Canopy (TSX: CGC) is already the largest medical marijuana company in Canada. However – management just made bold move to solidify its status as an early giant in the young cannabis industry. On Thursday, December 1 Canopy announced a $430 million bid to purchase industry rival Mettrum (TSX.V: MT) for $430 million. If the deal is approved by regulators and shareholders, the combined company would control half the fast-growing Canadian medical marijuana market. Wow. Shareholders should be pumped.