# EDGAR Filing Document

**Accession Number:** 0001342947
**File Stem:** 0001213900-25-098505
**Filing Date:** 2025-10
**Character Count:** 2559
**Document Hash:** ec634b4be80f3dfd5c25e33e5c888329
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-098505.hdr.sgml**: 20251014

**ACCESSION NUMBER**: 0001213900-25-098505

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251014

**DATE AS OF CHANGE**: 20251014

**EFFECTIVENESS DATE**: 20251014

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BBH Trust
- **CENTRAL INDEX KEY:** 0001342947

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-129342
- **FILM NUMBER:** 251390569

**BUSINESS ADDRESS:**
- **STREET 1:** 140 BROADWAY
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10005
- **BUSINESS PHONE:** 800-575-1265

**MAIL ADDRESS:**
- **STREET 1:** 140 BROADWAY
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10005

## Series and Classes Contracts Data

### BBH Select Series - Mid Cap Fund (Series ID: S000071946)

---

|  |  |  |
|:---|:---|:---|
| Class Name          | Ticker Symbol | Class ID   |
| Class I Shares      | BBMIX         | C000227563 |
| Retail Class Shares | BBMRX         | C000229140 |

---

## Series and Classes Contracts Data

### BBH Select Series - Mid Cap Fund (Series ID: S000071946)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000227563 | Class I Shares      | BBMIX           |
| C000229140 | Retail Class Shares | BBMRX           |

**BBH TRUST**

**BBH SELECT SERIES - MID CAP FUND**

Class I Shares (BBMIX)

Retail Class Shares (BBMRX)

**SUPPLEMENT DATED OCTOBER 14, 2025** 

**TO THE PROSPECTUS** 

**DATED FEBRUARY 28, 2025**

*The following information supplements, and, to the extent inconsistent therewith, supersedes, certain information in the Prospectus.* 

 

On September 10, 2025, the Board of Trustees of the BBH Trust unanimously approved a plan to reorganize the existing BBH Select Series - Mid Cap Fund (the "Fund") into the BBH Select Mid Cap ETF (the "ETF")..

On October 14, 2025, BBH Trust filed an Information Statement with the U.S. Securities and Exchange Commission, available on the Fund's website confirming the plan and providing additional information related to the reorganization. The ETF are expected to begin trading on NYSE on Monday, November 17, 2025.

Prior to the conversion, the Fund anticipates that it will pay a capital gain distribution, if any.

**If you have any questions, please contact your intermediary, relationship manager or the Funds.**

**PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.**