Board member Alex Cooper has upped his stake in Ocean Wilsons, spending nearly £50,000 on shares in the Brazil-focused shipping services group.Cooper, a lawyer and resident of Bermuda, bought 3,550 shares at 1,360p a share, and now has 46,450.The shares have risen sharply since the company issued full-year results in March. Revenues grew sharply but the company was hit by the Brazilian real rising against the US dollar.Top Director BuysCharles Taylor Consulting (CTR) Director name: Mr Rupert RobsonAmount purchased: 38,749 @ 157.00p Value: £60,836Ocean Wilsons Holdings Ltd. (OCN) Director name: Mr C F A CooperAmount purchased: 3,550 @ 1,360.00p Value: £48,280Anite (AIE) Director name: Mr Richard AmosAmount purchased: 62,500 @ 74.02p Value: £46,262Terrace Hill Group (THG) Director name: Mr Robert F M AdairAmount purchased: 150,000 @ 23.25p Value: £34,875Green Dragon Gas Ltd. (DI) (GDG) Director name: Mr Stewart JohnAmount purchased: 3,000 @ $16.86 Value: $50,590Wasabi Energy (WAS) Director name: Mr John J ByrneAmount purchased: 1,000,000 @ 1.93p Value: £19,300International Ferro Metals Group (IFL) Director name: Mr Terence Vincent Coleman WillsteedAmount purchased: 150,000 @ 16.50p Value: £24,750Aminex (AEX) Director name: Mr Brian A HallAmount purchased: 325,705 @ 6.90p Value: £22,474Green Dragon Gas Ltd. (DI) (GDG) Director name: Mr David TurnbullAmount purchased: 2,000 @ $10.00 Value: $20,000Sacoil Holdings (DI) (SAC) Director name: Mr Richard John LinnellAmount purchased: 20,000 @ R0.88 Value: R17,600Top Director SellsCharles Taylor Consulting (CTR) Director name: Mr Rupert RobsonAmount sold: 19,900 @ 157.00p Value: £31,243