InterBulk, an expert at moving liquid and dry bulk materials, saw executive director Bill Thomson spend £33,000 to raise his stake in the firm.Thomson bought 950,000 at 3.5p each to raise his holdings to 5.4m shares, which represents 1.78% of the company.Non-executive director Graeme Bissett saw his stake rise by 400,000 after shares were bought at 3.65p each, while finance director Scott Cunningham acquired 250,000 shares at 3.50p.Top Director BuysSt Peter Port Capital Ltd. (SPPC) Director name: Mr Arthur Leonard Robert (Bob) MortonAmount purchased: 250,000 @ 43.00p Value: £107,500Interbulk Group (INB) Director name: Mr Bill ThomsonAmount purchased: 950,000 @ 3.50p Value: £33,250Vyke Communications (VYKE) Director name: Mr Jørgen Peter RasmussenAmount purchased: 218,000 @ 12.00p Value: £26,160Interbulk Group (INB) Director name: Mr Graeme BissettAmount purchased: 400,000 @ 3.70p Value: £14,800Douglasbay Capital Ltd (DBAY) Director name: Mr Michael Andrew HaxbyAmount purchased: 197,736 @ 5.30p Value: £10,480Top Director SellsJardine Matheson (Singapore) (JAR) Director name: Mr Adam Phillip Charles KeswickAmount sold: 10,000 @ $31.00 Value: $310,000Jardine Matheson (Singapore) (JAR) Director name: Mr Benjamin William KeswickAmount sold: 10,000 @ $31.00 Value: $310,000Jardine Matheson (Singapore) (JAR) Director name: Mr Simon L KeswickAmount sold: 10,000 @ $31.00 Value: $310,000Jardine Matheson (Singapore) (JAR) Director name: Mr E P K WeatherallAmount sold: 10,000 @ $31.00 Value: $310,000Cable & Wireless (CW.) Director name: Mr Timothy PenningtonAmount sold: 36,843 @ 146.00p Value: £53,791