X0202 4 2004-10-15 0 0000749251 GARTNER INC IT 0001198849 HALL EUGENE A 56 TOP GALLANT ROAD P.O. BOX 10212 STAMFORD CT 06904-2212 1 1 0 0 CEO Common Stock Class A 2004-10-15 4 A 0 500000 0 A 500000 D 300,000 shares will vest when the Company's Class A Common Stock trades at an average price of $20 per share or more for sixity (60) consecutive trading days. Another 100,000 shares will vest at an average price of $25 and 100,000 shares will vest at an average price of $30 under the same terms as previously mentioned. The average price shall equal the average of the high and low sales price for the Company's Class A Common stock for the trading day in question. By: /s/ Lewis G Schwartz For: Eugene A Hall 2004-10-15