(Sharecast News) - Essentra non-executive director Ralf Wunderlich purchased 10,000 ordinary shares in the FTSE-250 listed supplier of plastic and fibre products.Wunderlich, who joined Essentra's board back in July 2017, acquired the shares at an average price of 352.10p each, for a total value of £35,210.Essentra updated the market on its third-quarter trading last week, reporting that it reflected the benefits of the strategic actions it had taken, as well as the "increasing stability" across the company.Like-for-like revenue was unchanged, or up 1.5% when adjusting for the closure of the Newport cartons site, with the packaging division returning to growth.It said the outlook for the full year remained as it had previously communicated.As of 1630 BST, Essentra shares had slipped 1.90% to 340.60p.Top Director BuysEssentra (ESNT)Director name: Wunderlich,Ralf K Amount purchased: 10,000 @ 352.10pValue: £35,210.00Renishaw (RSW)Director name: Lee,William Amount purchased: 800 @ 3,727.00pValue: £29,816.00Norish Units (NSH)Director name: O'Neill,TedAmount purchased: 10,000 @ 61.50pValue: £6,150.00Triple Point Social Housing Reit (SOHO)Director name: Phillips,Christopher R LAmount purchased: 4,854 @ 103.00pValue: £4,999.62Homeserve (HSV)Director name: Rusin,TomAmount purchased: 18 @ 919.50pValue: £165.51Homeserve (HSV)Director name: Bower,DavidAmount purchased: 17 @ 919.50pValue: £156.31Homeserve (HSV)Director name: Ford,JohnathanAmount purchased: 17 @ 919.50pValue: £156.31Homeserve (HSV)Director name: Harpin,RichardAmount purchased: 17 @ 919.50pValue: £156.31Kcom Group (KCOM)Director name: Bielby,AnnaAmount purchased: 158 @ 94.78pValue: £149.75Pennon Group (PNN)Director name: Loughlin,ChristopherAmount purchased: 20 @ 732.10pValue: £146.42Pennon Group (PNN)Director name: Davy ,Susan Amount purchased: 17 @ 732.10pValue: £124.46Top Director Sells