Ionis Pharmaceuticals' GAAP loss for 2020 was $487 million, compared to a profit of $303 million in the previous year. Revenues fell 35.1% to $0.729 billion from $1.123 billion a year earlier.
Ionis Pharmaceuticals' GAAP loss for 2020 was $487 million, compared to a profit of $303 million in the previous year. Revenues fell 35.1% to $0.729 billion from $1.123 billion a year earlier. 
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