Christopher William Samborski
EVP, COO · MARTIN MARIETTA MATERIALS INC
Individual
- 2026
- May 5, 2026
- 1
Filings (90d)
Other insiders active in the same stocks
Insiders who have reported open-market trades at the same companies as Christopher William Samborski. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Laree E. Perez - $637K in MLM purchases and sales on record
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Frequently asked questions
Who is Christopher William Samborski?
Christopher William Samborski is a corporate insider, tracked as EVP, COO of MARTIN MARIETTA MATERIALS INC (MLM). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Christopher William Samborski last file a Form 4?
The only primary Form 4 on record is dated 5 May 2026.
