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Merck & Co shares owned by Pioneer Investment Management

Quarter-by-quarter ownership of Merck & Co (MRK) shares owned by Pioneer Investment Management from 13F filings

Historical chart of Pioneer Investment Management investment in Merck & Co

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All positions including Merck & Co held by Pioneer Investment Management consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Merck & Co by Pioneer Investment Management

Quarter filed Position value Share count Share price at filing
2012-12-31 $220M 5.4M 40.91
2012-06-30 $148M 3.5M 41.75