-- Natera (NTRA) reported a Q1 net loss late Thursday of $0.60 per diluted share, widening from the loss of $0.50 a year earlier.
Analysts polled by FactSet expected a loss of $0.54.
Revenue in the three months ended March 31 rose to $696.6 million from $501.8 million a year earlier.
Analysts surveyed by FactSet expected $617.1 million.
The company boosted full-year revenue guidance to $2.74 billion to $2.82 billion from the previous forecast of $2.62 billion to $2.70 billion.
Analysts expect $2.67 billion.
Natera shares fell 4.5% in after-hours trading.