Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark A. Alexander files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Paul S. Levy - $4.39M in BLDR purchases and sales in the last 12 months
- David E. Rush - $391K in BLDR purchases and sales in the last 12 months
- Brian H. Zander - $32K in WPC purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Mark A. Alexander?
Mark A. Alexander is a corporate insider of Builders FirstSource, Inc. (BLDR). InsiderAlpha holds 13 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Mark A. Alexander last file a Form 4?
The most recent primary Form 4 on record is dated 2 June 2026, one of 13 filings going back to 2024.
Has Mark A. Alexander been buying or selling stock?
Recorded transactions: 1 open-market purchase ($276K) and 0 open-market sales across all tracked filings.
