Robert Half(RHI) - 2021 Q3 - Quarterly Report

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED September 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM to . Commission File Number 1-10427 ROBERT HALF INTERNATIONAL INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) 2884 ...