Searle & Company boosted its stake in AstraZeneca plc (NYSE:AZN) by 8.3% during the fourth quarter, according to its most recent filing with the SEC. The institutional investor owned 39,300 shares of the biopharmaceutical company’s stock after buying an additional 3,000 shares during the period. AstraZeneca plc makes up about 1.3% of Searle & Company’s […]