(Sharecast News) - Randall & Quilter revealed on Tuesday that deputy chairman and chief financial officer Alan Quilter had disposed of 500,000 ordinary shares in the investment firm.Quilter, who formed the company alongside Ken Randall back in 1991, sold the shares at an average price of 188p on Monday, for a total value of £940,000.Following the sale, the firm's co-founder still holds 3.32m ordinary shares, representing 1.73% of R&Q's issued share capital, while his close family members hold a further 254,427 ordinary shares.Last month, the AIM-listed outfit posted a rise in 2018 pre-tax profit as it hailed a positive start to the current year.In the year to the end of December 2018, pre-tax profit from continuing operations increased 45% to £14.3m while net tangible assets per share pushed up 17% to 123.6p.The specialist non-life legacy insurance investor lifted its full-year dividend to 9.2p a share from 8.9p the year before.As of 1620 BST, R&Q shares had slipped 1.57% to 188.50p.Top Director BuysLloyds Banking Group (LLOY)Director name: Mr Stuart SinclairAmount purchased: 362,664 @ 61.45pValue: £222,857 Woodbois Limited (WBI)Director name: Mr Miles C PelhamAmount purchased: 500,000 @ 7.08pValue: £35,400 Chariot Oil & Gas Ltd. (CHAR)Director name: Mr George F. CanjarAmount purchased: 450,000 @ 5.20pValue: £23,400 IndigoVision Group (IND)Director name: Mr Vikki MacleodAmount purchased: 10,000 @ 181.00pValue: £18,100 Top Director SellsRandall & Quilter Investment Holdings (DI) (RQIH)Director name: Mr Alan QuilterAmount sold: 500,000 @ 188.00pValue: £940,000 Kingspan Group (KGP)Director name: Mr Geoff P DohertyAmount sold: 17,150 @ 45.24Value: 775,866 Vivo Energy (VVO)Director name: Mr Christian ChammasAmount sold: 188,525 @ 115.40pValue: £217,558 Vivo Energy (VVO)Director name: Mr Johan DepraetereAmount sold: 132,557 @ 115.40pValue: £152,971 Kingspan Group (KGP)Director name: Mr Geoff P DohertyAmount sold: 2,850 @ 45.24Value: 128,934