Company: CIO
Filing Date: 2025-05-16
Form Type: S-8
Source: 0001193125-25-121681
Chunk: 1

Company: City Office REIT, Inc.
Filing Date: 2025-05-16
Form: S-8
Chunk 1
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, $0.01 par value per share (the “Common Stock”) issuable under the Registrant’s Equity Incentive Plan, as amended (the “Plan”), which Common Stock is in addition to the (i) 1,263,580 shares of Common Stock registered under the Plan on the Registration Statement on Form S-8filed by the Registrant on May 5, 2014 (File No. 333-195703)(the “2014 Registration Statement”), (ii) 1,000,000 shares of Common Stock registered under the Plan on the Registration Statement on Form S-8filed by the Registrant on August 6, 2019 (File No. 333-233043)(the “2019 Registration Statement”) and (iii) 1,500,000 shares of Common Stock registered under the Plan on the Registration Statement on Form S-8filed by the Registrant on May 5, 2023 (File No. 333-271666)(the “2023 Registration Statement”). On March 12, 2025, the Registrant filed with the Securities and Exchange Commission (the “Commission”) a definitive proxy statement that included a proposal to adopt an additional amendment to the Plan (the “Third Amendment”) to, among other things, increase the number of shares of Common Stock available for issuance under the Plan by 2,000,000 shares. The proposal to adopt the Third Amendment was approved by the Registrant’s stockholders at its 2025 Annual Meeting on May 1, 2025. This Registration Statement relates to securities of the same class as those to which the 2014 Registration Statement, the 2019 Registration Statement and the 2023 Registration Statement related, and this Registration Statement is submitted in accordance with General Instruction E to Form S-8regarding the Registration of Additional Securities. Pursuant to General Instruction E to Form S-8,the contents of the 2014 Registration Statement, the 2019 Registration Statement and the 2023 Registration Statement, including any amendments thereto or filings incorporated therein, are incorporated herein by reference and made a part of this Registration Statement, except as modified, supplemented or superseded by the information set forth below. PART II

| Item 3. | Incorporation of Certain Documents by Reference. |

The following documents filed with the Commission by the Registrant under the Securities Act and the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are hereby incorporated