Mark R. Widmar
Director · ALBEMARLE CORP
IndividualSelling only38 10b5-1 trades
- 2025
- Jul 6, 2026
- 12
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark R. Widmar 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.
- Georges Antoun - $10.62M in FSLR purchases and sales in the last 12 months
- J. Kent Masters - $5.02M in ALB purchases and sales in the last 12 months
- Alexander R. Bradley - $4.01M in FSLR purchases and sales in the last 12 months
- Jason E. Dymbort - $3.82M in FSLR purchases and sales in the last 12 months
- Caroline Stockdale - $3.57M in FSLR purchases and sales in the last 12 months
- Markus Gloeckler - $3.06M in FSLR purchases and sales in the last 12 months
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Frequently asked questions
Who is Mark R. Widmar?
Mark R. Widmar is a corporate insider, tracked as Director of ALBEMARLE CORP (ALB). InsiderAlpha holds 12 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Mark R. Widmar last file a Form 4?
The most recent primary Form 4 on record is dated 6 July 2026, one of 12 filings going back to 2025.
Has Mark R. Widmar been buying or selling stock?
Recorded transactions: 0 open-market purchases and 74 open-market sales ($14.61M) across all tracked filings.
