Mark Lang - Net Worth and Insider Trading
Mark Lang Net Worth
The estimated net worth of Mark Lang is at least $126,781 dollars as of 2025-07-25. Mark Lang is the Group Vice President of Sturm Ruger & Co Inc and owns about 3,612 shares of Sturm Ruger & Co Inc (RGR) stock worth over $126,781. Details can be seen in Mark Lang'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 Lang has not made any transactions after 2017-06-23 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Mark Lang
Mark Lang Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Mark Lang owns 1 companies in total, including Sturm Ruger & Co Inc (RGR) .
Click here to see the complete history of Mark Lang’s form 4 insider trades.
Insider Ownership Summary of Mark Lang
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
RGR | Sturm Ruger & Co Inc | 2017-06-23 | Group Vice President |
Mark Lang Latest Holdings Summary
Mark Lang currently owns a total of 1 stock. Mark Lang owns 3,612 shares of Sturm Ruger & Co Inc (RGR) as of June 23, 2017, with a value of $126,781.
Latest Holdings of Mark Lang
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
RGR | Sturm Ruger & Co Inc | 2017-06-23 | 3,612 | 35.10 | 126,781 |
Holding Weightings of Mark Lang
Mark Lang Form 4 Trading Tracker
According to the SEC Form 4 filings, Mark Lang has made a total of 0 transactions in Sturm Ruger & Co Inc (RGR) over the past 5 years. The most-recent trade in Sturm Ruger & Co Inc is the sale of 20,000 shares on June 23, 2017, which brought Mark Lang around $1 Million.
Insider Trading History of Mark Lang
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Mark Lang Trading Performance
Mark Lang Ownership Network
Ownership Network List of Mark Lang
Ownership Network Relation of Mark Lang

Mark Lang Owned Company Details
What does Sturm Ruger & Co Inc do?
Who are the key executives at Sturm Ruger & Co Inc?
Mark Lang is the Group Vice President of Sturm Ruger & Co Inc. Other key executives at Sturm Ruger & Co Inc include Vice President Sales and Mtg. Christopher John Killoy , VP of Administration Sarah F Colbert , and VP of Prescott Operations Timothy Lowney .
Sturm Ruger & Co Inc (RGR) Insider Trades Summary
Over the past 18 months, Mark Lang made no insider transaction in Sturm Ruger & Co Inc (RGR). Other recent insider transactions involving Sturm Ruger & Co Inc (RGR) include a net sale of 20,000 shares made by Christopher John Killoy , a net sale of 10,000 shares made by Sarah F Colbert , and a net purchase of 8,000 shares made by Cosentino John A Jr .
In summary, during the past 3 months, insiders sold 20,612 shares of Sturm Ruger & Co Inc (RGR) in total and bought 15,200 shares, with a net sale of 5,412 shares. During the past 18 months, 31,750 shares of Sturm Ruger & Co Inc (RGR) were sold and 17,700 shares were bought by its insiders, resulting in a net sale of 14,050 shares.
Sturm Ruger & Co Inc (RGR)'s detailed insider trading history can be found in Insider Trading Tracker table.
Sturm Ruger & Co Inc Insider Transactions
Mark Lang Mailing Address
Above is the net worth, insider trading, and ownership report for Mark Lang. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Mark Lang's mailing address is: Southport Ct 06890.