(Sharecast News) - TalkTalk chairman Charles Dunstone purchased 313,322 ordinary shares in the FTSE 250-listed telecoms outfit.Dunstone, the founder of Carphone Warehouse and creator of TalkTalk, acquired the shares at an average price of 116.07p each, for a total value of £363,672.83.TalkTalk announced an acceleration of its full fibre strategy late last month, with the launch of a company to build a new broadband network across Britain.It said the subsidiary, to be called 'FibreNation', would roll out faster, more reliable broadband to three million homes and businesses.TalkTalk had previously announced its intention to invest in a new broadband network, giving further details about its plans on Wednesday, with FibreNation set to be established under an independent chair to roll-out full fibre infrastructure.Management confirmed that the first three towns to benefit would be Harrogate, Ripon and Knaresborough, with the roll-out building on the company's full fibre trial in York, which had seen the city benefit from what it claimed was Britain's fastest internet.As of 1520 GMT, TalkTalk shares had ticked up 0.62% to 116.10p.Top Director BuysTalktalk Telecom Group (TALK)Director name: Dunstone,Charles WAmount purchased: 313,322 @ 116.07pValue: £363,672.83Sig (SHI)Director name: Oldersma ,Meinie Amount purchased: 332,388 @ 104.77pValue: £348,246.21Aj Bell (AJB)Director name: Bell,Andrew James Amount purchased: 118,750 @ 160.00pValue: £190,000.00Aj Bell (AJB)Director name: Flanagan,Eamonn Michael Amount purchased: 62,500 @ 160.00pValue: £100,000.00Aj Bell (AJB)Director name: Bell,Andrew James Amount purchased: 62,500 @ 160.00pValue: £100,000.00Aj Bell (AJB)Director name: Platts,Leslie MichaelAmount purchased: 62,500 @ 160.00pValue: £100,000.00Aj Bell (AJB)Director name: Bell,Andrew James Amount purchased: 31,250 @ 160.00pValue: £50,000.00Aj Bell (AJB)Director name: Turner,Simon Amount purchased: 31,250 @ 160.00pValue: £50,000.00Aj Bell (AJB)Director name: Bell,Andrew James Amount purchased: 31,250 @ 160.00pValue: £50,000.00Cairn Energy (CNE)Director name: Thomson,SimonAmount purchased: 31,812 @ 156.00pValue: £49,626.72Cadence Minerals (KDNC)Director name: Morzaria,KiranAmount purchased: 723,404 @ 0.14pValue: £1,012.77Cadence Minerals (KDNC)Director name: Suckling,AndrewAmount purchased: 723,404 @ 0.14pValue: £1,012.77Cadence Minerals (KDNC)Director name: Strang ,DonaldAmount purchased: 702,989 @ 0.14pValue: £984.18Oxford Instruments (OXIG)Director name: Barkshire,Ian Amount purchased: 17 @ 896.35pValue: £152.38Oxford Instruments (OXIG)Director name: Hill,GavinAmount purchased: 17 @ 896.35pValue: £152.38Top Director SellsAj Bell (AJB)Director name: Bell,Andrew James Amount sold: 11,339,256 @ 160.00pValue: £18,142,809.87Aj Bell (AJB)Director name: Summersgill ,Michael Thomas Amount sold: 436,211 @ 160.00pValue: £697,937.61Aj Bell (AJB)Director name: Platts,Leslie MichaelAmount sold: 67,493 @ 160.00pValue: £107,988.80Aj Bell (AJB)Director name: Turner,Simon Amount sold: 33,037 @ 160.00pValue: £52,859.20Aj Bell (AJB)Director name: Flanagan,Eamonn Michael Amount sold: 11,566 @ 160.00pValue: £18,505.60Aj Bell (AJB)Director name: Carstensen ,Laura Amount sold: 11,566 @ 160.00pValue: £18,505.60