John Joseph Brennan - Net Worth and Insider Trading
John Joseph Brennan Net Worth
The estimated net worth of John Joseph Brennan is at least $4 Million dollars as of 2025-05-11. John Joseph Brennan is the Director of The Hanover Insurance Group Inc and owns about 9,220 shares of The Hanover Insurance Group Inc (THG) stock worth over $2 Million. John Joseph Brennan is the Director of American Express Co and owns about 4,000 shares of American Express Co (AXP) stock worth over $1 Million. John Joseph Brennan is also the Director of GE Aerospace and owns about 4,375 shares of GE Aerospace (GE) stock worth over $940,450. Details can be seen in John Joseph Brennan'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 Joseph Brennan has not made any transactions after 2017-07-24 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of John Joseph Brennan
John Joseph Brennan Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, John Joseph Brennan owns 4 companies in total, including American Express Co (AXP) , GE Aerospace (GE) , and LPL Financial Holdings Inc (LPLA) among others .
Click here to see the complete history of John Joseph Brennan’s form 4 insider trades.
Insider Ownership Summary of John Joseph Brennan
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
AXP | American Express Co | 2017-02-22 | director |
GE | GE Aerospace | 2017-07-24 | director |
LPLA | LPL Financial Holdings Inc | 2010-12-01 | director |
![]() | ![]() | 2011-11-01 | director |
John Joseph Brennan Latest Holdings Summary
John Joseph Brennan currently owns a total of 3 stocks. Among these stocks, John Joseph Brennan owns 9,220 shares of The Hanover Insurance Group Inc (THG) as of November 1, 2011, with a value of $2 Million and a weighting of 42.51%. John Joseph Brennan owns 4,000 shares of American Express Co (AXP) as of February 22, 2017, with a value of $1 Million and a weighting of 31.48%. John Joseph Brennan also owns 4,375 shares of GE Aerospace (GE) as of July 24, 2017, with a value of $940,450 and a weighting of 26.01%.
Latest Holdings of John Joseph Brennan
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
THG | The Hanover Insurance Group Inc | 2011-11-01 | 9,220 | 166.67 | 1,536,697 |
AXP | American Express Co | 2017-02-22 | 4,000 | 284.51 | 1,138,040 |
GE | GE Aerospace | 2017-07-24 | 4,375 | 214.96 | 940,450 |
Holding Weightings of John Joseph Brennan
John Joseph Brennan Form 4 Trading Tracker
According to the SEC Form 4 filings, John Joseph Brennan has made a total of 0 transactions in The Hanover Insurance Group Inc (THG) over the past 5 years. The most-recent trade in The Hanover Insurance Group Inc is the acquisition of 1,348 shares on November 1, 2011, which cost John Joseph Brennan around $50,024.
According to the SEC Form 4 filings, John Joseph Brennan has made a total of 0 transactions in American Express Co (AXP) over the past 5 years. The most-recent trade in American Express Co is the acquisition of 4,000 shares on February 22, 2017, which cost John Joseph Brennan around $318,960.
According to the SEC Form 4 filings, John Joseph Brennan has made a total of 0 transactions in GE Aerospace (GE) over the past 5 years. The most-recent trade in GE Aerospace is the acquisition of 1,250 shares on July 24, 2017, which cost John Joseph Brennan around $258,000.
Insider Trading History of John Joseph Brennan
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John Joseph Brennan Trading Performance
GuruFocus tracks the stock performance after each of John Joseph Brennan's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by John Joseph Brennan is -0.55%. GuruFocus also compares John Joseph Brennan's trading performance to market benchmark return within the same time period. The performance of stocks bought by John Joseph Brennan within 3 months outperforms 3 times out of 9 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how John Joseph Brennan's insider trading performs compared to the benchmark.
Performance of John Joseph Brennan
John Joseph Brennan Ownership Network
Ownership Network List of John Joseph Brennan
Ownership Network Relation of John Joseph Brennan

John Joseph Brennan Owned Company Details
What does American Express Co do?
Who are the key executives at American Express Co?
John Joseph Brennan is the director of American Express Co. Other key executives at American Express Co include President & U.S. Consumer Serv Howard Grosfield , Pres. & Global Comm. Services Anna Marrs , and Controller Quinn Jessica Lieberman .
American Express Co (AXP) Insider Trades Summary
Over the past 18 months, John Joseph Brennan made no insider transaction in American Express Co (AXP). Other recent insider transactions involving American Express Co (AXP) include a net sale of 329,702 shares made by Stephen J Squeri , a net sale of 141,764 shares made by Douglas E. Buckminster , and a net sale of 72,454 shares made by Denise Pickett .
In summary, during the past 3 months, insiders sold 37,452 shares of American Express Co (AXP) in total and bought 3,700 shares, with a net sale of 33,752 shares. During the past 18 months, 966,800 shares of American Express Co (AXP) were sold and 3,700 shares were bought by its insiders, resulting in a net sale of 963,100 shares.
American Express Co (AXP)'s detailed insider trading history can be found in Insider Trading Tracker table.
American Express Co Insider Transactions
John Joseph Brennan Mailing Address
Above is the net worth, insider trading, and ownership report for John Joseph Brennan. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, John Joseph Brennan's mailing address is: Boston Ma 02108.