Duality Advisers LP lessened its holdings in shares of Westlake Co. (NYSE:WLK – Free Report) by 29.0% during the fourth quarter, Holdings Channel.com reports. The firm owned 4,542 shares of the specialty chemicals company’s stock after selling 1,857 shares during the quarter. Duality Advisers LP’s holdings in Westlake were worth $636,000 at the end of […]