Three directors at Breedon Aggregates raised their holdings in the company on Thursday, the same day that it impressed the market with a better-than-expected set of interim results.The board members used a recent dip in the stock to snap up the shares at a price of 39p each, after it hit an all-time high of 51p in May.Non-Executive Director David Warr spent the biggest amount, buying 500,000 shares for £195,000. The deal upped his interest in the firm to 0.55%.Meanwhile, Chairman Peter Tom, who has been in his position since Breedon's formation in 2010, bought 350,000 shares, spending £136,500 and lifting his stake to 4.75%.Chief Executive Simon Vivian also purchased 250,000 for £97,500, taking his holding to 1.63%.Breedon, the UK's biggest independent producer of primary aggregates used in construction, reported that underlying profit before tax jumped 77% to £9.4m in the first half ended June 30th with volumes ahead in all key product groups. Top Director BuysBreedon Aggregates Ltd. (BREE) Director name: Mr David WarrAmount purchased: 500,000 @ 39.00p Value: £195,000Breedon Aggregates Ltd. (BREE) Director name: Mr Peter W G TomAmount purchased: 350,000 @ 39.00p Value: £136,500Breedon Aggregates Ltd. (BREE) Director name: Mr Simon N VivianAmount purchased: 250,000 @ 39.00p Value: £97,500GLOBO (GBO) Director name: Mr Konstantinos (Costis) PapadimitrakopoulosAmount purchased: 89,000 @ 49.75p Value: £44,278GLOBO (GBO) Director name: Mr Gavin BurnellAmount purchased: 50,000 @ 50.00p Value: £25,000GLOBO (GBO) Director name: Mr Gerasimos (Makis) BonanosAmount purchased: 50,000 @ 50.00p Value: £25,000GLOBO (GBO) Director name: Mr Dimitrios GryparisAmount purchased: 50,000 @ 50.00p Value: £25,000GLOBO (GBO) Director name: Mr Barry M ArikoAmount purchased: 50,000 @ 50.00p Value: £25,000Finsbury Growth & Income Trust (FGT) Director name: Mrs Vanessa RenwickAmount purchased: 4,122 @ 506.80p Value: £20,890Finsbury Growth & Income Trust (FGT) Director name: Mrs Vanessa RenwickAmount purchased: 2,943 @ 507.00p Value: £14,921Top Director SellsTracsis (TRCS) Director name: Mr Charles Stephen WinwardAmount sold: 57,246 @ 311.00p Value: £178,035Tracsis (TRCS) Director name: Mr Max Cawthra Amount sold: 25,000 @ 311.00p Value: £77,750