Axiom Properties Ltd director Ben Laurance has increased his interest in the company through a rights issue of 10.4 million shares valued at a total of $832,000. Mr Laurance now owns 36.2 million shares valued at $2.9 million on the announcement day share price. Medusa Mining Ltd chairman Kevin Tomlinson has increased his interest in the Como-based company through the exercise of 500,000 options at a total cost of $450,000. He now own 782,950 shares in the miner valued at $767,291 on the announcement day share price. Executive director Roy Daniel has increased his interest in the company through the exercise of 500,000 shares at $450,000 and now owns 1.3 million shares valued at $1.2 million. Centamin Egypt Ltd non-executive director Herbert Bottomley has decreased his interest in the company through the on-market sale of 400,000 shares, realising $361,189. He now owns 2.4 million shares valued at $2.2 million on the announcement day share price.