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Stock overview

ATRA · Atara Biotherapeutics, Inc.

Is ATRA setting up for a breakout, what are traders on X and the news saying, are its insiders buying, and how is the business doing? Everything Raspberry Trades measures on Atara Biotherapeutics, Inc., in one place.

Today's breakout radar

Is ATRA setting up for a breakout?

Breakout Radar API →

Not today. ATRA is not on today's radar: no tight base just under a resistance that has been tested again and again.

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What are traders on X saying about ATRA?

Stock Sentiment API →

No recent reading for ATRA. With a free account you can read today's X sentiment on any US stock through the Sentiment API.

What is the news saying about ATRA?

News Sentiment API →

No recent news reading for ATRA. The News Sentiment API reads today's headlines on any US stock.

Are ATRA insiders buying or selling?

Insider Trading API →
$1000K
Bought, last 3 months
$0
Sold, last 3 months
$5.7M
Bought, 12 months
$3.7M
Sold, 12 months

Open-market trades only, from SEC Form 4 filings — option exercises, tax withholding and grants are left out.

  • Bought · Cherry Brian N$1000K · Sep 4, 2026
  • Sold · Panacea Innovation Ltd$3.2M · May 7, 2026
  • Bought · EcoR1 Capital, LLC$4.7M · May 7, 2026
  • Sold · Panacea Innovation Ltd$489K · Jan 12, 2026
  • Bought · Panacea Innovation Ltd$670K · Aug 15, 2025
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Measured data, not recommendations. Not investment advice.