The wife of DS Smith frontman Miles Roberts sold a substantial sum of shares in the packaging and office supplies firm on the same day it was revealed the Chief Executive Officer (CEO) received a big pay increase last year.The move came on Tuesday, the same day DS Smith released its annual report in which it said the CEO had earned a total of £1.6m for the fiscal year ended April 30th, up from £1.3m the year before. This included an annual salary of £0.61m and bonuses totalling £0.76m, in addition to pension payments and other benefits.Gillian Roberts exercised nil-cost options over nearly 2.6m shares and subsequently sold around 2.22m of them at a price of 250.53p each, making a total of nearly £5.6m.The couple's total holding following the transaction was left at just under 0.6m shares, equal to a 0.064% stake.The stock has risen by over 20% so far in 2013.Top Director BuysBanco Santander SA (BNC) Director name: Mr Emilio BotinAmount purchased: 13,430 @ 420.84p Value: £56,519Banco Santander SA (BNC) Director name: Mr Emilio BotinAmount purchased: 11,084 @ 418.86p Value: £46,426Croda International (CRDA) Director name: Mr Martin FlowerAmount purchased: 2,000 @ 2,424.99p Value: £48,500VP (VP.) Director name: Mr Neil A StothardAmount purchased: 8,500 @ 407.00p Value: £34,595VP (VP.) Director name: Ms Allison BainbridgeAmount purchased: 5,500 @ 408.00p Value: £22,440Banco Santander SA (BNC) Director name: Mr Emilio BotinAmount purchased: 4,000 @ 418.77p Value: £16,751Scientific Digital Imaging (SDI) Director name: Mr Kenneth FordAmount purchased: 100,000 @ 16.50p Value: £16,500Faroe Petroleum (FPM) Director name: Mr Roger WittsAmount purchased: 10,000 @ 111.50p Value: £11,150Top Director SellsSmith (DS) (SMDS) Director name: Mr Miles RobertsAmount sold: 2,218,519 @ 250.53p Value: £5,558,056e-Therapeutics (ETX) Director name: Mr Malcolm YoungAmount sold: 1,230,177 @ 35.50p Value: £436,713SThree (STHR) Director name: Mr Steve QuinnAmount sold: 101,633 @ 335.09p Value: £340,562e-Therapeutics (ETX) Director name: Mr Malcolm YoungAmount sold: 125,059 @ 27.00p Value: £33,766e-Therapeutics (ETX) Director name: Mr Malcolm YoungAmount sold: 50,000 @ 27.00p Value: £13,500BC