An investor director at Quintain Estates and Development, Nigel Kempner, has sold 1.75m shares in the company in two batches.The first set of shares, totally 100,000, which he traded in on 11 September, were disposed of at 86p each for a total of £86,000.The remaining shares were traded in at 85.32p for a total of £1.41m.The sale reduced Kempner's stake to 1.02m shares. Top Director BuysEnergy XXI (Bermuda) (DI) (EXXI) Director name: Mr Hill Arnold FeinbergAmount purchased: 12,500 @ $15.48 Value: $193,500IFG Group (IFP) Director name: Mr Paul McNamaraAmount purchased: 100,000 @ 130.69p Value: £130,690IFG Group (IFP) Director name: Mr John CotterAmount purchased: 50,000 @ 130.69p Value: £65,345John Laing Infrastructure Fund Ltd (JLIF) Director name: Mr Paul J LesterAmount purchased: 19,379 @ 116.00p Value: £22,480Mcbride (MCB) Director name: Mr Chris BullAmount purchased: 20,000 @ 89.00p Value: £17,800Hogg Robinson Group (HRG) Director name: Mr David RadcliffeAmount purchased: 25,000 @ 50.75p Value: £12,688Top Director SellsQuintain Estates & Development (QED) Director name: Mr Nigel KempnerAmount sold: 1,650,000 @ 85.32p Value: £1,407,780Circle Oil (COP) Director name: Professor Christopher David GreenAmount sold: 2,120,028 @ 26.22p Value: £555,871PXP Vietnam Fund Ltd. (VNF) Director name: Mr Urs BolzernAmount sold: 20,000 @ $6.44 Value: $128,800PXP Vietnam Fund Ltd. (VNF) Director name: Mr Urs BolzernAmount sold: 20,000 @ $6.44 Value: $128,800Quintain Estates & Development (QED) Director name: Mr Nigel KempnerAmount sold: 100,000 @ 86.00p Value: £86,000Circle Oil (COP) Director name: Mr Brendan McMorrowAmount sold: 148,402 @ 26.22p Value: £38,911