Costa Mark J

Costa Mark J, CEO and Board Chair of EMN (Eastman Chemical Company), has demonstrated a clear selling bias in recent years, with $32.9 million in total sales outweighing $18.7 million in purchases across 30 reported transactions. The bulk of this activity occurred in concentrated disposals, including a $10.3 million sale on May 7, 2024, and a $9.2 million transaction on November 26, 2024—both accompanied by smaller derivative transactions coded as "M" (exercise of derivative security). More recently, Costa continued this trend with a $3.4 million sale on February 4, 2026, and a $2 million sale on February 18, 2026. The only notable buy in the dataset was a $502,386 open-market purchase on August 27, 2025, though this was dwarfed by concurrent sales. The transactions reveal a pattern of methodical unwinding, often timed around annual equity award vesting periods. For instance, multiple sales in late November 2024 coincided with derivative exercises, suggesting pre-planned dispositions of vested awards. While Costa has maintained routine acquisitions through equity awards (marked as "A" with $0 value), his discretionary sales—particularly the eight-figure disposals—indicate a deliberate reduction in exposure. The absence of transactions in other companies suggests his insider activity is exclusively tied to EMN. The consistency of sales across multiple years, including six disposals in the most recent reporting period, underscores a sustained trend rather than isolated portfolio rebalancing.