SOUTH SAN FRANCISCO, Calif. (AP) _ Atara Biotherapeutics Inc. (ATRA) on Wednesday reported a loss of $50.9 million in its second quarter.

On a per-share basis, the South San Francisco, California-based company said it had a loss of $1.15.

The results did not meet Wall Street expectations. The average estimate of three analysts surveyed by Zacks Investment Research was for a loss of 97 cents per share.

Atara Biotherapeutics shares have more than doubled since the beginning of the year. The stock has more than doubled in the last 12 months.


This story was generated by Automated Insights ( using data from Zacks Investment Research. Access a Zacks stock report on ATRA at

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