Corning SVP & CHRO Sells Over 50% of Direct Stake for $1.5M

Insider Transaction Overview

On September 4, 2026, Michelle L. Gullo, Senior Vice President & Chief Human Resources Officer at Corning Inc ($GLW), executed an open-market sale of 9,874 shares of Common Stock at a volume-weighted average price of $152.2902 per share (ranging from $151.9935 to $152.55), realizing gross proceeds of approximately $1,503,713.43.

Impact on Ownership

• Pre-Transaction Holdings: ~19,258 shares
• Shares Sold: 9,874 shares
• Post-Transaction Holdings: 9,384 shares
• Ownership Change: Represents a reduction of approximately 51.3% of her direct common stock holdings.

Key Takeaways

• Significant Holding Reduction: The insider liquidated more than half of her directly held common equity position.
• No Rule 10b5-1 Indicator: The filing does not denote execution under a pre-scheduled Rule 10b5-1 trading plan (aff10b5One is marked 0).
• Market Impact: While notable in percentage reduction, the total dollar value of $1.5M represents a small fraction of Corning's total market capitalization.