The New York Stock Exchange, in anticipation of the last trading date (today) in UBS AG Rights (NYSE:
UBS RT ), which are set to expire on Tuesday, June 10, 2008, will establish four cash-only auctions in the trading of UBS RT at approximately (Eastern Standard Time) 10:00am, 12:00 noon, 2:00pm and 4:00pm. Regular-way trading (T+3 settlement) in the rights was suspended prior to the opening of trading on Friday, June 6, 2008. The NYSE will provide periodic updates on traderupdates.nyse.com. UBS common stock is not affected and will trade as usual.