Mike Inglis, the Chief Commercial Officer of ARM since March last year, this week traded in 200,000 shares in the semiconductor and software design company. Inglis sold 186,703 of the shares at 921p for a total of just under £1.72m, while the remaining 13,297 were disposed of at 917p for £0.12m. The sale came one week after the group posted a 16% rise in profit before tax for the fourth quarter, boosted by demand for the company's processor technology for smartphones and tablet devices. Revenues came to the tune of £164.2m, up 19% year-on-year, beating the £151m forecast by analysts at Jefferies International. Normalised pre-tax profits for the British semiconductor and software design firm came to £80m for the three months to December 2012, compared to £69m for the same period a year earlier. Earnings per share for the period rose 10% to 4.08p, slighting ahead of market expectations of 4.07p. ARM's share price has risen more than 60% in the past year, equal to a gain of 354p. Top Director BuysVolex (VLX) Director name: Mr Daniel AbramsAmount purchased: 71,849 @ 96.70p Value: £69,478Coms (COMS) Director name: Mr David BreithAmount purchased: 7,966,667 @ 0.75p Value: £59,750Coms (COMS) Director name: Mr Andrew BransonAmount purchased: 3,333,333 @ 0.75p Value: £25,000Top Director SellsPlutus Resources (PLR) Director name: Mr Craig Rochford Amount sold: 1,500,000 @ 1.25p Value: £18,750Randall & Quilter Investment Holdings (RQIH) Director name: Mr Paul McNamaraAmount sold: 10,000 @ 134.00p Value: £13,400NR