Boston Partners lifted its holdings in Ero Copper Corp. (NYSE:ERO – Free Report) by 37.5% in the second quarter, according to the company in its most recent filing with the SEC. The fund owned 889,154 shares of the company’s stock after acquiring an additional 242,594 shares during the quarter. Boston Partners owned 0.86% of Ero Copper worth $14,979,000 at the end of the most recent quarter. Get Ero Copper alerts: Several other large investors have also recently modified their holdings of ERO. GMT Capital ...