Complex sentence: In September 1986 he said that Hunter, the finance director, could have 50 of these shares as part of his employment; crucially, he made no statement or trust involving the other 900 shares.
Split into simpler sentences: In September 1986 he said that Hunter, the finance director, could have 50 of these shares as part of his employment. Crucially, he made no statement or trust involving the other 900 shares.