MannKind Corp. (NASDAQ:MNKD): Current price $6.23

Takeover chatter is growing as a huge call trade tops Wednesday’s option activity in biopharmaceutical firm MannKind. According to optionMONSTER systems, a trader purchased 29,864 January 5 calls for the ask price of $1.98 in volume below prior open interest of over 111,000. Then seconds later, the trader sold an equal number of January 9 calls for the bid price of 83 cents against open interest of only 1,380 at that strike, clearly indicating new activity. Shares are up nearly 15 percent after peaking at $6.54 Wednesday morning, marking its highest level since the stock was cut in half in January of 2011.

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