Joseph Roderick Matheson - Net Worth and Insider Trading

Joseph Roderick Matheson Net Worth

The estimated net worth of Joseph Roderick Matheson is at least $1 Million dollars as of 2025-07-03. Joseph Roderick Matheson is the Director, Senior Officer of Stillwater Critical Minerals Corp and owns about 5,224,000 shares of Stillwater Critical Minerals Corp (TSXV:PGE) stock worth over $1 Million. Joseph Roderick Matheson is also the 10% Security Holder, Director, Senior Officer of Marvel Biosciences Corp and owns about 1,607,049 shares of Marvel Biosciences Corp (TSXV:MRVL) stock worth over $233,022. Details can be seen in Joseph Roderick Matheson's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Joseph Roderick Matheson has not made any transactions after 2025-06-20 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

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Transaction Summary of Joseph Roderick Matheson

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Joseph Roderick Matheson Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Joseph Roderick Matheson owns 2 companies in total, including Stillwater Critical Minerals Corp (TSXV:PGE) , and Marvel Biosciences Corp (TSXV:MRVL) .

Click here to see the complete history of Joseph Roderick Matheson’s form 4 insider trades.

Insider Ownership Summary of Joseph Roderick Matheson

Ticker Company Transaction Date Type of Owner
TSXV:PGE Stillwater Critical Minerals Corp 2023-12-21 Director & Senior Officer
TSXV:MRVL Marvel Biosciences Corp 2025-06-20 Director & Senior Officer

Joseph Roderick Matheson Latest Holdings Summary

Joseph Roderick Matheson currently owns a total of 2 stocks. Among these stocks, Joseph Roderick Matheson owns 5,224,000 shares of Stillwater Critical Minerals Corp (TSXV:PGE) as of December 21, 2023, with a value of $1 Million and a weighting of 82.48%. Joseph Roderick Matheson also owns 1,607,049 shares of Marvel Biosciences Corp (TSXV:MRVL) as of June 20, 2025, with a value of $233,022 and a weighting of 17.52%.

Latest Holdings of Joseph Roderick Matheson

Ticker Company Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
TSXV:PGE Stillwater Critical Minerals Corp 2023-12-21 5,224,000 0.21 1,097,040
TSXV:MRVL Marvel Biosciences Corp 2025-06-20 1,607,049 0.15 233,022

Holding Weightings of Joseph Roderick Matheson


Joseph Roderick Matheson Form 4 Trading Tracker

According to the SEC Form 4 filings, Joseph Roderick Matheson has made a total of 1 transactions in Stillwater Critical Minerals Corp (TSXV:PGE) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Stillwater Critical Minerals Corp is the acquisition of 55,000 shares on December 21, 2023, which cost Joseph Roderick Matheson around $4,675.

According to the SEC Form 4 filings, Joseph Roderick Matheson has made a total of 18 transactions in Marvel Biosciences Corp (TSXV:MRVL) over the past 5 years, including 18 buys and 0 sells. The most-recent trade in Marvel Biosciences Corp is the acquisition of 184,000 shares on June 20, 2025, which cost Joseph Roderick Matheson around $23,920.

Insider Trading History of Joseph Roderick Matheson

No transactions are available. GuruFocus only tracks and displays the purchase and sale of non-derivative security in open market or private transactions from SEC filings with the transaction code of P or S.
Total 0
  • 1
Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as conversion of derivative security or exercise of options are not included. Insiders are limited to only officers and/or directors of the company.

Joseph Roderick Matheson Trading Performance

GuruFocus tracks the stock performance after each of Joseph Roderick Matheson's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Joseph Roderick Matheson is -18.16%. GuruFocus also compares Joseph Roderick Matheson's trading performance to market benchmark return within the same time period. The performance of stocks bought by Joseph Roderick Matheson within 3 months outperforms 2 times out of 14 transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how Joseph Roderick Matheson's insider trading performs compared to the benchmark.

Please note GuruFocus will not track the insiders’ transaction performance if he/she does not have buying transactions.

Performance of Joseph Roderick Matheson

Average Return

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Average return per transaction

Outperforming Transactions

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2 out of 11 outperforming transactions.
Each transaction is measured over a period and compared to .
1 Month 3 Months 6 Months 1 Year 2 Years 3 Years
Return(%) 0.78 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) 1.71 LIMIT LIMIT LIMIT LIMIT LIMIT

Joseph Roderick Matheson Ownership Network

Ownership Network List of Joseph Roderick Matheson

No Data

Ownership Network Relation of Joseph Roderick Matheson

Insider Network Chart


Joseph Roderick Matheson Owned Company Details

What does Stillwater Critical Minerals Corp do?

Who are the key executives at Stillwater Critical Minerals Corp?

Joseph Roderick Matheson is the Director & Senior Officer of Stillwater Critical Minerals Corp. Other key executives at Stillwater Critical Minerals Corp include Senior Officer Daniel F. Grobler , and Senior Officer Jennifer Lynne Bath .

Stillwater Critical Minerals Corp (TSXV:PGE) Insider Trades Summary

Over the past 18 months, Joseph Roderick Matheson made no insider transaction in Stillwater Critical Minerals Corp (TSXV:PGE). Other recent insider transactions involving Stillwater Critical Minerals Corp (TSXV:PGE) include a net purchase of 211,500 shares made by Michael Victor Rowley , and a net purchase of 41,000 shares made by Daniel F. Grobler .

In summary, during the past 3 months, insiders sold 0 shares of Stillwater Critical Minerals Corp (TSXV:PGE) in total and bought 18,000 shares, with a net purchase of 18,000 shares. During the past 18 months, 0 shares of Stillwater Critical Minerals Corp (TSXV:PGE) were sold and 252,500 shares were bought by its insiders, resulting in a net purchase of 252,500 shares.

Stillwater Critical Minerals Corp (TSXV:PGE)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Stillwater Critical Minerals Corp Insider Transactions

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Joseph Roderick Matheson Mailing Address

Above is the net worth, insider trading, and ownership report for Joseph Roderick Matheson. Currently GuruFocus does not have mailing address information for Joseph Roderick Matheson.