KUALA LUMPUR (April 20): Transocean Holdings Bhd has said it is unaware of any reasons that could account for the spikes in its share price and trading volume in recent days. In response to an unusual market activity (UMA) query from Bursa Malaysia, the company said it is not aware of any corporate developments that have not been previously announced that could account for the higher trading activity. Transocean noted that it had made disclosures regarding the purchase of a 40% stake in Enfrasys Solutions Sdn Bhd for RM20 million in an all-share deal. The group had also proposed a private placement to fund the capital expenditure of the group's logistics service segment, as well as another private placement to raise funds to upgrade the logistics segment's information technology infrastructure and system.