CRA International EVP & General Counsel Jonathan Yellin's Stock Transactions and Equity Holdings

This Form 4 filing reports equity transactions by Jonathan D. Yellin, EVP and General Counsel of CRA International, Inc. (CRAI), on April 11, 2026. The filing shows Yellin received 316.206 and 555.6902 shares of common stock through the vesting of restricted stock units (RSUs) at $0 cost. Concurrently, he sold 11.206 and 19.6902 shares at $163.80 per share, and disposed of 90 and 158 shares for tax withholding purposes at the same price. Following these transactions, Yellin's direct holdings in CRAI common stock totaled 15,295 shares. The filing also details Yellin's remaining equity holdings, including multiple RSU grants with various vesting schedules (ranging from 2026-2027) totaling approximately 4,265 units, and two stock option grants from 2017 and 2018 with exercise prices of $44.87 and $47.45 respectively.