# EDGAR Filing Document

**Accession Number:** 0000772129
**File Stem:** 0001104659-23-024280
**Filing Date:** 2023-2
**Character Count:** 2250
**Document Hash:** a92adc71a27314fc949bc5e1b433e11d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-024280.hdr.sgml**: 20230222

**ACCESSION NUMBER**: 0001104659-23-024280

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230222

**DATE AS OF CHANGE**: 20230222

**EFFECTIVENESS DATE**: 20230222

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GMO TRUST
- **CENTRAL INDEX KEY:** 0000772129
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-98772
- **FILM NUMBER:** 23652894

**BUSINESS ADDRESS:**
- **STREET 1:** 40 ROWES WHARF
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110
- **BUSINESS PHONE:** 6173467646

**MAIL ADDRESS:**
- **STREET 1:** 40 ROWES WHARF
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GMO CORE TRUST
- **DATE OF NAME CHANGE:** 19900927

## Series and Classes Contracts Data

### GMO Opportunistic Income Fund (Series ID: S000007516)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000020548 | Class VI     | GMODX           |
| C000137450 | Class III    | GMOHX           |
| C000213384 | Class I      | GMOLX           |
| C000213385 | Class R6     | GAAAX           |

Filed pursuant to Rule 497(e)

File Nos. 002-98772 and 811-04347

**GMO TRUST**

**GMO Opportunistic Income Fund** 

**Supplement dated February 22, 2023 to the** 

**Summary Prospectus dated June 30, 2022**

Ben Nabet serves as a portfolio manager of GMO Opportunistic Income Fund.

The section appearing on page 5 of the Summary Prospectus captioned "Management of the Fund" is replaced in its entirety with the following:

**Management of the Fund**

Investment Adviser: Grantham, Mayo, Van Otterloo & Co. LLC

Investment Team and Senior Members of GMO primarily responsible for portfolio management of the Fund:

---

| | | |
|:---|:---|:---|
| **Investment Team** | **Senior Member (Length of Service with <br> Fund)** | **Title** |
| Structured Products | Joe Auth (since 2015) | Portfolio Manager, Structured Products Team, GMO. |
| Structured Products | Ben Nabet (since February 2023) | Portfolio Manager, Structured Products Team, GMO. |

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