# EDGAR Filing Document

**Accession Number:** 0000857490
**File Stem:** 0001193125-25-214299
**Filing Date:** 2025-9
**Character Count:** 4911
**Document Hash:** 865ebf4ad19c9f25ee0a9b4cf5f15f24
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-214299.hdr.sgml**: 20250924

**ACCESSION NUMBER**: 0001193125-25-214299

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250924

**DATE AS OF CHANGE**: 20250924

**EFFECTIVENESS DATE**: 20250924

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** VANGUARD VARIABLE INSURANCE FUNDS
- **CENTRAL INDEX KEY:** 0000857490

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

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-32216
- **FILM NUMBER:** 251335446

**BUSINESS ADDRESS:**
- **STREET 1:** PO BOX 2600
- **STREET 2:** V26
- **CITY:** VALLEY FORGE
- **STATE:** PA
- **ZIP:** 19482
- **BUSINESS PHONE:** 6106691000

**MAIL ADDRESS:**
- **STREET 1:** PO BOX 2600
- **STREET 2:** V26
- **CITY:** VALLEY FORGE
- **STATE:** PA
- **ZIP:** 19482

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VANGUARD VARIABLE INSURANCE FUND
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VANGUARD VARIABLE INSURANCE FUND INC
- **DATE OF NAME CHANGE:** 19910505

## Series and Classes Contracts Data

### Money Market Portfolio (Series ID: S000004391)

---

|  |  |
|:---|:---|
| Class Name             | Class ID   |
| Money Market Portfolio | C000012147 |

---

## Series and Classes Contracts Data

### Money Market Portfolio (Series ID: S000004391)

| Class ID   | Class Name             | Ticker Symbol   |
|:---|:---|:---|
| C000012147 | Money Market Portfolio |  |

![](gplpd16zuog32eux4gbob.jpg)

Vanguard Variable Insurance Funds—Money Market Portfolio

**Supplement Dated September 24, 2025, to the Prospectus and Summary Prospectus Dated April 29, 2025**

**Important Changes to Vanguard Variable Insurance Funds—Money Market Portfolio (the Portfolio)**

Effective today, Nafis T. Smith has been added as portfolio manager of the Portfolio. Mr. Smith replaces John C. Lanius, who has retired from Vanguard and will no longer serve as portfolio manager of the Portfolio.

The Portfolio's investment objective, strategies, and policies remain unchanged.

**Prospectus Text Changes**

The following text replaces the information for Mr. Lanius under the heading "Investment Advisor" in the **Portfolio Summary** section:

**Nafis T. Smith**, Portfolio Manager and Principal of Vanguard. He has managed the Portfolio since September 2025.

The following text replaces the information for Mr. Lanius under the heading "Investment Advisor" in the **More on the Portfolio** section:

**Nafis T. Smith**, CFA, Portfolio Manager and Principal of Vanguard. He has been with Vanguard since 2003, has worked in investment management since 2005, has managed investment portfolios since 2010, and has managed the Portfolio since September 2025. Education: B.A., Cornell University; M.B.A., Wharton School University of Pennsylvania.

CFA<sup>®</sup> is a registered trademark owned by CFA Institute.© 2025 The Vanguard Group, Inc. All rights reserved. PS 104A 092025 <br> Vanguard Marketing Corporation, Distributor.

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![](gj7hhgrkjoo4739kyk2mx.jpg)

**Vanguard Variable Insurance Funds**

**Supplement Dated September 24, 2025, to the Statement of Additional Information Dated April 29, 2025**

**Important Changes to Vanguard Variable Insurance Funds—Money Market Portfolio (the Portfolio)**

Effective today, Nafis T. Smith has been added as portfolio manager of the Portfolio. Mr. Smith replaces John C. Lanius, who has retired from Vanguard and will no longer serve as portfolio manager of the Portfolio.

The Portfolio's investment objective, strategies, and policies remain unchanged.

**Statement of Additional Information Text Changes**

In the **Investment Advisory and Other Services** section, the following text and table replace the information for Mr. Lanius under the sub-heading "**1. Other Accounts Managed**"on page B-85:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| <br>**Portfolio Manager** |  | <br>**No. of**<br>**accounts** | <br>**Total assets** | <br>**No. of accounts with**<br>**performance-based**<br>**fees** | **Total assets in**<br>**accounts with**<br>**performance-based**<br>**fees** |
| Nafis T. Smith<sup>1</sup> | Registered investment companies | 2 | $219B | 0 | $0 |
|  | Other pooled investment vehicles | 0 | $0 | 0 | $0 |
|  | Other accounts | 0 | $0 | 0 | $0 |

---

1 Information provided as of August 31, 2025.

Within the same section, the following text replaces the information for Mr. Lanius under the sub-heading "**4. Ownership of Securities in the Portfolios**" on page B-87:

As of August 31, 2025, Mr. Smith did not invest in the Portfolio.

---

| | |
|:---|:---|
|© 2025 The Vanguard Group, Inc. All rights reserved. | **SAI 064A 092025** |
| Vanguard Marketing Corporation, Distributor. | **SAI 064A 092025** |

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