ROBERT HALF INC

The enclosed proxy is solicited on behalf of the Board of Directors (sometimes referred to as the “Board”) of Robert Half Inc., a Delaware corporation (the “Company”), the principal executive offices of which are located at 2884 Sand Hill Road, Suite 200, Menlo Park, California 94025. We are making this proxy statement and the enclosed proxy available to the Company’s stockholders beginning on April 12, 2024. The proxy is solicited for use at the annual meeting of stockholders (the “Meeting”) to be held online this year via live audiocast at www.virtualshareholdermeeting.com/RHI2024 at 10:00 a.m. PDT on Wednesday, May 15, 2024. Only stockholders of record on March 25, 2024, will be entitled to notice of, and to vote at, the Meeting and any adjournment of the Meeting. Each share is entitled to one vote. At the close of business on March 25, 2024, the record date, the Company had outstanding and entitled to vote 105,117,161 shares of its common stock, $.001 par value (“Common Stock”).