Gary R Martz - Net Worth and Insider Trading
Gary R Martz Net Worth
The estimated net worth of Gary R Martz is at least $4 Million dollars as of 2025-07-16. Gary R Martz is the EVP & General Counsel of Greif Inc and owns about 68,186 shares of Greif Inc (GEF) stock worth over $4 Million. Gary R Martz is also the Executive VP & General Counsel of Greif Inc and owns about 1,100 shares of Greif Inc (GEF.B) stock worth over $73,975. Details can be seen in Gary R Martz'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 Gary R Martz has not made any transactions after 2025-07-08 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Gary R Martz
Gary R Martz Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Gary R Martz owns 1 companies in total, including Greif Inc (GEF) .
Click here to see the complete history of Gary R Martz’s form 4 insider trades.
Gary R Martz Latest Holdings Summary
Gary R Martz currently owns a total of 2 stocks. Among these stocks, Gary R Martz owns 68,186 shares of Greif Inc (GEF) as of July 8, 2025, with a value of $4 Million and a weighting of 98.35%. Gary R Martz also owns 1,100 shares of Greif Inc (GEF.B) as of December 27, 2018, with a value of $73,975 and a weighting of 1.65%.
Gary R Martz Form 4 Trading Tracker
According to the SEC Form 4 filings, Gary R Martz has made a total of 1 transactions in Greif Inc (GEF) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Greif Inc is the sale of 29,000 shares on July 8, 2025, which brought Gary R Martz around $2 Million.
According to the SEC Form 4 filings, Gary R Martz has made a total of 0 transactions in Greif Inc (GEF.B) over the past 5 years. The most-recent trade in Greif Inc is the acquisition of 500 shares on December 27, 2018, which cost Gary R Martz around $20,150.
Insider Trading History of Gary R Martz
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Gary R Martz Trading Performance
GuruFocus tracks the stock performance after each of Gary R Martz's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Gary R Martz is 15.66%. GuruFocus also compares Gary R Martz's trading performance to market benchmark return within the same time period. The performance of stocks bought by Gary R Martz within 3 months outperforms 1 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 Gary R Martz's insider trading performs compared to the benchmark.
Gary R Martz Ownership Network
Ownership Network List of Gary R Martz
Ownership Network Relation of Gary R Martz

Gary R Martz Owned Company Details
What does Greif Inc do?
Who are the key executives at Greif Inc?
Gary R Martz is the Senior VP & General Counsel of Greif Inc. Other key executives at Greif Inc include VP Chief Inf & Digital Officer Vivian Bouet , SVP & Pres. Global Industrial P Patrick Gerard Mullaney , and Corporate Treasurer Anthony John Krabill .
Greif Inc (GEF) Insider Trades Summary
Over the past 18 months, Gary R Martz made 1 insider transaction in Greif Inc (GEF) with a net sale of 29,000. Other recent insider transactions involving Greif Inc (GEF) include a net sale of 53,437 shares made by Ole G Rosgaard , a net sale of 1,052 shares made by Bala Sathyanarayanan , and a net sale of 9,000 shares made by Kimberly Anne Kellermann .
In summary, during the past 3 months, insiders sold 94,741 shares of Greif Inc (GEF) in total and bought 0 shares, with a net sale of 94,741 shares. During the past 18 months, 97,752 shares of Greif Inc (GEF) were sold and 3,000 shares were bought by its insiders, resulting in a net sale of 94,752 shares.
Greif Inc (GEF)'s detailed insider trading history can be found in Insider Trading Tracker table.
Greif Inc Insider Transactions
Gary R Martz Mailing Address
Above is the net worth, insider trading, and ownership report for Gary R Martz. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Gary R Martz's mailing address is: Delaware Oh 43015.