Galliford Try's Finance Director has made the most of recent gains on the stock's share price, selling more than half his stake in the firm. Frank Nelson disposed of 85,000 shares in the housbuilding and construction firm for 547.70p each, earning himself a total of £465,545 and leaving him with 77,440 shares. By Friday afternoon, the stock had gained almost 15%, or 74p, this week, and over 21%, or 100.50p this month. Nelson, who joined the board in 2000, made the sale just one day after the firm doubled its interim dividend, having delivered strong profit growth for the half year ended December 31st. Pre-tax profit rose to £32.2m for the half year from £17m the same time a year earlier. Group revenue climbed to £746.8m from £575.9m previously. Galliford said the housing market has remained resilient and it is encouraged by the continued strength of the market during the first seven weeks of 2012. Top Director BuysInterContinental Hotels Group (IHG) Director name: Mr Dale F. MorrisonAmount purchased: 4,536 @ 1,407.33p Value: £63,836Top Director SellsExperian (EXPN) Director name: Mr John PeaceAmount sold: 80,000 @ 955.00p Value: £764,000Mondi (MNDI) Director name: Mr Peter OswaldAmount sold: 115,923 @ 581.04p Value: £673,559Mondi (MNDI) Director name: Mr David A HathornAmount sold: 110,393 @ 581.04p Value: £641,427Galliford Try (GFRD) Director name: Mr Frank NelsonAmount sold: 85,000 @ 547.70p Value: £465,545Mondi (MNDI) Director name: Mr Andrew KingAmount sold: 45,582 @ 581.04p Value: £264,850Mondi (MNDI) Director name: Ms Carol HuntAmount sold: 17,907 @ 581.04p Value: £104,047