"Shire (SHPG) is exploring ways to return up to 2B pounds back to shareholders in an attempt to bolster its defenses against a possible foreign takeover bid, Daily Mail reports. The move comes amid speculation that an American company, possibly Bristol-Myers (BMY) is seeking to buy Shire, the paper added."
Maybe this $2B in cash will drive the price of the stock up a little and make Shire too expensive. It certainly can't hurt.