# EDGAR Filing Document

**Accession Number:** 0000353905
**File Stem:** 0001680359-25-000569
**Filing Date:** 2025-7
**Character Count:** 5475
**Document Hash:** 6cad2aafc88ba6811cde174ace0fcc90
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001680359-25-000569.hdr.sgml**: 20250702

**ACCESSION NUMBER**: 0001680359-25-000569

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250702

**DATE AS OF CHANGE**: 20250702

**EFFECTIVENESS DATE**: 20250702

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NATIONWIDE VARIABLE INSURANCE TRUST
- **CENTRAL INDEX KEY:** 0000353905

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

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-73024
- **FILM NUMBER:** 251099389

**BUSINESS ADDRESS:**
- **STREET 1:** ONE NATIONWIDE PLAZA
- **STREET 2:** MAIL CODE 5-02-210
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
- **BUSINESS PHONE:** 614-435-5749

**MAIL ADDRESS:**
- **STREET 1:** ONE NATIONWIDE PLAZA
- **STREET 2:** MAIL CODE 5-02-210
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GARTMORE VARIABLE INSURANCE TRUST
- **DATE OF NAME CHANGE:** 20020125

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NATIONWIDE SEPARATE ACCOUNT TRUST
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NATIONWIDE SEPARATE ACCOUNT MONEY MARKET TRUST
- **DATE OF NAME CHANGE:** 19860226

## Series and Classes Contracts Data

### NVIT Mid Cap Index Fund (Series ID: S000005410)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class I    | C000014721 |
| Class II   | C000014722 |
| Class Y    | C000034093 |

---

### NVIT S&P 500 Index Fund (Series ID: S000005416)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class IV   | C000014735 |
| Class I    | C000033129 |
| Class II   | C000033130 |
| Class Y    | C000034094 |

---

### NVIT International Index Fund (Series ID: S000012313)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class Y    | C000033505 |
| Class II   | C000033506 |
| Class VIII | C000033509 |
| Class I    | C000139945 |

---

### NVIT Small Cap Index Fund (Series ID: S000012314)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class II   | C000033510 |
| Class Y    | C000033512 |

---

## Series and Classes Contracts Data

### NVIT Mid Cap Index Fund (Series ID: S000005410)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000014721 | Class I      |  |
| C000014722 | Class II     |  |
| C000034093 | Class Y      |  |

### NVIT S&P 500 Index Fund (Series ID: S000005416)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000014735 | Class IV     |  |
| C000033129 | Class I      |  |
| C000033130 | Class II     |  |
| C000034094 | Class Y      |  |

### NVIT International Index Fund (Series ID: S000012313)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000033505 | Class Y      |  |
| C000033506 | Class II     |  |
| C000033509 | Class VIII   |  |
| C000139945 | Class I      |  |

### NVIT Small Cap Index Fund (Series ID: S000012314)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000033510 | Class II     |  |
| C000033512 | Class Y      |  |

---

| |
|:---|
| **NATIONWIDE VARIABLE INSURANCE TRUST** |
| NVIT Bond Index Fund |
| NVIT International Index Fund |
| NVIT Mid Cap Index Fund |
| NVIT S&P 500 Index Fund |
| NVIT Small Cap Index Fund |

---

#### Supplement dated July 2, 2025

#### to the Prospectus dated April 30, 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.*

#### NVIT International Index Fund, NVIT Mid Cap Index Fund, NVIT S&P 500 Index Fund and NVIT Small Cap Index Fund (collectively, the "Funds")

Effective immediately, the Prospectus is amended as follows:

<br> 1. The tables under the sections entitled "Portfolio Managers" on pages 8, 11, 14 and 17 of the Prospectus are each deleted in their entirety and replaced with the following:

---

| | | |
|:---|:---|:---|
| **Portfolio Manager**  | **Title**  | **Length of Service**  |
| Jennifer Hsui, CFA | Managing Director, Portfolio Manager | Since 2019 |
| Peter Sietsema | Director, Senior Portfolio Manager | Since 2023 |
| Matt Waldron, CFA | Managing Director | Since 2025 |
| Steven White | Director | Since 2025 |

---

<br> 2. The information relating to the Funds under the heading "Portfolio Management" on page 31 of the Prospectus is deleted in its entirety and replaced with the following:

Each Fund is managed by a team comprising Jennifer Hsui, CFA, Peter Sietsema, Matt Waldron, CFA and Steven White. This team is responsible for the day-to-day management of the Funds and the selection of the Funds' investments.

Ms. Hsui is a Managing Director and Chief Investment Officer for Global Portfolio Management within BlackRock's ETF and Index Equity team. Her service with the firm dates back to 2006.

Mr. Sietsema is a Director, Senior Portfolio Manager and a member of BlackRock's ETF and index investments team. His service with the firm dates back to 2007.

Mr. Waldron is a Managing Director and U.S. Head of International Portfolio Management. His service with the firm dates back to 2011.

Mr. White is a Director and Head of the Active Risk Index ETF team and co-CIO for Index Equity Investments. His service with the firm dates back to 2011.

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE