# EDGAR Filing Document

**Accession Number:** 0001095726
**File Stem:** 0001193125-23-087942
**Filing Date:** 2023-3
**Character Count:** 9550
**Document Hash:** b9d4a52000f6d4f5bf6bd9d8136aa4f4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-087942.hdr.sgml**: 20230331

**ACCESSION NUMBER**: 0001193125-23-087942

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230331

**DATE AS OF CHANGE**: 20230331

**EFFECTIVENESS DATE**: 20230331

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Natixis Funds Trust IV
- **CENTRAL INDEX KEY:** 0001095726
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0131

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-37314
- **FILM NUMBER:** 23787227

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

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

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

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

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NVEST COMPANIES TRUST I
- **DATE OF NAME CHANGE:** 19990925

## Series and Classes Contracts Data

### AEW Global Focused Real Estate Fund (Series ID: S000008059)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class A    | NRFAX         | C000021867 |
| Class C    | NRCFX         | C000021869 |
| Class Y    | NRFYX         | C000021870 |
| Class N    | NRFNX         | C000128774 |
| Class T    | NRETX         | C000188576 |

---

### Natixis Sustainable Future 2015 Fund (Series ID: S000056583)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFBX         | C000179028 |
| Class Y    | nan           | C000179029 |

---

### Natixis Sustainable Future 2060 Fund (Series ID: S000056584)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFMX         | C000179030 |
| Class Y    | nan           | C000179031 |

---

### Natixis Sustainable Future 2020 Fund (Series ID: S000056585)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFDX         | C000179032 |
| Class Y    | nan           | C000179033 |

---

### Natixis Sustainable Future 2025 Fund (Series ID: S000056586)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFEX         | C000179034 |
| Class Y    | nan           | C000179035 |

---

### Natixis Sustainable Future 2030 Fund (Series ID: S000056587)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFFX         | C000179036 |
| Class Y    | nan           | C000179037 |

---

### Natixis Sustainable Future 2035 Fund (Series ID: S000056588)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class Y    | nan           | C000179038 |
| Class N    | NSFGX         | C000179039 |

---

### Natixis Sustainable Future 2040 Fund (Series ID: S000056589)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFHX         | C000179040 |
| Class Y    | nan           | C000179041 |

---

### Natixis Sustainable Future 2045 Fund (Series ID: S000056590)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFJX         | C000179042 |
| Class Y    | nan           | C000179043 |

---

### Natixis Sustainable Future 2050 Fund (Series ID: S000056591)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFKX         | C000179044 |
| Class Y    | nan           | C000179045 |

---

### Natixis Sustainable Future 2055 Fund (Series ID: S000056592)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFLX         | C000179046 |
| Class Y    | nan           | C000179047 |

---

### Natixis Sustainable Future 2065 Fund (Series ID: S000074738)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class N    | NSFOX         | C000232882 |
| Class Y    | nan           | C000232883 |

---

## Series and Classes Contracts Data

### AEW Global Focused Real Estate Fund (Series ID: S000008059)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000021867 | Class A      | NRFAX           |
| C000021869 | Class C      | NRCFX           |
| C000021870 | Class Y      | NRFYX           |
| C000128774 | Class N      | NRFNX           |
| C000188576 | Class T      | NRETX           |

### Natixis Sustainable Future 2015 Fund (Series ID: S000056583)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179028 | Class N      | NSFBX           |
| C000179029 | Class Y      |  |

### Natixis Sustainable Future 2060 Fund (Series ID: S000056584)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179030 | Class N      | NSFMX           |
| C000179031 | Class Y      |  |

### Natixis Sustainable Future 2020 Fund (Series ID: S000056585)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179032 | Class N      | NSFDX           |
| C000179033 | Class Y      |  |

### Natixis Sustainable Future 2025 Fund (Series ID: S000056586)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179034 | Class N      | NSFEX           |
| C000179035 | Class Y      |  |

### Natixis Sustainable Future 2030 Fund (Series ID: S000056587)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179036 | Class N      | NSFFX           |
| C000179037 | Class Y      |  |

### Natixis Sustainable Future 2035 Fund (Series ID: S000056588)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179038 | Class Y      |  |
| C000179039 | Class N      | NSFGX           |

### Natixis Sustainable Future 2040 Fund (Series ID: S000056589)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179040 | Class N      | NSFHX           |
| C000179041 | Class Y      |  |

### Natixis Sustainable Future 2045 Fund (Series ID: S000056590)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179042 | Class N      | NSFJX           |
| C000179043 | Class Y      |  |

### Natixis Sustainable Future 2050 Fund (Series ID: S000056591)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179044 | Class N      | NSFKX           |
| C000179045 | Class Y      |  |

### Natixis Sustainable Future 2055 Fund (Series ID: S000056592)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000179046 | Class N      | NSFLX           |
| C000179047 | Class Y      |  |

### Natixis Sustainable Future 2065 Fund (Series ID: S000074738)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000232882 | Class N      | NSFOX           |
| C000232883 | Class Y      |  |

*Supplement dated March 31, 2023 to the Statements of Additional Information, dated, May 1, 2022 and June 1, 2022, as may be revised or supplemented from time to time, for the following Funds:* 

**Loomis Sayles Bond Fund** 

**Loomis Sayles Investment Grade Fixed Income Fund** 

**Effective immediately, the third paragraph in the section "Portfolio Holdings Information" is revised and amended to delete the reference to Electra Information Systems, Inc. and to include the following:** 

Gresham Technologies plc (daily disclosure of full portfolio holdings) for the purpose of performing certain electronic reconciliations of portfolio holdings of the Funds.

---

| | |
|:---|:---|
| **AEW Global Focused Real Estate Fund** | **Loomis Sayles Strategic Income Fund** |
| **Loomis Sayles High Income Fund** | **Natixis Oakmark Fund** |
| **Loomis Sayles International Growth Fund** | **Natixis Oakmark International Fund** |
| **Loomis Sayles Investment Grade Bond Fund** | **Natixis U.S. Equity Opportunities Fund** |
| **Loomis Sayles Strategic Alpha Fund** |  |

---

**Effective immediately, the fourth paragraph in the section "Portfolio Holdings Information" is revised and amended to delete the reference to Electra Information Systems, Inc. and to include the following:** 

Gresham Technologies plc (daily disclosure of full portfolio holdings) for the purpose of performing certain electronic reconciliations of portfolio holdings of the Funds.

---

| |
|:---|
|  **Natixis Sustainable Future 2015 Fund**<sup>®</sup> |
|  **Natixis Sustainable Future 2020 Fund**<sup>®</sup><br> **Natixis Sustainable Future 2050 Fund**<sup>®</sup> |
|  **Natixis Sustainable Future 2025 Fund**<sup>®</sup><br> **Natixis Sustainable Future 2055 Fund**<sup>®</sup> |
|  **Natixis Sustainable Future 2030 Fund**<sup>®</sup><br> **Natixis Sustainable Future 2060 Fund**<sup>®</sup> |
|  **Natixis Sustainable Future 2035 Fund**<sup>®</sup><br> **Natixis Sustainable Future 2065 Fund**<sup>®</sup> |
|  **Natixis Sustainable Future 2040 Fund**<sup>®</sup> |

---

**Effective immediately, the fifth paragraph in the section "Portfolio Holdings Information" is revised and amended to delete the reference to Electra Information Systems, Inc. and to include the following:** 

Gresham Technologies plc (daily disclosure of full portfolio holdings) for the purpose of performing certain electronic reconciliations of portfolio holdings (Harris Associates and Loomis Sayles sleeves).