 Invesco Ltd. raised its stake in shares of Immunomedics, Inc. NASDAQ:IMMU by 5.5 in the 1st quarter, according to its most recent Form 13F filing with the SEC. The fund owned 544,965 shares of the biopharmaceutical companys stock after purchasing an additional 28,373 shares during the period. Invesco Ltd. owned 0.24 of Immunomedics worth 7,346,000 ... 