SCHAUMBURG, Ill.--(BUSINESS WIRE)--Motorola Solutions (NYSE:MSI) announced today that it has commenced a modified "Dutch Auction" tender offer to repurchase shares of its common stock for an aggregate purchase price of up to $2 billion (subject to a customary increase if the tender offer is oversubscribed). Motorola Solutions stockholders may tender all or a portion of their shares (1) at a price specified by the tendering stockholder of not less than $61.00 per share and not more than $66.50 p