HUTCHINSON TECHNOLOGY INCORPORATED STATEMENT REGARDING COMPUTATION OF NET INCOME PER SHARE - UNAUDITED (In thousands, except per share data) Thirteen Weeks Ended --------------------------- December 29, December 24, 1996 1995 ------------ ----------- NET INCOME $11,117 $2,862 ------------ ----------- ------------ ----------- NET INCOME PER SHARE - PRIMARY: Weighted average common shares outstanding 5,454 5,447 Dilutive effect of stock options outstanding after application of treasury stock method 175 176 ------------ ----------- 5,629 5,623 ------------ ----------- ------------ ----------- PRIMARY NET INCOME PER SHARE $1.97 $.51 ------------ ----------- ------------ ----------- NET INCOME PER SHARE - FULLY DILUTED: Weighted average common shares outstanding 5,454 5,447 Dilutive effect of stock options outstanding after application of treasury stock method 253 176 ------------ ----------- 5,707 5,623 ------------ ----------- ------------ ----------- FULLY DILUTED NET INCOME PER SHARE $1.95 $.51 ------------ ----------- ------------ -----------