# EDGAR Filing Document

**Accession Number:** 0000816153
**File Stem:** 0001999371-26-001400
**Filing Date:** 2026-1
**Character Count:** 2890
**Document Hash:** 7b530effd8eda58cb489ad562998bfa3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-26-001400.hdr.sgml**: 20260121

**ACCESSION NUMBER**: 0001999371-26-001400

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260121

**DATE AS OF CHANGE**: 20260121

**EFFECTIVENESS DATE**: 20260121

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** THORNBURG INVESTMENT TRUST
- **CENTRAL INDEX KEY:** 0000816153

**ORGANIZATION NAME:**
- **EIN:** 061158764
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-14905
- **FILM NUMBER:** 26548877

**BUSINESS ADDRESS:**
- **STREET 1:** 2300 NORTH RIDGETOP ROAD
- **CITY:** SANTA FE
- **STATE:** NM
- **ZIP:** 87506-8361
- **BUSINESS PHONE:** 5059840200

**MAIL ADDRESS:**
- **STREET 1:** 2300 NORTH RIDGETOP ROAD
- **CITY:** SANTA FE
- **STATE:** NM
- **ZIP:** 87506-8361

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** THORNBURG INCOME TRUST
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LIMITED TERM TRUST
- **DATE OF NAME CHANGE:** 19870816

## Series and Classes Contracts Data

### Thornburg Better World International Fund (Series ID: S000050704)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                          | Ticker Symbol | Class ID   |
| Thornburg Better World International Fund - Class A | TBWAX         | C000160136 |
| Thornburg Better World International Fund - Class C | TBWCX         | C000160137 |
| Thornburg Better World International Fund - Class I | TBWIX         | C000160138 |

---

## Series and Classes Contracts Data

### Thornburg Better World International Fund (Series ID: S000050704)

| Class ID   | Class Name                                          | Ticker Symbol   |
|:---|:---|:---|
| C000160136 | Thornburg Better World International Fund - Class A | TBWAX           |
| C000160137 | Thornburg Better World International Fund - Class C | TBWCX           |
| C000160138 | Thornburg Better World International Fund - Class I | TBWIX           |

![](thornburg_001.gif)

**THORNBURG INVESTMENT TRUST** 

**Supplement dated January 21, 2026**

**to the Summary Prospectus, Prospectus and Statement of Additional Information (the "SAI"), each dated February 1, 2025, as supplemented, of Thornburg Better World International Fund (the "Fund"), a series of Thornburg Investment Trust**

Effective January 21, 2026, Joe Salmond will conclude his service as a co-portfolio manager of the Fund. Accordingly, effective as of January 21, 2026, all references to Mr. Salmond in the Summary Prospectus, Prospectus and SAI are deleted.

Shareholders should retain this supplement for future reference. This supplement provides new information beyond that contained in the Fund's Summary Prospectus, Prospectus and SAI and should be read in conjunction therewith.