# EDGAR Filing Document

**Accession Number:** 0000106444
**File Stem:** 0001683863-23-000551
**Filing Date:** 2023-1
**Character Count:** 4675
**Document Hash:** 2ed0ed749dc4e659fbbaf1f4819bfcb8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001683863-23-000551.hdr.sgml**: 20230131

**ACCESSION NUMBER**: 0001683863-23-000551

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230131

**DATE AS OF CHANGE**: 20230130

**EFFECTIVENESS DATE**: 20230131

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** VANGUARD FIXED INCOME SECURITIES FUNDS
- **CENTRAL INDEX KEY:** 0000106444
- **IRS NUMBER:** 231899003
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0131

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-47371
- **FILM NUMBER:** 23569351

**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 FIXED INCOME SECURITIES FUND INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WESTMINSTER BOND FUND INC
- **DATE OF NAME CHANGE:** 19800619

## Series and Classes Contracts Data

### Vanguard Intermediate-Term Investment-Grade Fund (Series ID: S000002586)

---

|  |  |  |
|:---|:---|:---|
| Class Name      | Ticker Symbol | Class ID   |
| Investor Shares | VFICX         | C000007097 |
| Admiral Shares  | VFIDX         | C000007098 |

---

### Vanguard Long-Term Investment-Grade Fund (Series ID: S000002588)

---

|  |  |  |
|:---|:---|:---|
| Class Name      | Ticker Symbol | Class ID   |
| Investor Shares | VWESX         | C000007101 |
| Admiral Shares  | VWETX         | C000007102 |

---

### Vanguard Short-Term Investment-Grade Fund (Series ID: S000002591)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Investor Shares      | VFSTX         | C000007107 |
| Admiral Shares       | VFSUX         | C000007108 |
| Institutional Shares | VFSIX         | C000007109 |

---

## Series and Classes Contracts Data

### Vanguard Intermediate-Term Investment-Grade Fund (Series ID: S000002586)

| Class ID   | Class Name      | Ticker Symbol   |
|:---|:---|:---|
| C000007097 | Investor Shares | VFICX           |
| C000007098 | Admiral Shares  | VFIDX           |

### Vanguard Long-Term Investment-Grade Fund (Series ID: S000002588)

| Class ID   | Class Name      | Ticker Symbol   |
|:---|:---|:---|
| C000007101 | Investor Shares | VWESX           |
| C000007102 | Admiral Shares  | VWETX           |

### Vanguard Short-Term Investment-Grade Fund (Series ID: S000002591)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000007107 | Investor Shares      | VFSTX           |
| C000007108 | Admiral Shares       | VFSUX           |
| C000007109 | Institutional Shares | VFSIX           |

![](vanguard.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

Vanguard Short-Term Investment-Grade Fund

Vanguard Intermediate-Term Investment-Grade Fund

Vanguard Long-Term Investment-Grade Fund

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

**Supplement Dated January 31, 2023, to the Prospectus and Summary Prospectus Dated May 31, 2022**

**Important Changes to Vanguard Short-Term Investment-Grade Fund, Vanguard Intermediate-Term Investment-Grade Fund, and Vanguard Long-Term Investment-Grade Fund (the Funds)**

Effective immediately, Samuel C. Martinez will no longer serve as portfolio manager of the Funds.

Accordingly, all references to Samuel C. Martinez are hereby deleted in their entirety.

The Funds' investment objective, strategies, and policies remain unchanged.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;© 2023 The Vanguard Group, Inc. All rights reserved.

Vanguard Marketing Corporation, Distributor.PS 028A 012023

------

![](vanguard.jpg)

**Vanguard Fixed Income Securities Funds**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

**Supplement Dated January 31, 2023, to the Statement of Additional Information dated May 31, 2022**

**Important Changes to Vanguard Short-Term Investment-Grade Fund, Vanguard Intermediate-Term Investment-Grade Fund, Vanguard Long-Term Investment-Grade Fund, and Vanguard Ultra-Short-Term Bond Fund (the Funds)**

Effective immediately, Samuel C. Martinez will no longer serve as portfolio manager of the Funds.

Accordingly, all references to Samuel C. Martinez are hereby deleted in their entirety.

The Funds' investment objective, strategies, and policies remain unchanged.© 2023 The Vanguard Group, Inc. All rights reserved.

Vanguard Marketing Corporation, Distributor.

**SAI 028B 012023**

------