Exhibit 99.2                                                

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						Q3 2023 SUPPLEMENTAL INFORMATION

Orion Supplemental Information
September 30, 2023

Section			Page
About the Data			3
Forward-Looking Statements			4
Company Overview			6
Balance Sheets			8
Statements of Operations			9
Funds From Operations (FFO), Core FFO and Funds Available for Distribution (FAD)			10
EBITDA, EBITDAre and Adjusted EBITDA			11
Capital Structure			12
Debt Detail			13
Ratio Analysis			14
Credit Facility Revolver Covenants			15
Net Operating Income (NOI) and Cash NOI			16
Leasing Activity			17
Vacant Property Operating Expenses			18
Dispositions			19
Diversification Statistics: Real Estate Portfolio			20
Tenants Comprising Over 1% of Annualized Base Rent			21
Tenant Industry Diversification			22
Property Geographic Diversification			23
Lease Expirations			24
Lease Summary			25
Full Portfolio			26
Unconsolidated Joint Venture Investment Summary			28
Definitions			29

Orion Office REIT Inc. | WWW.ONLREIT.COM | 2

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						Q3 2023 SUPPLEMENTAL INFORMATION

About the Data

This data and other information described herein are as of and for the three months ended September 30, 2023, unless otherwise indicated. Future performance may not be consistent with past performance and is subject to change and inherent risks and uncertainties. This information should be read in conjunction with the consolidated and combined financial statements and the Management's Discussion and Analysis of Financial Condition and Results of Operations sections contained in Orion Office REIT Inc.'s (the "Company," "Orion," "us," "our" and "we") Quarterly Reports on Form 10-Q for the periods ended September 30, 2023, June 30, 2023 and March 31, 2023 and Annual Report on Form 10-K for the year ended December 31, 2022.

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						Q3 2023 SUPPLEMENTAL INFORMATION

Forward-Looking Statements

Information set forth herein includes “forward-looking statements” which reflect the Company's expectations and projections regarding future events and plans, future financial condition, results of operations, liquidity and business, including leasing and occupancy, acquisitions, dispositions, rent receipts, expected borrowings and financing costs and the payment of future dividends. Generally, the words "anticipates," "assumes," "believes," "continues," "could," "estimates," "expects," "goals," "intends," "may," "plans," "projects," "seeks," "should," "targets," "will," "guidance," variations of such words and similar expressions identify forward-looking statements. These forward-looking statements are based on information currently available to the Company and involve a number of known and unknown assumptions and risks, uncertainties and other factors, which may be difficult to predict and beyond the Company's control, that could cause actual events and plans or could cause the Company's business, financial condition, liquidity and results of operations to differ materially from those expressed or implied in the forward-looking statements. Further, information regarding historical rent collections should not serve as an indication of future rent collections.

The following factors, among others, could cause actual results to differ materially from those set forth in the forward-looking statements:

•the risk of rising interest rates, including that our borrowing costs may increase and we may be unable to refinance our debt obligations on favorable terms and in a timely manner, or at all;

•the risk of inflation, including that our operating costs, such as insurance premiums, utilities, real estate taxes, capital expenditures and repair and maintenance costs, may rise;

•conditions associated with the global market, including an oversupply of office space, tenant credit risk and general economic conditions and geopolitical conditions;

•the extent to which changes in workplace practices and office space utilization, including remote work arrangements, will continue and the impact that may have on demand for office space at our properties;

•our ability to acquire new properties and sell non-core assets on favorable terms and in a timely manner, or at all;

•our ability to comply with the terms of our credit agreements or to meet the debt obligations on our properties, including our ability to satisfy the conditions to extend our credit facility revolver;

•our ability to access the capital markets to raise additional equity or refinance maturing debt on favorable terms and in a timely manner, or at all;

•changes in the real estate industry and in performance of the financial markets and interest rates and our ability to effectively hedge against interest rate changes;

•the risk of tenants defaulting on their lease obligations, which is heightened due to our focus on single tenant properties;

•our ability to renew leases with existing tenants or re-let vacant space to new tenants on favorable terms and in a timely manner, or at all;

•the cost of rent concessions, tenant improvement allowances and leasing commissions;

•the potential for termination of existing leases pursuant to tenant termination rights;

•the amount, growth and relative inelasticity of our expenses;

•risks associated with the ownership and development of real property;

•risks accompanying the management of OAP/VER Venture, LLC, our unconsolidated joint venture, in which we hold a non-controlling ownership interest;

•our ability to close pending real estate transactions, which may be subject to conditions that are outside of our control;

•our ability to accurately forecast the payment of future dividends on our common stock, and the amount of such dividend;

•risks associated with acquisitions, including the risk that we may not be in a position, or have the opportunity in the future, to make suitable property acquisitions on advantageous terms and/or that such acquisitions will fail to perform as expected;

•risks associated with the fact that we have a limited operating history and our future performance is difficult to predict;

•our properties may be subject to impairment charges;

•risks resulting from losses in excess of insured limits or uninsured losses;

•risks associated with the potential volatility of our common stock; and

•the risk that we may fail to maintain our qualification as a REIT.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 4

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						Q3 2023 SUPPLEMENTAL INFORMATION

Additional factors that may affect future results are contained in the Company's filings with the SEC, which are available at the SEC’s website at www.sec.gov. The Company disclaims any obligation to publicly update or revise any forward-looking statements, whether as a result of changes in underlying assumptions or factors, new information, future events or otherwise, except as required by law.

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						Q3 2023 SUPPLEMENTAL INFORMATION

Company Overview (unaudited)

Orion is a real estate company incorporated in the state of Maryland on July 1, 2021, which has been operating in a manner so as to qualify and has elected to be taxed as a real estate investment trust ("REIT") for U.S. federal income tax purposes, commencing with our initial taxable year ended December 31, 2021.

Orion is an internally managed REIT engaged in the ownership, acquisition and management of a diversified portfolio of mission-critical regional and corporate headquarters office buildings in high-quality suburban markets across the U.S. and leased primarily on a single-tenant net lease basis to creditworthy tenants. As of September 30, 2023, Orion owned and operated a portfolio of 79 office properties totaling approximately 9.3 million leasable square feet located within 29 states. In addition, the Company owns a 20% equity interest in one Unconsolidated Joint Venture with an affiliate of Arch Street Capital Partners, which, as of September 30, 2023, owned a portfolio consisting of six office properties totaling approximately 1.0 million leasable square feet located within six states. As of September 30, 2023, approximately 72.0% of the Company's Annualized Base Rent was from Investment-Grade Tenants, the Company's Occupancy Rate was 80.5%, or 88.7% adjusted for properties that have been sold following quarter end or are currently under agreement to be sold, and the Weighted Average Remaining Lease Term was 3.9 years.

The Company's Annualized Base Rent as of September 30, 2023 was approximately $144.9 million. The top tenants, tenant industries and geographic locations of the Company's properties are outlined in the following sections: "Tenants Comprising Over 1% of Annualized Base Rent," "Tenant Industry Diversification," and "Property Geographic Diversification," respectively.

Tenants, Trademarks and Logos

Orion is not affiliated or associated with, is not endorsed by, does not endorse, and is not sponsored by or a sponsor of the tenants or of their products or services pictured or mentioned. The names, logos and all related product and service names, design marks and slogans are the trademarks or service marks of their respective companies.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 6

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						Q3 2023 SUPPLEMENTAL INFORMATION

Company Overview (cont.)

Senior Management						Board of Directors
Paul H. McDowell, Chief Executive Officer, President						Reginald H. Gilyard, Non-Executive Chairman, Independent Director
Gavin B. Brandon, Executive Vice President, Chief Financial Officer and Treasurer						Kathleen R. Allen, Ph.D., Independent Director
Christopher H. Day, Executive Vice President, Chief Operating Officer						Richard J. Lieb, Independent Director
Gary E. Landriau, Executive Vice President, Chief Investment Officer						Gregory J. Whyte, Independent Director
Paul C. Hughes, General Counsel and Secretary						Paul H. McDowell, Chief Executive Officer, President and Director
Revea L. Schmidt, Senior Vice President, Chief Accounting Officer

Corporate Offices and Contact Information

2398 E. Camelback Road, Suite 1060						19 West 44th Street, Suite 1401
Phoenix, AZ 85016						New York, NY 10036
602-698-1002
www.ONLREIT.com

 

Trading Symbol: ONL

 

Stock Exchange Listing: New York Stock Exchange

 

Transfer Agent

Computershare Trust Company, N.A.
462 South 4th Street, Suite 1600
Louisville, KY 40202
855-866-0787

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						Q3 2023 SUPPLEMENTAL INFORMATION

Balance Sheets (unaudited, in thousands)

						September 30, 2023						June 30, 2023						March 31, 2023						December 31, 2022						September 30, 2022
Assets
Real estate investments, at cost:
Land						$	227,203					$	229,105					$	236,966					$	238,225					$	243,726
Buildings, fixtures and improvements						1,106,383						1,111,646						1,127,590						1,128,400						1,137,177
Total real estate investments, at cost						1,333,586						1,340,751						1,364,556						1,366,625						1,380,903
Less: accumulated depreciation						156,904						149,147						141,093						133,379						126,097
Total real estate investments, net						1,176,682						1,191,604						1,223,463						1,233,246						1,254,806
Accounts receivable, net						26,911						24,960						24,697						21,641						21,923
Intangible lease assets, net						144,304						161,885						182,629						202,832						223,528
Cash and cash equivalents						32,286						42,209						23,755						20,638						23,282
Real estate assets held for sale, net						3,818						16,251						2,502						2,502						6,383
Other assets, net						120,390						90,998						89,826						90,214						91,632
Total assets						$	1,504,391					$	1,527,907					$	1,546,872					$	1,571,073					$	1,621,554
Liabilities and Equity
Mortgages payable, net						$	352,683					$	352,509					$	352,337					$	352,167					$	351,994
Credit facility term loan, net						—						—						174,153						173,815						173,478
Credit facility revolver						175,000						175,000						—						—						31,000
Accounts payable and accrued expenses						30,570						22,326						19,957						26,161						22,038
Below-market lease liabilities, net						9,481						10,996						12,526						14,068						15,611
Distributions payable						5,578						5,670						5,666						5,664						5,664
Other liabilities, net						21,811						23,682						22,286						23,340						21,085
Total liabilities						595,123						590,183						586,925						595,215						620,870
Common stock						56						57						57						57						57
Additional paid-in capital						1,143,825						1,148,155						1,147,466						1,147,014						1,146,431
Accumulated other comprehensive income						986						3,026						4,540						6,308						7,057
Accumulated deficit						(237,026)						(214,929)						(193,516)						(178,910)						(154,273)
Total stockholders' equity						907,841						936,309						958,547						974,469						999,272
Non-controlling interest						1,427						1,415						1,400						1,389						1,412
Total equity						909,268						937,724						959,947						975,858						1,000,684
Total liabilities and equity						$	1,504,391					$	1,527,907					$	1,546,872					$	1,571,073					$	1,621,554

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						Q3 2023 SUPPLEMENTAL INFORMATION

Statements of Operations (unaudited, in thousands, except per share data)

												Three Months Ended
												September 30, 2023						June 30, 2023						March 31, 2023						December 31, 2022						September 30, 2022
Revenues:
Rental												$	48,876					$	51,824					$	49,990					$	50,097					$	51,580
Fee income from unconsolidated joint venture												200						200						200						197						189
Total revenues												49,076						52,024						50,190						50,294						51,769
Operating expenses:
Property operating												15,506						15,487						15,344						15,746						15,303
General and administrative												4,367						4,565						4,309						4,428						4,672
Depreciation and amortization												27,013						27,877						28,166						30,493						32,693
Impairments												11,403						11,819						3,754						12,198						44,801
Transaction related												101						150						105						277						194
Total operating expenses												58,390						59,898						51,678						63,142						97,663
Other (expenses) income:
Interest expense, net												(7,380)						(7,222)						(7,139)						(7,553)						(7,904)
Gain on disposition of real estate assets												18						—						—						1,293						1,059
Loss on extinguishment of debt, net												—						(504)						—						—						—
Other income, net												437						165						36						105						31
Equity in loss of unconsolidated joint venture, net												(108)						(95)						(123)						(272)						(157)
Total other (expenses) income, net												(7,033)						(7,656)						(7,226)						(6,427)						(6,971)
Loss before taxes												(16,347)						(15,530)						(8,714)						(19,275)						(52,865)
Provision for income taxes												(160)						(185)						(160)						282						(164)
Net loss												(16,507)						(15,715)						(8,874)						(18,993)						(53,029)
Net (income) loss attributable to non-controlling interest												(12)						(15)						(11)						23						(18)
Net loss attributable to common stockholders												$	(16,519)					$	(15,730)					$	(8,885)					$	(18,970)					$	(53,047)
Weighted-average shares outstanding - basic and diluted												56,543						56,680						56,642						56,644						56,635
Basic and diluted net loss per share attributable to common stockholders												$	(0.29)					$	(0.28)					$	(0.16)					$	(0.33)					$	(0.94)

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						Q3 2023 SUPPLEMENTAL INFORMATION

Funds From Operations (FFO), Core FFO and Funds Available for Distribution (FAD) (unaudited, in thousands, except per share data)

												Three Months Ended
												September 30, 2023						June 30, 2023						March 31, 2023						December 31, 2022						September 30, 2022
Net loss attributable to common stockholders												$	(16,519)					$	(15,730)					$	(8,885)					$	(18,970)					$	(53,047)
Adjustments:
Depreciation and amortization of real estate assets												26,988						27,852						28,142						30,475						32,674
Gain on disposition of real estate assets												(18)						—						—						(1,293)						(1,059)
Impairment of real estate												11,403						11,819						3,754						12,198						44,801
Proportionate share of Unconsolidated Joint Venture adjustments for items above, as applicable												463						463						462						465						460
FFO attributable to common stockholders												$	22,317					$	24,404					$	23,473					$	22,875					$	23,829
Transaction related												101						150						105						277						194
Amortization of deferred financing costs												933						1,059						1,049						1,068						1,067
Amortization of deferred lease incentives, net												(14)						100						101						80						36
Equity-based compensation												687						689						526						603						444
Loss on extinguishment of debt, net												—						504						—						—						—
Proportionate share of Unconsolidated Joint Venture adjustments for items above, as applicable												29						29						29						29						28
Core FFO attributable to common stockholders												$	24,053					$	26,935					$	25,283					$	24,932					$	25,598
Amortization of above and below market leases, net												(346)						(274)						(215)						(260)						(312)
Straight-line rental revenue												(1,369)						(2,275)						(2,684)						2,911						(699)
Unconsolidated Joint Venture basis difference amortization												113						114						133						259						258
Capital expenditures and leasing costs												(8,359)						(2,172)						(3,338)						(6,112)						(3,730)
Other adjustments, net												66						74						131						74						63
Proportionate share of Unconsolidated Joint Venture adjustments for the items above, as applicable												(40)						(41)						(40)						(54)						(59)
FAD attributable to common stockholders												$	14,118					$	22,361					$	19,270					$	21,750					$	21,119
Weighted-average shares outstanding - basic												56,543						56,680						56,642						56,644						56,635
Effect of weighted-average dilutive securities (1)												26						11						18						—						—
Weighted-average shares outstanding - diluted												56,569						56,691						56,660						56,644						56,635
FFO attributable to common stockholders per diluted share												$	0.39					$	0.43					$	0.41					$	0.40					$	0.42
Core FFO attributable to common stockholders per diluted share												$	0.43					$	0.48					$	0.45					$	0.44					$	0.45
FAD attributable to common stockholders per diluted share												$	0.25					$	0.39					$	0.34					$	0.38					$	0.37

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(1)Dilutive securities include unvested restricted stock units net of assumed repurchases in accordance with the treasury stock method and exclude performance-based restricted stock units for which the thresholds have not been met by the end of the applicable reporting period. Such dilutive securities are not included when calculating net loss per diluted share applicable to the Company for the periods presented above, as the effect would be antidilutive.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

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						Q3 2023 SUPPLEMENTAL INFORMATION

EBITDA, EBITDAre and Adjusted EBITDA (unaudited, in thousands)

												Three Months Ended
												September 30, 2023						June 30, 2023						March 31, 2023						December 31, 2022						September 30, 2022
Net loss attributable to common stockholders												$	(16,519)					$	(15,730)					$	(8,885)					$	(18,970)					$	(53,047)
Adjustments:
Interest expense												7,380						7,222						7,139						7,553						7,904
Depreciation and amortization												27,013						27,877						28,166						30,493						32,693
Provision for income taxes												160						185						160						(282)						164
Proportionate share of Unconsolidated Joint Venture adjustments for items above, as applicable												864						861						854						864						782
EBITDA												$	18,898					$	20,415					$	27,434					$	19,658					$	(11,504)
Gain on disposition of real estate assets												(18)						—						—						(1,293)						(1,059)
Impairment of real estate												11,403						11,819						3,754						12,198						44,801
EBITDAre												$	30,283					$	32,234					$	31,188					$	30,563					$	32,238
Transaction related												101						150						105						277						194
Amortization of above and below market leases, net												(346)						(274)						(215)						(260)						(312)
Amortization of deferred lease incentives, net												(14)						100						101						80						36
Loss on extinguishment of debt, net												—						504						—						—						—
Proportionate share of Unconsolidated Joint Venture adjustments for items above, as applicable												(7)						(8)						(7)						(8)						(7)
Adjusted EBITDA												$	30,017					$	32,706					$	31,172					$	30,652					$	32,149

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

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						Q3 2023 SUPPLEMENTAL INFORMATION

Capital Structure (unaudited, dollars and shares in thousands, except per share amounts)

						Common equity			34.3%
						Mortgages payable			41.9%
						Credit facility revolver (4)			20.6%
						Proportionate share of Unconsolidated Joint Venture Debt			3.2%

                            

Fixed vs. Variable Rate Debt

Fixed and Swapped to Fixed			100.0		%
Variable (4)			—		%

Orion Capitalization Table
															September 30, 2023
Common stock outstanding															55,780
Stock price															$	5.21
Implied Equity Market Capitalization															$	290,614
			Wtd. Avg. Maturity (Years)						Interest Rate (1)						September 30, 2023
Mortgages payable			3.4						4.97		%				$	355,000
Proportionate share of Unconsolidated Joint Venture Debt (2)			1.2						5.19		%				27,332
Total secured debt			3.2						4.99		%				$	382,332
Total unsecured credit facility revolver (3) (4)			2.6						3.92%						$	175,000
Total Principal Outstanding			3.0						4.65		%				$	557,332
Total Capitalization															$	847,946
Cash and cash equivalents															32,286
Restricted cash deposited with credit facility lenders															33,198
Proportionate share of Unconsolidated Joint Venture cash and cash equivalents															708
Enterprise Value															$	781,754
Net Debt/Enterprise Value															62.8		%
Net Debt/Gross Real Estate Investments															28.9		%
Fixed Charge Coverage Ratio															4.40x
Liquidity (5)															$	316,192
Net Debt/Annualized Adjusted EBITDA															4.09x

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(1)Interest rate for variable rate debt represents the interest rate in effect as of September 30, 2023.

(2)The Unconsolidated Joint Venture mortgages payable have a variable interest rate which is determined, at the election of the borrower, on the basis of Daily Simple SOFR or a base rate, in the case of a SOFR loan, plus 1.60% per annum, and in the case of a base rate loan, plus 0.50% per annum; however, the Unconsolidated Joint Venture has entered into an interest rate swap agreement which effectively fixes the interest rate on the mortgage notes at 5.19% per annum until May 27, 2024.

(3)Under the related loan agreements, these borrowings which are secured only by a pledge of equity interests are treated as unsecured indebtedness. The Company's otherwise unencumbered properties are part of the unencumbered property pool under the related loan agreements and therefore, generally are not available to simultaneously serve as collateral under other borrowings.

(4)The credit facility revolver matures on November 12, 2024 with an option to extend the maturity an additional 18 months to May 12, 2026. This table assumes exercise of the extension option. There was $175.0 million outstanding on the credit facility revolver as of September 30, 2023 and it is a variable rate facility with the interest rate determined, at the election of the borrower, on the basis of Daily Simple SOFR, Term SOFR or a base rate, in the case of a SOFR loan, plus 3.35% per annum, and in the case of a base rate loan, plus 2.25% per annum; however, the Company has entered into interest rate swap agreements which effectively fixes the interest rate on the notional amount of $175.0 million at 3.92% per annum until November 12, 2023. Upon the scheduled expiration of the interest rate swap agreements, the Company's borrowing cost on the credit facility revolver will no longer be effectively fixed, but rather will float and, therefore, the Company's borrowing cost on the credit facility revolver will immediately shift to prevailing short-term interest rates based on the benchmark and applicable margin described above, and the Company will be exposed to interest rate fluctuations on these borrowings.

(5)Liquidity represents cash and cash equivalents of $33.0 million, including the Company's pro rata share of cash from the Unconsolidated Joint Venture, as well as $250.0 million available capacity on our $425.0 million credit facility revolver as of September 30, 2023. Also includes $33.2 million of restricted cash deposited with the credit facility lenders that will, in accordance with the terms of the credit facility revolver, be used to prepay borrowings thereunder upon the scheduled expiration in November 2023 (or earlier termination) of the Company's interest rate swap agreements, and thereby create an equal amount of additional available capacity under the credit facility revolver.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

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						Q3 2023 SUPPLEMENTAL INFORMATION

Debt Detail (unaudited, dollars in thousands)

Principal Payments Due						Total						2023						2024						2025						Thereafter
Credit facility revolver (1)						$	175,000					$	—					$	—					$	—					$	175,000
Mortgages payable						355,000						—						—						—						355,000
Proportionate share of Unconsolidated Joint Venture debt						27,332						—						27,332						—						—
Total Principal Outstanding						$	557,332					$	—					$	27,332					$	—					$	530,000

Debt Type						Percentage of Principal Outstanding						Interest Rate						Weighted-Average Years to Maturity
Credit facility revolver (1)						31.4		%				3.92		%				2.6
Mortgages payable						63.7		%				4.97		%				3.4
Proportionate share of Unconsolidated Joint Venture debt						4.9		%				5.19		%				1.2
Total						100.0		%				4.65		%				3.0

Debt Type						Percentage of Principal Outstanding						Weighted-Average Interest Rate						Weighted-Average Years to Maturity
Total unsecured debt						31.4		%				3.92		%				2.6
Total secured debt						68.6		%				4.99		%				3.2
Total						100.0		%				4.65		%				3.0
Total fixed-rate and swapped to fixed-rate debt (1)						100.0		%				4.65		%				3.0
Total variable-rate debt (1)						—		%				N/A						N/A
Total						100.0		%				4.65		%				3.0

___________________________________

(1)The credit facility revolver matures on November 12, 2024 with an option to extend the maturity an additional 18 months to May 12, 2026. This table assumes exercise of the extension option. There was $175.0 million outstanding on the credit facility revolver as of September 30, 2023 and it is a variable rate facility with the interest rate determined, at the election of the borrower, on the basis of Daily Simple SOFR, Term SOFR or a base rate, in the case of a SOFR loan, plus 3.35% per annum, and in the case of a base rate loan, plus 2.25% per annum; however, the Company has entered into interest rate swap agreements which effectively fixes the interest rate on the notional amount of $175.0 million at 3.92% per annum until November 12, 2023. Upon the scheduled expiration of the interest rate swap agreements, the Company's borrowing cost on the credit facility revolver will no longer be effectively fixed, but rather will float and, therefore, the Company's borrowing cost on the credit facility revolver will immediately shift to prevailing short-term interest rates based on the benchmark and applicable margin described above, and the Company will be exposed to interest rate fluctuations on these borrowings.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 13

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						Q3 2023 SUPPLEMENTAL INFORMATION

Ratio Analysis (unaudited, dollars in thousands)

												Three Months Ended
												September 30, 2023						June 30, 2023						March 31, 2023						December 31, 2022						September 30, 2022
Interest Coverage Ratio
Interest Expense, excluding non-cash amortization (1)												$	6,818					$	6,529					$	6,453					$	6,852					$	7,131
Adjusted EBITDA (2)												30,017						32,706						31,172						30,652						32,149
Interest Coverage Ratio												4.40x						5.01x						4.83x						4.47x						4.51x
Fixed Charge Coverage Ratio
Interest Expense, excluding non-cash amortization (1)												$	6,818					$	6,529					$	6,453					$	6,852					$	7,131
Secured debt principal amortization												—						—						—						—						—
Total fixed charges												6,818						6,529						6,453						6,852						7,131
Adjusted EBITDA (2)												30,017						32,706						31,172						30,652						32,149
Fixed Charge Coverage Ratio												4.40x						5.01x						4.83x						4.47x						4.51x

___________________________________

(1)Refer to the Statements of Operations section for interest expense calculated in accordance with GAAP and to the Definitions section for the required reconciliation to the most directly comparable GAAP financial measure.

(2)Refer to the Statements of Operations section for net loss calculated in accordance with GAAP and to the EBITDAre and Adjusted EBITDA section for the required reconciliation to the most directly comparable GAAP financial measure.

						September 30, 2023						June 30, 2023						March 31, 2023						December 31, 2022						September 30, 2022
Net Debt Ratios
Net Debt (1)						$	491,140					$	514,418					$	532,850					$	536,122					$	564,292
Adjusted EBITDA (2)						120,068						130,824						124,688						132,210						128,596
Net Debt to Adjusted EBITDA Ratio						4.09x						3.93x						4.27x						4.06x						4.39x
Net Debt (1)						$	491,140					$	514,418					$	532,850					$	536,122					$	564,292
Gross Real Estate Investments (1)						1,698,387						1,716,594						1,734,559						1,743,969						1,766,600
Net Debt Leverage Ratio						28.9		%				30.0		%				30.7		%				30.7		%				31.9		%
Unencumbered Assets/Real Estate Assets
Unencumbered Gross Real Estate Investments (1)						$	1,092,464					$	1,112,811					$	1,131,272					$	1,141,035					$	1,165,310
Gross Real Estate Investments (1)						1,698,387						1,716,594						1,734,559						1,743,969						1,766,600
Unencumbered Asset Ratio						64.3		%				64.8		%				65.2		%				65.4		%				66.0		%

___________________________________

(1)Refer to the Balance Sheets section for total debt and real estate investments, at cost calculated in accordance with GAAP and to the Definitions section for the required reconciliation to the most directly comparable GAAP financial measure. The Company's otherwise unencumbered properties are part of the unencumbered property pool under the related loan agreements and therefore, generally are not available to simultaneously serve as collateral under other borrowings.

(2)Adjusted EBITDA for the quarters ended September 30, 2023, June 30, 2023, March 31, 2023, and September 30, 2022 has been annualized for the purpose of this calculation.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 14

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						Q3 2023 SUPPLEMENTAL INFORMATION

Credit Facility Revolver Covenants (unaudited)

The following is a summary of financial covenants for the Company's credit facility revolver as defined and calculated per the terms of the facility's credit agreement. These calculations are presented to investors to show the Company's compliance with the financial covenants and are not measures of our liquidity or performance. As of September 30, 2023, the Company believes it is in compliance with these covenants based on the covenant limits and calculations in place at that time.

Credit Facility Revolver Financial Covenants

Required

September 30, 2023

Ratio of total indebtedness to total asset value

≤ 60%

38.3%

Ratio of adjusted EBITDA to fixed charges

≥ 1.5x

4.23x

Ratio of secured indebtedness to total asset value

≤ 40%

25.0%

Ratio of unsecured indebtedness to unencumbered asset value

≤ 60% (1)

14.9%

Ratio of unencumbered adjusted NOI to unsecured interest expense

≥ 2.00x

10.74x

Unencumbered asset value

≥ $600.0 million

$832.5 million

___________________________________

(1)If the ratio of unsecured indebtedness to unencumbered asset value exceeds 35% as of the end of two consecutive fiscal quarters, the Company will be required, within 90 days and subject to cure rights, to grant the administrative agent a first priority lien on all the properties included in the pool of unencumbered assets (other than properties identified for disposition by the Company so long as such properties are sold within one year of such identification).

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 15

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						Q3 2023 SUPPLEMENTAL INFORMATION

Net Operating Income (NOI) and Cash NOI (unaudited, dollars in thousands)

												Three Months Ended
												September 30, 2023						June 30, 2023						March 31, 2023						December 31, 2022						September 30, 2022
Rental revenue:
Cash rental revenue												35,491						36,410						36,104						37,209						38,987
Fixed reimbursements												1,737						1,399						1,384						1,406						1,428
Variable reimbursements												9,203						10,679						8,482						9,081						9,027
Straight-line rental revenue												1,369						2,275						2,684						(2,911)						699
Amortization of above and below market leases, net												346						274						215						260						312
Amortization of deferred lease incentives, net												14						(100)						(101)						(80)						(36)
Other rental revenue												716						887						1,222						5,132						1,163
Total rental revenue												48,876						51,824						49,990						50,097						51,580
Property operating expense												(15,506)						(15,487)						(15,344)						(15,746)						(15,303)
NOI												33,370						36,337						34,646						34,351						36,277
Adjustments:
Straight-line rental revenue												(1,369)						(2,275)						(2,684)						2,911						(699)
Amortization of above and below market leases, net												(346)						(274)						(215)						(260)						(312)
Amortization of deferred lease incentives, net												(14)						100						101						80						36
Other non-cash adjustments												47						48						48						51						50
Proportionate share of Unconsolidated Joint Venture Cash NOI												863						861						862						833						848
Cash NOI												$	32,551					$	34,797					$	32,758					$	37,966					$	36,200

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 16

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						Q3 2023 SUPPLEMENTAL INFORMATION

Leasing Activity (unaudited, dollars and square feet in thousands)

During the nine months ended September 30, 2023, we entered into new and renewal leases as summarized in the following table:

						Nine Months Ended September 30, 2023
						New Leases						Renewals						Total
Rentable square feet leased						18						111						129
Weighted average rental rate change (cash basis) (1) (2)						(19.8)		%				17.3		%				13.5		%
Tenant leasing costs and concession commitments (3)						$	748					$	1,065					$	1,813
Tenant leasing costs and concession commitments per rentable square foot						$	41.38					$	9.62					$	14.09
Weighted average lease term (by rentable square feet) (years)						7.8						9.8						9.5
Tenant leasing costs and concession commitments per rentable square foot per year						$	5.29					$	0.98					$	1.48

____________________________________

(1)Represents weighted average percentage increase or decrease in (i) the annualized monthly cash amount charged to the applicable tenants (including monthly base rent receivables and certain contractually obligated reimbursements by the applicable tenants, which may include estimates) as of the commencement date of the new lease term (excluding any full or partial rent abatement period) compared to (ii) the annualized monthly cash amount charged to the applicable tenants (including the monthly base rent receivables and certain contractually obligated reimbursements by the applicable tenants, which may include estimates) as of the expiration date of the prior lease term. If a space has been vacant for more than 12 months prior to the execution of a new lease, the lease will be excluded from this calculation.

(2)Excludes one new lease for approximately 4,000 square feet of space that had been vacant for more than 12 months at the time the new lease was executed.

(3)Includes commitments for tenant improvement allowances and base building allowances, leasing commissions and free rent (includes estimates of property operating expenses, where applicable).

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 17

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						Q3 2023 SUPPLEMENTAL INFORMATION

Vacant Property Operating Expenses (unaudited, in thousands for the nine months ended September 30, 2023)

						Square Feet						Total Expenses
Fully vacant - full period						637						$2,866
Fully vacant - disposed and partial period (1)						1,085						3,565
Fully vacant subtotal (2)						1,722						$6,431
Partially vacant properties (3)						345						1,778
Total						2,067						$8,209

____________________________________

(1)Represents eight properties that became vacant during the nine months ended September 30, 2023 and one vacant property that was disposed during the nine months ended September 30, 2023.

(2)The Company had 13 fully vacant properties as of September 30, 2023, including the six property former Walgreens campus in Deerfield, Illinois. All expenses are a component of property operating expenses in the consolidated statements of operations.

(3)The Company does not record property operating expenses at the suite level; therefore, the total expenses for the nine months ended September 30, 2023 for partially vacant properties are estimated by multiplying the vacant square feet of the partially vacant properties by the total annualized expenses per square foot for fully vacant properties and prorating for the nine months ended September 30, 2023.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 18

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						Q3 2023 SUPPLEMENTAL INFORMATION

Dispositions (unaudited, square feet and dollars in thousands)

The following table summarizes the Company's disposition activity during the three and nine months ended September 30, 2023.

Date Sold

Property Location

Square Feet

Gross Sale Price

Lease Term (Years)

07/06/2023

Berkeley, MO

227

$9,650

Vacant

08/10/2023

New Port Richey, FL

47

4,400

Vacant

Total

274

$14,050

The following table summarizes the Company's disposition activity following the nine months ended September 30, 2023.

Date Sold

Property Location

Square Feet

Gross Sale Price

Lease Term (Years)

10/23/2023

Schaumburg, IL

178

$1,375

Vacant

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 19

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						Q3 2023 SUPPLEMENTAL INFORMATION

Diversification Statistics: Real Estate Portfolio (unaudited, percentages based on portfolio Annualized Base Rent as of September 30, 2023, other than occupancy rate which is based on square footage as of September 30, 2023)

___________________________________________________

___________________________________________________

___________________________________________________

___________________________________________________

Statistics (square feet in thousands)
Operating Properties						79
Unconsolidated Joint Venture Properties						6
Rentable Square Feet						9,459
Occupancy Rate						80.5		%
Weighted Average Remaining Lease Term						3.9
Investment-Grade Tenants						72.0		%
NN leases						69.6		%
NNN leases						11.9		%

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 20

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						Q3 2023 SUPPLEMENTAL INFORMATION

Tenants Comprising Over 1% of Annualized Base Rent (unaudited, square feet and dollars in thousands as of September 30, 2023)

Tenant						Number of Leases						Leased Square Feet						Square Feet as a % of Total Portfolio						Annualized Base Rent						Annualized Base Rent as a % of Total Portfolio						Credit Rating
General Services Administration						16						734						7.8		%				$	19,283					13.3		%				AA+
Merrill Lynch						1						482						5.1		%				12,224						8.4		%				A-
Highmark Western & Northeastern NY						1						430						4.5		%				8,450						5.8		%				NR
RSA Security						2						328						3.5		%				7,221						5.0		%				BBB
Cigna/Express Scripts						3						365						3.9		%				6,856						4.7		%				A-
Coterra Energy						1						309						3.3		%				5,762						4.0		%				BBB
Novartis						1						176						1.9		%				4,995						3.4		%				AA-
MDC Holdings Inc.						1						144						1.5		%				4,299						3.0		%				BBB-
T-Mobile						3						217						2.3		%				3,937						2.7		%				BBB
Charter Communications						2						264						2.8		%				3,745						2.6		%				BB+
Top Ten Tenants						31						3,449						36.6		%				76,772						52.9		%
Remaining Tenants:
Banner Life Insurance						1						116						1.2		%				3,581						2.5		%				A
Inform Diagnostics						1						172						1.8		%				3,551						2.5		%				NR
Encompass Health						1						65						0.7		%				3,436						2.4		%				BB-
Collins Aerospace						1						207						2.2		%				3,369						2.3		%				BBB+
Home Depot/HD Supply						2						153						1.6		%				3,120						2.2		%				A
AT&T						1						203						2.1		%				2,921						2.0		%				BBB
Linde						1						175						1.9		%				2,714						1.9		%				A
Maximus						2						168						1.8		%				2,549						1.8		%				BB+
Citigroup						1						64						0.7		%				2,459						1.7		%				BBB+
CVS/Aetna						1						127						1.3		%				2,259						1.6		%				BBB
Hasbro						1						136						1.4		%				2,243						1.5		%				BBB
Ingram Micro						1						200						2.1		%				2,197						1.5		%				BB-
Novus International						1						96						1.0		%				2,022						1.4		%				NR
Pulte Mortgage						1						95						1.0		%				2,005						1.4		%				BBB
NetJets						1						140						1.5		%				1,990						1.4		%				NR
Elementis						1						66						0.7		%				1,980						1.4		%				NR
FedEx (1)						2						352						3.7		%				1,744						1.2		%				BBB
General Electric						1						152						1.6		%				1,663						1.1		%				BBB+
AGCO						1						126						1.3		%				1,607						1.1		%				BBB-
Intermec						1						81						0.9		%				1,459						1.0		%				A
Abbott Laboratories						1						131						1.4		%				1,379						1.0		%				AA-
Total						55						6,474						68.5		%				$	127,020					87.8		%

____________________________________

(1)Includes one lease where FedEx was in holdover tenancy at the end of the quarter and holdover rent has been excluded from the Annualized Base Rent calculation.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 21

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						Q3 2023 SUPPLEMENTAL INFORMATION

Tenant Industry Diversification (unaudited, square feet and dollars in thousands as of September 30, 2023)

Industry						Number of Leases (1)						Leased Square Feet						Leased Square Feet as a % of Total Portfolio						Annualized Base Rent						Annualized Base Rent as a % of Total Portfolio
Health Care Equipment & Services						12						1,109						11.7		%				$	21,354					14.7		%
Government & Public Services						18						778						8.2		%				19,831						13.7		%
Financial Institutions						3						616						6.5		%				15,479						10.7		%
Insurance						3						600						6.3		%				13,292						9.2		%
Capital Goods						10						845						8.9		%				12,572						8.7		%
Software & Services						6						638						6.7		%				11,668						8.0		%
Consumer Durables & Apparel						3						375						4.0		%				8,546						5.9		%
Telecommunication Services						5						419						4.4		%				6,858						4.7		%
Materials						4						366						3.9		%				5,852						4.0		%
Energy						1						309						3.3		%				5,762						4.0		%
Top Ten Tenant Industries						65						6,055						63.9		%				121,214						83.6		%
Remaining Tenant Industries:
Pharmaceuticals, Biotechnology & Life Sciences						1						176						1.9		%				4,995						3.4		%
Commercial & Professional Services						10						295						3.1		%				4,719						3.3		%
Transportation						5						541						5.7		%				4,490						3.1		%
Media & Entertainment						2						264						2.8		%				3,745						2.6		%
Retailing						3						157						1.7		%				3,196						2.2		%
Food, Beverage & Tobacco						1						96						1.0		%				2,022						1.4		%
Utilities						1						26						0.3		%				394						0.3		%
Real Estate						1						4						—		%				86						0.1		%
Consumer Services						2						5						0.1		%				54						—		%
Total						91						7,619						80.5		%				$	144,915					100.0		%

__________________________________

(1) The Company has certain properties that are subject to multiple leases.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 22

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						Q3 2023 SUPPLEMENTAL INFORMATION

Property Geographic Diversification (unaudited, square feet and dollars in thousands as of September 30, 2023)

Location						Number of Properties						Rentable Square Feet						Square Feet as a % of Total Portfolio						Annualized Base Rent						Annualized Base Rent as a % of Total Portfolio
Texas						15						1,353						14.3		%				$	24,239					16.7		%
New Jersey						3						724						7.6		%				19,199						13.2		%
New York						5						781						8.2		%				13,691						9.4		%
Kentucky						2						458						4.8		%				10,299						7.1		%
Colorado						4						571						6.0		%				7,967						5.5		%
Massachusetts						2						378						4.0		%				7,933						5.5		%
Oklahoma						3						585						6.2		%				6,791						4.7		%
California						3						244						2.6		%				5,310						3.7		%
Missouri						3						303						3.2		%				4,917						3.4		%
Maryland						2						236						2.5		%				4,646						3.2		%
Top Ten States						42						5,633						59.4		%				104,992						72.4		%
Remaining States:
Tennessee						4						240						2.5		%				4,615						3.2		%
Georgia						3						284						3.0		%				4,601						3.2		%
Virginia						2						240						2.5		%				4,523						3.1		%
Ohio						4						500						5.3		%				3,520						2.4		%
Rhode Island						2						206						2.2		%				3,040						2.1		%
South Carolina						1						64						0.7		%				2,459						1.7		%
Wisconsin						1						155						1.6		%				2,299						1.6		%
Arizona						2						215						2.3		%				2,216						1.5		%
Illinois						9						916						9.7		%				2,174						1.5		%
Iowa						2						92						1.0		%				1,955						1.4		%
Nebraska						2						180						1.9		%				1,563						1.1		%
Pennsylvania						2						233						2.5		%				1,316						0.9		%
Oregon						1						69						0.7		%				1,142						0.8		%
West Virginia						1						63						0.7		%				1,130						0.8		%
Kansas						2						196						2.1		%				1,044						0.7		%
Idaho						2						45						0.5		%				1,035						0.7		%
Indiana						1						83						0.9		%				570						0.4		%
Minnesota						1						39						0.4		%				493						0.3		%
Florida						1						6						0.1		%				228						0.2		%
Total						85						9,459						100.0		%				$	144,915					100.0		%

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 23

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						Q3 2023 SUPPLEMENTAL INFORMATION

Lease Expirations (unaudited, square feet and dollars in thousands as of September 30, 2023)

Year of Expiration						Number of Leases Expiring (1)						Leased Square Feet						Leased Square Feet as a % of Total Portfolio						Annualized Base Rent						Annualized Base Rent as a % of Total Portfolio
2023						2						186						2.0		%				$	5,288					3.5		%
2024						16						1,911						20.2		%				39,379						27.2		%
2025						13						1,044						11.0		%				18,956						13.1		%
2026						15						804						8.5		%				18,629						12.9		%
2027						14						1,002						10.5		%				16,504						11.4		%
2028						11						595						6.3		%				10,907						7.5		%
2029						4						396						4.2		%				5,968						4.1		%
2030						2						98						1.0		%				4,591						3.2		%
2031						1						11						0.1		%				429						0.3		%
2032						3						300						3.2		%				3,808						2.6		%
Thereafter						9						1,010						10.7		%				20,456						14.2		%
Subtotal						90						7,357						77.7		%				144,915						100.0		%
Month-to-Month						1						262						2.8		%				—						—		%
Total						91						7,619						80.5		%				$	144,915					100.0		%

__________________________________

(1) The Company has certain properties that are subject to multiple leases.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 24

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						Q3 2023 SUPPLEMENTAL INFORMATION

Lease Summary (unaudited, square feet and dollars in thousands as of September 30, 2023)

Rent Escalations

						Number of Leases (1)						Leased Square Feet						Leased Square Feet as a % of Total Portfolio						Annualized Base Rent						Annualized Base Rent as a % of Total Portfolio
Fixed Dollar or Percent Increase						67						6,410						67.8		%				$	120,956					83.5		%
Flat						7						113						1.1		%				1,794						1.2		%
GSA CPI						14						689						7.3		%				18,248						12.6		%
CPI						2						145						1.5		%				3,917						2.7		%
Month-to-Month						1						262						2.8		%				—						—		%
Total						91						7,619						80.5		%				$	144,915					100.0		%

Tenant Expense Obligation

						Number of Leases (1)						Leased Square Feet						Leased Square Feet as a % of Total Portfolio						Annualized Base Rent						Annualized Base Rent as a % of Total Portfolio
NN						58						5,586						59.1		%				$	100,799					69.6		%
Modified Gross						19						977						10.2		%				26,717						18.4		%
NNN						11						1,048						11.1		%				17,303						11.9		%
Gross						3						8						0.1		%				96						0.1		%
Total						91						7,619						80.5		%				$	144,915					100.0		%

__________________________________

(1) The Company has certain properties that are subject to multiple leases.

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 25

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						Q3 2023 SUPPLEMENTAL INFORMATION

Full Portfolio (1) (unaudited, as of September 30, 2023)

Industry

Address

City

State

Food, Beverage & Tobacco

20 Missouri Research Park Drive

St. Charles

MO

Commercial & Professional Services

4335 Paredes Line Road

Brownsville

TX

Telecommunication Services

3750 Wheeler Road

Augusta

GA

Telecommunication Services

4080 27th Court SE

Salem

OR

Financial Institutions

11 Ewall Street

Mount Pleasant

SC

Health Care Equipment & Services

8455 University Place Drive

St. Louis

MO

Transportation

1475 Boettler Road

Uniontown

OH

Government & Public Services

2305 Hudson Boulevard

Brownsville

TX

Government & Public Services

257 Bosley Industrial Park

Parkersburg

WV

Government & Public Services

2805 Pine Mill Road

Paris

TX

Government & Public Services

4521 Thomas Jefferson Street

Caldwell

ID

Government & Public Services

3381 U.S. Highway 277

Eagle Pass

TX

Government & Public Services

2475 Cliff Creek Crossing Drive

Dallas

TX

Government & Public Services

3644 Avtech Parkway

Redding

CA

Government & Public Services

5100 W 36th Street

Minneapolis

MN

Government & Public Services

4551 State Route 11 (E)

Malone

NY

Government & Public Services

2600 Voyager Avenue

Sioux City

IA

Government & Public Services

135 Circle Lane

Knoxville

TN

Health Care Equipment & Services

2304 State Highway 121

Bedford

TX

Vacant

5411 E. Williams Boulevard

Tucson

AZ

Government & Public Services

3369 U.S. Highway 277

Eagle Pass

TX

Transportation

942 S. Shady Grove Road

Memphis

TN

Transportation

4151 Bridgeway Avenue

Columbus

OH

Vacant

1411 Lake Cook Road

Deerfield

IL

Vacant

1415 Lake Cook Road

Deerfield

IL

Vacant

1417 Lake Cook Road

Deerfield

IL

Vacant

1419 Lake Cook Road

Deerfield

IL

Vacant

1425 Lake Cook Road

Deerfield

IL

Vacant

1435 Lake Cook Road

Deerfield

IL

Capital Goods

601 Third Street SE

Cedar Rapids

IA

Consumer Durables & Apparel

15 LaSalle Square

Providence

RI

Materials

100 Sci Park Boulevard

East Windsor

NJ

Media & Entertainment

6005 Fair Lakes Road

East Syracuse

NY

Government & Public Services

310 Canaveral Groves Boulevard

Cocoa

FL

Government & Public Services

103 & 104 Airport Road

Grangeville

ID

Government & Public Services

2901 Alta Mesa Boulevard

Fort Worth

TX

Government & Public Services

59 Dunning Way

Plattsburgh

NY

Financial Institutions

480 Jefferson Boulevard

Warwick

RI

Capital Goods

1800 Nelson Road

Longmont

CO

Health Care Equipment & Services

1850 Norman Drive North

Waukegan

IL

Health Care Equipment & Services

1333 - 1385 East Shaw Avenue

Fresno

CA

Telecommunication Services

2270 Lakeside Boulevard

Richardson

TX

Health Care Equipment & Services

5859 Farinon Drive

San Antonio

TX

Energy

202 S. Cheyenne

Tulsa

OK

Vacant

7475 S. Joliet Street

Englewood

CO

Consumer Durables & Apparel

4340 & 4350 South Monaco Street

Denver

CO

See the Definitions section for a description of the Company's non-GAAP and operating metrics.

Orion Office REIT Inc. | WWW.ONLREIT.COM | 26

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						Q3 2023 SUPPLEMENTAL INFORMATION

Industry

Address