For immediate release

NOT FOR RELEASE, DISTRIBUTION OR PUBLICATION, DIRECTLY OR INDIRECTLY, IN OR TO THE UNITED STATES, AUSTRALIA, CANADA, NEW ZEALAND, THE REPUBLIC OF SOUTH AFRICA, JAPAN OR ANY MEMBER STATE OF THE EEA OR ANY OTHER JURISDICTION IN WHICH THE PUBLICATION, DISTRIBUTION OR RELEASE OF THIS ANNOUNCEMENT WOULD BE UNLAWFUL.

Pantheon Infrastructure Plc

21 August 2023

Transaction in Own Shares

Pantheon Infrastructure Plc (the "Company") announces that on Friday 18 August it purchased 150,000 ordinary shares of 1 penny par value in the capital of the Company ("Ordinary Shares") at a price of 74 pence per Ordinary Share.  The repurchased Ordinary Shares will be held in Treasury.

Following the repurchase, the Company has 480,000,000 Ordinary Shares in issue and 3,835,000 Ordinary Shares in Treasury. The remaining number of Ordinary Shares in issue is 476,165,000 (excluding treasury shares) and this figure (476,165,000) may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure Guidance and Transparency Rules.

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Legal Entity Identifier: 213800CKJXQX64XMRK69