The chairman of Drax Group bought 60,000 shares showing confidence in the power company, which has been facing challenging market conditions.Philip Cox, who is also a non-executive director at Drax, bought 60,000 shares for 364p each, for a total of £218,400. The shares are to be registered in the name of HSBC Global Custody Nominees.The company said this month weak gas markets resulted in the continuation of weak power prices, but its forecasts for the full year remained unchanged thanks to strong contracted position and good operational performance by its generating units.Top Director BuysDrax Group (DRX) Director name: Mr Philip CoxAmount purchased: 60,000 @ 364.00p Value: £218,400Marshall Motor Holdings (MMH) Director name: Mr Christopher John SawyerAmount purchased: 80,270 @ 185.00p Value: £148,500Thalassa Holdings Ltd. (DI) (THAL) Director name: Mr Charles Duncan SoukupAmount purchased: 200,000 @ 58.00p Value: £116,000Scotgold Resources (DI) (SGZ) Director name: Mr Richard GrayAmount purchased: 2,912,946 @ 0.58p Value: £16,895Darty (DRTY) Director name: Mr Albin JacquemontAmount purchased: 20,000 @ 66.00p Value: £13,200Top Director SellsInternational Greetings (IGR) Director name: Mr Anthony LawrinsonAmount sold: 667,652 @ 122.44p Value: £817,473Alliance Pharma (APH) Director name: Mr Tony BooleyAmount sold: 1,155,000 @ 37.00p Value: £427,350Alliance Pharma (APH) Director name: Mr Tony BooleyAmount sold: 1,000,000 @ 37.00p Value: £370,000