<Page> ================================================================================ SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ---------- FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ---------- MARCH 5, 2003 (DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED)) iSTAR FINANCIAL INC. (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER) MARYLAND 1-15371 95-6881527 (STATE OR OTHER JURISDICTION (COMMISSION (IRS EMPLOYER OF INCORPORATION) FILE NUMBER) IDENTIFICATION NUMBER) 1114 AVENUE OF THE AMERICAS, 27TH FLOOR NEW YORK, NEW YORK 10036 (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE) (212) 930-9400 (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE) <Page> ITEM 5. OTHER EVENTS Attached as Exhibit 99.1 to this report is a supplemental investor presentation. ITEM 7. EXHIBITS 99.1 Supplemental presentation. Page 2 <Page> SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized. iSTAR FINANCIAL INC. Date: March 5, 2003 By: /s/ Jay Sugarman ---------------- Jay Sugarman Chairman and Chief Executive Officer Page 3