UBS ETRACS Alerian MLP Index ETN Series B AMUB

The ETRACS Alerian MLP Index ETN Series B due July 18, 2042 (the “Securities”) is senior unsecured debt securities issued by UBS. The index measures the composite performance of energy master limited partnerships (“MLPs”), and is calculated by S&P Dow Jones Indices using a float-adjusted, capitalization-weighted methodology.