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Baillie Gifford US Growth Trust plc ('USA')

Legal Entity Identifier: 213800UM1OUWXZPKE539

Update on Net Asset Value and adjustment to the valuation of Space Exploration Technologies Corporation ('SpaceX')

Today, the Board has been advised by the Manager of an upwards adjustment in the valuation of the Company's holding in SpaceX in line with its policy for valuing private company investments and the confirmation from SpaceX of the initial public offering price. This has been reflected in the Net Asset Value of the Company which as at close of business on 3 June 2026 stands at 343.91p.

Following that adjustment in valuation the proportion of the Company's total assets made up by SpaceX stands at 16.5% at close of business on 3 June 2026, compared with 13.8% on 30 April 2026.

Baillie Gifford & Co Limited

Company Secretaries

4 June 2026

Regulated Information Classification: Additional regulated information required to be disclosed under applicable laws and regulations.