Orion Office REIT Inc. Announces Fourth Quarter 2021 Earnings Release and Conference Call Date

Orion Office REIT Inc. (NYSE: ONL) (“Orion”), a real estate investment trust focused on single-tenant net lease mission-critical suburban office properties located across the U.S., announced today that it will release financial results for the fourth quarter and full-year 2021 after market close on Thursday, March 24^th, 2022.

Webcast and Conference Call Information

Orion will host a webcast and conference call to review its financial results at 5:00 p.m. ET on Thursday, March 24^th, 2022. The webcast and call will be led by Paul McDowell, Chief Executive Officer and President, and Gavin Brandon, Chief Financial Officer, Executive Vice President and Treasurer. To participate, the webcast can be accessed live by visiting the “Investors” section of Orion’s website at https://www.onlreit.com/investors. To join the conference call, callers from the United States and Canada should dial 1-877-407-3982, and international callers should dial 1-201-493-6780, ten minutes prior to the scheduled call time.

Replay Information

A replay of the webcast may be accessed via the Internet by visiting the “Investors” section of Orion’s website at https://www.onlreit.com/investors. The conference call replay will be available after 8:00 p.m. ET on Thursday, March 24^th, 2022 through 11:59 a.m. ET on Thursday, April 7^th, 2022. To access the replay, callers may dial 1-844-512-2921 (domestic) or 1-412-317-6671 (international) and use passcode, 13726911.

About Orion Office REIT Inc.

Orion Office REIT Inc. is an internally-managed real estate investment trust engaged in the ownership, acquisition and management of a diversified portfolio of mission-critical and headquarters office buildings located in high-quality suburban markets across the U.S. and leased primarily on a single-tenant net lease basis to creditworthy tenants. The company was founded on July 1, 2021, spun-off from Realty Income Corporation (NYSE: O) on November 12, 2021 and began trading on the New York Stock Exchange on November 15, 2021. The company is headquartered in Phoenix, Arizona and has an office in New York, New York. For additional information on the company and its properties, please visit onlreit.com.

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