(Sharecast News) - GlaxoSmithKline company Victoria Whyte disposed of 5,199 ordinary shares in the UK's biggest drugs company on Tuesday.Whyte, who joined GSK's corporate secretariat more than 30 years ago, sold the shares at an average price of 1,553.80p each, for a total transaction value of £80,782.06.Just last week, GlaxoSmithKline reported full-year sales of more than £30bn last Wednesday but warned that earnings in the current year would be hurt by generic competition to its blockbuster asthma treatment.GSK revealed 2018 group sales were £30.8bn, for a 2% increase on the previous year, while pre-tax profits were ahead by 36% at £4.8bn.Fourth-quarter sales came in at £8.2bn and adjusted earnings per share at 31.2p. Analysts had been looking for adjusted EPS of around 27.7p.As of 1630 GMT, GSK shares had picked up 0.40% to 1,551.80p.Top Director BuysGb Group (GBG)Director name: Rasche,David AAmount purchased: 48,780 @ 410.00pValue: £199,998.00Gb Group (GBG)Director name: Clark,ChrisAmount purchased: 39,024 @ 410.00pValue: £159,998.40Gb Group (GBG)Director name: Wilson ,David John Amount purchased: 37,972 @ 410.00pValue: £155,685.20Gb Group (GBG)Director name: Brown,NickAmount purchased: 37,971 @ 410.00pValue: £155,681.10Gb Group (GBG)Director name: Catchpole ,Liz Amount purchased: 12,195 @ 410.00pValue: £49,999.50Gb Group (GBG)Director name: Eggberry ,Charmaine Amount purchased: 9,756 @ 410.00pValue: £39,999.60Cranswick (CWK)Director name: Smith,TimAmount purchased: 1,500 @ 2,585.00pValue: £38,775.00Baillie Gifford Shin Nippon (BGS)Director name: Donaldson,Michael NeilAmount purchased: 859 @ 173.75pValue: £1,492.51F&c Investment Trust (FCIT)Director name: Bone,RogerAmount purchased: 147 @ 675.79pValue: £993.41Blackrock Throgmorton Trust (THRG)Director name: Beart,SimonAmount purchased: 149 @ 497.00pValue: £740.53Blackrock Throgmorton Trust (THRG)Director name: Beart,SimonAmount purchased: 149 @ 497.00pValue: £740.53F&c Investment Trust (FCIT)Director name: Hewitt,JeffreyAmount purchased: 74 @ 675.79pValue: £500.08Qinetiq Group (QQ.)Director name: Smith,DavidAmount purchased: 66 @ 306.32pValue: £202.17Qinetiq Group (QQ.)Director name: Wadey ,Steve Amount purchased: 65 @ 306.32pValue: £199.11United Utilities Group (UU.)Director name: Houlden,RussAmount purchased: 23 @ 824.37pValue: £189.61United Utilities Group (UU.)Director name: Mogford,Steven LAmount purchased: 22 @ 824.37pValue: £181.36Jpmorgan Japan Smaller Companies Trust (JPS)Director name: Henderson,AlexaAmount purchased: 50 @ 361.20pValue: £180.60United Utilities Group (UU.)Director name: Fraser,StevenAmount purchased: 21 @ 824.37pValue: £173.12Easyjet (EZJ)Director name: Findlay ,Andrew Amount purchased: 12 @ 1,290.00pValue: £154.80Arden Partners (ARDN)Director name: Clive Reed-Daunter,James (Jim)Amount purchased: 555 @ 27.00pValue: £149.85Arden Partners (ARDN)Director name: Brown,Donald Amount purchased: 555 @ 27.00pValue: £149.85Cobham (COB)Director name: Mellors,DavidAmount purchased: 132 @ 113.20pValue: £149.42Cobham (COB)Director name: Lockwood,DavidAmount purchased: 132 @ 113.20pValue: £149.42Oxford Instruments (OXIG)Director name: Barkshire,Ian Amount purchased: 15 @ 955.00pValue: £143.25Oxford Instruments (OXIG)Director name: Hill,GavinAmount purchased: 15 @ 955.00pValue: £143.25Glaxosmithkline (GSK)Director name: Redfern,David Amount purchased: 8 @ 1,554.33pValue: £124.35Glaxosmithkline (GSK)Director name: Walmsley,EmmaAmount purchased: 8 @ 1,554.33pValue: £124.35Glaxosmithkline (GSK)Director name: Whyte,VictoriaAmount purchased: 8 @ 1,554.33pValue: £124.35Glaxosmithkline (GSK)Director name: Dingemans,SimonAmount purchased: 8 @ 1,554.33pValue: £124.35F&c Investment Trust (FCIT)Director name: Knapp,EdwardAmount purchased: 15 @ 675.79pValue: £101.37Cobham (COB)Director name: Colloff,Lyn Amount purchased: 89 @ 113.20pValue: £100.75Top Director SellsStenprop Limited (STP)Director name: Carey,Julian Amount sold: 105,000 @ 112.13pValue: £117,731.25Glaxosmithkline (GSK)Director name: Whyte,VictoriaAmount sold: 5,199 @ 1,553.80pValue: £80,782.06