# EDGAR Filing Document

**Accession Number:** 0000822632
**File Stem:** 0001193125-26-026403
**Filing Date:** 2026-1
**Character Count:** 2429
**Document Hash:** ef8de3bbd901536b82957b5063c24f87
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-026403.hdr.sgml**: 20260128

**ACCESSION NUMBER**: 0001193125-26-026403

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260128

**DATE AS OF CHANGE**: 20260128

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WILLIAM BLAIR FUNDS
- **CENTRAL INDEX KEY:** 0000822632

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 811-05344
- **FILM NUMBER:** 26569256

**BUSINESS ADDRESS:**
- **STREET 1:** 150 NORTH RIVERSIDE PLAZA
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606
- **BUSINESS PHONE:** 3123648000

**MAIL ADDRESS:**
- **STREET 1:** 150 NORTH RIVERSIDE PLAZA
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WILLIAM BLAIR MUTUAL FUNDS INC
- **DATE OF NAME CHANGE:** 19960112

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BLAIR WILLIAM READY RESERVES INC
- **DATE OF NAME CHANGE:** 19920316

## Series and Classes Contracts Data

### William Blair Global Leaders Fund (Series ID: S000019315)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000053607 | Class N      | WGGNX           |
| C000053608 | Class I      | WGFIX           |
| C000053609 | Class R6     | BGGIX           |

![LOGO](g83063g18p81.jpg)

## William Blair Global Leaders Fund

## Your Investment, Your Vote!
Dear Shareholder,

We are writing to ask for your support in the adjourned special meeting of shareholders scheduled for February 25, 2026. At this meeting, as an investor you will be asked to consider and vote on an important matter that pertains to this Fund. For more detailed information, please log into <u>www.proxyvote.com</u> with your unique control number for a direct link to the proxy statement.

**Your Board recommends that you vote FOR this proposal.** 

Please review the enclosed materials carefully. You can vote by mail, phone or online by following the instructions below.

  <u> *Your unique control number can be found on the* *enclosed ballot in the box marked with an arrow.* </u>

![LOGO](g83063g76d88.jpg)

If you have any questions regarding the proposal or how to cast your vote, please contact our solicitor at **866-705-9913**.

Thank you for your investment—and thank you for voting.

Sincerely,

William Blair Funds

WBADJ26