Table of Contents 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 EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. (Exact name of registrant as specified in its charter) MARYLAND (State or other jurisdiction of Incorporation or Organization ...

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, 2022 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. (Exact name of registrant as specified in its charter) MARYLAND 13-3147497 (State or other jurisdiction of (I.R.S. emp ...

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 June 30, 2022 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. (Exact name of registrant as specified in its charter) MARYLAND 13-3147497 (State or other jurisdiction of (I.R.S. employer ...

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 March 31, 2022 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of (I.R.S. employer incorporation or o ...

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. (Exact name of registrant as specified in its charter) MARYLAND (State or other jurisdiction of Incorporation or Organization) 60 Cutter Mill Road, Great Neck, New York (Address of principal executive offices) Registrant's telephone number, including area code: (516) 466-3100 Securities registered pursuant to Section ...

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, 2021 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of (I.R.S. employer incorporation ...

Table of Contents (Exact name of registrant as specified in its charter) MARYLAND 13-3147497 (State or other jurisdiction of (I.R.S. employer 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 June 30, 2021 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. ...

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 March 31, 2021 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. (Exact name of registrant as specified in its charter) MARYLAND 13-3147497 (State or other jurisdiction of (I.R.S. employer incorporation or ...

Table of Contents 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 EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 Commission File Number 001-09279 ONE LIBERTY PROPERTIES, INC. (Exact name of registrant as specified in its charter) MARYLAND (State or other jurisdiction of Incorporation or Organization) 13-3147497 (I.R.S. employer Identification No.) 60 Cutter Mill Road, Great Neck, New York (A ...