Mr Mathison joined existing managers James Dow and Toby Ross on the funds on January 1.

Mr Mathison joined Baillie Gifford in 2019 as an investment manager having previously worked at Aviva Investors and, prior to that, nine years at Standard Life Investments.

The £814m Baillie Gifford Global Income Growth Fund aims to achieve growth in both income and capital over rolling five-year periods, whilst delivering a yield higher than that of the MSCI ACWI Index over rolling five-year periods. The fund is ranked 2/43 among its peers (five years to 30 November 2021).

In December, the £312m Responsible Global Equity Income Fund achieved its three-year track record. It seeks to invest responsibly in companies that can deliver both a resilient income stream and real growth in income and capital. Since its inception in 2018, the fund is ranked 2/48 in its sector.

James Budden, director, retail marketing & distribution, said: “Ross’ appointment recognises the significant contribution he has made since he joined Baillie Gifford two years ago.  This new role will see him assume greater responsibilities for decision making and overall portfolio construction.

“His promotion further strengthens an already experienced and successful team whose total returns to shareholders have proved resilient through volatile times for income investors.”