TSL

"On AIM, Tissue Science Laboratories, the Hampshire-based medical device specialist, gained a spectacular 84.55 per cent or 46.50p to 101.50p after announcing a recommended 103.5p cash offer from Covidien, the $10bn global healthcare products giant spun out of US-based Tyco International. Investors were heartened by the premium – Covidien is offering almost 72 per cent more than TSL's average closing price over the last six months."

http://www.independent.co.uk/news/business/sharewatch/market-report-prudential-gains-after-bid-speculation-returns-795029.html