EXHIBIT 11 CONCURRENT COMPUTER CORPORATION BASIC AND DILUTED EARNINGS PER SHARE COMPUTATION (DOLLARS AND SHARES IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) YEARS ENDED JUNE 30, ----------------------------- 1998 1997 1996 -------- -------- --------- Net income (loss) $ 3,414 $ 4,061 $(41,309) Preferred stock dividends (18) (311) - -------- -------- --------- Net income (loss) available to common shareholders $ 3,396 $ 3,750 $(41,309) ======== ======== ========= Weighted average number of common shares 47,002 44,603 30,568 Increase in weighted average number of common shares Upon assumed exercise of stock options 625 509 - -------- -------- --------- Total 47,627 45,112 30,568 ======== ======== ========= Basic and diluted net income (loss) per share $ 0.07 $ 0.08 $ (1.35) ======== ======== ========= 69