Zhang John Z

Zhang John Z, SVP & GM of Display & Corning Asia, has demonstrated a clear selling bias in his transactions involving Corning Inc. (GLW) over the past two years, according to SEC Form 4 filings. Since February 2024, Zhang has executed 23 trades exclusively in GLW, with total sales reaching $1.57 million compared to $424,983 in purchases. His most significant sale occurred on February 18, 2025, when he disposed of shares worth $744,757, followed by a $211,562 sale on February 15, 2024. The selling activity has intensified recently, with four transactions in February 2026 alone, including a $204,764 sale on February 12 and a $124,163 disposition on February 9. Zhang’s only recorded buy occurred on February 18, 2025, when he acquired $424,983 worth of GLW shares, but this was offset by a same-day sale of nearly double that amount. The transactions appear to follow a pattern of periodic disposals, often clustered around February each year, suggesting potential stock-based compensation vesting events. Notably, multiple filings with zero-dollar values indicate adjustments or non-monetary transactions, such as awards or holdings updates. While Zhang maintains a long-term position in GLW, his consistent selling activity—particularly the recent unbroken streak of disposals—reflects a reduction in his stake rather than accumulation.