# EDGAR Filing Document

**Accession Number:** 0000741375
**File Stem:** 0001104659-26-022134
**Filing Date:** 2026-3
**Character Count:** 4094
**Document Hash:** 9b981ab71955931b9841f52ade3a041a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-022134.hdr.sgml**: 20260302

**ACCESSION NUMBER**: 0001104659-26-022134

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260302

**DATE AS OF CHANGE**: 20260302

**EFFECTIVENESS DATE**: 20260302

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MORGAN STANLEY INSTITUTIONAL FUND TRUST
- **CENTRAL INDEX KEY:** 0000741375

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** PA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-89729
- **FILM NUMBER:** 26706549

**BUSINESS ADDRESS:**
- **STREET 1:** 1585 BROADWAY
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10036
- **BUSINESS PHONE:** 800-548-7786

**MAIL ADDRESS:**
- **STREET 1:** 1585 BROADWAY
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10036

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MAS FUNDS /MA/
- **DATE OF NAME CHANGE:** 19960724

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MAS FUNDS INC
- **DATE OF NAME CHANGE:** 19931227

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MAS FUNDS
- **DATE OF NAME CHANGE:** 19930927

## Series and Classes Contracts Data

### Corporate Bond Portfolio (Series ID: S000004118)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| Class A Shares | MIGAX         | C000011548 |
| Class I Shares | MPFDX         | C000011549 |
| Class L Shares | MGILX         | C000065127 |
| Class C        | MSBOX         | C000155931 |

---

### Global Strategist Portfolio (Series ID: S000004124)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| Class A Shares | MBAAX         | C000011555 |
| Class I Shares | MPBAX         | C000011556 |
| Class L        | MSDLX         | C000113792 |
| Class C        | MSSOX         | C000155933 |
| Class R6       | MGPOX         | C000156275 |

---

### Discovery Portfolio (Series ID: S000004127)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| Class A Shares | MACGX         | C000011562 |
| Class I Shares | MPEGX         | C000011563 |
| Class L        | MSKLX         | C000113795 |
| Class R6       | MMCGX         | C000129401 |
| Class C        | MSMFX         | C000155934 |

---

## Series and Classes Contracts Data

### Corporate Bond Portfolio (Series ID: S000004118)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000011548 | Class A Shares | MIGAX           |
| C000011549 | Class I Shares | MPFDX           |
| C000065127 | Class L Shares | MGILX           |
| C000155931 | Class C        | MSBOX           |

### Global Strategist Portfolio (Series ID: S000004124)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000011555 | Class A Shares | MBAAX           |
| C000011556 | Class I Shares | MPBAX           |
| C000113792 | Class L        | MSDLX           |
| C000155933 | Class C        | MSSOX           |
| C000156275 | Class R6       | MGPOX           |

### Discovery Portfolio (Series ID: S000004127)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000011562 | Class A Shares | MACGX           |
| C000011563 | Class I Shares | MPEGX           |
| C000113795 | Class L        | MSKLX           |
| C000129401 | Class R6       | MMCGX           |
| C000155934 | Class C        | MSMFX           |

**Prospectus Supplement**

**March 2, 2026**

Morgan Stanley Institutional Fund Trust

Supplement dated March 2, 2026 to the Morgan Stanley Institutional Fund Trust Prospectuses dated January 28, 2026

**Corporate Bond Portfolio<br>Discovery Portfolio<br>Global Strategist Portfolio**

Effective February 27, 2026, shares of the E\*Trade No Fee Index Funds held in Related Accounts (as defined in each Prospectus) are included for purposes of calculating the Class A share right of accumulation, subject to the requirements set forth in each Prospectus.

**Please retain this supplement for future reference.**

&nbsp;&nbsp;&nbsp;&nbsp;IFTROAPROSPT 2/26

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