 HighTower Advisors LLC trimmed its holdings in Immunomedics, Inc. NASDAQ:IMMU by 1.3 in the 1st quarter, according to its most recent filing with the Securities and Exchange Commission SEC. The firm owned 41,207 shares of the biopharmaceutical companys stock after selling 522 shares during the quarter. HighTower Advisors LLCs holdings in Immunomedics were worth 554,000 ... 