X0202 4 2005-03-08 0 0001009626 BROCADE COMMUNICATIONS SYSTEMS INC BRCD 0001229129 KLAYKO MICHAEL 1745 TECHNOLOGY DRIVE SAN JOSE CA 95110 0 1 0 0 CEO Common Stock 855180 I By Partnership Common Stock 30889 I by Son Common Stock 22889 I By Daughter Common Stock 22889 I By Daughter 2 Common Stock 22889 I By Daughter 3 Common Stock 175372 I By Trust Non-qualified Stock Option (right to buy) 4.55 2004-01-27 2013-01-27 Common Stock 250000 250000 D Non-qualified Stock Option (right to buy) 4.55 2003-07-27 2013-01-27 Common Stock 213781 213781 D Non-qualified Stock Option (right to buy) 5.53 2003-09-15 2010-08-15 Common Stock 250000 250000 D Non-Qualified Stock Option (right to buy) 5.84 2004-06-21 2011-05-21 Common Stock 325000 325000 D Non-qualified Stock Option (right to buy) 4.97 2004-09-20 2011-08-20 Common Stock 250000 250000 D Non-qualified Stock Option (right to buy) 6.42 2005-03-18 2012-02-18 Common Stock 1000000 1000000 D Non-qualified Stock Option (right to buy) 6.00 2005-03-08 4 A 0 600000 6.00 A 2005-04-08 2012-03-08 Common Stock 600000 600000 D Shares held by Genesis Management Investments Limited Partnership, over which the Reporting Person and his spouse exercise investment and voting control. Beneficial ownership disclosure only. Shares held by Reporting Person's son, as to which Reporting Person disclaims beneficial ownership. Beneficial ownership disclosure only. Shares held by Reporting Person's daughter, as to which Reporting Person disclaims beneficial ownership. Beneficial ownership disclosure only. Shares held by Reporting Person's daughter 2. Beneficial ownership disclosure only. Shares held by Reporting Person's daughter 3. Shares held by the Klayko Living Trust, over which the Reporting Person and his spouse exercise investment and voting control. Beneficial ownership disclosure only. 62,500 options vest on January 27, 2004; 187,500 options vest monthly from February 27, 2004 through January 27, 2007. Beneficial ownership disclosure only. 53,446 options vest on July 27, 2003; 160,335 options vest monthly from August 27, 2003 through January 27, 2005. Beneficial ownership disclosure only. Options vest monthly from September 15, 2003 through August 15, 2007. Beneficial ownership disclosure only. Option vests monthly over three years beginning on date of grant. Beneficial ownership disclosure only. Options vest monthly over 4 years from date of grant, with 1/48 of the shares exercisable beginning on 9/20/04. Beneficial ownership disclosure only. Options vest monthly over 4 years from date of grant, with 1/48 of the shares exercisable beginning on 3/18/05. Options vest monthly over 4 years from date of grant, with 1/48 of the shares exercisable beginning on 4/08/05. /s/ Richard Deranleau, attorney in fact for Michael Klayko 2005-03-09