Actelion gains again as takeout rumors swirl

Actelion Ltd. (SIX:ATLN) climbed CHF19 (10%) to CHF209 on Tuesday after media reports said Johnson & Johnson (NYSE:JNJ) raised its bid to acquire the company. Actelion shares have gained 32% since closing at CHF158 on Thursday, before reports circulated of an initial offer from J&J.

Actelion acknowledged Friday that J&J has approached it about a transaction (see BioCentury Extra, Nov. 28)...