# EDGAR Filing Document

**Accession Number:** 0001273878
**File Stem:** 0001273878-26-000013
**Filing Date:** 2026-3
**Character Count:** 2889
**Document Hash:** 44e3e86224c9c78ddff4a3031e873b54
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001273878-26-000013.hdr.sgml**: 20260325

**ACCESSION NUMBER**: 0001273878-26-000013

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260325

**DATE AS OF CHANGE**: 20260325

**EFFECTIVENESS DATE**: 20260325

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** VANGUARD CMT FUNDS
- **CENTRAL INDEX KEY:** 0001273878

**ORGANIZATION NAME:**
- **EIN:** 200961006

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-111362
- **FILM NUMBER:** 26788582

**BUSINESS ADDRESS:**
- **STREET 1:** PO BOX 2600
- **STREET 2:** V26
- **CITY:** MALVERN
- **STATE:** PA
- **ZIP:** 19355
- **BUSINESS PHONE:** 610-669-1000

**MAIL ADDRESS:**
- **STREET 1:** PO BOX 2600
- **STREET 2:** V26
- **CITY:** MALVERN
- **STATE:** PA
- **ZIP:** 19355

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VANGUARD CASH MANAGEMENT TRUST
- **DATE OF NAME CHANGE:** 20031218

## Series and Classes Contracts Data

### Vanguard Market Liquidity Fund (Series ID: S000002575)

---

|  |  |
|:---|:---|
| Class Name                     | Class ID   |
| Vanguard Market Liquidity Fund | C000007078 |

---

### Vanguard Municipal Low Duration Fund (Series ID: S000002576)

---

|  |  |
|:---|:---|
| Class Name                           | Class ID   |
| Vanguard Municipal Low Duration Fund | C000007079 |

---

## Series and Classes Contracts Data

### Vanguard Market Liquidity Fund (Series ID: S000002575)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000007078 | Vanguard Market Liquidity Fund |  |

### Vanguard Municipal Low Duration Fund (Series ID: S000002576)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000007079 | Vanguard Municipal Low Duration Fund |  |

![](vanguard.jpg)

**Vanguard CMT Funds**

**Supplement Dated March 25, 2026, to the Statement of Additional Information Dated December 19, 2025**

In the Portfolio Transactions section, the information in the broker-dealer table is replaced in its entirety with the table below. The table shows the securities of regular brokers or dealers, (or their parent companies) as defined under applicable federal securities regulations, that each Fund held during the fiscal year ended August 31, 2025. The aggregate value of those holdings is as of August 31, 2025.

---

| | | |
|:---|:---|:---|
| **Vanguard Fund** | **Regular Broker or Dealer (or Parent)** | **Aggregate Holdings** |
| Vanguard Market Liquidity Fund |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — |
| Vanguard Municipal Low Duration Fund | J.P. Morgan Securities LLC | &nbsp;&nbsp; $42050000 |

---

© 2026 The Vanguard Group, Inc. All rights reserved.

Vanguard Marketing Corporation, Distributor.

**SAI 1142B 032026**

------