Russ Rogers, the president of Porous Technologies at Filtrona, the FTSE 250 speciality plastic, fibre and foam products supplier, has sold 101,739 shares in the company. Rogers was awarded the shares under the group's long term incentive plan on August 9th and on the same day he sold 23,616 of them to cover the tax due on the transfer, along with the remaining 78,123 for a profit of £414,833. Altogether the shares were sold for 531p each for a total of £540,234. Following the transaction Rogers now holds 115,668 shares, equal to 0.055% of Filtrona's total shares. The sale was made just over a week since the company reported a 24% increase in half year revenue, saying it is well positioned to deliver growth for the full year. Revenue at constant currency grew to £324.8m for the half year ended June 30th from £268.6m the same time a year earlier. Like-for-like revenue increased 9% after progress in all its major divisions. Top Director BuysHammerson (HMSO) Director name: Mrs Judy GibbonsAmount purchased: 4,000 @ 462.28p Value: £18,491British Empire Securities & General Trust (BTEM) Director name: Ms Susan Noble Amount purchased: 3,402 @ 437.55p Value: £14,885NR