John C Fontaine - Net Worth and Insider Trading
John C Fontaine Net Worth
The estimated net worth of John C Fontaine is at least $283,872 dollars as of 2025-04-25. John C Fontaine is the Director of Century Aluminum Co and owns about 16,862 shares of Century Aluminum Co (CENX) stock worth over $283,872. Details can be seen in John C Fontaine'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 John C Fontaine has not made any transactions after 2010-09-02 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of John C Fontaine
John C Fontaine Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, John C Fontaine owns 1 companies in total, including Century Aluminum Co (CENX) .
Click here to see the complete history of John C Fontaine’s form 4 insider trades.
Insider Ownership Summary of John C Fontaine
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
CENX | Century Aluminum Co | 2010-09-02 | director |
John C Fontaine Latest Holdings Summary
John C Fontaine currently owns a total of 1 stock. John C Fontaine owns 16,862 shares of Century Aluminum Co (CENX) as of September 2, 2010, with a value of $283,872.
Latest Holdings of John C Fontaine
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
CENX | Century Aluminum Co | 2010-09-02 | 16,862 | 16.84 | 283,872 |
Holding Weightings of John C Fontaine
John C Fontaine Form 4 Trading Tracker
According to the SEC Form 4 filings, John C Fontaine has made a total of 0 transactions in Century Aluminum Co (CENX) over the past 5 years. The most-recent trade in Century Aluminum Co is the sale of 6,000 shares on September 2, 2010, which brought John C Fontaine around $64,200.
Insider Trading History of John C Fontaine
- 1
John C Fontaine Trading Performance
GuruFocus tracks the stock performance after each of John C Fontaine's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by John C Fontaine is -20.64%. GuruFocus also compares John C Fontaine's trading performance to market benchmark return within the same time period. The performance of stocks bought by John C Fontaine within 3 months outperforms 0 times out of 1 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how John C Fontaine's insider trading performs compared to the benchmark.
Performance of John C Fontaine
John C Fontaine Ownership Network
Ownership Network List of John C Fontaine
Ownership Network Relation of John C Fontaine

John C Fontaine Owned Company Details
What does Century Aluminum Co do?
Who are the key executives at Century Aluminum Co?
John C Fontaine is the director of Century Aluminum Co. Other key executives at Century Aluminum Co include See Remarks Robert F Hoffman , director & President and CEO Jesse E Gary , and EVP - Global Operations Gunnar Gudlaugsson .
Century Aluminum Co (CENX) Insider Trades Summary
Over the past 18 months, John C Fontaine made no insider transaction in Century Aluminum Co (CENX). Other recent insider transactions involving Century Aluminum Co (CENX) include a net sale of 277,405 shares made by Jesse E Gary , a net sale of 19,500 shares made by Robert F Hoffman , and a net sale of 20,000 shares made by Gunnar Gudlaugsson .
In summary, during the past 3 months, insiders sold 7,500 shares of Century Aluminum Co (CENX) in total and bought 0 shares, with a net sale of 7,500 shares. During the past 18 months, 334,579 shares of Century Aluminum Co (CENX) were sold and 0 shares were bought by its insiders, resulting in a net sale of 334,579 shares.
Century Aluminum Co (CENX)'s detailed insider trading history can be found in Insider Trading Tracker table.
Century Aluminum Co Insider Transactions
John C Fontaine Mailing Address
Above is the net worth, insider trading, and ownership report for John C Fontaine. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, John C Fontaine's mailing address is: New York Ny 10178.