{"ticker": {"uuid": "61910527-1c5c-4eb2-89ea-15ea913b9982", "symbol": "ATRA", "name": "Atara Biotherapeutics Inc", "exchange": "NASDAQ", "asset_type": "equity"}, "latest_week": "2026-06-12", "summary": "ATRA closed the latest completed week at 10.41 USD. The 4-week return is 8.7% and the 12-week return is 112.0%. Trend Signal is inactive, Market Dynamics is 0.83.", "description": "Atara Biotherapeutics, Inc., a commercially available T-cell immunotherapy company, develops treatments for cancer patients, autoimmune and viral diseases in the United States. 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