The Chief Financial Officer of defence group QinetiQ, David Mellors, on Tuesday sold 52,848 shares after the company vested earlier the same day. Mellors, who was appointed to the role in August 2008, traded in the shares at just under 195.47p a share, maintaining his stake at 376,016 shares. Leo Quinn, the Chief Executive Officer, acquired 105,695 shares as a result of their vesting, and opted to keep them, increasing his holding to just short of 1.77m.The vesting came the same day the group announced the completion of the sale of its US Services division, for which it has received an initial $165m. There is a potential earnout of up to $50m.The transactions were carried out less than a week after the group revealed a 21% drop in underlying operating profit to £132.7m in the year to March 31st.It did, however, also say that its non-US activities were picking up. Speaking at the time, Quinn said: "The sale of US Services is a key milestone in the group's transformation. From this foundation, our people are working hard across QinetiQ to achieve our growth strategy."Top Director BuysWood Group (John) (WG.) Director name: Mr Bob KeillerAmount purchased: 63,522 @ 771.00p Value: £489,755Polymetal International (POLY) Director name: Ms Marina GroenbergAmount purchased: 11,000 @ 511.36p Value: £56,250Experian (EXPN) Director name: Ms Deirdre MahlanAmount purchased: 2,500 @ 1,019.66p Value: £25,492Experian (EXPN) Director name: Ms Deirdre MahlanAmount purchased: 2,500 @ 1,018.47p Value: £25,462Smiths Group (SMIN) Director name: Mr William SeegerAmount purchased: 2,500 @ 1,308.83p Value: £32,721Jelf Group (JLF) Director name: Mr John HardingAmount purchased: 10,000 @ 117.50p Value: £11,750Top Director SellsBritish Land Co (BLND) Director name: Mr Charles MaudsleyAmount sold: 64,318 @ 716.11p Value: £460,588British Land Co (BLND) Director name: Mr Chris GriggAmount sold: 55,535 @ 716.11p Value: £397,692Wood Group (John) (WG.) Director name: Mr Bob KeillerAmount sold: 30,514 @ 771.00p Value: £235,263British Land Co (BLND) Director name: Mr Timothy Andrew RobertsAmount sold: 23,610 @ 716.11p Value: £169,074QinetiQ Group (QQ.) Director name: Mr David MellorsAmount sold: 52,848 @ 195.47p Value: £103,302Barr (A.G.) (BAG) Director name: Mr Alex ShortAmount sold: 15,000 @ 626.00p Value: £93,900British Land Co (BLND) Director name: Mr Lucinda BellAmount sold: 11,251 @ 716.11p Value: £80,570NR