The stock market finished the month of February lower, giving back some of its gains from January. However, as investors prepared for the first day of March, the Nasdaq Composite (NASDAQINDEX: ^IXIC) tried to rebound, with gains of about 0.2% in futures trading before the market opened Wednesday morning.

A pair of companies listed on the Nasdaq were big winners in early morning premarket trading. Sarepta Therapeutics (NASDAQ: SRPT) saw a nice gain after reporting favorable financial results and giving an upbeat update on a key candidate treatment, but Reata Pharmaceuticals (NASDAQ: RETA) was the big winner on the day. Read on to learn more about why shareholders in these biotechnology stocks were so happy.

Shares of Sarepta Therapeutics jumped 16% in premarket trading early Wednesday. The genetic medicine specialist announced fourth-quarter financial results that showed continued growth and made an announcement that had its investors more optimistic about its future.

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Source Fool.com