 Calamos Advisors LLC lifted its holdings in Allergan plc NYSE:AGN by 1.6 in the 1st quarter, according to its most recent 13F filing with the SEC. The firm owned 378,418 shares of the companys stock after purchasing an additional 5,877 shares during the quarter. Calamos Advisors LLC owned about 0.12 of Allergan worth 67,018,000 as ... 