Ian Macgregor (born c. 1937) is a British investment executive and chartered accountant.
He is the former chief investment officer of The Wellcome Trust, oversaw growth of nearly £1bn per annum over fifteen years.
The Wellcome Trust was the then-largest foundation in the world, with total assets valued at about £14bn at his retirement in 2000.
[1] Regarded by many as the most successful investment officer ever seen in the not-for-profit sector, Macgregor was behind the largest private share sale on record: initial flotation of Wellcome Plc.
[2] and has served as a non-executive director for International Biotechnology Trust PLC.