Mark R Witkowski - Net Worth and Insider Trading
Mark R Witkowski Net Worth
The estimated net worth of Mark R Witkowski is at least $1 Million dollars as of 2026-09-16. Mark R Witkowski is the CEO of Core & Main Inc and owns about 35,847 shares of Core & Main Inc (CNM) stock worth over $1 Million. Details can be seen in Mark R Witkowski'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 R Witkowski has not made any transactions after 2025-08-18 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Mark R Witkowski
Mark R Witkowski Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Mark R Witkowski owns 1 companies in total, including Core & Main Inc (CNM) .
Click here to see the complete history of Mark R Witkowski’s form 4 insider trades.
Insider Ownership Summary of Mark R Witkowski
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| CNM | Core & Main Inc | 2025-08-18 | Chief Financial Officer |
Mark R Witkowski Latest Holdings Summary
Mark R Witkowski currently owns a total of 1 stock. Mark R Witkowski owns 35,847 shares of Core & Main Inc (CNM) as of August 18, 2025, with a value of $1 Million.
Latest Holdings of Mark R Witkowski
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| CNM | Core & Main Inc | 2025-08-18 | 35,847 | 41.08 | 1,472,595 |
Holding Weightings of Mark R Witkowski
Mark R Witkowski Form 4 Trading Tracker
According to the SEC Form 4 filings, Mark R Witkowski has made a total of 8 transactions in Core & Main Inc (CNM) over the past 5 years, including 0 buys and 8 sells. The most-recent trade in Core & Main Inc is the sale of 100,000 shares on August 18, 2025, which brought Mark R Witkowski around $6 Million.
Insider Trading History of Mark R Witkowski
* 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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Mark R Witkowski Trading Performance
Mark R Witkowski Ownership Network
Ownership Network List of Mark R Witkowski
Ownership Network Relation of Mark R Witkowski
Mark R Witkowski Owned Company Details
What does Core & Main Inc do?
Who are the key executives at Core & Main Inc?
Mark R Witkowski is the Chief Financial Officer of Core & Main Inc. Other key executives at Core & Main Inc include Chief Financial Officer Robyn L Bradbury , General Counsel and CCO Jackie M Burkhardt , and Senior VP & Human Resources Carla D Harper .
Core & Main Inc (CNM) Insider Trades Summary
Over the past 18 months, Mark R Witkowski made 2 insider transaction in Core & Main Inc (CNM) with a net sale of 200,000. Other recent insider transactions involving Core & Main Inc (CNM) include a net sale of 35,000 shares made by Robyn L Bradbury , a net sale of 83,927 shares made by John Weldon Stephens , and a net purchase of 4,039 shares made by James D Hope .
In summary, during the past 3 months, insiders sold 0 shares of Core & Main Inc (CNM) in total and bought 2,067 shares, with a net purchase of 2,067 shares. During the past 18 months, 617,372 shares of Core & Main Inc (CNM) were sold and 4,039 shares were bought by its insiders, resulting in a net sale of 613,333 shares.
Core & Main Inc (CNM)'s detailed insider trading history can be found in Insider Trading Tracker table.
Core & Main Inc Insider Transactions
Mark R Witkowski Mailing Address
Above is the net worth, insider trading, and ownership report for Mark R Witkowski. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Mark R Witkowski's mailing address is: St. Louis Mo 63146.
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