Form 4 Filing for CRA INTERNATIONAL, INC. - Officer Transaction

This filing details a transaction by Brian Langan, Executive Vice President and Chief Strategy and Business Transformation Officer of CRA INTERNATIONAL, INC. On April 9, 2026, Mr. Langan acquired 911 Restricted Stock Units (RSUs) with a transaction value of $0. The RSUs represent a contingent right to receive one share of the Issuer's common stock. These RSUs vest in four equal annual installments, with a portion beginning on April 9, 2027, and another portion, including dividend equivalent rights, beginning on August 4, 2026. Post-transaction, Mr. Langan holds 911 RSUs. The filing also notes that vested RSUs may be paid in cash, shares of common stock, or a combination thereof, subject to tax withholding.