Mike Slessor - Net Worth and Insider Trading
Mike Slessor Net Worth
The estimated net worth of Mike Slessor is at least $51 Million dollars as of 2026-08-08. Mike Slessor is the CEO of FormFactor Inc and owns about 430,412 shares of FormFactor Inc (FORM) stock worth over $51 Million. Details can be seen in Mike Slessor'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 Mike Slessor has not made any transactions after 2026-07-15 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Mike Slessor
Mike Slessor Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Mike Slessor owns 2 companies in total, including FormFactor Inc (FORM) , and Benchmark Electronics Inc (BHE) .
Click here to see the complete history of Mike Slessor’s form 4 insider trades.
Insider Ownership Summary of Mike Slessor
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| FORM | FormFactor Inc | 2026-07-15 | director & CEO |
| BHE | Benchmark Electronics Inc | 2025-10-07 | director |
Mike Slessor Latest Holdings Summary
Mike Slessor currently owns a total of 1 stock. Mike Slessor owns 430,412 shares of FormFactor Inc (FORM) as of July 15, 2026, with a value of $51 Million.
Latest Holdings of Mike Slessor
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| FORM | FormFactor Inc | 2026-07-15 | 430,412 | 117.55 | 50,594,931 |
Holding Weightings of Mike Slessor
Mike Slessor Form 4 Trading Tracker
According to the SEC Form 4 filings, Mike Slessor has made a total of 26 transactions in FormFactor Inc (FORM) over the past 5 years, including 0 buys and 26 sells. The most-recent trade in FormFactor Inc is the sale of 4,735 shares on July 15, 2026, which brought Mike Slessor around $560,198.
Insider Trading History of Mike Slessor
* 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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Mike Slessor Trading Performance
Mike Slessor Ownership Network
Ownership Network List of Mike Slessor
Ownership Network Relation of Mike Slessor
Mike Slessor Owned Company Details
What does FormFactor Inc do?
Who are the key executives at FormFactor Inc?
Mike Slessor is the director & CEO of FormFactor Inc. Other key executives at FormFactor Inc include CFO & SVP Global Finance Aric Brendan Mckinnis , CFO & SVP Global Finance Shai Shahar , and SR VP & CFO Michael M Ludwig .
FormFactor Inc (FORM) Insider Trades Summary
Over the past 18 months, Mike Slessor made 13 insider transaction in FormFactor Inc (FORM) with a net sale of 137,014. Other recent insider transactions involving FormFactor Inc (FORM) include a net sale of 17,770 shares made by Kelley Steven-waiss , a net sale of 16,231 shares made by Dennis Thomas St , and a net sale of 11,050 shares made by Brian C White .
In summary, during the past 3 months, insiders sold 52,678 shares of FormFactor Inc (FORM) in total and bought 0 shares, with a net sale of 52,678 shares. During the past 18 months, 219,096 shares of FormFactor Inc (FORM) were sold and 0 shares were bought by its insiders, resulting in a net sale of 219,096 shares.
FormFactor Inc (FORM)'s detailed insider trading history can be found in Insider Trading Tracker table.
FormFactor Inc Insider Transactions
Mike Slessor Mailing Address
Above is the net worth, insider trading, and ownership report for Mike Slessor. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Mike Slessor's mailing address is: Livermore Ca 94551.
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