 Sumitomo Mitsui Trust Holdings Inc. increased its stake in CDK Global Inc NASDAQ:CDK by 1.5 during the second quarter, Holdings Channel.com reports. The institutional investor owned 523,598 shares of the software makers stock after buying an additional 7,987 shares during the period. Sumitomo Mitsui Trust Holdings Inc.s holdings in CDK Global were worth 21,687,000 as ... 