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Form SC 13G/A Artisan Partners Asset Filed by: FMR LLC Apr 11, 2016 09:58AM
Form SC 13G/A Artisan Partners Asset Filed by: FMR LLC Feb 12, 2016 08:57AM
Form SC 13G/A Artisan Partners Asset Filed by: FMR LLC Feb 13, 2015 10:05AM
Form SC 13G Artisan Partners Asset Filed by: FMR LLC Oct 10, 2014 09:16AM