EXHIBIT 11.1
SONUS PHARMACEUTICALS, INC.
COMPUTATION OF NET INCOME (LOSS) PER SHARE
THREE MONTHS ENDED NINE MONTHS ENDED
SEPTEMBER 30, SEPTEMBER 30,
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1998 1997 1998 1997
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BASIC EARNINGS PER SHARE:
Net income (loss) ....................... $(2,048,648) $(1,122,176) $(8,413,476) $ 639,604
Weighted average common shares .......... 8,626,253 8,573,029 8,619,125 8,553,321
Basic earnings per share ............. $ (0.24) $ (0.13) $ (0.98) $ 0.07
DILUTED EARNINGS PER SHARE:
Net income (loss) ....................... $(2,048,648) $(1,122,176) $(8,413,476) $ 639,604
Weighted average common shares - basic .. 8,626,253 8,753,029 8,619,125 8,553,321
Dilutive potential common shares ........ -- -- -- 1,003,850
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Total ................................ 8,626,253 8,573,029 8,619,125 9,557,171
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Diluted earnings per share ........... $ (0.24) $ (0.13) $ (0.98) $ 0.07
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