MMCAP is an opportunistic, event-driven fund that concentrates on small- to mid-sized corporate actions in Canada, the US and elsewhere, and seeks to exploit inefficiencies that are overlooked and/or not understood by larger market participants. The fund utilizes a broad range of strategies, including, but not limited to, merger arbitrage, convertible arbitrage, warrant arbitrage, capital structure arbitrage, index arbitrage, event driven/special situations, convertibles, private investments and pairs trading.link 

they just acquired 450k shares link