United States Securities and Exchange Commission Washington, D.C. 20549 Form 10-K Annual Report Pursuant to Section 13 or 15(d) of the Securities Act of 1934 For the fiscal year endedDecember 31, 2022 Commission File Number1-13145 Jones Lang LaSalle Incorporated (Exact name of registrant as specified in its charter) Maryland 36-4150422 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 200 East Randolph Drive Chicago, IL 60601 (Address of principal executive ...