Under German law, 30% is the threshold limit, which if crossed, the acquirer has to make a takeover bid.
(Porsche was planning to increase its stake from 27.3% to 31% in Volkswagen and make a takeover bid - Economic Times, 26 March 2007, Page 10)
Compiled by Dr. K.V.S.S. Narayana Rao, Professor, National Institute of Industrial Engineering (NITIE), Mumbai- 400087, India. Email: firstname.lastname@example.org