Joseph T. Martinko
President, Thermal & Specialized Solutions · Chemours Co
- 2025
- Aug 11, 2026
- 4
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Joseph T. Martinko 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.
- Alister Cowan - $203K in CC purchases and sales in the last 12 months
- Mary B. Cranston - $95K in CC purchases and sales in the last 12 months
- Denise Dignam - $51K in CC purchases and sales in the last 12 months
- Calderon Gerardo Familiar - $30K in CC purchases and sales in the last 12 months
- Michael Robert Foley - $30K in CC purchases and sales in the last 12 months
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Frequently asked questions
Who is Joseph T. Martinko?
Joseph T. Martinko is a corporate insider, tracked as President, Thermal & Specialized Solutions of Chemours Co (CC). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Joseph T. Martinko submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Joseph T. Martinko been buying or selling stock?
Recorded transactions: 1 open-market purchase ($30K) and 0 open-market sales across all tracked filings.
