Company: XTIA
Filing Date: 2025-11-13
Form Type: DEFA14A
Source: 0001213900-25-110026
Chunk: 0

Company: XTI Aerospace, Inc.
Filing Date: 2025-11-13
Form: DEFA14A
Chunk 0
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<div align='center'>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</div>

Filed by the Registrant ☒

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                                                      |
| ☒ | Definitive Additional Materials                                                 |
| ☐ | Soliciting Material under §240.14a-12                                           |

<div align='center'>XTI AEROSPACE, INC.

(Name of Registrant as Specified In Its Charter)

______________________________________________________________

(Name of Person(s) Filing Proxy Statement, if other
than the Registrant)</div>

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

| ☒ | 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 |

<div align='center'>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 13, 2025

XTI AEROSPACE, INC.

(Exact name of registrant as specified in its charter)</div>

| Nevada                       |     | 001-36404               |     | 88-0434915         |
| (State or other jurisdiction 
 of incorporation)            |     | -Commission File Number |     | -I.R.S. Employer   
 Identification No. |

| 8123 InterPort Blvd., Suite C            
 Englewood, CO                            |     |     80112 |
| (Address of principal executive offices) |     | -Zip Code |

<div align='center'>Registrant’s telephone number, including area
code: (800) 680-7412

N/A

(Former name or former address, if changed since last
report)</div