MACK - Lots of insider buying at the end of last week.

3 different people within the company bought shares at around $3.70 on 11/27 and 11/29. Although the stock has already rallied, I think there is some more left in it.

insidermonkey.com/insider-trading/company/merrimack+pharmaceuticals+inc/1274792/purchases/

A total of 289,000 shares were purchased by insiders last week, close to a $1 million