# EDGAR Filing Document

**Accession Number:** 0000857490
**File Stem:** 0001683863-25-005673
**Filing Date:** 2025-7
**Character Count:** 3055
**Document Hash:** 6b9e88c315baefca969bef1a1659f631
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001683863-25-005673.hdr.sgml**: 20250710

**ACCESSION NUMBER**: 0001683863-25-005673

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 11

**FILED AS OF DATE**: 20250710

**DATE AS OF CHANGE**: 20250710

**EFFECTIVENESS DATE**: 20250710

**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:** 251114945

**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

### Short-Term Investment-Grade Portfolio (Series ID: S000004393)

---

|  |  |
|:---|:---|
| Class Name                            | Class ID   |
| Short-Term Investment-Grade Portfolio | C000012149 |

---

## Series and Classes Contracts Data

### Short-Term Investment-Grade Portfolio (Series ID: S000004393)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000012149 | Short-Term Investment-Grade Portfolio |  |

?xml version='1.0' encoding='ASCII'? 497

![](vanguard.jpg)

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Vanguard Variable Insurance Funds – Short-Term Investment-Grade Portfolio

**Supplement Dated July 10, 2025, to the Prospectus and Summary Prospectus Dated April 29, 2025**

**Prospectus Text Changes for Vanguard Variable Insurance Funds – Vanguard Short-Term Investment-Grade Portfolio** 

The paragraph under the heading "Principal Investment Strategies" in the prospectus is replaced with the following:

Vanguard Variable Insurance Funds Short-Term Investment-Grade Portfolio (the Portfolio) invests in a variety of high-quality and medium-quality fixed income securities. Under normal circumstances, at least 80% of the Portfolio's assets will be invested in investment-grade securities (those of medium and high quality). The Portfolio's investments will have a dollar-weighted average maturity of 1 to 4 years. Investment-grade fixed income securities are those rated the equivalent of Baa3 and above by Moody's Ratings or another independent rating agency; or, if unrated, are determined to be of comparable quality by the Portfolio's advisor.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;© 2025 The Vanguard Group, Inc. All rights reserved.

Vanguard Marketing Corporation, Distributor.PS 274A 072025

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