# EDGAR Filing Document

**Accession Number:** 0000770540
**File Stem:** 0001193125-25-313987
**Filing Date:** 2025-12
**Character Count:** 8229
**Document Hash:** 7f9e18c6ba2ca9e666d8fe6ceb4fe9a0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-313987.hdr.sgml**: 20251210

**ACCESSION NUMBER**: 0001193125-25-313987

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251210

**DATE AS OF CHANGE**: 20251210

**EFFECTIVENESS DATE**: 20251210

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Natixis Funds Trust I
- **CENTRAL INDEX KEY:** 0000770540

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

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-98326
- **FILM NUMBER:** 251561599

**BUSINESS ADDRESS:**
- **STREET 1:** 888 BOYLSTON STREET
- **STREET 2:** 8TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02199
- **BUSINESS PHONE:** 617-449-2810

**MAIL ADDRESS:**
- **STREET 1:** 888 BOYLSTON STREET
- **STREET 2:** 8TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02199

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** IXIS Advisor Funds Trust I
- **DATE OF NAME CHANGE:** 20050502

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CDC NVEST FUNDS TRUST I
- **DATE OF NAME CHANGE:** 20010503

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NVEST FUNDS TRUST I
- **DATE OF NAME CHANGE:** 20000202

## Series and Classes Contracts Data

### Natixis U.S. Equity Opportunities Fund (Series ID: S000006658)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class A    | NEFSX         | C000018161 |
| Class C    | NECCX         | C000018163 |
| Class Y    | NESYX         | C000018164 |
| Class T    | NUSTX         | C000188559 |
| Class N    | NESNX         | C000190732 |

---

### Loomis Sayles Core Plus Bond Fund (Series ID: S000006660)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class A    | NEFRX         | C000018168 |
| Class C    | NECRX         | C000018170 |
| Class Y    | NERYX         | C000018171 |
| Class N    | NERNX         | C000125481 |
| Class T    | LCPTX         | C000188560 |

---

### Vaughan Nelson Small Cap Fund (Series ID: S000006661)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class A    | NEFJX         | C000018172 |
| Class C    | NEJCX         | C000018174 |
| Class Y    | NEJYX         | C000069268 |
| Class T    | NEJTX         | C000188561 |
| Class N    | VSCNX         | C000190733 |

---

### Natixis Oakmark International Fund (Series ID: S000030606)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class A    | NOIAX         | C000094872 |
| Class C    | NOICX         | C000094873 |
| Class T    | NIOTX         | C000188562 |
| Class N    | NIONX         | C000190734 |
| Class Y    | NOIYX         | C000190735 |

---

### Mirova Global Megatrends Fund (Series ID: S000053352)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class A    | ESGMX         | C000167845 |
| Class C    | ESGCX         | C000167846 |
| Class Y    | ESGYX         | C000167847 |
| Class T    | ETSGX         | C000188563 |
| Class N    | ESGNX         | C000190736 |

---

## Series and Classes Contracts Data

### Natixis U.S. Equity Opportunities Fund (Series ID: S000006658)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018161 | Class A      | NEFSX           |
| C000018163 | Class C      | NECCX           |
| C000018164 | Class Y      | NESYX           |
| C000188559 | Class T      | NUSTX           |
| C000190732 | Class N      | NESNX           |

### Loomis Sayles Core Plus Bond Fund (Series ID: S000006660)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018168 | Class A      | NEFRX           |
| C000018170 | Class C      | NECRX           |
| C000018171 | Class Y      | NERYX           |
| C000125481 | Class N      | NERNX           |
| C000188560 | Class T      | LCPTX           |

### Vaughan Nelson Small Cap Fund (Series ID: S000006661)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018172 | Class A      | NEFJX           |
| C000018174 | Class C      | NEJCX           |
| C000069268 | Class Y      | NEJYX           |
| C000188561 | Class T      | NEJTX           |
| C000190733 | Class N      | VSCNX           |

### Natixis Oakmark International Fund (Series ID: S000030606)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000094872 | Class A      | NOIAX           |
| C000094873 | Class C      | NOICX           |
| C000188562 | Class T      | NIOTX           |
| C000190734 | Class N      | NIONX           |
| C000190735 | Class Y      | NOIYX           |

### Mirova Global Megatrends Fund (Series ID: S000053352)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000167845 | Class A      | ESGMX           |
| C000167846 | Class C      | ESGCX           |
| C000167847 | Class Y      | ESGYX           |
| C000188563 | Class T      | ETSGX           |
| C000190736 | Class N      | ESGNX           |

Supplement dated December 10, 2025 to the Loomis Sayles Funds Statements of Additional Information, dated February 1, 2025 and May 1, 2025, Natixis Funds Statements of Additional Information, dated February 1, 2025, April 1, 2025, May 1, 2025, June 1, 2025, and the Natixis ETFs Statement of Additional Information, dated May 1, 2025, as may be revised or supplemented from time to time, for the following funds:

---

| | |
|:---|:---|
|  **AEW Global Focused Real Estate Fund** | **Loomis Sayles Limited Term Government and Agency Fund** |
|  **Gateway Fund** | **Loomis Sayles Securitized Asset Fund** |
|  **Gateway Equity Call Premium Fund** | **Loomis Sayles Senior Floating Rate and Fixed Income Fund** |
|  **Loomis Sayles Bond Fund** | **Loomis Sayles Small Cap Growth Fund** |
|  **Loomis Sayles Core Plus Bond Fund** | **Loomis Sayles Small Cap Value Fund** |
|  **Loomis Sayles Fixed Income Fund** | **Loomis Sayles Small/Mid Cap Growth Fund** |
|  **Loomis Sayles Global Allocation Fund** | **Loomis Sayles Strategic Alpha Fund** |
|  **Loomis Sayles Global Bond Fund** | **Loomis Sayles Strategic Income Fund** |
|  **Loomis Sayles Global Growth Fund** | **Mirova Global Megatrends Fund** |
|  **Loomis Sayles Growth Fund** | **Natixis Gateway Quality Income ETF** |
|  **Loomis Sayles High Income Fund** | **Natixis Loomis Sayles Focused Growth ETF** |
|  **Loomis Sayles High Income Opportunities Fund** | **Natixis Oakmark Fund** |
|  **Loomis Sayles Inflation Protected Securities Fund** | **Natixis Oakmark International Fund** |
|  **Loomis Sayles Institutional High Income Fund** | **Natixis U.S. Equity Opportunities Fund** |
|  **Loomis Sayles Intermediate Duration Bond Fund** | **Natixis Vaughan Nelson Select ETF** |
|  **Loomis Sayles International Growth Fund** | **Vaughan Nelson Mid Cap Fund** |
|  **Loomis Sayles Investment Grade Bond Fund** | **Vaughan Nelson Select Fund** |
|  **Loomis Sayles Investment Grade Fixed Income Fund** | **Vaughan Nelson Small Cap Fund** |

---

***Effective December 10, 2025, Peter J. Smail has resigned from the Contract Review Committee and has joined as a member of the Audit Committee. Kirk A. Sykes has resigned from the Audit Committee and has joined as a member of the Contract Review Committee.***

***Accordingly, the table in the sub-section "Trustees and Officers" within the section "Management of the Trust(s)" is hereby updated to reflect the above stated changes. In addition, the list of the members of the Audit Committee, Contract Review Committee and Governance Committee in the sub-section "Leadership and Structure of the Board" within the section "Management of the Trust(s)" is hereby replaced with the following:***

---

| | | |
|:---|:---|:---|
| **Audit Committee** | **Contract Review Committee** | **Governance Committee** |
|  Richard A. Goglia – Chairperson | Maureen B. Mitchell – Chairperson | Martin T. Meehan – Chairperson |
|  James P. Palermo | Edmond J. English | James P. Palermo |
|  Peter J. Smail | Martin T. Meehan | Kirk A. Sykes |
|  Cynthia L. Walker | Kirk A. Sykes | Cynthia L. Walker |

---

As Chairperson of the Board, Mr. Sirri is an *ex officio* member of each Committee.