CIO / City Office REIT, Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

PREM14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Table 1: Transaction Valuation

Calculation of Filing Fee Tables Table 1: Transaction Valuation Proposed Maximum Aggregate Value of Transaction Fee Rate Amount of Filing Fee Fees to be Paid 1 $ 293,210,519.

Pro Forma Consolidated Financial Statements

EX-99.1 Exhibit 99.1 Pro Forma Consolidated Financial Statements (Unaudited) On June 18, 2025, the Company entered into a purchase and sale agreement to sell Block 23, Pima Center, 5090 N 40th St, SanTan, Papago Tech, The Quad, and Camelback Square (the “Phoenix Portfolio”) for $296.0 million. On August 15, 2025, the Company completed the first closing of the Phoenix Portfolio sale transaction for

City Office REIT Announces First Closing of Phoenix Portfolio Sale

EX-99.2 Exhibit 99.2 City Office REIT Announces First Closing of Phoenix Portfolio Sale VANCOUVER—August 15, 2025 —City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) announced today that it has completed the first closing in the sale of its Phoenix portfolio for gross sale proceeds of $266 million. The sale represents six of the Company’s seven properties located in P

UNITED STATES 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 Date of Report (Date of earliest event reported): August 15, 2025 City Office REIT,

DEFA14A UNITED STATES 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 Date of Report (Date of earliest event reported): August 15, 2025 City Office REIT, Inc. (Exact name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Com

UNITED STATES 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 Date of Report (Date of earliest event reported): August 15, 2025 City Office REIT,

UNITED STATES 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 Date of Report (Date of earliest event reported): August 15, 2025 City Office REIT, Inc. (Exact name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

THIRD AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT

EX-10.1 Exhibit 10.1 THIRD AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT •  THIS THIRD AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), made as of July 21, 2025, is between and among CITY OFFICE REIT OPERATING PARTNERSHIP, L.P., a Maryland limited partnership (“Borrower”), CITY OFFICE REIT, INC., a Maryland corporation (“REIT Guarantor”), the Subsidiary Guarantors (colle

UNITED STATES 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 Date of Report (Date of earliest event reported): July 31, 2025 City Office REIT, I

DEFA14A UNITED STATES 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 Date of Report (Date of earliest event reported): July 31, 2025 City Office REIT, Inc. (Exact name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commi

City Office REIT Reports Second Quarter 2025 Results

Exhibit 99.1 City Office REIT Reports Second Quarter 2025 Results VANCOUVER—July 31, 2025 —City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended June 30, 2025. Second Quarter Highlights • Rental and other revenues were $42.3 million. GAAP net loss attributable to common stockholders was approximately $107.2 million, or ($

FORM 8-K Item 2.02 Results of Operations and Financial Condition. Item 9.01 Financial Statements and Exhibits.

UNITED STATES 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 Date of Report (Date of earliest event reported): July 31, 2025 City Office REIT, Inc. (Exact name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission Fi

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations Item 3. Quantitative and Qualitative Disclosures About Market Risk

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 00

First Amendment to Agreement of Purchase and Sale and Joint Escrow Instructions, dated as of July 23, 2025, by and among SWVP Acquisitions LLC, a Delaware limited liability company, as buyer, and CIO 5090, Limited Partnership, a Delaware limited partnership; CIO Block 23, LLC, a Delaware limited liability company; CIO PAPAGO Tech Holdings, LLC, a Delaware limited liability company; CIO SAN TAN I, Limited Partnership, a Delaware limited partnership; CIO SAN TAN II, Limited Partnership, a Delaware limited partnership; CIO PIMA, Limited Partnership, a Delaware limited partnership; CIO QUAD, Limited Partnership, a Delaware limited partnership; and CIO CAMELBACK, Limited Partnership, a Delaware limited partnership, each as a seller.

EX-10.2 Exhibit 10.2 FIRST AMENDMENT TO AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS This FIRST AMENDMENT TO AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS (this “Amendment”) is made as of the 23 day of July, 2025 (the “Amendment Effective Date”) by and among (i) CIO 5090, LIMITED PARTNERSHIP, a Delaware limited partnership; CIO BLOCK 23, LLC, a Delaware limited liabi

Agreement of Purchase and Sale and Joint Escrow Instructions, dated as of June 18, 2025, by and among SWVP Acquisitions LLC, a Delaware limited liability company, as buyer, and CIO 5090, Limited Partnership, a Delaware limited partnership; CIO Block 23, LLC, a Delaware limited liability company; CIO PAPAGO Tech Holdings, LLC, a Delaware limited liability company; CIO SAN TAN I, Limited Partnership, a Delaware limited partnership; CIO SAN TAN II, Limited Partnership, a Delaware limited partnership; CIO PIMA, Limited Partnership, a Delaware limited partnership; CIO QUAD, Limited Partnership, a Delaware limited partnership; and CIO CAMELBACK, Limited Partnership, a Delaware limited partnership, each as a seller.

Exhibit 10.1 INDEX Page(s) AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS I SUMMARY AND DEFINITION OF BASIC TERMS This Agreement of Purchase and Sale and Joint Escrow Instructions (this “Agreement”), dated as of the Effective Date set forth in Section 1 of the Summary of Basic Terms, below, is made by and among SWVP ACQUISITIONS LLC, a Delaware limited liability company (“Buyer”), an

UNITED STATES 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 Date of Report (Date of earliest event reported): July 23, 2025 City Office REIT, I

UNITED STATES 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 Date of Report (Date of earliest event reported): July 23, 2025 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission Fi

City Office REIT Enters into Definitive Agreement for Sale at $7.00 per Share of Common Stock in Transaction Valued at Approximately $1.1 Billion

EX-99.1 Exhibit 99.1 City Office REIT Enters into Definitive Agreement for Sale at $7.00 per Share of Common Stock in Transaction Valued at Approximately $1.1 Billion VANCOUVER—July 24, 2025— City Office REIT, Inc. (NYSE: CIO) (“City Office”, or the “Company”) today announced that it has entered into a definitive merger agreement (“the Merger Agreement”) with MCME Carell Holdings, LP and MCME Care

UNITED STATES 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 Date of Report (Date of earliest event reported): July 23, 2025 City Office REIT, I

UNITED STATES 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 Date of Report (Date of earliest event reported): July 23, 2025 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission Fi

Amendment No. 3 to Executive Employment Agreement, dated as of July 23, 2025, by and among City Office Management ULC, City Office REIT Operating Partnership, and James Farrar.

Exhibit 10.3 AMENDMENT NO. 3 TO EXECUTIVE EMPLOYMENT AGREEMENT In connection with the closing of the transaction (the “Transaction”) contemplated by that certain Agreement and Plan of Merger (the “Merger Agreement”) by and among (i) MCME Carell Holdings, LP, a Delaware limited partnership (“Parent”), (ii) MCME Carell Merger Sub, LLC, a Maryland limited liability company, and (iii) City Office REIT

Agreement and Plan of Merger, dated July 23, 2025, by and among MCME Carell Holdings, LP, MCME Carell Merger Sub, LLC, and City Office REIT, Inc.

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER among MCME CARELL HOLDINGS, LP, MCME CARELL MERGER SUB, LLC and CITY OFFICE REIT, INC. Dated as of July 23, 2025 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effects of the Merger 3 Section 1.5 Organizational Documents of the Surviving Company 3 Section 1.6 Officers 3 A

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CORRESP Hogan Lovells US LLP 609 Main Street Suite 4200 Houston, TX 77002 T +1 713 632 1400 F +1 713 632 1401 www.

As filed with the Securities and Exchange Commission on May 16, 2025

S-8 As filed with the Securities and Exchange Commission on May 16, 2025 Registration No.

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CORRESP Hogan Lovells US LLP 609 Main Street Suite 4200 Houston, TX 77002 T +1 713 632 1400 F +1 713 632 1401 www.

Calculation of Filing Fee Table

EX-FILING FEES Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 City Office REIT, Inc.

Current Report

UNITED STATES 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 Date of Report (Date of earliest event reported): May 1, 2025 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

City Office REIT Reports First Quarter 2025 Results

Exhibit 99.1 City Office REIT Reports First Quarter 2025 Results VANCOUVER—May 2, 2025 —City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended March 31, 2025. First Quarter Highlights • Rental and other revenues were $42.3 million. GAAP net loss attributable to common stockholders was approximately $3.5 million, or ($0.09)

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): May 02, 2025 City Office REIT, Inc. (Exact name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission Fil

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations Item 3. Quantitative and Qualitative Disclosures About Market Risk

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0

Current Report

UNITED STATES 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 Date of Report (Date of earliest event reported): April 14, 2025 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant  ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Conf

City Office REIT Reports Fourth Quarter and Full Year 2024 Results

Exhibit 99.1 City Office REIT Reports Fourth Quarter and Full Year 2024 Results VANCOUVER—February 20, 2025 —City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter and full year ended December 31, 2024. Fourth Quarter Highlights • Rental and other revenues were $41.9 million. GAAP net loss attributable to common stockholders was

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file no: 001-36409

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): February 20, 2025 City Office REIT, Inc. (Exact name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commissio

Subsidiaries of the Company †

Exhibit 21.1 List of Subsidiaries of City Office REIT, Inc. Name of Subsidiary State of Incorporation or Organization 1. City Office REIT Operating Partnership, L.P. Maryland 2. City Office Development, LLC Delaware 3. CIO Management Buyer LLC Delaware 4. City Office Management ULC British Columbia 5. Gibralt Amberglen LLC Delaware 6. Amberglen Properties Limited Partnership Oregon 7. CIO Ambergle

Insider Trading Policy †

Exhibit 19.1 CITY OFFICE REIT, INC. INSIDER TRADING POLICY Introduction While performing their duties, the persons identified below as “Covered Persons” may learn material, nonpublic information about City Office REIT, Inc. (the “Company”) or another company. This information may be valuable to those who trade in Company shares or the shares of other companies. It is the law, as well as in the int

EX-99

EX-99 3 ITEM7.txt EXHIBIT 99: ITEM 7 BlackRock Advisors, LLC Aperio Group, LLC BlackRock Investment Management (UK) Limited SpiderRock Advisors, LLC BlackRock Asset Management Canada Limited BlackRock Fund Advisors BlackRock Institutional Trust Company, National Association BlackRock Financial Management, Inc. BlackRock Japan Co., Ltd. BlackRock Investment Management, LLC *Entity beneficially owns

CIO / City Office REIT, Inc. / Newtyn Management, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* City Office REIT, Inc. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 178587101 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu

UNITED STATES 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 Date of Report (Date of earliest event reported): October 31, 2024 City Office REIT

UNITED STATES 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 Date of Report (Date of earliest event reported): October 31, 2024 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

City Office REIT Reports Third Quarter 2024 Results

Exhibit 99.1 City Office REIT Reports Third Quarter 2024 Results VANCOUVER—October 31, 2024 —City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended September 30, 2024. Third Quarter Highlights • Rental and other revenues were $42.4 million. GAAP net loss attributable to common stockholders was approximately $4.5 million, o

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from     to     Commission Fi

As filed with the Securities and Exchange Commission on October 11, 2024

As filed with the Securities and Exchange Commission on October 11, 2024 Registration No.

City Office REIT, Inc. 666 Burrard Street, Suite 3210 Vancouver, British Columbia, V6C 2X8

City Office REIT, Inc. 666 Burrard Street, Suite 3210 Vancouver, British Columbia, V6C 2X8 October 11, 2024 VIA EDGAR AND EMAIL Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attention: Ms. Stacie Gorman Re: Acceleration Request of City Office REIT, Inc. Registration Statement on Form S-3 (File No. 333-278324) CIK No. 0001593222 Dear M

October 3, 2024

Hunton Andrews Kurth LLP 600 Travis, Suite 4200 Houston, Texas 77002 +1.713.220.4200 Phone +1.713.220.4285 Fax HuntonAK.com October 3, 2024 Office of Real Estate & Construction U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549-3561 Re: City Office REIT, Inc. Registration Statement on Form S-3 Filed March 28, 2024 File No. 333-278324 L

August 22, 2024

Hunton Andrews Kurth LLP 600 Travis, Suite 4200 Houston, Texas 77002 +1.713.220.4200 Phone +1.713.220.4285 Fax HuntonAK.com August 22, 2024 Office of Real Estate & Construction U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549-3561 Re: City Office REIT, Inc. Form 10-K for the year ended December 31, 2023 Filed February 22, 2024 Respon

City Office REIT Reports Second Quarter 2024 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Second Quarter 2024 Results VANCOUVER—August 1, 2024 —City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended June 30, 2024. Second Quarter Highlights • Rental and other revenues were $42.3 million. GAAP net loss attributable to common stockholders was approximately $5.6 million

UNITED STATES 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 Date of Report (Date of earliest event reported): August 1, 2024 City Office REIT,

UNITED STATES 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 Date of Report (Date of earliest event reported): August 1, 2024 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from     to     Commission File Nu

June 18, 2024

Hunton Andrews Kurth LLP 600 Travis, Suite 4200 Houston, Texas 77002 +1.713.220.4200 Phone +1.713.220.4285 Fax HuntonAK.com June 18, 2024 Office of Real Estate & Construction U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549-3561    Re: City Office REIT, Inc. Form 10-K for the year ended December 31, 2023 Filed February 22, 2024 Respo

Form of Acknowledgment Agreement by and between the Company and James Farrar.†

EXHIBIT 10.2 CITY OFFICE REIT, INC. EQUITY INCENTIVE PLAN PERFORMANCE RESTRICTED STOCK UNIT AWARD AGREEMENTS & RESTRICTED STOCK UNIT AWARD AGREEMENTS Acknowledgment This Acknowledgment (this “Acknowledgment”) is entered into by and between City Office REIT, Inc. (the ”Company”) and the below identified individual (the ”Participant”), with respect to the Restricted Stock Unit Award Agreements liste

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): May 3, 2024 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

Form of Acknowledgment Agreement by and between the Company and Gregory Tylee.†

EXHIBIT 10.3 CITY OFFICE REIT, INC. EQUITY INCENTIVE PLAN PERFORMANCE RESTRICTED STOCK UNIT AWARD AGREEMENTS & RESTRICTED STOCK UNIT AWARD AGREEMENTS Acknowledgment This Acknowledgment (this “Acknowledgment”) is entered into by and between City Office REIT, Inc. (the ”Company”) and the below identified individual (the ”Participant”), with respect to the Restricted Stock Unit Award Agreements liste

City Office REIT Reports First Quarter 2024 Results

Exhibit 99.1 City Office REIT Reports First Quarter 2024 Results VANCOUVER—May 3, 2024 —City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended March 31, 2024. First Quarter Highlights • Rental and other revenues were $44.5 million. GAAP net loss attributable to common stockholders was approximately $2.4 million, or ($0.06)

performance-based restricted unit award agreement

EXHIBIT 10.1 CITY OFFICE REIT, INC. EQUITY INCENTIVE PLAN PERFORMANCE RESTRICTED STOCK UNIT AWARD AGREEMENT This Award Agreement (the “Award Agreement”) is made as of [DATE] by and between City Office REIT, Inc. (the “Company”) and [INDIVIDUAL] (the “Participant”) to effect the grant of Restricted Stock Units under the Company’s Equity Incentive Plan (the “Plan”). Capitalized terms not otherwise d

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPOR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from       to       Commission Fi

Current Report

UNITED STATES 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 Date of Report (Date of earliest event reported): May 2, 2024 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

Current Report

UNITED STATES 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 Date of Report (Date of earliest event reported): May 2, 2024 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

April 19, 2024

Hunton Andrews Kurth LLP 600 Travis, Suite 4200 Houston, Texas 77002 +1.713.220.4200 Phone +1.713.220.4285 Fax HuntonAK.com April 19, 2024 Office of Real Estate & Construction U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549-3561 Re: City Office REIT, Inc. Form 10-K for the year ended December 31, 2023 Filed February 22, 2024 File No

As filed with the Securities and Exchange Commission on March 28, 2024

Table of Contents As filed with the Securities and Exchange Commission on March 28, 2024 Registration No.

Filing Fee Table**

Exhibit 107 Calculation of Filing Fee Table S-3 (Form Type) City Office REIT, Inc.

Form of Indenture (for [Subordinated] Debt Securities) (open-ended)**

Exhibit 4.3 CITY OFFICE REIT, INC. TO , Trustee Form of Indenture (For [Subordinated]* Debt Securities) Dated as of , 20 TABLE OF CONTENTS † Page ARTICLE I DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 Section 1.01. Definitions 1 Section 1.02. Compliance Certificates and Opinions 8 Section 1.03. Form of Documents Delivered to Trustee 8 Section 1.04. Acts of Holders 9 Section 1.05. Noti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant  ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Conf

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant  ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use

City Office REIT Reports Fourth Quarter and Full Year 2023 Results

Exhibit 99.1 City Office REIT Reports Fourth Quarter and Full Year 2023 Results VANCOUVER— February 22, 2024 —City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter and full year ended December 31, 2023. Fourth Quarter Highlights • Rental and other revenues were $44.3 million. GAAP net loss attributable to common stockholders wa

City Office REIT, Inc. Clawback Policy*†

Exhibit 97 CITY OFFICE REIT, INC. CLAWBACK POLICY This CLAWBACK POLICY (this “Policy”) is adopted as of November 8, 2023 (the “Effective Date”), by the Board of Directors (the “Board”) of City Office REIT, Inc., a Maryland corporation (our “Company”). Introduction The Board believes that it is in the best interests of the Company to maintain a culture that emphasizes integrity and accountability a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PUR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from         to         Commission fil

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): February 22, 2024 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commissio

Subsidiaries of the Company†

Exhibit 21.1 List of Subsidiaries of City Office REIT, Inc. Name of Subsidiary State of Incorporation or Organization 1. City Office REIT Operating Partnership, L.P. Maryland 2. City Office Development, LLC Delaware 3. CIO Management Buyer LLC Delaware 4. City Office Management ULC British Columbia 5. Gibralt Amberglen LLC Delaware 6. Amberglen Properties Limited Partnership Oregon 7. CIO Ambergle

CIO / City Office REIT, Inc. / Newtyn Management, LLC Passive Investment

SC 13G 1 formsc13g.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* City Office REIT, Inc. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 178587101 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to des

CIO / City Office REIT, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: City Office REIT Inc Title of Class of Securities: Common Stock CUSIP Number: 178587101 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

City Office REIT Reports Third Quarter 2023 Results

Exhibit 99.1 City Office REIT Reports Third Quarter 2023 Results VANCOUVER— November 9, 2023—City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended September 30, 2023. Third Quarter Highlights • Rental and other revenues were $44.2 million. GAAP net loss attributable to common stockholders was approximately $1.9 million, o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION R

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Numbe

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): November 8, 2023 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

Amended and Restated Renewal Promissory Note, dated as of August 16, 2023, by and among CIO Carillon, Limited Partnership, as borrower, and BankUnited, N.A.

Exhibit 10.4 AMENDED AND RESTATED RENEWAL PROMISSORY NOTE $14,490,820.43 USD Date: August 16, 2023 THIS PROMISSORY NOTE (this “Note”) made as of August 16, 2023, by CIO CARILLON, LIMITED PARTNERSHIP, a Delaware limited partnership, having an address at c/o City Office REIT, Inc., 666 Burrard St., Suite 3210, Vancouver, British Columbia V6C 2X8 Canada (“Borrower”), to BANKUNITED, N.A., national ban

Carillon Point

Exhibit 10.3 AMENDED AND RESTATED LOAN AGREEMENT THIS AMENDED AND RESTATED LOAN AGREEMENT is made and entered into as of August 16, 2023 (as modified from time to time, this “Agreement”), by and between CIO CARILLON, LIMITED PARTNERSHIP, a Delaware limited partnership (“Borrower”) and BANKUNITED, N.A., a national banking association (“Bank”). RECITALS: WHEREAS, on or about October 12, 2016, Bank e

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES 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 Date of Report (Date of earliest event reported): August 16, 2023 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

Amended and Restated Renewal Promissory Note, dated as of August 16, 2023, by and among CIO Research Commons, LLC, CIO Technology Point I & II, LLC and CIO University Tech, LLC, each and collectively as borrower, and BankUnited, N.A. (incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K filed with the Commission on August 18, 2023).

Exhibit 10.2 AMENDED AND RESTATED RENEWAL PROMISSORY NOTE $26,270,683.21 USD Date: August 16, 2023 THIS PROMISSORY NOTE (this “Note”) made as of August 16, 2023, by CIO RESEARCH COMMONS, LLC, a Delaware limited liability company, CIO TECHNOLOGY POINT I & II, LLC, a Delaware limited liability company and CIO UNIVERSITY TECH, LLC, a Delaware limited liability company, having an address at c/o City O

Amended and Restated Loan Agreement, dated as of August 16, 2023, by and among CIO Research Commons, LLC, CIO Technology Point I & II, LLC and CIO University Tech, LLC, each and collectively as borrower, and BankUnited, N.A. (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed with the Commission on August 18, 2023).

Exhibit 10.1 AMENDED AND RESTATED LOAN AGREEMENT THIS AMENDED AND RESTATED LOAN AGREEMENT dated as of August 16, 2023 (as modified from time to time, this “Agreement”), by and between CIO RESEARCH COMMONS, LLC, a Delaware limited liability company, CIO TECHNOLOGY POINT I & II, LLC, a Delaware limited liability company, and CIO UNIVERSITY TECH, LLC, a Delaware limited liability company (each and co

City Office REIT Reports Second Quarter 2023 Results

Exhibit 99.1 City Office REIT Reports Second Quarter 2023 Results VANCOUVER— August 3, 2023—City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended June 30, 2023. Second Quarter Highlights • Rental and other revenues were $44.6 million. GAAP net loss attributable to common stockholders was approximately $2.5 million, or ($0

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): August 3, 2023 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 00

Third Amended and Restated Bylaws of City Office REIT, Inc., effective as of August 2, 2023 (incorporated by reference to Exhibit 3.2 to the Company’s Quarterly Report on Form 10-Q filed on August 3, 2023).

Exhibit 3.2 CITY OFFICE REIT, INC. THIRD AMENDED AND RESTATED BYLAWS Effective August 2, 2023 ARTICLE I OFFICES Section 1. PRINCIPAL OFFICE. The principal office of City Office REIT, Inc. (the “Corporation”) in the State of Maryland shall be located at such place as the Board of Directors may designate. Section 2. ADDITIONAL OFFICES. The Corporation may have additional offices, including a princip

UNITED STATES 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 Date of Report (Date of earliest event reported): May 15, 2023 City Office REIT, In

UNITED STATES 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 Date of Report (Date of earliest event reported): May 15, 2023 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission Fil

UNITED STATES 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 Date of Report (Date of earliest event reported): May 5, 2023 City Office REIT, Inc

UNITED STATES 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 Date of Report (Date of earliest event reported): May 5, 2023 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

Calculation of Filing Fee Table

EX-FILING FEES Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 City Office REIT, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPOR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0

City Office REIT Reports First Quarter 2023 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports First Quarter 2023 Results VANCOUVER— May 5, 2023—City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended March 31, 2023. First Quarter Highlights • Rental and other revenues were $46.0 million. GAAP net loss attributable to common stockholders was approximately $1.2 million, or

As filed with the Securities and Exchange Commission on May 5, 2023

S-8 As filed with the Securities and Exchange Commission on May 5, 2023 Registration No.

UNITED STATES 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 Date of Report (Date of earliest event reported): May 4, 2023 City Office REIT, Inc

UNITED STATES 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 Date of Report (Date of earliest event reported): May 4, 2023 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

Schedule 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 1 4A IN FORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the R egi strant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Co

City Office REIT Reports Fourth Quarter and Full Year 2022 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Fourth Quarter and Full Year 2022 Results VANCOUVER— February 23, 2023—City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter and full year ended December 31, 2022. Fourth Quarter Highlights • Rental and other revenues were $44.6 million. GAAP net loss attributable to common stockhol

Form 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ 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 For the transition period from to Commission file no: 001-36409

Subsidiaries of the Company †

EX-21.1 Exhibit 21.1 List of Subsidiaries of City Office REIT, Inc. Name of Subsidiary State of Incorporation or Organization 1. City Office REIT Operating Partnership, L.P. Maryland 2. City Office Development, LLC Delaware 3. CIO Management Buyer LLC Delaware 4. City Office Management ULC British Columbia 5. Gibralt Amberglen LLC Delaware 6. Amberglen Properties Limited Partnership Oregon 7. CIO

UNITED STATES 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 Date of Report (Date of earliest event reported): February 23, 2023 City Office REI

UNITED STATES 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 Date of Report (Date of earliest event reported): February 23, 2023 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commissio

CIO / City Office REIT Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0592-cityofficereitinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: City Office REIT Inc. Title of Class of Securities: REIT CUSIP Number: 178587101 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the

City Office REIT Reports Third Quarter 2022 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Third Quarter 2022 Results VANCOUVER— November 7, 2022—City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended September 30, 2022. Third Quarter Highlights • Rental and other revenues were $45.5 million. GAAP net income attributable to common stockholders was approximately $0.1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ 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 R

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ 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 For the transition period from to Commission File Numbe

UNITED STATES 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 Date of Report (Date of earliest event reported): November 7, 2022 City Office REIT

UNITED STATES 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 Date of Report (Date of earliest event reported): November 7, 2022 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

City Office REIT Reports Second Quarter 2022 Results

Exhibit 99.1 City Office REIT Reports Second Quarter 2022 Results VANCOUVER? August 4, 2022?City Office REIT, Inc. (NYSE: CIO) (the ?Company,? ?City Office,? ?we? or ?our?) today announced its results for the quarter ended June 30, 2022. Second Quarter Highlights ? Rental and other revenues were $45.5 million. GAAP net income attributable to common stockholders was approximately $1.0 million, or $

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): August 4, 2022 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ 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

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? 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 For the transition period from to Commission File Number: 00

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES 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 Date of Report (Date of earliest event reported): May 4, 2022 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ 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 REPOR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? 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 For the transition period from to Commission File Number: 0

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): May 5, 2022 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

City Office REIT Reports First Quarter 2022 Results

Exhibit 99.1 City Office REIT Reports First Quarter 2022 Results VANCOUVER?May 5, 2022?City Office REIT, Inc. (NYSE: CIO) (the ?Company,? ?City Office,? ?we? or ?our?) today announced its results for the quarter ended March 31, 2022. First Quarter Highlights ? Rental and other revenues were $44.9 million. GAAP net income attributable to common stockholders was approximately $22.7 million, or $0.51

Amendment No. 2 to the City Office REIT, Inc. Equity Incentive Plan, dated February 24, 2022, incorporated by reference to Exhibit A to the Company’s Definitive Proxy Statement on Schedule 14A filed on March 16, 2022.

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confid

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of

City Office REIT Reports Fourth Quarter and Full Year 2021 Results

Exhibit 99.1 City Office REIT Reports Fourth Quarter and Full Year 2021 Results VANCOUVER?February 25, 2022?City Office REIT, Inc. (NYSE: CIO) (the ?Company,? ?City Office,? ?we? or ?our?) today announced its results for the quarter and full year ended December 31, 2021. Fourth Quarter Highlights ? Rental and other revenues were $39.7 million. GAAP net income attributable to common stockholders wa

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incor

Pro Forma Consolidated Financial Statements

Exhibit 99.2 Pro Forma Consolidated Financial Statements (Unaudited) On December 31, 2021, City Office REIT, Inc. (the ?Company,? ?we,? ?our? or ?us?) closed on the acquisition of Bloc 83 in Raleigh, North Carolina for a gross purchase price of $330.0 million. The Company does not have a material relationship with the seller of Bloc 83 and the acquisition is not an affiliated transaction. As previ

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PUR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file no: 001-36409

INDEPENDENT AUDITORS’ REPORT

EX-99.1 Exhibit 99.1 INDEPENDENT AUDITORS’ REPORT To the Stockholders and Board of Directors City Office REIT, Inc. We have audited the accompanying statement of revenues and certain expenses of Bloc 83 (the Property) for the year ended December 31, 2020, and the related notes (the Statement). Management’s Responsibility for the Statement Management is responsible for the preparation and fair pres

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): February 25, 2022 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commissio

Subsidiaries of the Company †

EX-21.1 2 d272060dex211.htm EX-21.1 Exhibit 21.1 List of Subsidiaries of City Office REIT, Inc. Name of Subsidiary State of Incorporation or Organization 1. City Office REIT Operating Partnership, L.P. Maryland 2. City Office Development, LLC Delaware 3. CIO Management Buyer LLC Delaware 4. City Office Management ULC British Columbia 5. Gibralt Amberglen LLC Delaware 6. Amberglen Properties Limite

CIO / City Office REIT Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: City Office REIT Inc. Title of Class of Securities: REIT CUSIP Number: 178587101 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

Administrative Services Agreement, dated as of February 1, 2016, by and among City Office Management Ltd., Second City Capital II Corporation and Second City Real Estate II Corporation (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the Commission on February 5, 2016).

Exhibit 10.1 ADMINISTRATIVE SERVICES AGREEMENT dated as of February 1, 2016 among CITY OFFICE MANAGEMENT LTD., SECOND CITY CAPITAL II CORPORATION, and SECOND CITY REAL ESTATE II CORPORATION TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 3 Section 1.01 Certain Defined Terms 3 ARTICLE II SERVICES AND DURATION 7 Section 2.01 Services 7 Section 2.02 Personnel 8 ARTICLE III OTHER ARRANGEMENTS AND ADDITIO

Third Amendment to Advisory Agreement, dated February 1, 2016, by and among City Office REIT, Inc., City Office REIT Operating Partnership, L.P. and City Office Real Estate Management, Inc.

Exhibit 10.2 THIRD AMENDMENT TO ADVISORY AGREEMENT This THIRD AMENDMENT TO ADVISORY AGREEMENT (this ?Third Amendment?) is made as of February 1, 2016 , by and among City Office REIT, Inc. a Maryland corporation (the ?Company?), City Office REIT Operating Partnership, L.P., a Maryland limited partnership of which the Company is the sole general partner (the ?Operating Partnership?), and City Office

Amendment No. 1 to Executive Employment Agreement, dated as of July 31, 2019, by and between City Office Management Ltd. and James Farrar (incorporated by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q filed with the Commission on August 1, 2019). *

Exhibit 10.3 AMENDMENT NO. 1 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 1 (the ?Amendment?), dated as of July 31, 2019, to the Executive Employment Agreement (the ?Agreement?) between City Office Management Ltd. (the ?Company?), a wholly-subsidiary of City Office REIT, Inc. (the ?REIT?), and Mr. James Farrar, as Chief Executive Officer of the REIT, dated as of F

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES 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 Date of Report (Date of earliest event reported): February 1, 2018 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or organizat

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES 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 Date of Report (Date of earliest event reported): February 1, 2016 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of (Commission (I.R.S. Employ

Executive Employment Agreement, dated February 1, 2016, by and between City Office Management Ltd. and Anthony Maretic

Exhibit 10.4 EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT, effective as of February 1, 2016, between City Office Management Ltd. (the ?Company?), and Anthony Maretic (the ?Executive?), recites and provides as follows: W I T N E S S E T H: WHEREAS, the Company desires to employ the Executive to serve as the Chief Financial Officer, Secretary and Treasurer of the Company; and W

Executive Employment Agreement, dated as of February 1, 2018, by and between City Office Management Ltd. and Gregory Tylee (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed with the Commission on February 2, 2018). *

Exhibit 10.2 EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT, effective as of February 1, 2018, between City Office Management Ltd. (the ?Company?), and Gregory Tylee (the ?Executive?), recites and provides as follows: W I T N E S S E T H: WHEREAS, the Company desires to employ the Executive to serve as President and Chief Operating Officer of the Company; and WHEREAS, the Execu

Executive Employment Agreement, dated February 1, 2016, by and between City Office Management Ltd. and James Farrar

Exhibit 10.6 EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT, effective as of February 1, 2016, between City Office Management Ltd. (the ?Company?), and James Farrar (the ?Executive?), recites and provides as follows: W I T N E S S E T H: WHEREAS, the Company desires to employ the Executive to serve as the Chief Executive Officer of the Company; and WHEREAS, the Executive desire

Termination and Mutual Release Agreement, dated February 1, 2016, by and between City Office Real Estate Management Inc. and Second City Capital II Corporation

Exhibit 10.3 TERMINATION AND MUTUAL RELEASE AGREEMENT THIS TERMINATION AND RELEASE AGREEMENT (the ?Agreement?) is made and entered into as of the 1st of February, 2016, by and between by and between City Office Real Estate Management Inc., a British Columbia corporation (the ?Advisor?) and Second City Capital II Corporation, a British Columbia corporation (the ?Administrator?). BACKGROUND 1. On Ap

Executive Employment Agreement, dated February 1, 2016, by and between City Office Management Ltd. and Gregory Tylee

Exhibit 10.5 EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT, effective as of February 1, 2016, between City Office Management Ltd. (the ?Company?), and Gregory Tylee (the ?Executive?), recites and provides as follows: W I T N E S S E T H: WHEREAS, the Company desires to employ the Executive to serve as the President and Chief Operating Officer of the Company; and WHEREAS, the E

Administrative Services Agreement, dated July 31, 2019, by and among CIO Administrative Services, LLC, Clarity Real Estate III GP, Limited Partnership and Clarity Real Estate Ventures GP, Limited Partnership (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed with the Commission on August 1, 2019).

Exhibit 10.2 EXECUTION VERSION ADMINISTRATIVE SERVICES AGREEMENT dated as of July 31, 2019 among CIO ADMINISTRATIVE SERVICES, LLC and CLARITY REAL ESTATE III GP, LIMITED PARTNERSHIP and CLARITY REAL ESTATE VENTURES GP, LIMITED PARTNERSHIP TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.01 Certain Defined Terms 1 ARTICLE II SERVICES AND DURATION 3 Section 2.01 Services 3 Section 2.02 Perso

Amendment No. 1 to Executive Employment Agreement, dated as of July 31, 2019, by and between City Office Management Ltd. and Anthony Maretic (incorporated by reference to Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q filed with the Commission on August 1, 2019). *

Exhibit 10.5 AMENDMENT NO. 1 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 1 (the ?Amendment?), dated as of July 31, 2019, to the Executive Employment Agreement (the ?Agreement?) between City Office Management Ltd. (the ?Company?), a wholly-subsidiary of City Office REIT, Inc. (the ?REIT?), and Mr. Anthony Maretic, as Chief Financial Officer, Secretary and Treasure

Executive Employment Agreement, dated as of February 1, 2018, by and between City Office Management Ltd. and James Farrar (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the Commission on February 2, 2018). *

Exhibit 10.1 EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT, effective as of February 1, 2018, between City Office Management Ltd. (the ?Company?), and James Farrar (the ?Executive?), recites and provides as follows: W I T N E S S E T H: WHEREAS, the Company desires to employ the Executive to serve as Chief Executive Officer of the Company; and WHEREAS, the Executive desires to

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 00

Amendment No. 1 to Executive Employment Agreement, dated as of July 31, 2019, by and between City Office Management Ltd. and Gregory Tylee (incorporated by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q filed with the Commission on August 1, 2019). *

Exhibit 10.4 AMENDMENT NO. 1 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 1 (the ?Amendment?), dated as of July 31, 2019, to the Executive Employment Agreement (the ?Agreement?) between City Office Management Ltd. (the ?Company?), a wholly-subsidiary of City Office REIT, Inc. (the ?REIT?), and Mr. Gregory Tylee, as President and Chief Operating Officer of the REIT

Executive Employment Agreement, dated as of February 1, 2018, by and between City Office Management Ltd. and Anthony Maretic (incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed with the Commission on February 2, 2018).*

Exhibit 10.3 EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT, effective as of February 1, 2018, between City Office Management Ltd. (the ?Company?), and Anthony Maretic (the ?Executive?), recites and provides as follows: W I T N E S S E T H: WHEREAS, the Company desires to employ the Executive to serve as Chief Financial Officer, Secretary and Treasurer of the Company; and WHERE

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES 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 Date of Report (Date of earliest event reported): December 31, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commissio

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES 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 Date of Report (Date of earliest event reported): December 9, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES 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 Date of Report (Date of earliest event reported): December 6, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES 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 Date of Report (Date of earliest event reported): December 2, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES 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 Date of Report (Date of earliest event reported): November 22, 2021 (November 16, 2021) City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incor

amended and restated credit agreement

Exhibit 10.1 AMENDED AND RESTATED CREDIT AGREEMENT DATED AS OF NOVEMBER 16, 2021 by and among CITY OFFICE REIT OPERATING PARTNERSHIP, L.P. AS BORROWER, CITY OFFICE REIT, INC. AND CERTAIN OF ITS SUBSIDIARIES, AS GUARANTORS KEYBANK NATIONAL ASSOCIATION, THE OTHER LENDERS WHICH ARE PARTIES TO THIS AGREEMENT AND OTHER LENDERS THAT MAY BECOME PARTIES TO THIS AGREEMENT, KEYBANK NATIONAL ASSOCIATION, AS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ 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 R

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? 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 For the transition period from to Commission File Numbe

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): November 3, 2021 (October 29, 2021) City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorpo

First Amendment to Agreement of Purchase and Sale and Joint Escrow Instructions, dated October 29, 2021, by and among CIO SM Land Holdings, LLC, CIO 9985 Pacific Heights, LLC and South Buyer.

Exhibit 10.1 [***] = Certain marked information has been omitted from this exhibit because it is both not material and is the type that the registrant treats as private or confidential FIRST AMENDMENT TO AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS This FIRST AMENDMENT TO AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS (this ?First Amendment?) is made and entered into

City Office REIT Reports Third Quarter 2021 Results

Exhibit 99.1 City Office REIT Reports Third Quarter 2021 Results VANCOUVER?November 3, 2021?City Office REIT, Inc. (NYSE: CIO) (the ?Company,? ?City Office,? ?we? or ?our?) today announced its results for the quarter ended September 30, 2021. Third Quarter Highlights ? Rental and other revenues were $44.9 million. GAAP net loss attributable to common stockholders was approximately $1.0 million, or

Agreement of Purchase and Sale and Joint Escrow Instructions, dated August 19, 2021, by and among CIO Sorrento Mesa Holdings, LLC, CIO 5910 Pacific Center, LLC and North Buyer.

Exhibit 10.1 [***] = Certain marked information has been omitted from this exhibit because it is both not material and is the type that the registrant treats as private or confidential AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS I SUMMARY AND DEFINITION OF BASIC TERMS This Agreement of Purchase and Sale and Joint Escrow Instructions (this ?Agreement?), dated as of the Effective Da

Agreement of Purchase and Sale and Joint Escrow Instructions, dated August 19, 2021, by and among CIO SM Land Holdings, LLC, CIO 9985 Pacific Heights, LLC and South Buyer.

Exhibit 10.2 [***] = Certain marked information has been omitted from this exhibit because it is both not material and is the type that the registrant treats as private or confidential AGREEMENT OF PURCHASE AND SALE AND JOINT ESCROW INSTRUCTIONS I SUMMARY AND DEFINITION OF BASIC TERMS This Agreement of Purchase and Sale and Joint Escrow Instructions (this ?Agreement?), dated as of the Effective Da

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES 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 Date of Report (Date of earliest event reported): August 20, 2021 (August 19, 2021) City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorpora

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): August 5, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission F

Amendment No. 2 to Executive Employment Agreement, dated as of August 4, 2021, by and between City Office Management ULC and Gregory Tylee (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed with the Commission on August 5, 2021).*

Exhibit 10.2 AMENDMENT NO. 2 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 2 (the ?Amendment?), dated as of August 4, 2021, to the Executive Employment Agreement (the ?Agreement?) between City Office Management ULC (the ?Company?), a wholly-subsidiary of City Office REIT, Inc. (the ?REIT?), and Mr. Greg Tylee, as Chief Operating Officer and President of the REIT, d

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ 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

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? 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 For the transition period from to Commission File Number: 00

Amendment No. 2 to Executive Employment Agreement, dated as of August 4, 2021, by and between City Office Management ULC and Anthony Maretic (incorporated by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q filed with the Commission on August 5, 2021).*

Exhibit 10.3 AMENDMENT NO. 2 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 2 (the ?Amendment?), dated as of August 4, 2021, to the Executive Employment Agreement (the ?Agreement?) between City Office Management ULC (the ?Company?), a wholly-subsidiary of City Office REIT, Inc. (the ?REIT?), and Mr. Anthony Maretic, as Chief Financial Officer, Secretary and Treasure

Amendment No. 2 to Executive Employment Agreement, dated as of August 4, 2021, by and between City Office Management ULC and James Farrar (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed with the Commission on August 5, 2021).*

Exhibit 10.1 AMENDMENT NO. 2 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 2 (the ?Amendment?), dated as of August 4, 2021, to the Executive Employment Agreement (the ?Agreement?) between City Office Management ULC (the ?Company?), a wholly-subsidiary of City Office REIT, Inc. (the ?REIT?), and Mr. James Farrar, as Chief Executive Officer of the REIT, dated as of F

City Office REIT Reports Second Quarter 2021 Results

Exhibit 99.1 City Office REIT Reports Second Quarter 2021 Results VANCOUVER?August 5, 2021?City Office REIT, Inc. (NYSE: CIO) (the ?Company,? ?City Office,? ?we? or ?our?) today announced its results for the quarter ended June 30, 2021. Second Quarter Highlights ? Rental and other revenues were $40.0 million. GAAP net loss attributable to common stockholders was approximately $0.2 million, or $0.0

City Office REIT, Inc. Up to 15,000,000 shares of Common Stock Up to 1,000,000 shares of 6.625% Series A Cumulative Redeemable Preferred Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) File No. 333-254966 PROSPECTUS SUPPLEMENT (To prospectus dated April 12, 2021) City Office REIT, Inc. Up to 15,000,000 shares of Common Stock Up to 1,000,000 shares of 6.625% Series A Cumulative Redeemable Preferred Stock We have entered into equity distribution agreements with KeyBanc Capital Markets Inc., Raymond James & Associates, Inc., BMO Ca

Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES 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 Date of Report (Date of earliest event reported): May 7, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): May 7, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

Submission of Matters to a Vote of Security Holders

UNITED STATES 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 Date of Report (Date of earliest event reported): May 6, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission File

City Office REIT Reports First Quarter 2021 Results

Exhibit 99.1 City Office REIT Reports First Quarter 2021 Results VANCOUVER?May 7, 2021?City Office REIT, Inc. (NYSE: CIO) (the ?Company,? ?City Office,? ?we? or ?our?) today announced its results for the quarter ended March 31, 2021. First Quarter Highlights ? Rental and other revenues were $39.5 million. GAAP net income attributable to common stockholders was approximately $47.0 million, or $1.07

Quarterly Report - FORM 10-Q

Table of Contents Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

-

City Office REIT, Inc. 666 Burrard Street, Suite 3210 Vancouver, British Columbia, V6C 2X8 April 8, 2021 VIA EDGAR AND EMAIL Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Mr. Ronald Alper Re: Acceleration Request of City Office REIT, Inc. Registration Statement on Form S-3 (File No. 333-254966) CIK No. 0001593222 Dear Mr. Al

- FORM S-3

Table of Contents As filed with the Securities and Exchange Commission on April 1, 2021 Registration No.

Form of Indenture (for [Subordinated] Debt Securities) (open-ended)**

Exhibit 4.3 CITY OFFICE REIT, INC. TO , Trustee Form of Indenture (For [Subordinated]* Debt Securities) Dated as of , 201 TABLE OF CONTENTS ? Page ARTICLE I DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 Section 1.01. Definitions 1 Section 1.02. Compliance Certificates and Opinions 8 Section 1.03. Form of Documents Delivered to Trustee 8 Section 1.04. Acts of Holders 9 Section 1.05. Not

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of

Schedule 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confid

Annual Report - FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file no: 001-36409

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): February 25, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commissio

Subsidiaries of the Company †

Exhibit 21.1 List of Subsidiaries of City Office REIT, Inc. Name of Subsidiary State of Incorporation or Organization 1. City Office REIT Operating Partnership, L.P. Maryland 2. City Office Development, LLC Delaware 3. CIO Management Buyer LLC Delaware 4. City Office Management ULC British Columbia 5. Gibralt Amberglen LLC Delaware 6. Amberglen Properties Limited Partnership Oregon 7. CIO Ambergle

City Office REIT Reports Fourth Quarter and Full Year 2020 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Fourth Quarter and Full Year 2020 Results VANCOUVER – February 25, 2021 – City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter and full year ended December 31, 2020. Fourth Quarter Highlights • Rental and other revenues were $39.8 million. GAAP net loss attributable to common stock

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES 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 Date of Report (Date of earliest event reported): February 10, 2021 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commissio

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)* Name of issuer: City Office REIT Inc. Title of Class of Securities: REIT CUSIP Number: 178587101 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: City Office REIT Inc. Title of Class of Securities: REIT CUSIP Number: 178587101 Date of Event Which Requires Filing of this Statement: January 29, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 1

City Office REIT Reports Third Quarter 2020 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Third Quarter 2020 Results VANCOUVER—November 5, 2020—City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended September 30, 2020. Third Quarter Highlights • GAAP net income attributable to common stockholders was approximately $1.0 million, or $0.02 per fully diluted share; • Co

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES 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 Date of Report (Date of earliest event reported): November 5, 2020 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

Quarterly Report - FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Numbe

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES 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 Date of Report (Date of earliest event reported): August 6, 2020 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission F

City Office REIT Reports Second Quarter 2020 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Second Quarter 2020 Results VANCOUVER—August 6, 2020—City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended June 30, 2020. Second Quarter Highlights • GAAP net loss attributable to common stockholders was approximately $1.4 million, or ($0.03) per fully diluted share; • Core FF

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-36409 CITY OFFIC

CIO / City Office REIT Inc. / ALLIANCEBERNSTEIN L.P. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* City Office REIT Inc (Name of Issuer) REIT (Title of Class of Securities) 178587101 (CUSIP Number) April 30, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-36409 CITY OFFI

City Office REIT Reports First Quarter 2020 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports First Quarter 2020 Results VANCOUVER—May 7, 2020—City Office REIT, Inc. (NYSE: CIO) (the “Company,” “City Office,” “we” or “our”) today announced its results for the quarter ended March 31, 2020. First Quarter Highlights • GAAP net loss attributable to common stockholders was approximately $1.0 million, or ($0.02) per fully diluted share; • Core FFO wa

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES 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 Date of Report (Date of earliest event reported): May 7, 2020 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commission

Submission of Matters to a Vote of Security Holders

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): April 30, 2020 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Com

CIO / City Office REIT Inc. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

CIO / City Office REIT Inc. DEF 14A - - DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): February 26, 2020 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (

Equity Distribution Agreement, dated February 26, 2020, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and Janney Montgomery Scott LLC (incorporated by reference to Exhibit 1.7 to the Company’s Current Report on Form 8-K filed with the Commission on February 26, 2020).

EX-1.7 Exhibit 1.7 CITY OFFICE REIT, INC. Up to 15,000,000 Shares of Common Stock (par value $0.01 per share) Up to 1,000,000 Shares of 6.625% Series A Cumulative Redeemable Preferred Stock (par value $0.01 per share) EQUITY DISTRIBUTION AGREEMENT February 26, 2020 Janney Montgomery Scott LLC 1717 Arch Street Philadelphia, Pennsylvania 19103 Ladies and Gentlemen: City Office REIT, Inc., a Maryland

Equity Distribution Agreement, dated February 26, 2020, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and D.A. Davidson & Co. (incorporated by reference to Exhibit 1.6 to the Company’s Current Report on Form 8-K filed with the Commission on February 26, 2020).

EX-1.6 Exhibit 1.6 CITY OFFICE REIT, INC. Up to 15,000,000 Shares of Common Stock (par value $0.01 per share) Up to 1,000,000 Shares of 6.625% Series A Cumulative Redeemable Preferred Stock (par value $0.01 per share) EQUITY DISTRIBUTION AGREEMENT February 26, 2020 D.A. Davidson & Co. 8 Third Street North Great Falls, Montana 59401 Ladies and Gentlemen: City Office REIT, Inc., a Maryland corporati

Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (incorporated by reference to Exhibit 4.3 to the Company’s Annual Report on Form 10-K filed with the Commission on February 26, 2020).

EX-4.3 Exhibit 4.3 CITY OFFICE REIT, INC. DESCRIPTION OF SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED DESCRIPTION OF STOCK The following is a summary of the rights and preferences of our common stock and preferred stock. This summary does not purport to be complete and is subject to, and is qualified in its entirety by reference to, our charter an

Equity Distribution Agreement, dated February 26, 2020, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and Raymond James & Associates, Inc. (incorporated by reference to Exhibit 1.2 to the Company’s Current Report on Form 8-K filed with the Commission on February 26, 2020).

EX-1.2 Exhibit 1.2 CITY OFFICE REIT, INC. Up to 15,000,000 Shares of Common Stock (par value $0.01 per share) Up to 1,000,000 Shares of 6.625% Series A Cumulative Redeemable Preferred Stock (par value $0.01 per share) EQUITY DISTRIBUTION AGREEMENT February 26, 2020 Raymond James & Associates, Inc. 880 Carillon Parkway St. Petersburg, Florida 33716 Ladies and Gentlemen: City Office REIT, Inc., a Ma

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities To Be Registered Amount To Be Registered Proposed Maximum Aggregate Offering Price Per Share Proposed Maximum Aggregate Offering Price Amount of Registration Fee Common Stock, $0.01 pa

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-236637 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities To Be Registered Amount To Be Registered Proposed Maximum Aggregate Offering Price Per Share Proposed Maximum Aggregate Offering Price Amount of Registration Fee Common Stock, $0.01 par value 15,000,000 $13.74 $206,100,000 $26,752(1) 6.625% Series A Cumul

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): February 26, 2020 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (

Fourth Amendment to the Amended and Restated Agreement of Limited Partnership of City Office REIT Operating Partnership, L.P. (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the Commission on February 26, 2020).

EX-10.1 Exhibit 10.1 FOURTH AMENDMENT TO THE AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF CITY OFFICE REIT OPERATING PARTNERSHIP, L.P. February 26, 2020 THIS FOURTH AMENDMENT TO THE AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF CITY OFFICE REIT OPERATING PARTNERSHIP, L.P. (this “Amendment”), dated as of February 26, 2020, is entered into by CITY OFFICE REIT, INC., a Maryland

Equity Distribution Agreement, dated February 26, 2020, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and BMO Capital Markets Corp. (incorporated by reference to Exhibit 1.3 to the Company’s Current Report on Form 8-K filed with the Commission on February 26, 2020).

EX-1.3 Exhibit 1.3 CITY OFFICE REIT, INC. Up to 15,000,000 Shares of Common Stock (par value $0.01 per share) Up to 1,000,000 Shares of 6.625% Series A Cumulative Redeemable Preferred Stock (par value $0.01 per share) EQUITY DISTRIBUTION AGREEMENT February 26, 2020 BMO Capital Markets Corp. 3 Times Square New York, New York 10036 Ladies and Gentlemen: City Office REIT, Inc., a Maryland corporation

equity distribution agreements

EX-1.1 Exhibit 1.1 CITY OFFICE REIT, INC. Up to 15,000,000 Shares of Common Stock (par value $0.01 per share) Up to 1,000,000 Shares of 6.625% Series A Cumulative Redeemable Preferred Stock (par value $0.01 per share) EQUITY DISTRIBUTION AGREEMENT February 26, 2020 KeyBanc Capital Markets Inc. 127 Public Square, 4th Floor Cleveland, Ohio 44114 Ladies and Gentlemen: City Office REIT, Inc., a Maryla

As filed with the Securities and Exchange Commission on February 26, 2020

As filed with the Securities and Exchange Commission on February 26, 2020 Registration No.

Subsidiaries of the Company †

EX-21.1 Exhibit 21.1 List of Subsidiaries of City Office REIT, Inc. Name of Subsidiary State of Incorporation or Organization 1. City Office REIT Operating Partnership, L.P. Maryland 2. City Office Development, LLC Delaware 3. CIO Management Buyer LLC Delaware 4. City Office Management ULC British Columbia 5. Gibralt Amberglen LLC Delaware 6. Amberglen Properties Limited Partnership Oregon 7. CIO

Equity Distribution Agreement, dated February 26, 2020, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and B. Riley FBR, Inc. (incorporated by reference to Exhibit 1.5 to the Company’s Current Report on Form 8-K filed with the Commission on February 26, 2020).

EX-1.5 Exhibit 1.5 CITY OFFICE REIT, INC. Up to 15,000,000 Shares of Common Stock (par value $0.01 per share) Up to 1,000,000 Shares of 6.625% Series A Cumulative Redeemable Preferred Stock (par value $0.01 per share) EQUITY DISTRIBUTION AGREEMENT February 26, 2020 B. Riley FBR, Inc. 299 Park Ave, 21st Floor New York, New York 10171 Ladies and Gentlemen: City Office REIT, Inc., a Maryland corporat

Annual Report - FORM 10-K

Form 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file no: 001-36409 CITY OFF

City Office REIT Reports Fourth Quarter and Full Year 2019 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Fourth Quarter and Full Year 2019 Results VANCOUVER—February 26, 2020—City Office REIT, Inc. (NYSE: CIO) (the “Company” or “City Office”), today announced its results for the quarter and full year ended December 31, 2019. Fourth Quarter Highlights • GAAP net income attributable to common stockholders was approximately $1.0 million, or $0.02 per fully d

CIO / City Office REIT Inc. S-3ASR - - S-3ASR

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on February 26, 2020 Registration No.

Equity Distribution Agreement, dated February 26, 2020, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and RBC Capital Markets, LLC (incorporated by reference to Exhibit 1.4 to the Company’s Current Report on Form 8-K filed with the Commission on February 26, 2020).

EX-1.4 Exhibit 1.4 CITY OFFICE REIT, INC. Up to 15,000,000 Shares of Common Stock (par value $0.01 per share) Up to 1,000,000 Shares of 6.625% Series A Cumulative Redeemable Preferred Stock (par value $0.01 per share) EQUITY DISTRIBUTION AGREEMENT February 26, 2020 RBC Capital Markets, LLC 200 Vesey Street, 8th Floor New York, New York 10281 Ladies and Gentlemen: City Office REIT, Inc., a Maryland

Form of Indenture (for [Subordinated] Debt Securities) (open-ended)**

EX-4.3 Exhibit 4.3 CITY OFFICE REIT, INC. TO , Trustee Form of Indenture (For [Subordinated]* Debt Securities) Dated as of , 20 1 TABLE OF CONTENTS † Page RECITAL OF THE COMPANY 1 ARTICLE I DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 Section 1.01. Definitions. 1 Section 1.02. Compliance Certificates and Opinions. 6 Section 1.03. Form of Documents Delivered to Trustee. 7 Section 1.04.

CIO / City Office REIT Inc. / ALLIANCEBERNSTEIN L.P. - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* City Office REIT Inc (Name of Issuer) REIT (Title of Class of Securities) 178587101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

CIO / City Office REIT Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2)* Name of issuer: City Office REIT Inc Title of Class of Securities: REIT CUSIP Number: 178587101 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 1

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): January 27, 2020 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (C

performance-based restricted unit award agreement

EX-10.1 Exhibit 10.1 CITY OFFICE REIT, INC. EQUITY INCENTIVE PLAN PERFORMANCE RESTRICTED STOCK UNIT AWARD AGREEMENT This Award Agreement (the “Award Agreement”) is made as of [DATE] by and between City Office REIT, Inc. (the “Company”) and [INDIVIDUAL] (the “Participant”) to effect the grant of Restricted Stock Units under the Company’s Equity Incentive Plan (the “Plan”). Capitalized terms not oth

CIO / City Office REIT Inc. 10-Q - Quarterly Report - FORM 10-Q

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): November 1, 2019 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (C

City Office REIT Reports Third Quarter 2019 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Third Quarter 2019 Results VANCOUVER—November 1, 2019—City Office REIT, Inc. (NYSE: CIO) (the “Company” or “City Office”) today announced its results for the quarter ended September 30, 2019. Third Quarter Highlights • GAAP net loss attributable to common stockholders was approximately $3.0 million, or ($0.07) per fully diluted share; • Core FFO was ap

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K UNITED STATES 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 Date of Report (Date of earliest event reported): October 2, 2019 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Commiss

Underwriting Agreement, dated October 2, 2019, among City Office REIT, Inc. and City Office REIT Operating Partnership, L.P. and BMO Capital Markets Corp., as representative of the several underwriters.

EX-1.1 Exhibit 1.1 EXECUTION VERSION UNDERWRITING AGREEMENT 6,000,000 SHARES CITY OFFICE REIT, INC. COMMON STOCK UNDERWRITING AGREEMENT OCTOBER 2, 2019 BMO Capital Markets Corp. as Representative of the Several Underwriters Named in SCHEDULE I hereto c/o BMO Capital Markets Corp. 3 Times Square New York, NY 10036 Ladies and Gentlemen: City Office REIT, Inc., a Maryland corporation (the “Company”)

6,000,000 Shares City Office REIT, Inc. Common Stock

Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(5) File No. 333-218419 Prospectus Supplement (To prospectus dated June 12, 2017) 6,000,000 Shares City Office REIT, Inc. Common Stock We are offering 6,000,000 shares of our common stock, par value $0.01 per share, in this offering pursuant to this prospectus supplement and the accompanying prospectus. Our common stock is listed

6,000,000 Shares City Office REIT, Inc. Common Stock

Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(5) File No. 333-218419 This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting

Other Events

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): October 2, 2019 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation) (Co

CIO / City Office REIT Inc. / ALLIANCEBERNSTEIN L.P. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* City Office REIT Inc (Name of Issuer) REIT (Title of Class of Securities) 178587101 (CUSIP Number) August 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

CIO / City Office REIT Inc. S-8 - - FORM S-8

Form S-8 As filed with the Securities and Exchange Commission on August 6, 2019 Registration No.

City Office REIT Reports Second Quarter 2019 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Second Quarter 2019 Results VANCOUVER—August 1, 2019—City Office REIT, Inc. (NYSE: CIO) (the “Company” or “City Office”) today announced its results for the quarter ended June 30, 2019. Second Quarter Highlights • GAAP net loss attributable to common stockholders was approximately $0.7 million, or ($0.02) per fully diluted share; • Core FFO was approxi

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): August 1, 2019 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland (State or other jurisdiction of incorporation) 001-36409 (Commission Fil

Amendment No. 1 to Executive Employment Agreement, dated as of July 31, 2019, by and between City Office Management Ltd. and James Farrar.* †

EX-10.3 Exhibit 10.3 AMENDMENT NO. 1 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 1 (the “Amendment”), dated as of July 31, 2019, to the Executive Employment Agreement (the “Agreement”) between City Office Management Ltd. (the “Company”), a wholly-subsidiary of City Office REIT, Inc. (the “REIT”), and Mr. James Farrar, as Chief Executive Officer of the REIT, dated

Amendment No. 1 to Executive Employment Agreement, dated as of July 31, 2019, by and between City Office Management Ltd. and Gregory Tylee.* †

EX-10.4 Exhibit 10.4 AMENDMENT NO. 1 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 1 (the “Amendment”), dated as of July 31, 2019, to the Executive Employment Agreement (the “Agreement”) between City Office Management Ltd. (the “Company”), a wholly-subsidiary of City Office REIT, Inc. (the “REIT”), and Mr. Gregory Tylee, as President and Chief Operating Officer of

June 30, 2019

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

Administrative Services Agreement

EX-10.2 Exhibit 10.2 EXECUTION VERSION ADMINISTRATIVE SERVICES AGREEMENT dated as of July 31, 2019 among CIO ADMINISTRATIVE SERVICES, LLC and CLARITY REAL ESTATE III GP, LIMITED PARTNERSHIP and CLARITY REAL ESTATE VENTURES GP, LIMITED PARTNERSHIP TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.01 Certain Defined Terms 1 ARTICLE II SERVICES AND DURATION 3 Section 2.01 Services 3 Section 2.

Amendment No. 1 to Executive Employment Agreement, dated as of July 31, 2019, by and between City Office Management Ltd. and Anthony Maretic.* †

EX-10.5 Exhibit 10.5 AMENDMENT NO. 1 TO EXECUTIVE EMPLOYMENT AGREEMENT OF CITY OFFICE REIT, INC. This Amendment No. 1 (the “Amendment”), dated as of July 31, 2019, to the Executive Employment Agreement (the “Agreement”) between City Office Management Ltd. (the “Company”), a wholly-subsidiary of City Office REIT, Inc. (the “REIT”), and Mr. Anthony Maretic, as Chief Financial Officer, Secretary and

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

8-K UNITED STATES 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 Date of Report (Date of earliest event reported): May 2, 2019 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or organizati

Amendment No. 1 to the City Officer REIT, Inc. Equity Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the Commission on May 6, 2019).*

EX-10.1 Exhibit 10.1 CITY OFFICE REIT, INC. AMENDMENT TO THE CITY OFFICE REIT, INC. EQUITY INCENTIVE PLAN This Amendment (the “Amendment”) to the City Office REIT, Inc. Equity Incentive Plan (the “Plan”) is adopted by the Board of Directors of City Office REIT, Inc. (the “Company”) on March 7, 2019, to be effective as of January 1, 2019 upon approval of the Amendment by the Company’s stockholders

March 31, 2019

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

City Office REIT Reports First Quarter 2019 Results

EX-99.1 EXHIBIT 99.1 City Office REIT Reports First Quarter 2019 Results VANCOUVER—May 3, 2019—City Office REIT, Inc. (NYSE: CIO) (the “Company” or “City Office”), today announced its results for the quarter ended March 31, 2019. First Quarter Highlights ● GAAP net loss attributable to common stockholders was approximately $2.9 million, or ($0.07) per fully diluted share; ● Core FFO was approximat

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): May 3, 2019 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or organ

CIO / City Office REIT Inc. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

Schedule 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

City Office REIT Appoints Sabah Mirza to its Board as Independent Director

EX-99.1 Exhibit 99.1 City Office REIT Appoints Sabah Mirza to its Board as Independent Director VANCOUVER—March 7, 2019—City Office REIT, Inc. (NYSE: CIO) (“City Office” or the “Company”) today announced the appointment of Sabah Mirza to its Board of Directors. Ms. Mirza joins the Board of Directors with over 20 years of legal, corporate governance and securities experience, most of which have bee

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): March 7, 2019 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or org

CIO / City Office REIT Inc. / VANGUARD GROUP INC Passive Investment

cityofficereitinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1 )* Name of issuer: City Office REIT Inc Title of Class of Securities: REIT CUSIP Number: 178587101 Date of Event Which Requires Filing of this Statement: February 28, 2019 Check the appropriate box to de

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES 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 Date of Report (Date of earliest event reported): February 27, 2019 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or orga

City Office REIT Reports Fourth Quarter and Full Year 2018 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Fourth Quarter and Full Year 2018 Results VANCOUVER—February 27, 2019—City Office REIT, Inc. (NYSE: CIO) (the “Company” or “City Office”), today announced its results for the quarter and full year ended December 31, 2018. Fourth Quarter Highlights • GAAP net loss attributable to common stockholders was approximately $8.7 million, or ($0.22) per fully d

Subsidiaries of the Company †

EX-21.1 Exhibit 21.1 List of Subsidiaries of City Office REIT, Inc. Name of Subsidiary State of Incorporation or Organization 1. City Office REIT Operating Partnership, L.P. Maryland 2. City Office Development, LLC Delaware 3. CIO Management Buyer LLC Delaware 4. City Office Management ULC British Columbia 5. Gibralt Amberglen LLC Delaware 6. Amberglen Properties Limited Partnership Oregon 7. CIO

Form 10-K

Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

CIO / City Office REIT Inc. / ALLIANCEBERNSTEIN L.P. - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* City Office REIT Inc (Name of Issuer) REIT (Title of Class of Securities) 178587101 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

CIO / City Office REIT Inc. / VANGUARD GROUP INC Passive Investment

cityofficereitinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 0 )* Name of issuer: City Office REIT Inc Title of Class of Securities: REIT CUSIP Number: 178587101 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to de

Amendment No. 1 to the Equity Distribution Agreement, dated November 1, 2018, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and Raymond James & Associates, Inc.

EX-1.5 Exhibit 1.5 CITY OFFICE REIT, INC. AMENDMENT NO. 1 TO EQUITY DISTRIBUTION AGREEMENT November 1, 2018 Raymond James & Associates, Inc. 880 Carillon Parkway St. Petersburg, FL 33716 Ladies and Gentlemen: Reference is made to that certain Equity Distribution Agreement, dated June 16, 2017 (the “Equity Distribution Agreement”), between City Office REIT, Inc., a Maryland corporation (the “Compan

Amendment No. 1 to the Equity Distribution Agreement, dated November 1, 2018, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and BMO Capital Markets Corp.

EX-1.6 Exhibit 1.6 CITY OFFICE REIT, INC. AMENDMENT NO. 1 TO EQUITY DISTRIBUTION AGREEMENT November 1, 2018 BMO Capital Markets Corp. 3 Times Square New York, NY 10036 Ladies and Gentlemen: Reference is made to that certain Equity Distribution Agreement, dated June 16, 2017 (the “Equity Distribution Agreement”), between City Office REIT, Inc., a Maryland corporation (the “Company”) and the sole ge

Amendment No. 1 to the Equity Distribution Agreement, dated November 1, 2018, by and among City Office REIT, Inc., City Office Operating Partnership, L.P. and KeyBanc Capital Markets Inc.

EX-1.4 Exhibit 1.4 CITY OFFICE REIT, INC. AMENDMENT NO. 1 TO EQUITY DISTRIBUTION AGREEMENT November 1, 2018 KeyBanc Capital Markets Inc. 127 Public Square, 4th Floor Cleveland, OH 44114 Ladies and Gentlemen: Reference is made to that certain Equity Distribution Agreement, dated June 16, 2017 (the “Equity Distribution Agreement”), between City Office REIT, Inc., a Maryland corporation (the “Company

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K UNITED STATES 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 Date of Report (Date of earliest event reported): November 1, 2018 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or organ

City Office REIT, Inc. Up to 8,000,000 shares of Common Stock Up to 1,000,000 shares of 6.625% Series A Cumulative Redeemable Preferred Stock

Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(5) File No. 333-218419 PROSPECTUS SUPPLEMENT (To prospectus dated June 12, 2017) City Office REIT, Inc. Up to 8,000,000 shares of Common Stock Up to 1,000,000 shares of 6.625% Series A Cumulative Redeemable Preferred Stock We have entered into amendments to our equity distribution agreements with KeyBanc Capital Markets Inc., Ra

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): November 1, 2018 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or

City Office REIT Reports Third Quarter 2018 Results

EX-99.1 Exhibit 99.1 City Office REIT Reports Third Quarter 2018 Results VANCOUVER—November 1, 2018—City Office REIT, Inc. (NYSE: CIO) (the “Company” or “City Office”), today announced its results for the quarter ended September 30, 2018. Third Quarter Highlights • GAAP net loss attributable to common stockholders was approximately $3.2 million, or ($0.08) per fully diluted share; • Core FFO was a

First Amendment to the Administrative Services Agreement, dated October 29, 2018 and effective as of February 1, 2019, by and among City Office Management ULC, Second City Capital II Corporation and Second City Real Estate II Corporation (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed with the Commission on November 1, 2018).

EX-10.1 Exhibit 10.1 FIRST AMENDMENT TO THE ADMINISTRATIVE SERVICES AGREEMENT This First Amendment (this “Amendment”) to the Administrative Services Agreement (the “Agreement”), effective as of October 29, 2018, is by and among City Office Management ULC, a British Columbia unlimited liability company that is a successor to City Office Management Ltd. (“Buyer”), Second City Capital II Corporation,

Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends †

EX-12.1 Exhibit 12.1 Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Share Dividends (In thousands) City Office REIT, Inc. City Office REIT, Inc. Predecessor Nine months ended September 30, 2018 Year ended December 31, 2017 Year ended December 31, 2016 Year ended December 31, 2015 Period from April 21, 2014 to December 31, 2014 Period from January 1, 2014 to April 20, 2014

CIO / City Office REIT Inc. FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES 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 Date of Report (Date of earliest event reported): August 2, 2018 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or organiz

City Office REIT Reports Second Quarter 2018 Results Raises 2018 Core FFO Per Share Guidance and Announces $111 Million of New Acquisition Activity

EX-99.1 Exhibit 99.1 City Office REIT Reports Second Quarter 2018 Results Raises 2018 Core FFO Per Share Guidance and Announces $111 Million of New Acquisition Activity VANCOUVER—August 2, 2018—City Office REIT, Inc. (NYSE: CIO) (the “Company” or “City Office”), today announced its results for the quarter ended June 30, 2018. Second Quarter Highlights ● GAAP net loss attributable to common stockho

CIO / City Office REIT Inc. FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends †

EX-12.1 Exhibit 12.1 Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Share Dividends (In thousands) City Office REIT, Inc. City Office REIT, Inc. Predecessor Six months ended June 30, 2018 Year ended December 31, 2017 Year ended December 31, 2016 Year ended December 31, 2015 Period from April 21, 2014 to December 31, 2014 Period from January 1, 2014 to April 20, 2014 Earni

Submission of Matters to a Vote of Security Holders

Form 8-K UNITED STATES 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 Date of Report (Date of earliest event reported): May 3, 2018 City Office REIT, Inc. (Exact Name of Registrant as Specified in Its Charter) Maryland 001-36409 98-1141883 (State or other jurisdiction of incorporation or organ