INNOVATIVE INDUSTRIAL PROPERTIES INC 10-Q

ITEM 5. OTHER INFORMATION (c) During the three months ended March 31, 2026 , no director or Section 16 officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading agreement,” as each term is defined in Item 408(a) of Regulation S-K. 40 Table of Contents ITEM 6. EXHIBITS Exhibit Number Description of Exhibit 3.1 Second Articles of Amendment and Restatement of Innovative Industrial Properties, Inc. (including Articles Supplementary classifying Innovative Industrial Properties, Inc.’s 9.0% Series A Cumulative Redeemable Preferred Stock (incorporated by reference to Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q filed by the Company on August 6, 2020). 3.2 Articles Supplementary to the Second Articles of Amendment and Restatement of Innovative Industrial Properties, Inc. (including Articles Supplementary classifying Innovative Industrial Properties, Inc.’s 9.0% Series A Cumulative Redeemable Preferred Stock) (incorporated by reference to Exhibit 3.1 to the Form 8-K filed by the Company on May 24, 2024). 3.3 Third Amended and Restated Bylaws of Innovative Industrial Properties, Inc. (incorporated by Reference to Exhibit 3.1 to the Form 8-K filed by the Company on December 8, 2022). 31.1* Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 31.2* Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 32.1* Certifications of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 101INS* Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. 101.SCH* Inline XBRL Taxonomy Extension Schema Document. 101.CAL* Inline XBRL Taxonomy Extension Calculation Linkbase Document. 101.DEF* Inline XBRL Taxonomy Extension Definition Linkbase Document. 101.LAB* Inline XBRL Taxonomy Extension Label Linkbase Document. 101.PRE* Inline XBRL Taxonomy Extension Presentation Linkbase Document. 104* Cover Page Interactive Date File (formatted as Inline XBRL and contained in Exhibit 101). * Filed herewith. ** Certain schedules and exhibits omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company agrees to furnish supplementally a copy of any omitted schedule or exhibit to the SEC upon request. 41 Table of Contents SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. INNOVATIVE INDUSTRIAL PROPERTIES, INC. By: /s/ Paul Smithers Paul Smithers President, Chief Executive Officer and Director (Principal Executive Officer) By: /s/ David Smith David Smith Chief Financial Officer and Treasurer (Principal Financial Officer) Dated May 5, 2026 42