ASML Announces Update of its Share Buyback Program

-- To effect share repurchases under its buyback program, ASML enters into forward purchase transactions with a broker acting as principal. Under the terms of these transactions, the exact number of shares that are to be purchased by the broker and delivered to ASML, as well as timing of purchases, is left to the discretion of the broker, within pre-agreed ranges.

-- During the period from June 20 to June 23, 2006, ASML acquired 3,400,000 of its shares from the broker pursuant to the share buyback program, at an average price of EUR 15.95 per share.

-- The aggregate amount of shares bought back up to and including June 23, 2006 is 16,179,998 and represents 63.6 percent of the announced objective of maximum EUR 400 million to be repurchased during the term of the program.

-- ASML's share buyback program was announced on April 19, 2006 and will terminate on April 18, 2007.

-- ASML intends to cancel its repurchased shares.

About ASML

ASML is the world's leading provider of lithography systems forthe semiconductor industry, manufacturing complex machines that arecritical to the production of integrated circuits or chips.Headquartered in Veldhoven, the Netherlands, ASML is traded onEuronext Amsterdam and Nasdaq under the symbol ASML. For moreinformation, visit the Web site at ASML.com