(ShareCast News) - Three Hikma Pharmaceuticals directors, including chairman and chief executive Said Darwazah, took the opportunity to each snap up £3m worth of shares in the drugmaker as the stock slumped to its lowest level since early April.Darwazah and his brothers, vice chairman Mazen, sons of founder Samih, on Wednesday bought 140,000 shares apiece at a price of 2,150p on the last day before the shares went ex-dividend, adding them to the holdings of the family's Darhold investment vehicle.Non-executive Ali Al-Hursy, who also has an equity stake in Darhold, also snapped up 140,000 shares via the vehicle.CEO Said now holds a combined direct and indirect stake of 5.59%, while Mazen has 3.06% and Al-Hursy 2.44%.Said's purchase followed his £4.3m acquisition last week at a price of 2,160p after comments by US presidential hopeful Hillary Clinton about the escalating cost of drugs sent the sector lower.As the stock went ex-dividend on Thursday, Hikma's shares were down almost 3% to just above a five-month low.On 24 August Hikma said it still expected to produce full-year revenue of at least $2bn but reported a drop in operating profit despite a jump in first-half revenues.Claiming a transitional year as it integrates its West-Ward Columbus acquisition, operating profits slipped to $176m from $204m due to a lower contribution from the generics business.However, the FTSE 250 company still declared an interim dividend of 11 cents per share, in line with the dividend in the same period last year. Top Director BuysHikma Pharmaceuticals (HIK)Director name: Darwazah,MazenAmount purchased: 140,000 @ 2,150.00pValue: £3,010,000.00Hikma Pharmaceuticals (HIK)Director name: Darwazah,SaidAmount purchased: 140,000 @ 2,150.00pValue: £3,010,000.00Hikma Pharmaceuticals (HIK)Director name: Al-Husry,AliAmount purchased: 140,000 @ 2,150.00pValue: £3,010,000.00Octagonal (OCT)Director name: David Davison,Martin Amount purchased: 1,000,000 @ 195.00pValue: £1,950,000.05Aviva (AV.)Director name: Mire,MichaelAmount purchased: 35,000 @ 432.50pValue: £151,374.99Hss Hire Group (HSS)Director name: Quested,PaulAmount purchased: 47,000 @ 85.00pValue: £39,950.00Pz Cussons (PZC)Director name: Silver,CarolineAmount purchased: 10,000 @ 333.15pValue: £33,315.00Elementis (ELM)Director name: Waterman ,Paul Amount purchased: 8,168 @ $2.99Value: $19,059.11Octagonal (OCT)Director name: David Davison,Martin Amount purchased: 1,000,000 @ 1.90pValue: £19,000.00Third Point Offshore Investors Ltd. Gbp Shares (TPOG)Director name: Legg,Christopher F LAmount purchased: 1,500 @ $14.45Value: $16,915.11European Assets Trust (EAT)Director name: Bond,Julia Amount purchased: 652 @ 1,072.60pValue: £6,993.35Blackrock World Mining Trust (BRWM)Director name: Lewis,JaneAmount purchased: 2,429 @ 286.19pValue: £6,951.49Elementis (ELM)Director name: Waterman ,Paul Amount purchased: 1,832 @ $2.98Value: $4,260.47Legal & General Group (LGEN)Director name: Markham,RudyAmount purchased: 1,463 @ 211.54pValue: £3,094.83Legal & General Group (LGEN)Director name: Meddings,Richard HAmount purchased: 1,186 @ 211.54pValue: £2,508.86Legal & General Group (LGEN)Director name: Popham,StuartAmount purchased: 772 @ 211.54pValue: £1,633.09Legal & General Group (LGEN)Director name: Bradley ,Carolyn Amount purchased: 731 @ 211.54pValue: £1,546.36Record (REC)Director name: Cullen,SteveAmount purchased: 1,919 @ 25.65pValue: £492.22Henderson Group (HGG)Director name: Thompson ,Roger Amount purchased: 63 @ 240.03pValue: £151.22Henderson Group (HGG)Director name: Formica,AndrewAmount purchased: 62 @ 240.03pValue: £148.82Henderson Group (HGG)Director name: Wagstaff ,Philip Amount purchased: 52 @ 240.03pValue: £124.81