Australia's Guzman y Gomez falls after top stakeholder cuts 20% stake
** Shares of Guzman y Gomez GYG.AX fall as much as 2% to A$26.17
** TDM Growth Partners sold 3.5 million shares, or 20% of its stake in co, via an off-market block trade, says Mexican-themed fast-food chain
** TDM now retains about 14% of co's total outstanding shares and drops to second-largest shareholder after Pinnacle Investment Management group PNI.AX
** YTD, stock up 22.3%