Grenzebach Maschinenbau GmbH, one of the world’s leading companies in materials handling and process technology, is increasing its stake in MDAX listed KUKA AG to just over 10 percent and acquires a further 9 percent, subject to antitrust approval. As result of the transaction, Grenzebach will be KUKA’s largest shareholder. In December 2008 Grenzebach had already acquired a 5.43 percent stake in KUKA.…