(Sharecast News) - IQE's operations director Dr Howard Williams disposed of 3.17m ordinary shares in the AIM-listed semiconductor products manufacturer on Monday.Williams, who was appointed operations director at IQE back in 1996, sold the shares at an average price of 68.40p, for a total value of £2.17m.The Cardiff-based outfit's executive exercised options over 3.43m ordinary shares of 1p each last Wednesday, opting to dispose of the majority of them for "personal wealth planning purposes".Williams still holds a beneficial interest in 2.63m ordinary shares.Back in March, IQE shares dropped after it reported a decrease in annual profits and warned that it faced short-term headwinds.Profit before tax for the year ended 31 December came in at £14.0m, a decrease of 43% compared to the year before, while a 1% increase in revenue to £156.3m was more than offset by a 3% increase in the cost of sales to £118.8m and a 38% jump in administrative costs to £29.9m.As of 1610 BST, IQE shares had moved ahead 1.66% to 70.55p.Top Director BuysTungsten Corporation (TUNG)Director name: Mr Andrew DomanAmount purchased: 209,983 @ 39.70pValue: £83,363 Finsbury Food Group (FIF)Director name: Mr Stephen Alexander BoydAmount purchased: 30,000 @ 67.00pValue: £20,100 Top Director SellsIQE (IQE)Director name: Dr Howard Robert WilliamsAmount sold: 3,174,470 @ 68.40pValue: £2,171,337 Vesuvius (VSVS)Director name: Mr Guy YoungAmount sold: 60,629 @ 613.37pValue: £371,880 Vesuvius (VSVS)Director name: Mr Patrick AndréAmount sold: 37,731 @ 613.37pValue: £231,431 Vesuvius (VSVS)Director name: Mr Patrick AndréAmount sold: 37,731 @ 613.37pValue: £231,431