O: 10-Q financial filing

o-20260930 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 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, 2026 or ☐ Transition report pursuant to section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 1-13374 REALTY INCOME CORPORATION (Exact name of registrant as specified in its charter) Maryland 33-0580106 (State or Other Jurisdiction of Incorporation or Organization) (IRS Employer Identification Number) 11995 El Camino Real , San Diego , California 92130 (Address of Principal Executive Offices) Registrant’s telephone number, including area code: ( 858 ) 284-5000 Securities registered pursuant to Section 12(b) of the Act: Title of Each Class Trading Symbol(s) Name of Each Exchange On Which Registered Common Stock, $0.01 Par Value O New York Stock Exchange 1.125% Notes due 2027 O27A New York Stock Exchange 1.875% Notes due 2027 O27B New York Stock Exchange 5.000% Notes due 2029 O29B New York Stock Exchange 1.625% Notes due 2030 O30 New York Stock Exchange 4.875% Notes due 2030 O30B New York Stock Exchange 5.750% Notes due 2031 O31A New York Stock Exchange 3.375% Notes due 2031 O31B New York Stock Exchange 3.625% Notes due 2032 O32A New York Stock Exchange 1.750% Notes due 2033 O33A New York Stock Exchange 5.125% Notes due 2034 O34 New York Stock Exchange 3.875% Notes due 2035 O35B New York Stock Exchange 6.000% Notes due 2039 O39 New York Stock Exchange 5.250% Notes due 2041 O41 New York Stock Exchange 2.500% Notes due 2042 O42 New York Stock Exchange Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 dur