Warren Tucker, who was recently appointed as a Non-Executive Director of travel group Thomas Cook, on Thursday acquired a stake in the group the same day it unveiled an impressive set of full-year results. The purchase of 30,800 shares at 169p each set him back £52,052. The FTSE 250 travel conglomerate basked in the benefit of Chief Executive Harriet Green's extensive transformation programme, with annual revenues rising, costs trimmed and earnings flying.Thomas Cook also said it was increasing and accelerating its Wave 1 'cost out and profit improvement initiatives' to £440m and adding a new £440m Wave 2 of further cost reductions.Green, who was appointed in May 2012, said the first 365 days in the transformation of Thomas Cook had been "a great success". Indeed, in the year to September 30th revenue rose 1.3% to £9.3bn despite capacity reductions, costs were trimmed 2% and underlying earnings before interest and tax (EBIT) soared 49% to £263m, £10m above consensus forecasts. Underlying earnings per share leapt from 0.6p to 5p.Top Director BuysThomas Cook Group (TCG) Director name: Mr Warren TuckerAmount purchased: 30,800 @ 169.00p Value: £52,052Greenko Group (GKO) Director name: Mr John L RennocksAmount purchased: 37,125 @ 139.20p Value: £51,678Electra Private Equity (ELTA) Director name: Mr Roger YatesAmount purchased: 2,000 @ 2,353.00p Value: £47,060NMC Health (NMC) Director name: Mr Jonathan Bomford Amount purchased: 10,000 @ 413.45p Value: £41,345Devro (DVO) Director name: Mr Simon Webb Amount purchased: 14,000 @ 289.60p Value: £40,544Hunting (HTG) Director name: Mr John HofmeisterAmount purchased: 4,779 @ 848.00p Value: £40,526Whitbread (WTB) Director name: Mr Stephen WilliamsAmount purchased: 1,000 @ 3,497.50p Value: £34,975Hiscox Ltd (HSX) Director name: Mr Richard GillingwaterAmount purchased: 5,000 @ 683.50p Value: £34,175Asian Plantation Ltd. (DI) (PALM) Director name: Mr Dennis MelkaAmount purchased: 14,000 @ 200.00p Value: £28,000Biome Technologies (BIOM) Director name: Mr John StandenAmount purchased: 11,150 @ 152.00p Value: £16,948Top Director SellsHansteen Holdings (HSTN) Director name: Mr Richard Lowes Amount sold: 600,000 @ 107.51p Value: £645,060NR