Sid is a director of two listed public companies in which he has substantial shareholdings: Trend plc and Umber plc. 

The annual reports of both Trend plc and Umber plc have just been drawn up, although not yet disclosed. They show that Trend plc has made a surprisingly big loss and that Umber plc has made an equally surprising big profit. On the basis of this information Sid sold his shares in Trend plc and bought shares in Umber plc. He also advised his brother to buy shares in Umber plc.  

Vic, who is also a shareholder in both companies, sold a significant number of shares in Umber plc only the day before its annual report was published. 

 Greg is a member of the board of directors of Huge plc. He also controls a private limited company, Imp Ltd, through which he operates a management consultancy business. He also owns all the shares in Jet Ltd, through which he conducts an investment business. 

When Greg learns that Huge plc is going to make a take-over bid for Kop plc, he arranges for Jet Ltd to buy a large number of shares in Kop plc on the London Stock Exchange, on which it makes a large profit when it sells them after the takeover bid is announced. He then arranges for Jet Ltd to transfer the profit to Imp Ltd as the charge for supposed consultancy work. The money is then transferred to Greg through the declaration of dividends by Imp Ltd.