PASADENA, Calif. (AP) — PASADENA, Calif. (AP) — Arrowhead Research Corp. (ARWR) on Monday reported a loss of $173.1 million in its fiscal first quarter.

The Pasadena, California-based company said it had a loss of $1.39 per share.

The results fell short of Wall Street expectations. The average estimate of seven analysts surveyed by Zacks Investment Research was for a loss of 42 cents per share.

The drug developer posted revenue of $2.5 million in the period, which also missed Street forecasts. Four analysts surveyed by Zacks expected $169.6 million.

Arrowhead Research shares have climbed nearly 7% since the beginning of the year. In the final minutes of trading on Monday, shares hit $20.04, a decrease of 35% in the last 12 months.

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This story was generated by Automated Insights (http://automatedinsights.com/ap) using data from Zacks Investment Research. Access a Zacks stock report on ARWR at https://www.zacks.com/ap/ARWR