 RADNOR, Pa., March 15, 2021 GLOBE NEWSWIRE -- The law firm of Kessler Topaz Meltzer Check, LLP announces that a securities fraud class action lawsuit has been filed in the United States District Court for the Northern District of California against Penumbra, Inc. NYSE: PEN Penumbra on behalf of those who purchased or acquired Penumbra common stock between August 3, 2020 and December 15, 2020 , inclusive the Class Period. 