Robeco Schweiz AG lowered its stake in shares of Quanta Services, Inc. (NYSE:PWR – Free Report) by 11.0% in the 4th quarter, HoldingsChannel reports. The firm owned 701,500 shares of the construction company’s stock after selling 86,600 shares during the quarter. Quanta Services accounts for 2.5% of Robeco Schweiz AG’s portfolio, making the stock its […]