated value of $9.21K.
Marcio Bastos Fonseca GR Silver Mining (GRSLF)President & Chief Executive Officer
GR Silver Mining (GRSLF)
President & Chief Executive Officer
Ranked #3,359 out of 105,518 Corporate Insiders
Profitable Transactions
7 out of 21 Profitable Transactions
Average Return
+30.90%
Average return per transaction
Time Frame
Compare to
Insider Holdings
100.00%
A breakdown of Marcio Bastos Fonseca's holdings
Insider Roles
President & Chief Executive Officer
Roles that Marcio Bastos Fonseca holds in companies
Most Profitable Insider Trade
The most profitable trade made by Marcio Bastos Fonseca
Marcio Bastos Fonseca's Trading History
List of latest transactions for each holding click on a transaction to see Marcio Bastos Fonseca's performance on stock
You May Also Like
Marcio Bastos Fonseca insider profile FAQ
What is the percentage of profitable transactions made by Marcio Bastos Fonseca?
The percentage of profitable transactions made by Marcio Bastos Fonseca is 33%.
What is the average return per transaction made by Marcio Bastos Fonseca?
The average return per transaction made by Marcio Bastos Fonseca is 30.90%.
What stocks does Marcio Bastos Fonseca hold?
Marcio Bastos Fonseca holds: GRSLF stocks.
What was Marcio Bastos Fonseca’s latest transaction?
Marcio Bastos Fonseca latest transaction was an Informative Buy of $9.21K.
What was Marcio Bastos Fonseca's most profitable transaction?
Marcio Bastos Fonseca’s most profitable transaction was an Informative Buy of GRSLF stock on November 5, 2019. The return on the trade was 248.90%.
What is Marcio Bastos Fonseca's role in GR Silver Mining?
Marcio Bastos Fonseca's role in GR Silver Mining is President & Chief Executive Officer.
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.