David S Johnson - Net Worth and Insider Trading
David S Johnson Net Worth
The estimated net worth of David S Johnson is at least $15 Million dollars as of 2025-04-19. David S Johnson is the Director of Arthur J. Gallagher & Co and owns about 44,783 shares of Arthur J. Gallagher & Co (AJG) stock worth over $15 Million. Details can be seen in David S Johnson'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 David S Johnson has not made any transactions after 2025-02-12 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of David S Johnson
David S Johnson Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, David S Johnson owns 2 companies in total, including Arthur J. Gallagher & Co (AJG) , and Mondelez International Inc (MDLZ) .
Click here to see the complete history of David S Johnson’s form 4 insider trades.
Insider Ownership Summary of David S Johnson
Ticker | Comapny | Transaction Date | Type of Owner |
---|---|---|---|
AJG | Arthur J. Gallagher & Co | 2025-02-12 | director |
MDLZ | Mondelez International Inc | 2006-01-24 | PRES & NORTH AMER COMMERCIAL |
David S Johnson Latest Holdings Summary
David S Johnson currently owns a total of 1 stock. David S Johnson owns 44,783 shares of Arthur J. Gallagher & Co (AJG) as of February 12, 2025, with a value of $15 Million.
Latest Holdings of David S Johnson
Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
AJG | Arthur J. Gallagher & Co | 2025-02-12 | 44,783 | 329.22 | 14,743,459 |
Holding Weightings of David S Johnson
David S Johnson Form 4 Trading Tracker
According to the SEC Form 4 filings, David S Johnson has made a total of 12 transactions in Arthur J. Gallagher & Co (AJG) over the past 5 years, including 0 buys and 12 sells. The most-recent trade in Arthur J. Gallagher & Co is the sale of 325 shares on February 12, 2025, which brought David S Johnson around $104,670.
Insider Trading History of David S Johnson
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David S Johnson Trading Performance
GuruFocus tracks the stock performance after each of David S Johnson's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by David S Johnson is -7.83%. GuruFocus also compares David S Johnson's trading performance to market benchmark return within the same time period. The performance of stocks bought by David S Johnson 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 David S Johnson's insider trading performs compared to the benchmark.
Performance of David S Johnson
David S Johnson Ownership Network
Ownership Network List of David S Johnson
Ownership Network Relation of David S Johnson

David S Johnson Owned Company Details
What does Arthur J. Gallagher & Co do?
Who are the key executives at Arthur J. Gallagher & Co?
David S Johnson is the director of Arthur J. Gallagher & Co. Other key executives at Arthur J. Gallagher & Co include CORPORATE VP Scott R Hudson , Vice President Patrick Murphy Gallagher , and VICE PRESIDENT William F Ziebell .
Arthur J. Gallagher & Co (AJG) Insider Trades Summary
Over the past 18 months, David S Johnson made 3 insider transaction in Arthur J. Gallagher & Co (AJG) with a net sale of 1,675. Other recent insider transactions involving Arthur J. Gallagher & Co (AJG) include a net sale of 82,610 shares made by Douglas K Howell , a net sale of 71,010 shares made by Scott R Hudson , and a net sale of 49,014 shares made by Walter D. Bay .
In summary, during the past 3 months, insiders sold 65,939 shares of Arthur J. Gallagher & Co (AJG) in total and bought 0 shares, with a net sale of 65,939 shares. During the past 18 months, 303,755 shares of Arthur J. Gallagher & Co (AJG) were sold and 1,115 shares were bought by its insiders, resulting in a net sale of 302,640 shares.
Arthur J. Gallagher & Co (AJG)'s detailed insider trading history can be found in Insider Trading Tracker table.
Arthur J. Gallagher & Co Insider Transactions
David S Johnson Mailing Address
Above is the net worth, insider trading, and ownership report for David S Johnson. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, David S Johnson's mailing address is: Itasca Il 60143.