Michael M Gostomski - Net Worth and Insider Trading
Michael M Gostomski Net Worth
The estimated net worth of Michael M Gostomski is at least $4 Million dollars as of 2025-04-13. Michael M Gostomski is the Director of Fastenal Co and owns about 48,000 shares of Fastenal Co (FAST) stock worth over $4 Million. Details can be seen in Michael M Gostomski'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 Michael M Gostomski has not made any transactions after 2008-09-10 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Michael M Gostomski
Michael M Gostomski Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Michael M Gostomski owns 2 companies in total, including Fastenal Co (FAST) , and Dais Corp (DLYT) .
Click here to see the complete history of Michael M Gostomski’s form 4 insider trades.
Insider Ownership Summary of Michael M Gostomski
Ticker | Comapny | Transaction Date | Type of Owner |
---|---|---|---|
FAST | Fastenal Co | 2008-09-10 | director |
DLYT | Dais Corp | 2009-12-03 | 10 percent owner |
Michael M Gostomski Latest Holdings Summary
Michael M Gostomski currently owns a total of 1 stock. Michael M Gostomski owns 48,000 shares of Fastenal Co (FAST) as of September 10, 2008, with a value of $4 Million.
Latest Holdings of Michael M Gostomski
Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
FAST | Fastenal Co | 2008-09-10 | 48,000 | 80.64 | 3,870,720 |
Holding Weightings of Michael M Gostomski
Michael M Gostomski Form 4 Trading Tracker
According to the SEC Form 4 filings, Michael M Gostomski has made a total of 0 transactions in Fastenal Co (FAST) over the past 5 years. The most-recent trade in Fastenal Co is the sale of 498,000 shares on September 10, 2008, which brought Michael M Gostomski around $7 Million.
Insider Trading History of Michael M Gostomski
- 1
Michael M Gostomski Trading Performance
Michael M Gostomski Ownership Network
Ownership Network List of Michael M Gostomski
Ownership Network Relation of Michael M Gostomski

Michael M Gostomski Owned Company Details
What does Fastenal Co do?
Who are the key executives at Fastenal Co?
Michael M Gostomski is the director of Fastenal Co. Other key executives at Fastenal Co include Chief Financial Officer/EVP Holden Lewis , Executive Vice President James C Jansen , and Officer-Executive Vice Preside Charles S. Miller .
Fastenal Co (FAST) Insider Trades Summary
Over the past 18 months, Michael M Gostomski made no insider transaction in Fastenal Co (FAST). Other recent insider transactions involving Fastenal Co (FAST) include a net sale of 167,062 shares made by Daniel L Florness , a net sale of 58,890 shares made by Charles S. Miller , and a net sale of 56,636 shares made by William Joseph Drazkowski .
In summary, during the past 3 months, insiders sold 68,664 shares of Fastenal Co (FAST) in total and bought 0 shares, with a net sale of 68,664 shares. During the past 18 months, 747,967 shares of Fastenal Co (FAST) were sold and 4,350 shares were bought by its insiders, resulting in a net sale of 743,617 shares.
Fastenal Co (FAST)'s detailed insider trading history can be found in Insider Trading Tracker table.
Fastenal Co Insider Transactions
Michael M Gostomski Mailing Address
Above is the net worth, insider trading, and ownership report for Michael M Gostomski. Currently GuruFocus does not have mailing address information for Michael M Gostomski.