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  • Insider Ownership

Insider Trading & Ownership of Mark G. Whittenburg

Location
St. Louis, MO
Summary
The estimated net worth of Mark G. Whittenburg is at least $16,872,241 dollars as of 13 Mar 2026. Mark G. Whittenburg is the General Counsel and Secretary of Core & Main, Inc. and owns shares of Core & Main, Inc. (CNM) stock worth about $16.87M.
Signature
/s/ Mark Whittenburg
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Quick Takeaways

  • Mark G. Whittenburg has 1 issuer position tracked on this page.
  • Estimated disclosed ownership value: $16,872,241.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Core & Main, Inc. ($16,872,241).
  • Past-year value change for that position: -$3,001,255.

Why This Matters

  • This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
  • You can cross-check role, issuer, and filing chronology directly against the SEC source.

Official SEC Source

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of Mark G. Whittenburg

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
CNM Core & Main, Inc. General Counsel and Secretary $16,872,241 -$3,001,255 -15% 11 Mar 2026

Insider Transactions Reported by Mark G. Whittenburg:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

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