"Should the Board determine a sale transaction to be in the interests of all shareholders, Longview clients would consider, depending on the parties and terms involved, rolling part or all of their holdings should it prove necessary to consummate a transaction," according to the letter. Barry Rosenstein's Jana Partners disclosed a new position in PetSmart, Inc. (NASDAQ:PETM), owning 9.82 million shares of the company (including options to purchase 4.73 million shares of common stock), which account for 9.9% of its outstanding stock. PetSmart Inc. (NASDAQ:PETM) is a $6.7 billion market cap supplier of specialty products, services and solutions for the lifetime needs of pets in North America.