# EDGAR Filing Document

**Accession Number:** 0000001750
**File Stem:** 0001140361-25-028760
**Filing Date:** 2025-8
**Character Count:** 2246
**Document Hash:** c99fbcc4d299d47569c734c94c49a801
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-028760.hdr.sgml**: 20250805

**ACCESSION NUMBER**: 0001140361-25-028760

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20250805

**DATE AS OF CHANGE**: 20250805

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AAR CORP
- **CENTRAL INDEX KEY:** 0000001750
- **STANDARD INDUSTRIAL CLASSIFICATION:** AIRCRAFT & PARTS [3720]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 362334820
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0531

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-06263
- **FILM NUMBER:** 251183478

**BUSINESS ADDRESS:**
- **STREET 1:** 1100 N WOOD DALE RD
- **CITY:** WOOD DALE
- **STATE:** IL
- **ZIP:** 60191
- **BUSINESS PHONE:** 6302272000

**MAIL ADDRESS:**
- **STREET 1:** 1100 N WOOD DALE RD
- **CITY:** WOOD DALE
- **STATE:** IL
- **ZIP:** 60191

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALLEN AIRCRAFT RADIO INC
- **DATE OF NAME CHANGE:** 19700204

#### **TABLE OF CONTENTS**
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>

### UNITED STATES<br>

### SECURITIES AND EXCHANGE COMMISSION<br>

### Washington, D.C. 20549

### SCHEDULE 14A<br>

#### PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE<br>

#### SECURITIES EXCHANGE ACT OF 1934
Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐ <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>

Check the appropriate box:

☐<br> Preliminary Proxy Statement

☐ **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** 

☐ Definitive Proxy Statement

&nbsp;&nbsp;&nbsp;&nbsp;☒ Definitive Additional Materials

☐<br> Soliciting Material under §240.14a-12

#### <br>

### AAR CORP. <br>

#### (Name of Registrant as Specified In Its Charter)<br>

#### (Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check all boxes that apply):

☒<br> No fee required.

☐<br> Fee paid previously with preliminary materials.

☐<br> Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

------

![](edge20047181x772_nc01.jpg)

------

![](edge20047181x772_nc02.jpg)

------