Dixons Retail non-executive director Andrew Lynch has invested more than £26,000 in the retailer following its interim results earlier this week. Lynch, the chairman of the audit committee, bought 100,000 shares at 26.35p each. This more than doubled his shareholding to 181,428 shares. In March, he acquired 30,000 shares at 31.04p each. Lynch is a former finance director of Compass Group and he is the boss of SSP, a travel concessions catering business that used to be part of Compass. The PC World and Currys owner, formerly DSG International, posted an underlying pre-tax loss of £7.9m for the 24 weeks to 16 October, an improvement on last year's £17.6m loss and better than the £10.9m loss forecast by Nomura. A drop in underlying net finance costs from £23.2m to £16.1m helped. Underlying group sales were flat at £3.35bn, or up 1% at constant exchange rates, and 1% higher on a like for like basis. Sales fell 1% in the UK & Ireland to £1.62bn, but were up 2% like for like. Underlying operating losses narrowed to £10.7m from £16m.Top Director BuysBHP Billiton (BLT) Director name: Mr Alan BoeckmannAmount purchased: 1,500 @ 2,296.09p Value: £34,441Dixons Retail (DXNS) Director name: Mr Andrew LynchAmount purchased: 100,000 @ 26.35p Value: £26,348Media Corp. (MDC) Director name: Mr Justin DrummondAmount purchased: 500,000 @ 2.35p Value: £11,750Top Director Sells