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Today's Bell Ringer, April 6, 2016

9:21 AM ET Wed, 6 April 2016

Today's bell ringers are semiconductor company GigPeak, Inc. highlighting the company's name change from GigOptix, Inc, with Chairman and CEO Dr. Avi Katz, at the NYSE; and biotherapeutic company Vital Therapies CEO Terry Winters, at the Nasdaq.