# EDGAR Filing Document

**Accession Number:** 0000836487
**File Stem:** 0001104659-26-013068
**Filing Date:** 2026-2
**Character Count:** 3953
**Document Hash:** 7f4a787e2d4d8e0cebcb35d026180902
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-013068.hdr.sgml**: 20260211

**ACCESSION NUMBER**: 0001104659-26-013068

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260211

**DATE AS OF CHANGE**: 20260211

**EFFECTIVENESS DATE**: 20260211

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MORGAN STANLEY INSTITUTIONAL FUND INC
- **CENTRAL INDEX KEY:** 0000836487

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-23166
- **FILM NUMBER:** 26618520

**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:** MORGAN STANLEY DEAN WITTER INSTITUTIONAL FUND INC
- **DATE OF NAME CHANGE:** 19990329

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MORGAN STANLEY INSTITUTIONAL FUND INC
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### Emerging Markets Leaders Portfolio (Series ID: S000047473)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000149047 | Class I      | MELIX           |
| C000149048 | Class A      | MELAX           |
| C000149050 | Class R6     | MELSX           |
| C000155912 | Class C      | MEMLX           |
| C000226932 | Class IR     | MSIWX           |

**Summary Prospectus and <br>Prospectus Supplement**

**February 11, 2026**

Morgan Stanley Institutional Fund, Inc.

Supplement dated February 11, 2026 to the Morgan Stanley Institutional Fund, Inc. Summary Prospectus and Prospectus dated April 30, 2025, as supplemented

**Emerging Markets Leaders Portfolio (the "Fund")**

Effective immediately, Paul Psaila, Amay Hattangadi and Eric Carlson now serve as portfolio managers of the Fund and Vishal Gupta no longer serves as the portfolio manager of the Fund.

Accordingly, the Summary Prospectus and Prospectus are hereby amended as follows:

The sections of the Summary Prospectus titled "Fund Management—Portfolio Manager" and the Prospectus titled "Fund Summary—Emerging Markets Leaders Portfolio—Fund Management—Portfolio Manager" are hereby deleted in their entirety and replaced with the following:

**Portfolio Managers.** The Fund is managed by members of the Emerging Markets Equity team. Information about the members jointly and primarily responsible for the day-to-day management of the Fund is shown below:

---

| | | |
|:---|:---|:---|
| **Name** | **Title with Adviser/Sub-Adviser** | **Date Began**<br> **Managing Fund** |
| Paul Psaila | Managing Director of the Adviser | February 2026 |
| Amay Hattangadi | Managing Director of MSIM Company | February 2026 |
| Eric Carlson | Managing Director of the Adviser | February 2026 |

---

The section of the Prospectus titled "Fund Management—Portfolio Management—Emerging Markets Leaders Portfolio" is hereby deleted in its entirety and replaced with the following:

**Emerging Markets Leaders Portfolio**

The Fund is managed by members of the Emerging Markets Equity team. The team consists of portfolio managers and analysts. The team works collaboratively when making portfolio decisions. Current members of the team jointly and primarily responsible for the day-to-day management of the Fund are Paul Psaila, Amay Hattangadi and Eric Carlson.

Mr. Psaila has been associated with the Adviser in an investment management capacity since 1994. Mr. Hattangadi has been associated with MSIM Company or its affiliates in an investment management capacity since 1997. Mr. Carlson has been associated with the Adviser in an investment management capacity since 1997.

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

&nbsp;&nbsp;&nbsp;&nbsp;IFIEMLSUMPROPSPT 2/26

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