Have you been paying attention to shares of Rockwell Medical (RMTI) ? Shares have been on the move with the stock up 34.4% over the past month. The stock hit a new 52-week high of $2.64 in the previous session. Rockwell Medical has gained 36.5% since the start of the year compared to the 9.5% move for the Zacks Medical sector and the 8.4% return for the Zacks Medical - Products industry.What's Driving the Outperformance?The stock has an impressive record of positive earnings surprises, as it hasn't missed o ...