BRIEF-Mannatech Inc Q4 loss per share $0.42 By: Reuters: Company News March 14, 2017 at 06:18 AM EDT * Mannatech inc - q4 net sales for 2016 were $42.6 million, a decrease of $2.7 million, or 6.0%, as compared to $45.3 million in q4 of 2015 Read More >> Related Stocks: Mannatech Inc