Dustin Dryden, Chief Executive Officer of Hangar 8, a European operator of privately-owned passenger jet aircraft, has this week sold half a million shares on the back of institutional demand for stock, the group revealed Friday. The demand follows the company's half-year results issued Wednesday, which showed a strong rise in both revenue and profit. At 260p-a-share, Dryden's sale generated a total of £1.3m. He now has an interest in 2.77m shares, representing approximately 29.32% of the issued ordinary share capital.On Wednesday, the group said its revenue for the six months to the end of December rose 13.1% to £12.5m (2012: £11.1m), while adjusted earnings before interest, tax, depreciation and amortisation (EBITDA) rose from £0.89m to £1.18m. It also said it planned to announce a maiden dividend payment alongside its full-year results. Top Director BuysManagement Consulting Group (MMC) Director name: Mr Nicholas StaggAmount purchased: 100,000 @ 22.75p Value: £22,750Majedie Investments (MAJE) Director name: Mr Paul GaddAmount purchased: 10,000 @ 211.38p Value: £21,138Blinkx (BLNX) Director name: Mrs Judy VezmarAmount purchased: 20,000 @ 102.00p Value: £20,400Top Director SellsMondi (MNDI) Director name: Mr David A HathornAmount sold: 180,479 @ 1,083.94p Value: £1,956,284Mondi (MNDI) Director name: Mr Peter OswaldAmount sold: 153,991 @ 1,083.94p Value: £1,669,170Hangar 8 (HGR8) Director name: Mr Dustin DrydenAmount sold: 500,000 @ 260.00p Value: £1,300,000Henderson Group (HGG) Director name: Mr Andrew FormicaAmount sold: 366,600 @ 242.88p Value: £890,398Mondi (MNDI) Director name: Mr Andrew KingAmount sold: 69,614 @ 1,083.94p Value: £754,574Mondi (MNDI) Director name: Ms Carol HuntAmount sold: 26,814 @ 1,083.94p Value: £290,648Enterprise Inns (ETI) Director name: Mr W Simon TownsendAmount sold: 146,054 @ 151.40p Value: £221,126Standard Chartered (STAN) Director name: Mr Richard H MeddingsAmount sold: 8,863 @ 1,206.20p Value: £106,906Standard Chartered (STAN) Director name: Mr Stefano Paolo BertaminiAmount sold: 7,877 @ 1,206.20p Value: £95,012Xchanging (XCH) Director name: Mr David BauernfeindAmount sold: 50,000 @ 164.00p Value: £82,000NR