UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2022 Commission File Number: 0-25837 HEIDRICK & STRUGGLES INTERNATIONAL, INC. (Exact Name of Registrant as Specified in its Charter) (State or Other Jurisdiction of Incorporation or Organization) Delaware 36-2681268 (I.R.S. Employer Identification Number) 233 South Wacker Drive-Suite 4900 Chicag ...