Shares of ADT Inc. ADT, -0.41% climbed 15.7% in premarket trading Tuesday after the home-security company confirmed that it has secured about $1.65 billion in new investments from insurer State Farm and Alphabet Inc.'s GOOGL, -1.72% GOOG, -1.69% Google to boost product innovation, marketing and customers. The Wall Street Journal had earlier reported about the new investments by State Farm and Google.