Spirax-Sarco Engineering announced Monday that its Chief Operating Officer, Nicholas Anderson, acquired 1,550 shares in the group at the end of last week. The shares were bought for 2,902p each for a total of spend of £44,981. Anderson, who took up the role in August, now owns a total of 3,160 Spirax-Sarco shares. He is set to take over as Chief Executive when Mark Vernon retires. Earlier this month the group said it was confident it would make ?good progress in 2013 despite challenging conditions in its mature markets of Europe and North America. The British engineering company, which makes pumps that are used by a range of industries including bakeries and dairies, reported organic sales had risen 4% in the four months to the end of October, in line with the sales growth it reported in the first half. Top Director BuysLMS Capital (LMS) Director name: Dr Martin KnightAmount purchased: 67,184 @ 74.00p Value: £49,716Spirax-Sarco Engineering (SPX) Director name: Mr Nicholas John AndersonAmount purchased: 1,550 @ 2,902.00p Value: £44,981Canaccord Genuity Group Inc. (CF.) Director name: Mr Paul ReynoldsAmount purchased: 5,300 @ 361.89p Value: £19,180Dialight (DIA) Director name: Mr Bill RonaldAmount purchased: 2,500 @ 913.00p Value: £22,825Canaccord Genuity Group Inc. (CF.) Director name: Mr Paul ReynoldsAmount purchased: 3,500 @ 362.57p Value: £12,690BowLeven (BLVN) Director name: Mr Edward WillettAmount purchased: 50,000 @ 40.00p Value: £20,000Dialight (DIA) Director name: Mr Roy BurtonAmount purchased: 2,000 @ 916.00p Value: £18,320Top Director SellsDatatec Ltd. (DI) (DTC) Director name: Mr John McCartneyAmount sold: 9,371 @ 326.44p Value: £30,591Datatec Ltd. (DI) (DTC) Director name: Mr John McCartneyAmount sold: 4,000 @ 330.86p Value: £13,234