Equillium SVP/COO Christine Zedelmayer Exercises Options and Sells Shares Under 10b5-1 Plan

Christine Zedelmayer, Senior Vice President and COO of Equillium, Inc. (EQ), filed a Form 4 reporting significant stock transactions on May 27-28, 2026. She exercised multiple employee stock options totaling 95,833 shares at exercise prices ranging from $0.73 to $0.785 per share, acquiring the underlying common stock. Concurrently, she sold 95,833 shares at market prices between $2.70 and $2.98 per share, resulting in net sales of approximately 95,833 shares. The sales were executed pursuant to a Rule 10b5-1 trading plan adopted on August 27, 2025. Following these transactions, Zedelmayer's direct ownership decreased to 62,586 shares of common stock. The transactions represent a substantial disposition of equity by a key executive through a pre-planned trading arrangement.