X0203 3 2008-07-31 0 0001024520 WORLD HEART CORP WHRT 0001391289 VENROCK ASSOCIATES V LP 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001444116 Venrock Management V, LLC 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001395760 VENROCK PARTNERS V L P 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001444117 Venrock Partners Management V, LLC 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001444114 Venrock Entrepreneurs Fund V, L.P. 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001444112 VEF Management V, LLC 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 Common Stock 3666666 I By Funds Pursuant to the terms of that certain Recapitalization Agreement, dated June 20, 2008, as amended on July 31, 2008, by and among the Issuer and the investors named therein, Venrock Associates V, L.P. ("VA5"), Venrock Partners V, L.P. ("VP5") and Venrock Entrepreneurs Fund V, L.P. ("VEF5") purchased an aggregate of 110,000,000 shares of the Issuer's common shares. On October 27, 2008, the Issuer filed Articles of Amendment with Industry Canada, under the Canada Business Corporations Act, to effect a one-for-thirty reverse stock split and commenced trading on the NASDAQ Capital Market on a post-consolidation basis on October 28, 2008 (the "Reverse Split"). The Reverse Split affected all holders of the Issuer's common shares uniformly. The common shares listed herein are disclosed on a post-consolidation basis. As of the effective date of the Reverse Split, VA5 was the record owner of 3,308,433 common shares, VEF5 was the record owner of 77,733 common shares, and VP5 was the record owner of 280,500 common shares (collectively, the "Shares"). As the general partners of VA5, VEF5 and VP5, respectively, Venrock Management V, LLC, VEF Management V, LLC and Venrock Partners Management V, LLC (the "General Partners") may be deemed to own beneficially all of the Shares. Each General Partner disclaims beneficial ownership of the Shares except to the extent of its indirect pecuniary interest therein. /s/ David L. Stepp 2010-02-01