Aquarius Platinum's non-executive chairman on Tuesday purchased new shares in the mining company.Nigel Rudd bought 1m shares for 8.58p each, spending a total of £85,800 in the transaction.The shares were purchased under Coleman Investments, in which Rudd holds a minority stake.Following the transaction, Rudd will hold 2.026m ordinary shares in Aquarius.In April, the group posted a 2% year-on-year decline in annual revenue to $50m (£32.6m) due to lower production and low prices, while costs increased driven by a decrease production shifts and stock pile reduction over the Christmas holidays.Top Director BuysAquarius Platinum Ld (AQP) Director name: Sir Nigel RuddAmount purchased: 1,000,000 @ 8.58p Value: £85,800Avation (AVAP) Director name: Mr Robert Jeffries ChatfieldAmount purchased: 50,000 @ 140.00p Value: £70,000Croda International (CRDA) Director name: Ms Anita FrewAmount purchased: 1,500 @ 2,944.92p Value: £44,174Croda International (CRDA) Director name: Ms Anita FrewAmount purchased: 1,500 @ 2,918.85p Value: £43,783Croda International (CRDA) Director name: Ms Anita FrewAmount purchased: 1,500 @ 2,906.28p Value: £43,594Avation (AVAP) Director name: Mr Robert Jeffries ChatfieldAmount purchased: 30,000 @ 137.50p Value: £41,250Kibo Mining (KIBO) Director name: Mr Christian Schaffalitzky De MuckadellAmount purchased: 260,000 @ 5.00p Value: £13,000CAP-XX Limited (CPX) Director name: Mr Patrick ElliotAmount purchased: 368,315 @ 3.26p Value: £12,007CAP-XX Limited (CPX) Director name: Mr Bruce Ferguson GreyAmount purchased: 368,315 @ 3.26p Value: £12,007Kibo Mining (KIBO) Director name: Mr Wenzel Johan Konstant KerremansAmount purchased: 200,000 @ 5.00p Value: £10,000Top Director SellsGlencore (GLEN) Director name: Mr William MacaulayAmount sold: 34,347,696 @ 278.15p Value: £95,538,116Glencore (GLEN) Director name: Mr William MacaulayAmount sold: 7,724,183 @ 287.49p Value: £22,206,254Pace (PIC) Director name: Mr Allan LeightonAmount sold: 286,567 @ 413.03p Value: £1,183,608Restaurant Group (RTN) Director name: Mr Stephen CritophAmount sold: 126,070 @ 695.00p Value: £876,186Restaurant Group (RTN) Director name: Mr Danny Breithaupt Amount sold: 61,228 @ 695.00p Value: £425,535Restaurant Group (RTN) Director name: Mr Danny Breithaupt Amount sold: 12,880 @ 685.00p Value: £88,228