Filed pursuant to Rule 497(e)
File Nos. 002-98772 and 811-04347
Supplement dated November 4, 2026 to the
GMO Trust Prospectus relating to GMO Emerging Country Debt Fund and GMO Emerging Country Debt Shares Fund,
dated June 30, 2026, as revised
The sections appearing on page 102 of the Prospectus captioned “Shareholder Fees” and “Example” are replaced in their entirety with the following:
(fees paid directly from your investment)
| Class III | Class IV | Class VI | ||||||||||
| Purchase premium (as a percentage of amount invested) | % | % | % | |||||||||
| Redemption fee (as a percentage of amount redeemed) | % | % | % | |||||||||
1
This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same as those shown in the table. The one year amounts shown reflect the expense waiver noted in the expense table. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
| If you sell your shares | If you do not sell your shares | |||||||||||||||||||||||||||||||
| 1 Year | 3 Years | 5 Years | 10 Years | 1 Year | 3 Years | 5 Years | 10 Years | |||||||||||||||||||||||||
| Class III | $ | $ | $ | $ | $ | $ | $ | $ | ||||||||||||||||||||||||
| Class IV | $ | $ | $ | $ | $ | $ | $ | $ | ||||||||||||||||||||||||
| Class VI | $ | $ | $ | $ | $ | $ | $ | $ | ||||||||||||||||||||||||
The sections appearing on page 107 of the Prospectus captioned “Shareholder Fees” and “Example” are replaced in their entirety with the following:
| Fees paid directly from your investment | Fees paid by the Fund | |||||||
| Purchase premium (as a percentage of amount invested) | % | %1 | ||||||
| Redemption fee (as a percentage of amount redeemed) | % | %1 | ||||||
1
This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same as those shown in the table. The one year amounts shown reflect the expense reimbursement and waiver noted in the expense table. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
| If you sell your shares | If you do not sell your shares | |||||||||||||||
| 1 Year | 3 Years | 1 Year | 3 Years | |||||||||||||
| Class R6 | $ | $ | $ | $ | ||||||||||||
| Class I | $ | $ | $ | $ | ||||||||||||
2