	ameron amn adopts shareholder rights plan ameron inc said its board adopted a rights plan designed to protect shareholders from potentially unfair takeover tactics the plan calls for distribution of one right for each of its outstanding common shares and each right entitles the holder to buy one one hundredth of a share of newly authorized series a junior participating cumulative preferred stock at an exercise price of dlrs ameron said it said the rights are exercisable if a group uires pct or more of its common stock or announces a tender offer for pct or more of its shares reuter 
