Company: IIPR
Filing Date: 2025-04-29
Form Type: DEFA14A
Source: 0001104659-25-041258
Chunk: 0

Company: INNOVATIVE INDUSTRIAL PROPERTIES INC
Filing Date: 2025-04-29
Form: DEFA14A
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE 14A

Proxy Statement Pursuant
to Section 14(a)

of the Securities Exchange
Act of 1934</div>

Filed by the Registrant x

Filed by a Party other than the Registrant
¨

Check the appropriate box:

| ¨ | Preliminary Proxy Statement                                |
| ¨ | Confidential, for Use of the Commission Only (as permitted 
 by Rule 14a-6(e)(2))                                       |
| ¨ | Definitive Proxy Statement                                 |
| x | Definitive Additional Materials                            |
| ¨ | Soliciting Material Pursuant to § 240.14a-12               |

| INNOVATIVE INDUSTRIAL PROPERTIES, INC.                                   |
| (Name of Registrant as Specified In Its Charter)                         |
| Not Applicable                                                           |
| (Name of Person(s) Filing Proxy Statement, if other than the Registrant) |

Payment of Filing Fee (Check all boxes that apply):

| x | No fee required.                                                                                     |
| ¨ | Fee paid previously with preliminary materials.                                                      |
| ¨ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11. |

| Your Vote Counts!                                                                                                                                                
 Vote in Person at the Meeting*                                                                                                                                   
 June 11, 2025                                                                                                                                                    
 8:00 AM, PDT                                                                                                                                                     
 11440 West Bernardo Court                                                                                                                                        
 Suite 100                                                                                                                                                        
 San Diego, CA 92127                                                                                                                                              
 *Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. 
 Smartphone users                                                                                                                                                 
 Point your camera here and                                                                                                                                       
 vote without entering a                                                                                                                                          
 control number                                                                                                                                                   
 For complete information and to vote, visit www.ProxyVote.com                                                                                                    
 Control #                                                                                                                                                        
 V73968-P29263                                                                                                                                                    
 INNOVATIVE INDUSTRIAL PROPERTIES, INC.                                                                                                                           
 11440 WEST BERNARDO COURT                                                                                                                                        
 SUITE 100                                                                                                                                                        
 SAN DIEGO, CA 92127                                                                                                                                              
 INNOVATIVE INDUSTRIAL PROPERTIES, INC.                                                                                                                           
 2025 Annual Meeting                                                                                                                                              
 Vote by June 10, 2025                                                                                                                                            
 11:59 PM ET                                                                                                                                                      
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