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The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations ...

TD Cowen analyst Phil Nadeau maintained a Buy rating on Atara Biotherapeutics (ATRA – Research Report) yesterday. The company’s shares closed last Friday at $6.90. See what stocks are ...

Atara Biotherapeutics (ATRA) came out with a quarterly loss of $1.19 per share versus the Zacks Consensus Estimate of a loss of $3.82. This compares to loss of $14 per share a year ago.