Interim Dividend and Notice of Half Year Results

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PANTHEON INFRASTRUCTURE PLC

First Interim Dividend Declaration and Notice of Half Year Results

18 September 2026

First Interim Dividend Declaration

The Board of Pantheon Infrastructure Plc (the "Company"), the listed global infrastructure fund, is pleased to announce that it has declared its first interim dividend of 2.249 pence per Ordinary Share for the year ending 31 December 2026 (the "First Dividend").

The First Dividend will be paid on 23 October 2026 to Ordinary Shareholders on the register at the close of business on 2 October 2026 (being the record date for these purposes). The Ordinary Shares will be marked ex-dividend on 1 October 2026.

Notice of Half Year Results

The Company will also announce its half year results for the period ended 30 June 2026 on 23 September 2026.

There will be a presentation held online for analysts at 9.00am on 23 September 2026. For details, please email: [email protected].

For further information please contact:

Notes to editors

Pantheon Infrastructure Plc (PINT)

Pantheon Infrastructure Plc is a closed-ended investment company and an approved UK Investment Trust, listed on the London Stock Exchange's Main Market and a constituent of the FTSE 250. Its Ordinary Shares trade under the ticker 'PINT'. The independent Board of Directors of PINT have appointed Pantheon, one of the leading private markets investment managers globally, as investment manager. PINT aims to provide exposure to a global, diversified portfolio of high-quality infrastructure assets through building a portfolio of direct co-investments in infrastructure assets with strong defensive characteristics, typically benefiting from contracted cash flows, inflation protection and conservative leverage profiles. Further details can be found at www.pantheoninfrastructure.com

LEI 213800CKJXQX64XMRK69

Pantheon

Pantheon has been at the forefront of private markets investing for more than 40 years, earning a reputation for providing innovative solutions covering the full lifecycle of investments, from primary fund commitments to co-investments and secondary purchases, across private equity, real assets and private credit.

The firm has partnered with more than 770 clients, including institutional investors of all sizes as well as a growing number of private wealth advisers and investors, with approximately $84bn in discretionary assets under management (as of 31 March 2026).

Leveraging its specialised experience and global team of professionals across Europe, the Americas and Asia, Pantheon invests with purpose and leads with expertise to build secure financial futures.

Pantheon was one of the first private equity investors to sign up to the Principles for Responsible Investments ("PRI") in 2007 and has used these principles as a framework to develop its sustainability policy across all its investment activities. Since becoming a signatory, Pantheon has remained highly engaged with the PRI and has been heavily focused on sustainability integration, both through its involvement with associates and industry bodies, and through its integration of sustainability analysis into its investment process.