Replacing Whibley will be Richard Sowerby, a Dowlis executive director and experienced board-level CFO who previously worked for Altitude in a number of senior capacities, including CFO in 2013 before progressing to executive chairman. Most recently, Sowerby served as a non-executive director for the company in 2017.

Whibley, who joined the company as CFO in September 2025, will step down from the board on 31 July.

Altitude said the shake-up reflects the restructuring of its finance function to align with the company's increased focus on the US market, where its AIM Smarter operations serve more than 2,300 distributors.

Shares jumped 6.1% on the news to 26p by 0813 BST.

Altitude said that, with Sowerby back at the company, its board transformation programme initiated over the past year is now complete, following the recent appointments of Alexander Brennan as non-exec chair, and Robert Wigley and Max Roberts as independent non-exec directors.

"Richard's return brings continuity, deep sector knowledge, and a finance structure that is right-sized for where we are today," Brennan said in a brief statement.

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