Form 4 Filing for Adaptive Biotechnologies Corp

This filing details transactions made by LO FRANCIS, Chief People Officer of Adaptive Biotechnologies Corp, on April 8, 2026. Francis acquired 2,344 shares of Common Stock at $3.99 per share and disposed of 22,564 shares at a weighted average price of $15.07. These transactions were executed under a Rule 10b5-1 trading plan. Additionally, Francis exercised stock options for 2,344 shares, with the options vesting partially on March 4, 2025, and the remainder vesting monthly thereafter. Following these transactions, Francis directly holds 271,154 shares and indirectly holds 2,500 shares through their spouse, You Jin Lee. The filing also notes the exercise price for the stock options was $3.99, and the options expire on March 4, 2034.