(ShareCast News) - Asos's ex-chief executive Nick Robertson has dumped 1.3m shares at 3,525p on Thursday in order to fund an expensive divorce.Roberston, now a non-executive director, completed an accelerated secondary placing to institutional investors that will reap a gross £46m to help pay for the split from his ex-wife Janine.Earlier this year, Robertson was ordered to hand about a third of his £220m fortune to his former partner after a public trial in the family division of the high court.Following the completion of the placing it is understood that Robertson will retain interest in roughly 5.5m ordinary shares in the company, circa 6.6% of the total. Broker Shore Capital said it understood the decision was not related to any change in confidence with respect to the prospects of the business.His remaining shareholding will be subject to a 90-day lock-up period following the completion of the place. Top Director BuysMinds + Machines Group Limited (di) (MMX)Director name: Elliott,GuyAmount purchased: 300,000 @ 10.00pValue: £30,000.00Marshall Motor Holdings (MMH)Director name: Gupta,DakshAmount purchased: 15,240 @ 193.80pValue: £29,535.12Marshall Motor Holdings (MMH)Director name: Gupta,DakshAmount purchased: 15,240 @ 193.80pValue: £29,535.12Primary Health Properties (PHP)Director name: Wiles ,Nick Amount purchased: 25,000 @ 106.50pValue: £26,625.62Banco Santander S.a. (BNC)Director name: Botin,Francisco JavierAmount purchased: 201 @ € 4.07Value: € 636.08Banco Santander S.a. (BNC)Director name: Botin,Francisco JavierAmount purchased: 160 @ € 4.07Value: € 506.33Banco Santander S.a. (BNC)Director name: Alvarez,Jose AntonioAmount purchased: 14 @ € 4.07Value: € 44.30