EXHIBIT 11.1 SEAGATE TECHNOLOGY, INC. COMPUTATION OF NET INCOME (LOSS) PER SHARE (In thousands except per share data) Three Months Ended Nine Months Ended -------------------- -------------------- Mar. 28, Mar. 29, Mar. 28, Mar. 29, 1997 1996 1997 1996 -------- --------- -------- -------- PRIMARY Weighted average number of common shares outstanding during the period 246,528 200,824 228,881 195,666 Incremental common shares attributable to exercise of outstanding options (assuming proceeds would be used to purchase treasury stock) 8,770 - 7,439 6,994 -------- --------- -------- -------- Total shares 255,298 200,824 236,320 202,660 ======== ========= ======== ======== Net income (loss): Amount $256,750 $(157,478) $598,711 $112,246 Per share $ 1.01 $ (0.78) $2.53 $ 0.55 FULLY DILUTED Weighted average number of common shares outstanding during the period 246,528 200,824 228,881 195,666 Incremental common shares attributable to exercise of outstanding options (assuming proceeds would be used to purchase treasury stock) and conversion of convertible subordinated debentures 8,776 - 31,974 27,856 -------- --------- -------- -------- Total shares 255,304 200,824 260,855 223,522 ======== ========= ======== ======== Net income (loss): Amount $256,750 $(157,478) $598,711 $112,246 Add 5% convertible subordinated debentures interest, net of income tax effect - - 4,376 6,171 Add 6-1/2% convertible subordinated debentures interest, net of income tax effect - - 6,465 - Add 6-3/4% convertible subordinated debentures interest, net of income tax effect - - 5,663 - -------- --------- -------- -------- Total $256,750 $(157,478) $615,215 $118,417 ======== ========= ======== ======== Per share $ 1.01 $ (0.78) $2.36 $ 0.53 ======== ========= ======== ========