# EDGAR Filing Document

**Accession Number:** 0000770540
**File Stem:** 0001133228-26-008020
**Filing Date:** 2026-5
**Character Count:** 3439
**Document Hash:** dfdcec32e3b5970cb2a97c606c2ad1b3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-26-008020.hdr.sgml**: 20260505

**ACCESSION NUMBER**: 0001133228-26-008020

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260505

**DATE AS OF CHANGE**: 20260505

**EFFECTIVENESS DATE**: 20260505

**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:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-98326
- **FILM NUMBER:** 26943208

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

### 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           |
| 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           |
| 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           |
| C000190736 | Class N      | ESGNX           |

**NATIXIS FUNDS TRUST I**

May 5, 2026

<u>VIA EDGAR</u>

U.S. Securities and Exchange Commission

100 F Street, NE

Washington, DC 20549

Re: Natixis Funds Trust I <br> (File Nos.: 2-98326 and 811-04323)

Dear Sir or Madam:

Pursuant to Rule 497(j) of the Securities Act of 1933, as amended, I hereby certify that the Statement of Additional Information, dated May 1, 2026, for the Mirova Global Megatrends Fund, Natixis Oakmark International Fund, Natixis U.S. Equity Opportunities Fund and Vaughan Nelson Small Cap Fund, each a series of Natixis Funds Trust I, does not differ from that contained in Post-Effective Amendment No. 166 that was filed electronically on April 29, 2026.

Please direct any questions or comments to me at 617-449-2816.

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| |
|:---|
| Very truly yours, |
| /s/ Jan Ryu Koo |
| Jan Ryu Koo |
| Assistant Secretary |

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