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Form SC 13G/A BIOGEN INC. Filed by: FMR LLC Feb 14, 2017 10:49AM
Form SC 13G/A BIOGEN INC. Filed by: FMR LLC Feb 12, 2016 09:00AM
Form SC 13G/A BIOGEN IDEC INC. Filed by: FMR LLC Feb 13, 2015 10:05AM