(ShareCast News) - Following the life insurer Prudential's remarkably strong results on Wednesday, non-executive director Kai Nargolwala showed his belief in the value of the shares at the present level.Nargolwala, who has worked in Asia at director level since the 1990s at Bank of America, Standard Chartered and Credit Suisse, bought 20,000 shares at a price of 1,342.51, spending £0.27m.Results on Wednesday, where operating profit grew 22% to £4.0bn, coming in 10% ahead of consensus, with impressive performances in the UK and Asia, saw the shares possibly end the downward March since the start of the year due to worries about the economic slowdown in China.As part of the results statement, chief executive Mike Wells said that while the current macroeconomic uncertainty and market instability clouded the near-term outlook, the group's progress "continues to remain underpinned by the structural demand for regular premium savings and protection products in Asia".Over at BHP Billiton, whose stock had fallen from above £20 in mid-2014 to below £6 earlier this year, non-executive Malcolm Brinded, a 37-year Shell veteran who has been on the board at BHP since the slump began, also expressed his confidence in his company's shares.Brinded snapped up 28,000 shares at 815p apiece. Value: £228,199.99Top Director BuysPrudential (PRU)Director name: Nargolwala,Kai SAmount purchased: 20,000 @ 1,342.51pValue: £268,502.01Dairy Farm International Holdings Ltd. (singapore) (DFI)Director name: Allan,GrahamAmount purchased: 40,000 @ $5.95Value: $238,200.00Bhp Billiton (BLT)Director name: Brinded,MalcolmAmount purchased: 28,000 @ 815.00pValue: £228,199.99Paddy Power Betfair (PPB)Director name: McGann,GaryAmount purchased: 1,400 @ € 122.65Value: € 138,710.72Vitec Group (VTC)Director name: Bird,StephenAmount purchased: 10,000 @ 556.00pValue: £55,600.00Asian Total Return Investment Company (ATR)Director name: Keljik,Christopher AAmount purchased: 976 @ 2,036.00pValue: £19,871.36Interquest Group (ITQ)Director name: Bygrave,DavidAmount purchased: 24,750 @ 80.00pValue: £19,800.00Regenersis (RGS)Director name: Woodward,RobAmount purchased: 7,500 @ 196.50pValue: £14,737.50St. Modwen Properties (SMP)Director name: Shannon,William(Bill) Mervyn FrewCareyAmount purchased: 5,000 @ 289.00pValue: £14,450.00Marks & Spencer Group (MKS)Director name: Swannell,RobertAmount purchased: 3,000 @ 396.20pValue: £11,885.91Tristel (TSTL)Director name: Soler,Francisco AngelAmount purchased: 10,000 @ 113.50pValue: £11,350.00Elegant Hotels Group (EHG)Director name: Adams,DavidAmount purchased: 10,000 @ 109.00pValue: £10,900.00Sse (SSE)Director name: Bruce,Sue Amount purchased: 671 @ 1,471.69pValue: £9,875.01Eagle Eye Solutions Group (EYE)Director name: Sharman-Munday,Lucy Amount purchased: 5,000 @ 166.50pValue: £8,325.00Diageo (DGE)Director name: Humer,Franz BAmount purchased: 441 @ 1,879.00pValue: £8,286.39Greggs (GRG)Director name: McPhillips,PeterAmount purchased: 500 @ 1,079.90pValue: £5,399.50Eagle Eye Solutions Group (EYE)Director name: Blundell,PhillAmount purchased: 2,978 @ 166.50pValue: £4,958.37Softcat (SCT)Director name: Charlton,GrahamAmount purchased: 528 @ 340.50pValue: £1,797.84Drs Data & Research Services (DRS)Director name: Tebbutt,Arthur MAmount purchased: 1,262 @ 99.00pValue: £1,249.38Bp (BP.)Director name: Gilvary,BrianAmount purchased: 88 @ 356.00pValue: £313.28Share Plc (SHRE)Director name: Thomas ,Gareth Amount purchased: 556 @ 27.00pValue: £150.12Share Plc (SHRE)Director name: Ecsery,Francesca Eva Amount purchased: 555 @ 27.00pValue: £149.85Share Plc (SHRE)Director name: Stone,Richard WilliamAmount purchased: 555 @ 27.00pValue: £149.85Share Plc (SHRE)Director name: Birkett,Mike Amount purchased: 555 @ 27.00pValue: £149.85Share Plc (SHRE)Director name: Tolkien,RichardAmount purchased: 555 @ 27.00pValue: £149.85Meggitt (MGGT)Director name: Johnson ,David Amount purchased: 30 @ 410.40pValue: £123.12Meggitt (MGGT)Director name: Young,Stephen GAmount purchased: 30 @ 410.40pValue: £123.12Meggitt (MGGT)Director name: Webb,DougAmount purchased: 30 @ 410.40pValue: £123.12Meggitt (MGGT)Director name: Green,Philip ErnestAmount purchased: 30 @ 410.40pValue: £123.12Firstgroup (FGP)Director name: Barker,MickAmount purchased: 121 @ 95.18pValue: £115.17Top Director SellsPaddy Power Betfair (PPB)Director name: Corcoran,BreonAmount purchased: 43,500 @ 9,572.13pValue: £4,163,874.81Breedon Aggregates Ltd. (BREE)Director name: Vivian,Simon NAmount purchased: 6,000,000 @ 68.00pValue: £4,080,000.04Breedon Aggregates Ltd. (BREE)Director name: Williams,DavidAmount purchased: 5,000,000 @ 68.00pValue: £3,400,000.04Smith & Nephew (SN.)Director name: Bohuon,OlivierAmount purchased: 39,817 @ 1,136.62pValue: £452,568.00Tyman (TYMN)Director name: Brotherton,JamesAmount purchased: 108,313 @ 280.33pValue: £303,629.51Tyman (TYMN)Director name: Eperjesi,LouisAmount purchased: 102,944 @ 280.33pValue: £288,578.81Mid Wynd International Inv Trust (MWY)Director name: Burns,RichardAmount purchased: 69,500 @ 334.00pValue: £232,129.99Mid Wynd International Inv Trust (MWY)Director name: Burns,RichardAmount purchased: 50,000 @ 334.25pValue: £167,125.00Smith & Nephew (SN.)Director name: Bohuon,OlivierAmount purchased: 13,554 @ 1,136.62pValue: £154,057.48Smith & Nephew (SN.)Director name: Bohuon,OlivierAmount purchased: 10,000 @ 1,136.62pValue: £113,662.00Smith & Nephew (SN.)Director name: Bohuon,OlivierAmount purchased: 6,166 @ 1,134.00pValue: £69,922.44