CONCURRENT COMPUTER CORPORATION EXHIBIT 11 BASIC AND DILUTED EARNINGS (LOSS) PER SHARE COMPUTATION THREE MONTHS ENDED NINE MONTHS ENDED MARCH 31, 2002 MARCH 31, 2002 ------------------ -------------------- BASIC DILUTED BASIC DILUTED -------- -------- --------- --------- Average outstanding shares 61,560 61,560 60,712 60,712 Dilutive effect of options and warrants - 3,207 - - -------- -------- --------- --------- Equivalent shares 61,560 64,767 60,712 60,712 ======== ======== ========= ========= Net income (loss) $ 2,304 $ 2,304 $ (650) $ (650) ======== ======== ========= ========= Income (loss) per share $ 0.04 $ 0.04 $ (0.01) $ (0.01) ======== ======== ========= ========= THREE MONTHS ENDED NINE MONTHS ENDED MARCH 31, 2001 MARCH 31, 2001 ------------------ -------------------- BASIC DILUTED BASIC DILUTED -------- -------- --------- --------- Average outstanding shares 55,021 55,021 54,558 54,558 Dilutive effect of options and warrants - 2,104 - - -------- -------- --------- --------- Equivalent shares 55,021 57,125 54,558 54,558 ======== ======== ========= ========= Net income (loss) $ 571 $ 571 $ (5,381) $ (5,381) ======== ======== ========= ========= Loss per share $ 0.01 $ 0.01 $ (0.10) $ (0.10) ======== ======== ========= ========= -22-