Red Rock Resources chairman Andrew Bell has sold more than half of his holding in the AIM-quoted minerals explorer.Bell raised £21,300 from the disposal of 1m shares at 2.13p each. He still owns 800,000 shares. Bell is a former mining analyst with Morgan Grenfell. The shares were sold on the day that Red Rock announced the results of samples taken from the Macalder gossan of the Migori project in Kenya in April. These results indicate there are significant grades of easily recoverable gold.Top Director BuysSpaceandPeople (SAL) Director name: Mr Alfred P StirlingAmount purchased: 147,500 @ 58.00p Value: £85,550Symphony International Holdings (SIHL) Director name: Mr Anil ThadaniAmount purchased: 65,000 @ $0.60 Value: $39,000SpaceandPeople (SAL) Director name: Mr Alfred P StirlingAmount purchased: 64,500 @ 58.00p Value: £37,410Top Director SellsMothercare (MTC) Director name: Mr Ben GordonAmount sold: 117,000 @ 580.00p Value: £678,600Mothercare (MTC) Director name: Mr Neil HarringtonAmount sold: 39,803 @ 580.00p Value: £230,857Mothercare (MTC) Director name: Mr Clive RevettAmount sold: 21,007 @ 580.00p Value: £121,841Red Rock Resources (RRR) Director name: Mr Andrew Ronald McMillan BellAmount sold: 1,000,000 @ 2.13p Value: £21,300