X0306 4 2014-03-24 0 0001056358 MANNATECH INC MTEX 0001211831 TOTH ROBERT 600 S ROYAL LN #200 COPPELL TX 75019 1 0 0 0 Common Stock, Par Value $0.0001 per share 2014-03-24 4 P 0 5000 17.704 A 35000 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $17.02 to $17.90 inclusive. The reporting person undertakes to provide Mannatech, Incorporated any security holder of Mannatech, Incorporated, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each seperate price within the ranges set forth in this Form 4. /s/ S. Mark Nicholls, CFO by Power of Attorney 2014-03-25