Mark S Siegel - Net Worth and Insider Trading
Mark S Siegel Net Worth
The estimated net worth of Mark S Siegel is at least $9 Million dollars as of 2025-04-29. Mark S Siegel is the Chairman of the Board of Patterson-UTI Energy Inc and owns about 1,428,783 shares of Patterson-UTI Energy Inc (PTEN) stock worth over $9 Million. Details can be seen in Mark S Siegel'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 Mark S Siegel has not made any transactions after 2014-06-12 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Mark S Siegel
Mark S Siegel Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Mark S Siegel owns 1 companies in total, including Patterson-UTI Energy Inc (PTEN) .
Click here to see the complete history of Mark S Siegel’s form 4 insider trades.
Insider Ownership Summary of Mark S Siegel
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
PTEN | Patterson-UTI Energy Inc | 2014-06-12 | director & Chairman of the Board |
Mark S Siegel Latest Holdings Summary
Mark S Siegel currently owns a total of 1 stock. Mark S Siegel owns 1,428,783 shares of Patterson-UTI Energy Inc (PTEN) as of June 12, 2014, with a value of $9 Million.
Latest Holdings of Mark S Siegel
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
PTEN | Patterson-UTI Energy Inc | 2014-06-12 | 1,428,783 | 6.01 | 8,586,986 |
Holding Weightings of Mark S Siegel
Mark S Siegel Form 4 Trading Tracker
According to the SEC Form 4 filings, Mark S Siegel has made a total of 0 transactions in Patterson-UTI Energy Inc (PTEN) over the past 5 years. The most-recent trade in Patterson-UTI Energy Inc is the sale of 340,000 shares on June 12, 2014, which brought Mark S Siegel around $11 Million.
Insider Trading History of Mark S Siegel
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Mark S Siegel Trading Performance
Mark S Siegel Ownership Network
Ownership Network List of Mark S Siegel
Ownership Network Relation of Mark S Siegel

Mark S Siegel Owned Company Details
What does Patterson-UTI Energy Inc do?
Who are the key executives at Patterson-UTI Energy Inc?
Mark S Siegel is the director & Chairman of the Board of Patterson-UTI Energy Inc. Other key executives at Patterson-UTI Energy Inc include Chief Operating Officer Hendricks William Andrew Jr , President-Completions Matthew Gillard , and EVP & Chief Financial Officer Charles Andrew Smith .
Patterson-UTI Energy Inc (PTEN) Insider Trades Summary
Over the past 18 months, Mark S Siegel made no insider transaction in Patterson-UTI Energy Inc (PTEN). Other recent insider transactions involving Patterson-UTI Energy Inc (PTEN) include a net sale of 633,260 shares made by Drummond Robert Wayne Jr , a net sale of 400,149 shares made by James Carl Stewart , and a net sale of 60,000 shares made by Matthew Gillard .
In summary, during the past 3 months, insiders sold 470,149 shares of Patterson-UTI Energy Inc (PTEN) in total and bought 25,000 shares, with a net sale of 445,149 shares. During the past 18 months, 1,108,409 shares of Patterson-UTI Energy Inc (PTEN) were sold and 25,000 shares were bought by its insiders, resulting in a net sale of 1,083,409 shares.
Patterson-UTI Energy Inc (PTEN)'s detailed insider trading history can be found in Insider Trading Tracker table.
Patterson-UTI Energy Inc Insider Transactions
Mark S Siegel Mailing Address
Above is the net worth, insider trading, and ownership report for Mark S Siegel. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Mark S Siegel's mailing address is: Doylestown Pa 18901.