 NEW YORK--BUSINESS WIRE--WHY: Rosen Law Firm, a global investor rights law firm, announces it is investigating potential securities claims on behalf of shareholders of Penumbra, Inc. NYSE:PEN resulting from allegations that Penumbra may have issued materially misleading business information to the investing public. SO WHAT: If you purchased Penumbra securities including options, between July 22, 2019 and December 15, 2020, and sold those securities for a loss you may be entitled to compensa 