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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1997 1996 1997 1996
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Net income (loss) ............................... $(1,122,176) $ 2,801,745 $ 639,604 $ (925,037)
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Weighted average shares outstanding ............. 8,573,029 8,490,201 8,573,029 8,467,100
Net effect of common stock equivalents
using the treasury stock method ............ -- 640,790 593,861 --
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Shares used in computation of net
income (loss) per share .................... 8,573,029 9,130,991 9,166,890 8,467,100
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Net income (loss) per share ..................... $ (0.13) $ 0.31 $ 0.07 $ (0.11)
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