# EDGAR Filing Document

**Accession Number:** 0001048702
**File Stem:** 0001680359-25-000741
**Filing Date:** 2025-9
**Character Count:** 4125
**Document Hash:** 00ca7bcb4ea97a5ff64a5a3b6cd6c231
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001680359-25-000741.hdr.sgml**: 20250909

**ACCESSION NUMBER**: 0001680359-25-000741

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250909

**DATE AS OF CHANGE**: 20250909

**EFFECTIVENESS DATE**: 20250909

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NATIONWIDE MUTUAL FUNDS
- **CENTRAL INDEX KEY:** 0001048702

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-40455
- **FILM NUMBER:** 251301902

**BUSINESS ADDRESS:**
- **STREET 1:** ONE NATIONWIDE PLAZA
- **STREET 2:** MAIL CODE 05-02-210
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
- **BUSINESS PHONE:** 614-435-5749

**MAIL ADDRESS:**
- **STREET 1:** ONE NATIONWIDE PLAZA
- **STREET 2:** MAIL CODE 05-02-210
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GARTMORE MUTUAL FUNDS
- **DATE OF NAME CHANGE:** 20020125

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NATIONWIDE MUTUAL FUNDS
- **DATE OF NAME CHANGE:** 19991015

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NATIONWIDE INVESTING FOUNDATION III
- **DATE OF NAME CHANGE:** 19971029

## Series and Classes Contracts Data

### Nationwide Bond Index Fund (Series ID: S000004995)

---

|  |  |  |
|:---|:---|:---|
| Class Name                  | Ticker Symbol | Class ID   |
| Class A                     | GBIAX         | C000013548 |
| Class R6                    | GBXIX         | C000013550 |
| Class R                     | nan           | C000033114 |
| Institutional Service Class | NWXOX         | C000175977 |

---

## Series and Classes Contracts Data

### Nationwide Bond Index Fund (Series ID: S000004995)

| Class ID   | Class Name                  | Ticker Symbol   |
|:---|:---|:---|
| C000013548 | Class A                     | GBIAX           |
| C000013550 | Class R6                    | GBXIX           |
| C000033114 | Class R                     |  |
| C000175977 | Institutional Service Class | NWXOX           |

---

| |
|:---|
| **NATIONWIDE MUTUAL FUNDS** |
| Nationwide Bond Index Fund |
| Nationwide International Index Fund |
| Nationwide Mid Cap Market Index Fund |
| Nationwide NYSE Arca Tech 100 Index Fund |
| Nationwide S&P 500 Index Fund |
| Nationwide Small Cap Index Fund |

---

#### Supplement dated September 9, 2025

#### to the Prospectus dated February 28, 2025

*Capitalized terms and certain other terms used in this supplement, unless otherwise defined in this supplement, have the meanings assigned to them in the Prospectus.*

#### Nationwide Bond Index Fund (the "Fund")

Effective immediately, the Prospectus is amended as follows:

<br> 1. The table under the section entitled "Portfolio Managers" on page 5 of the Prospectus is deleted in its entirety and replaced with the following:

---

| | | |
|:---|:---|:---|
| **Portfolio Manager**  | **Title**  | **Length of Service**  |
| James Mauro | Managing Director and Portfolio Manager | Since 2021 |
| Jonathan Graves | Managing Director and Portfolio Manager | Since 2025 |
| Marcus Tom | Director and Portfolio Manager | Since 2025 |

---

<br> 2. The information relating to the Fund under the heading "Portfolio Management" on page 40 of the Prospectus is deleted in its entirety and replaced with the following:

The Fund is managed by a team comprising James Mauro, Jonathan Graves and Marcus Tom. This team is responsible for the day-to-day management of the Fund and the selection of the Fund's investments.

Mr. Mauro is a Managing Director and Global Head of Index Fixed Income Portfolio Management of BlackRock, which he joined in 2010.

Mr. Graves is a Managing Director and Head of Credit within the Index Fixed Income Portfolio Management team in the Americas. He joined BlackRock in 2013.

Mr. Tom is a Director and Head of the Index Fixed Income Portfolio Management team in Atlanta. He joined BlackRock in 2019.

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE