Form 4 Filing for BARRETT BUSINESS SERVICES INC

This filing details stock transactions by Thomas J. Carley, a director at BARRETT BUSINESS SERVICES INC (BBSI). On July 1, 2026, Carley disposed of 2,344 Restricted Stock Units (RSUs) which vested on the same date and were settled by delivery of common stock. Additionally, he acquired 2,782 RSUs that vest on July 1, 2027. The RSUs represent a contingent right to receive shares of the Issuer's common stock. In a separate non-derivative transaction, 2,344 shares of Common Stock were acquired on July 1, 2026. Following these transactions, Carley holds 97,036 shares of common stock directly. He also has 12,008 shares of common stock held indirectly by his spouse. The filing indicates that the owner is not subject to Section 16.