(ShareCast News) - First Derivatives non-executive director David Anderson offloaded 5,000 shares in the software and consulting firm at 1,541p each.The sale brought his interest in the company down to 120,000 shares, or 0.5% of the issued share capital.Elsewhere, Berkeley Group non-executive director Diana Brightmore-Armour made her first purchase, picking up 1,000 shares in the housebuilder at 3,464p each.Clinical stage drug development firm Evgen Pharma said a group of directors bought 136,000 shares between them at 22.5p each.Chairman Barry Clare and chief financial officer John Bradshaw bought 40,000 shares each, bringing their total interests to 1.3% and 0.1%, respectively.Chief executive Stephen Franklin nabbed 56,000 shares, bringing his holding to just under 1.38m, or 1.9%.Top Director BuysNorth Atlantic Smaller Companies Inv Trust (NAS) Director name: Mr Christopher H B MillsAmount purchased: 45,000 @ 2,275.00p Value: £1,023,750Berkeley Group Holdings (The) (BKG) Director name: Ms Diana Brightmore-Armour Amount purchased: 1,000 @ 3,464.00p Value: £34,640Evgen Pharma (EVG) Director name: Dr Stephen FranklinAmount purchased: 56,000 @ 22.50p Value: £12,600Top Director SellsWolseley (WOS) Director name: Mr Frank RoachAmount sold: 7,260 @ 3,358.00p Value: £243,791First Derivatives (FDP) Director name: Mr David AndersonAmount sold: 5,000 @ 1,541.00p Value: £77,050