MARKET FOR REGISTRANT’S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS ALEXANDRIA REAL ESTATE EQUITIES, INC. AND SUBSIDIARIES Our common stock is traded on the New York Stock Exchange (“NYSE”) under the symbol “ARE”. As of December 31, 2003, there were approximately 231 holders of record of our common stock (excluding beneficial owners whose shares are held in the name of CEDE & Co.). The following table sets forth the quarterly high and low sales prices per share of our common stock as reported on the NYSE and the distributions paid by us with respect to each such period. Period High Low Per Share Disribution October 1, 2003 to December 31, 2003 $ 58.99 $ 48.03 $ 0.58 July 1, 2003 to September 30, 2003 $ 48.55 $ 44.34 $ 0.56 April 1, 2003 to June 30, 2003 $ 45.63 $ 41.61 $ 0.53 January 1, 2003 to March 31, 2003 $ 42.80 $ 39.81 $ 0.53 52