Sprint has made a bid to acquire the remaining 49 percent of Clearwire shares that it currently doesn’t own. As Bloomberg reports, the recently acquired carrier is looking to purchase the extra shares at $2.90 each, putting the cost of the potential deal at about $2.1 billion. The news comes after CNBC revealed that Sprint and Clearwire were in "active negotiations" over the remaining 49 percent, with Sprint hoping to close the deal before the end of the year. The main motivation for the move is precious spectrum: the Japanese owner of Sprint, SoftBank, had previously stated that it’s seeking full control over Clearwire’s "vast reserves of spectrum."