Several directors at Persimmon sold some of their shares in the housebuilding group.The company said the four directors, including finance director Mike Killoran and chief executive Jeff Fairburn, sold the shares to settle tax liabilities on their recent exercise of share options.In total, the directors sold 23,533 shares for a price of 1,694.49p each.The group reported last month a good set of full-year results with revenues up 23% to £2.6bn. 2015 was also said to have started solidly, with the private sales rate per site 5% stronger than the year before during the first eight weeks."Despite some uncertainty arising from the General Election in May, the ongoing gradual improvement in the UK economy and increasing mortgage lender support provides a supportive backdrop for the new homes market," said chairman Nicholas Wrigley. Top Director BuysSerco Group (SRP) Director name: Mr Rupert SoamesAmount purchased: 242,000 @ 182.30p Value: £441,166BAE Systems (BA.) Director name: Mr Ian KingAmount purchased: 53,889 @ 544.55p Value: £293,453Greggs (GRG) Director name: Mr Roger WhitesideAmount purchased: 15,817 @ 1,021.70p Value: £161,602BAE Systems (BA.) Director name: Mr Peter LynasAmount purchased: 21,780 @ 544.55p Value: £118,603BowLeven (BLVN) Director name: Mr Kevin HartAmount purchased: 275,000 @ 30.00p Value: £82,500Wolseley (WOS) Director name: Ms Jacky Simmonds Amount purchased: 2,000 @ 4,007.00p Value: £80,140BAE Systems (BA.) Director name: Mr Jerry DeMuroAmount purchased: 13,326 @ 544.55p Value: £72,567Greggs (GRG) Director name: Mr Richard HuttonAmount purchased: 6,273 @ 1,021.70p Value: £64,091Greggs (GRG) Director name: Mr Raymond ReynoldsAmount purchased: 5,597 @ 1,021.70p Value: £57,185BowLeven (BLVN) Director name: Mr Peter WilsonAmount purchased: 125,120 @ 30.00p Value: £37,536Top Director SellsWolseley (WOS) Director name: Mr Ian MeakinsAmount sold: 50,000 @ 3,992.45p Value: £1,996,225Wolseley (WOS) Director name: Mr Frank RoachAmount sold: 31,400 @ 3,992.45p Value: £1,253,629Wolseley (WOS) Director name: Mr John W MartinAmount sold: 25,977 @ 3,992.45p Value: £1,037,119Serco Group (SRP) Director name: Mr Rupert SoamesAmount sold: 242,000 @ 182.30p Value: £441,166Wolseley (WOS) Director name: Mr Richard ShoylekovAmount sold: 9,689 @ 3,992.45p Value: £386,828Persimmon (PSN) Director name: Mr M H KilloranAmount sold: 10,370 @ 1,694.49p Value: £175,719Persimmon (PSN) Director name: Mr Jeffrey FairburnAmount sold: 10,135 @ 1,694.49p Value: £171,737Wood Group (John) (WG.) Director name: Mr Alan G SempleAmount sold: 12,450 @ 642.00p Value: £79,929Communisis (CMS) Director name: Mr Andy Blundell Amount sold: 100,330 @ 51.00p Value: £51,168Persimmon (PSN) Director name: Mr Nigel GreenawayAmount sold: 2,920 @ 1,694.49p Value: £49,479