Merck KgA has revealed that it has been acquiring shares of Schering AG, pushing its stake in the company near 20%, even as Bayer‘s deadline to acquire Schering closes in. Merck previously bid to acquire Schering, but was trumped by Bayer’s $21.5 billion offer for that company. As part of that offer, Bayer began acquiring shares in Schering. The company needs 75% of shareholders to vote in favor of the takeover at a June 14 meeting. Bayer currently owns 61.5% of Schering shares, b...