SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Genentech, Inc. (NYSE:DNA) announced today that it has received a proposal from Roche to acquire all of the outstanding shares of Genentech stock not owned by Roche at a price of $89.00 in cash per share. Currently, Roche owns approximately 55.9% of the outstanding shares of Genentech. Genentech expects that a special committee of its Board of Directors, composed of the independent directors, will be convened promptly to determine what action to take with respect to the proposal.