St Saviour-based businessman Mr Leech was made the executive chairman of Plusmarket-quoted Accura Pharma this month.
It was today announced that Alan Reade had joined Accura.
He is a former chairman and chief executive of a joint venture bet-ween Merck and Sanofi-Aventis named Merial Ltd, which is the second largest animal health company in the world with worldwide sales of more than US$2 billion.
Accura is listed on the Plusmarket, formerly the London Ofex market.
A trust of which Mr Leech is a beneficiary owns 60 million shares.