The company, which had forayed into the growing Indian pharmaceutical market by buying a majority stake in Ranbaxy Laboratories in 2008 for Rs 22,000 crore, sold over 21 crore shares in Sun Pharma.
In a statement issued today Daiichi said "the sale of Sun Pharma shares has been completed." As part of the share sale, the Japanese firm sold a total of 21,49,69,058 shares of Sun Pharma.
Last month, Sun Pharma had announced completion of merger of Ranbaxy with itself, almost a year after announcing the USD 4-billion deal.
As part of the deal, Ranbaxy shareholders were to receive 0.8 Sun Pharma shares for every Ranbaxy share they held. Daiichi held 63.4 per cent in the Gurgaon-based firm at the time of the merger.
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The merger with Ranbaxy has fortified Sun Pharma's position as the world's fifth largest specialty generic pharma firm and the top-ranking domestic one with a significant lead in the market share.
In 2008 itself, the US Food and Drug Administration banned 30 generic drugs produced by Ranbaxy at its Dewas (Madhya Pradesh) and Paonta Sahib and Batamandi unit in Himachal Pradesh, citing gross violation of approved manufacturing norms.
In the same year, the US Department of Justice had moved a motion against the company in a local court alleging forgery of documents and fraudulent practice.
Eventually, in 2013 Ranbaxy pleaded guilty to "felony charges" relating to manufacture and distribution of certain adulterated drugs made at two India units and agreed to pay USD 500 million -- the largest settlement by a generic medicine maker till date.
It led to Daiichi Sankyo revising its earnings forecast, and had to also enforce salary cuts for its directors. The Japanese firm had alleged that certain former shareholders of Ranbaxy had "concealed and misrepresented critical information concerning the US Department of Justice and the FDA investigations".