. . . EXHIBIT 11 BRUSH ENGINEERED MATERIALS INC. AND SUBSIDIARIES COMPUTATION OF PER SHARE EARNINGS <Table> <Caption> FIRST QUARTER ENDED --------------------------- MAR 28, 2003 MAR 29, 2002 ------------ ------------ Basic: Average shares outstanding................................ 16,561,430 16,554,667 =========== =========== Net loss.................................................. $(3,016,000) $(3,834,000) Per share amount.......................................... $ (0.18) $ (0.23) =========== =========== Diluted: Average shares outstanding................................ 16,561,430 16,554,667 Dilutive stock options based on the treasury stock method using average market price............................. -- -- ----------- ----------- Totals............................................... 16,561,430 16,554,667 =========== =========== Net loss.................................................. $(3,016,000) $(3,834,000) Per share amount.......................................... $ (0.18) $ (0.23) =========== =========== </Table>