EXHIBIT 11.1
SONUS PHARMACEUTICALS, INC.
COMPUTATION OF NET INCOME (LOSS) PER SHARE
THREE MONTHS ENDED SIX MONTHS ENDED
JUNE 30, JUNE 30,
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BASIC EARNINGS PER SHARE: 1998 1997 1998 1997
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Net income (loss)......................... $(3,098,138) $ 405,593 $(6,364,829) $ 1,761,780
Weighted average common shares............ 8,618,198 8,555,567 8,615,561 8,543,460
Basic earnings per share............... $ (0.36) $ 0.05 $ (0.74) $ 0.21
DILUTED EARNINGS PER SHARE:
Net income (loss)......................... $(3,098,138) $ 405,593 $(6,364,829) $ 1,761,780
Weighted average common shares - basic.... 8,618,198 8,555,567 8,615,561 8,543,460
Dilutive potential common shares.......... -- 869,716 -- 916,764
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Total.................................. 8,618,198 9,425,283 8,615,561 9,461,844
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Diluted earnings per share............. $ (0.36) $ 0.04 $ (0.74) $ 0.19
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