Corrigan, who quit Merrill Lynch in March (PRWeek, 4 March), will join Man Investments as its first global head of comms on 2 May.
Reporting to global head of marketing and sales Christoph Moeller, Corrigan will manage the 12 agencies retained by Man Investments primarily in Europe and the US. In the UK the group retains Rostron Parry.
Corrigan said there were no plans 'at this point' to review Man Investment's agency relationships but could not rule out a review within the next six months.
Man Investments accounts for 85 per cent of Man Group's profits, with brokerage arm Man Financial contributing the remainder.
Neither Man Group nor Man Financial have heads of comms, making Corrigan the group's most senior PRO. Man Group head of funding and external affairs David Browne manages the company's relationship with retained financial comms agency Merlin Financial.
The hedge fund industry has come under increasing pressure from the corporate sector to regulate its complex, and often opaque, transactions (see lead story).