Insider Trading & Ownership of Mark A. Alexander

Location
New York, New York, NY
Summary
The estimated net worth of Mark A. Alexander is at least $8,185,917 dollars as of 03 Mar 2026. Mark A. Alexander is the Director of Builders FirstSource, Inc. and owns shares of Builders FirstSource, Inc. (BLDR) stock worth about $4.69M. Mark A. Alexander is the Director of W. P. Carey Inc. and owns shares of W. P. Carey Inc. (WPC) stock worth about $3.5M.
Signature
/s/ Minator Azemi, by power of attorney
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All Insider Reports

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Quick Takeaways

  • Mark A. Alexander has 2 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $8,185,917.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Builders FirstSource, Inc. ($4,687,418).
  • Past-year value change for that position: .

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.

Source Evidence

Filed on Form 4

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

See Original Filing

Ownership of Mark A. Alexander

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
BLDR Builders FirstSource, Inc. Director $4,687,418 01 Mar 2026
WPC W. P. Carey Inc. Director $3,498,499 01 Oct 2025

Insider Transactions Reported by Mark A. Alexander:

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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