Steven R Mitchell - Net Worth and Insider Trading
Steven R Mitchell Net Worth
The estimated net worth of Steven R Mitchell is at least $1 Million dollars as of 2026-07-05. Steven R Mitchell is the Director of Aspen Aerogels Inc and owns about 134,260 shares of Aspen Aerogels Inc (ASPN) stock worth over $749,171. Steven R Mitchell is also the Director of StepStone Group Inc and owns about 12,793 shares of StepStone Group Inc (STEP) stock worth over $526,176. Details can be seen in Steven R Mitchell'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 Steven R Mitchell has not made any transactions after 2026-02-23 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Steven R Mitchell
Steven R Mitchell Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Steven R Mitchell owns 4 companies in total, including StepStone Group Inc (STEP) , Aspen Aerogels Inc (ASPN) , and USA Compression Partners LP (USAC) among others .
Click here to see the complete history of Steven R Mitchell’s form 4 insider trades.
Insider Ownership Summary of Steven R Mitchell
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| STEP | StepStone Group Inc | 2026-02-23 | director & 10 percent owner |
| ASPN | Aspen Aerogels Inc | 2023-09-07 | director |
| USAC | USA Compression Partners LP | 2013-08-30 | 10 percent owner |
| 2021-07-28 | director |
Steven R Mitchell Latest Holdings Summary
Steven R Mitchell currently owns a total of 2 stocks. Among these stocks, Steven R Mitchell owns 134,260 shares of Aspen Aerogels Inc (ASPN) as of September 7, 2023, with a value of $749,171 and a weighting of 58.74%. Steven R Mitchell also owns 12,793 shares of StepStone Group Inc (STEP) as of February 23, 2026, with a value of $526,176 and a weighting of 41.26%.
Latest Holdings of Steven R Mitchell
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| ASPN | Aspen Aerogels Inc | 2023-09-07 | 134,260 | 5.58 | 749,171 |
| STEP | StepStone Group Inc | 2026-02-23 | 12,793 | 41.13 | 526,176 |
Holding Weightings of Steven R Mitchell
Steven R Mitchell Form 4 Trading Tracker
According to the SEC Form 4 filings, Steven R Mitchell has made a total of 2 transactions in Aspen Aerogels Inc (ASPN) over the past 5 years, including 2 buys and 0 sells. The most-recent trade in Aspen Aerogels Inc is the acquisition of 7,541 shares on September 7, 2023, which cost Steven R Mitchell around $49,017.
According to the SEC Form 4 filings, Steven R Mitchell has made a total of 4 transactions in StepStone Group Inc (STEP) over the past 5 years, including 1 buys and 3 sells. The most-recent trade in StepStone Group Inc is the acquisition of 12,793 shares on February 23, 2026, which cost Steven R Mitchell around $565,834.
Insider Trading History of Steven R Mitchell
* The information on this page (including Insider Trading Shares, Share Changes, Cost, etc.) is sourced exclusively from Form 4 filings and does not incorporate any data from 13F or 13D/G filings. As a result, it may differ from the values shown on the Guru page.
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Steven R Mitchell Trading Performance
GuruFocus tracks the stock performance after each of Steven R Mitchell's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Steven R Mitchell is 57.92%. GuruFocus also compares Steven R Mitchell's trading performance to market benchmark return within the same time period. The performance of stocks bought by Steven R Mitchell within 3 months outperforms 3 times out of 3 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Steven R Mitchell's insider trading performs compared to the benchmark.
Performance of Steven R Mitchell
Steven R Mitchell Ownership Network
Ownership Network List of Steven R Mitchell
Ownership Network Relation of Steven R Mitchell

Steven R Mitchell Owned Company Details
What does StepStone Group Inc do?
Who are the key executives at StepStone Group Inc?
Steven R Mitchell is the director & 10 percent owner of StepStone Group Inc. Other key executives at StepStone Group Inc include Head of Strategy Michael I Mccabe , Co-Chief Operating Officer Jose A Fernandez , and Co-Chief Executive Officer Scott W Hart .
StepStone Group Inc (STEP) Insider Trades Summary
Over the past 18 months, Steven R Mitchell made 1 insider transaction in StepStone Group Inc (STEP) with a net purchase of 12,793. Other recent insider transactions involving StepStone Group Inc (STEP) include a net sale of 120,000 shares made by Scott W Hart , a net sale of 390,888 shares made by Michael I Mccabe , and a net sale of 413,500 shares made by Jose A Fernandez .
In summary, during the past 3 months, insiders sold 202,290 shares of StepStone Group Inc (STEP) in total and bought 120,000 shares, with a net sale of 82,290 shares. During the past 18 months, 1,103,234 shares of StepStone Group Inc (STEP) were sold and 132,793 shares were bought by its insiders, resulting in a net sale of 970,441 shares.
StepStone Group Inc (STEP)'s detailed insider trading history can be found in Insider Trading Tracker table.
StepStone Group Inc Insider Transactions
Steven R Mitchell Mailing Address
Above is the net worth, insider trading, and ownership report for Steven R Mitchell. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Steven R Mitchell's mailing address is: Northborough Ma 01532.