Yes they did:
Pittsburgh, PA, March 22, 2004 In light of some misleading speculation, the H. J. Heinz Company would like to make clear that neither Mrs. Teresa Heinz Kerry, Senator
John Kerry nor any member of their family is involved in the management or board of the H. J. Heinz Company (NYSE:HNZ). They have no involvement in the Heinz® Ketchup
business or any of the companys other brands or products.
http://www.heinz.com/jsp/presidential_statement.pdf
http://www.freerepublic.com/focus/f-news/1113704/posts