RICHMOND, Calif. (AP) _ Sangamo Therapeutics Inc. (SGMO) on Wednesday reported a loss of $16.6 million in its second quarter.

On a per-share basis, the Richmond, California-based company said it had a loss of 17 cents.

The results did not meet Wall Street expectations. The average estimate of five analysts surveyed by Zacks Investment Research was for a loss of 15 cents per share.

The drug developer posted revenue of $21.4 million in the period.

Sangamo shares have dropped 16 percent since the beginning of the year. In the final minutes of trading on Wednesday, shares hit $13.80, an increase of 59 percent 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 SGMO at https://www.zacks.com/ap/SGMO