For purposes of this Act, an individual is connected with a company if, but only if—
(a)he is a director of that company or a related company, or
(b)he occupies a position as an officer (other than a director) or employee of that company or a related company or a position involving a professional or business relationship between himself (or his employer or a company of which he is a director) and the first company or a related company which in either case may reasonably be expected to give him access to information which, in relation to securities of either company, is unpublished price sensitive information, and which it would be reasonable to expect a person in his position not to disclose except for the proper performance of his functions.