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Atara Biotherapeutics, Inc. (ATRA) Stock Analysis

$9.38 -$0.22 (-2.29%) |Avoid · 18
Atara Biotherapeutics, Inc. (ATRA) bottom line: signals are mixed — the Council read leans Split View (41/100) while the AI fundamental score is 18/100 (grade F); the two lenses disagree, so weigh the breakdown below. Strongest signal: Ray Dalio bullish · Biggest watch-out: Seth Klarman bearish.
MCap: $84.5M| P/E Ratio: 5.9| Vol: 28.0K| Target: $6.00 (-36.0%)| 52-wk range: $3.92 – $19.14
Data from FMP · Methodology

For informational purposes only. Not financial advice. Analysis by Sedat ANAK, Founder & Editor-in-Chief | AI-powered analysis. Data sourced from SEC filings and institutional-grade financial providers. Editorially reviewed. Not financial advice.

Atara Biotherapeutics, Inc. (ATRA) trades at $9.38 with AI Score 18/100 (Grade F). Atara Biotherapeutics, Inc. is a clinical-stage biotechnology company focused on developing off-the-shelf T-cell immunotherapies for cancer, autoimmune, and viral diseases. Market cap: $84.5M, Sector: Healthcare.

Price as of Aug 21, 2026 · Last analyzed: May 4, 2026
Atara Biotherapeutics, Inc. is a clinical-stage biotechnology company focused on developing off-the-shelf T-cell immunotherapies for cancer, autoimmune, and viral diseases. Their lead candidate, tabelecleucel, targets Epstein-Barr virus-driven diseases and the company is also advancing CAR T-cell therapies for hematologic malignancies and solid tumors.

ATRA stock analysis for 2026: Analysts have set a consensus price target of $6.00 for Atara Biotherapeutics, Inc., suggesting 36.0% downside from the current price of $9.38. The AI MoonshotScore is 18/100, indicating a strong bearish outlook. Key factors: analyst coverage, AI-driven quantitative scoring.

Watch the ATRA film Every key number, told as a short cinematic story — just press play. ~2 min
Council Score · Weighted Average of 3 Disciplines
Split View 41/100 · C

ATRA: 1/3 scored disciplines lean bearish. Dominant signal: Ray Dalio bullish.

How is this calculated? →
MoonshotScore · Growth Potential · 18/100
Business Quality
Weak Is this a genuinely good business?
Financial Safety
Neutral Could this blow up on me?
Valuation
Weak Am I paying a fair price?
Growth Durability
Neutral Is the growth real and likely to last?
Momentum
Moderate Is the market already moving on this?
Legends Council · 5 Legends + Moon AI
Ray Dalio
Bullish
Ken Griffin
Bearish
Jim Simons
Bullish
Izzy Englander
Bearish
Seth Klarman
Bearish
Moon AI
Bullish
Munger's Mindset · Balance Sheet & Valuation
Financial Health
Neutral
Margin of Safety
Undervalued
Council Score · Weighted Average of 3 Disciplines · See tabs for details →

Why this analysis is different

  • A sector-relative MoonshotScore — five pillars (business quality, financial safety, valuation, growth durability, momentum) re-ranked nightly against the full universe of US-listed common stocks.
  • An AI Council read across up to eight perspectives — value, macro, quantitative, and momentum lenses — that shows where they disagree instead of averaging the tension away.
  • Figures come straight from FMP and Yahoo Finance filings data. The AI writes the narrative around the numbers — it never edits the numbers.

Atara Biotherapeutics, Inc. (ATRA) Healthcare & Pipeline Overview

CEOAnhco Nguyen
Employees153
HeadquartersSouth San Francisco, CA, US
IPO Year2014

Atara Biotherapeutics, Inc. pioneers off-the-shelf T-cell immunotherapies, targeting cancers, autoimmune disorders, and viral diseases. Their lead program, tabelecleucel, addresses Epstein-Barr virus-driven diseases, while their CAR T-cell therapies aim to treat hematologic malignancies and solid tumors, positioning them in the competitive biotechnology landscape.

Data Provenance | Financial Data Quantitative Analysis NASDAQ Analysis: May 4, 2026

What Is the Investment Thesis for ATRA?

As of May 4, 2026 — figures reflect the data available on that date.

Atara Biotherapeutics presents a high-risk, high-reward investment opportunity within the biotechnology sector. A key value driver is the potential FDA approval and commercialization of tabelecleucel for EBV-driven PTLD, with Phase 3 trial results anticipated to drive near-term valuation. The company's CAR T-cell therapy programs, particularly those targeting mesothelin and B-cell malignancies, represent significant long-term growth catalysts. However, Atara faces challenges including clinical trial execution, regulatory hurdles, and competition from established pharmaceutical companies. The company's current market capitalization of $84.5M, coupled with a profit margin of 27.1%, suggests potential upside if clinical programs succeed, but also exposes investors to substantial downside risk if trials fail or regulatory approval is not obtained. Successful execution of clinical trials and strategic partnerships are critical for Atara to realize its potential.

Based on FMP financials and quantitative analysis

ATRA Key Highlights

Market capitalization of $84.5M reflects the company's current valuation in the biotechnology sector.

  • Profit margin of 27.1% indicates efficient cost management relative to revenue, although this can fluctuate significantly for biotech companies.
  • Gross margin of 82.4% demonstrates strong pricing power for its products and services, assuming consistent revenue generation.
  • Beta of -0.40 suggests the stock is less volatile than the overall market, potentially offering some downside protection during market downturns.
  • Development of tabelecleucel, a T-cell immunotherapy in Phase 3 clinical trials, represents a near-term catalyst for potential FDA approval and commercialization.

Who Are ATRA's Competitors?

ATRA is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.

Company Price Change Market Cap AI Score
GILD Gilead Sciences, Inc. $143.44 -2.82% $178B 62
NVS Novartis AG $160.31 +3.73% $305B 57
RLYB Rallybio Corporation $16.60 -2.35% $88.1M 81
ICCC ImmuCell Corporation $10.09 -0.39% $91.3M 77
JNCE Jounce Therapeutics, Inc. $1.88 +0.00% $99.0M 71
ORMP Oramed Pharmaceuticals Inc. $4.79 +0.00% $196M 77
CGEN Compugen Ltd. $2.65 +8.61% $251M 76
NAGE Niagen Bioscience Inc $3.15 -0.63% $251M 74

AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance

What Are ATRA's Key Strengths?

Proprietary off-the-shelf T-cell immunotherapy platform.

  • Clinical data supporting the efficacy of tabelecleucel.
  • Strategic collaborations with leading research institutions.
  • Experienced management team with expertise in immunotherapy development.

What Are ATRA's Weaknesses?

Limited financial resources compared to larger pharmaceutical companies.

  • Dependence on the success of tabelecleucel and other pipeline programs.
  • High regulatory hurdles and clinical trial risks.
  • Relatively small number of employees (153).

What Could Drive ATRA Stock Higher?

Phase 3 clinical trial results for tabelecleucel in EBV-driven post-transplant lymphoproliferative disease (PTLD).

  • Clinical data updates from CAR T-cell therapy programs targeting mesothelin and B-cell malignancies.
  • Regulatory submissions and potential FDA approval for tabelecleucel.
  • Strategic partnerships and collaborations for funding and commercialization.

What Are the Key Risks for ATRA?

Weak fundamentals — a Piotroski F-Score of 1/9 flags soft profitability, leverage or efficiency.

  • Clinical trial failures or regulatory setbacks for tabelecleucel and other pipeline programs.
  • Competition from established pharmaceutical companies with CAR T-cell therapies.
  • Patent challenges or intellectual property infringement.
  • Dependence on the success of key pipeline programs.
  • Limited financial resources compared to larger pharmaceutical companies.

What Are the Growth Opportunities for ATRA?

  • Expansion of Tabelecleucel's Indications: Atara has the opportunity to expand the use of tabelecleucel beyond post-transplant lymphoproliferative disease (PTLD) to other Epstein-Barr virus (EBV)-associated malignancies, such as nasopharyngeal carcinoma (NPC). The market for NPC treatment is estimated to reach $1.8 billion by 2030. Successful clinical trials in these additional indications would significantly increase tabelecleucel's market potential and solidify Atara's position in EBV-related cancer therapies.
  • Advancement of CAR T-Cell Therapy Programs: Atara's next-generation CAR T-cell therapies, including ATA2271 and ATA3271 targeting mesothelin for solid tumors, represent a significant growth opportunity. The solid tumor CAR T-cell therapy market is projected to reach $12 billion by 2028. Positive clinical data and strategic partnerships could accelerate the development and commercialization of these programs, establishing Atara as a leader in solid tumor immunotherapy.
  • Development of ATA188 for Multiple Sclerosis: ATA188, an immunotherapy for multiple sclerosis (MS), offers a diversification opportunity for Atara beyond oncology. The MS therapeutics market is expected to reach $30 billion by 2027. Successful clinical trials demonstrating efficacy in MS could position ATA188 as a novel treatment option and expand Atara's market reach into autoimmune diseases.
  • Strategic Partnerships and Collaborations: Atara can leverage strategic partnerships and collaborations to accelerate the development and commercialization of its therapies. Collaborations with academic institutions, such as Memorial Sloan Kettering Cancer Center and QIMR Berghofer Medical Research Institute, provide access to innovative technologies and expertise. Strategic partnerships with pharmaceutical companies, such as Bayer AG, can provide funding and commercialization support.
  • Geographic Expansion: Atara has the opportunity to expand its geographic reach beyond the United States and Europe. The market for cancer immunotherapies is growing rapidly in Asia-Pacific, particularly in countries like China and Japan. Establishing a presence in these markets through strategic partnerships or direct investment could significantly increase Atara's revenue potential.

What Are ATRA's Competitive Advantages?

  • Proprietary off-the-shelf T-cell immunotherapy platform.
  • Clinical data supporting the efficacy of tabelecleucel in EBV-driven diseases.
  • Strategic collaborations with leading research institutions and pharmaceutical companies.
  • Intellectual property protection for its T-cell immunotherapy technologies.

What Does ATRA Do?

Atara Biotherapeutics, Inc., founded in 2012 and headquartered in South San Francisco, California, is a biotechnology company focused on developing novel allogeneic or ‘off-the-shelf’ T-cell immunotherapies. These therapies are designed to treat patients suffering from cancer, autoimmune diseases, and viral infections. The company's lead product candidate is tabelecleucel (tab-cel®), an allogeneic T-cell immunotherapy in Phase 3 clinical trials for the treatment of Epstein-Barr virus (EBV)-driven post-transplant lymphoproliferative disease (PTLD), as well as other EBV-associated hematologic and solid tumors, including nasopharyngeal carcinoma (NPC). Beyond tabelecleucel, Atara is developing a pipeline of next-generation CAR T immunotherapies targeting various cancers. These include ATA2271 and ATA3271, which target mesothelin, a protein expressed in several solid tumors; ATA2431 and ATA3219, targeting B-cell malignancies; and ATA188, an immunotherapy for multiple sclerosis (MS). The company is also developing ATA368 for human papillomavirus (HPV)-associated cancers. Atara has established strategic collaborations and license agreements with institutions like Memorial Sloan Kettering Cancer Center, QIMR Berghofer Medical Research Institute, H. Lee Moffitt Cancer Center, and Bayer AG, enhancing its research and development capabilities and expanding its therapeutic pipeline. Atara's innovative approach to off-the-shelf T-cell immunotherapy positions it as a key player in the rapidly evolving field of cancer and autoimmune disease treatment.

What Products and Services Does ATRA Offer?

  • Develop off-the-shelf T-cell immunotherapies for cancer, autoimmune, and viral diseases.
  • Advance tabelecleucel, a T-cell immunotherapy, through Phase 3 clinical trials for Epstein-Barr virus (EBV)-driven post-transplant lymphoproliferative disease (PTLD).
  • Develop next-generation CAR T immunotherapies for hematologic malignancies and solid tumors.
  • Target mesothelin with ATA2271 and ATA3271 for solid tumors.
  • Develop ATA2431 and ATA3219 for B-cell malignancies.
  • Develop ATA188 for the treatment of multiple sclerosis.
  • Develop ATA368 program for patients with human papillomavirus associated cancers.
  • Establish strategic collaborations with research institutions and pharmaceutical companies.

How Does ATRA Make Money?

  • Develop and commercialize off-the-shelf T-cell immunotherapies.
  • Generate revenue through product sales upon regulatory approval.
  • Establish strategic partnerships and collaborations to fund research and development.
  • Out-license or co-develop therapies with pharmaceutical companies for commercialization.

What Industry Does ATRA Operate In?

Atara Biotherapeutics operates within the highly competitive and rapidly evolving biotechnology industry. The market for cancer immunotherapies is projected to reach $79.4 billion by 2027, driven by increasing cancer prevalence and advancements in personalized medicine. Atara's focus on off-the-shelf T-cell therapies differentiates it from companies developing autologous CAR T-cell therapies, which are more expensive and time-consuming to manufacture. Key competitors include companies like Gilead and Novartis, which have established CAR T-cell therapy platforms. Atara's success depends on its ability to navigate regulatory hurdles, demonstrate clinical efficacy, and secure strategic partnerships.

Who Are ATRA's Key Customers?

  • Patients with cancer, autoimmune diseases, and viral infections.
  • Hospitals and oncology clinics.
  • Pharmaceutical companies through licensing and collaboration agreements.
  • Research institutions through research collaborations.
AI Confidence: 71% Updated: May 4, 2026

Company Profile

Atara Biotherapeutics, Inc. operates in the Biotechnology industry within the Healthcare sector. It is headquartered in South San Francisco, US. The company is led by CEO Anhco Nguyen. ATRA has traded publicly since 2014.

ROE 26%

Key Financial Metrics

Return on equity for Atara Biotherapeutics, Inc. stands at 25.7%, a gauge of how efficiently it converts shareholder capital into profit. Return on assets is -47.3%, showing how much profit it generates from its asset base. Its free cash flow yield is -29.1%, a gauge of the cash the business throws off relative to its market value. A current ratio of 2.16 indicates the company holds enough short-term assets to cover its near-term obligations. Its earnings yield is -6.8%, the inverse of the P/E and a quick read on earnings relative to price.

ATRA Valuation & Market Position

With a $84.5M market cap, Atara Biotherapeutics, Inc. sits in the micro-cap segment of the market. Relative to its peer group, ATRA's quantitative score of 18/100 is below the peer average of 70/100.

Quarterly Financial Performance: Atara Biotherapeutics, Inc.

Revenue for Atara Biotherapeutics, Inc. came in at $630K during Q2 2026, a 22.1% improvement versus the preceding quarter. The company recorded a net loss of $4.8M, with diluted EPS of $-0.32. Quarter-over-quarter revenue has been mixed, typical for a micro-cap company operating in Healthcare. Across the four most recent quarters, ATRA averaged $-0.29 in diluted EPS.

F-Score 1/9

Financial Health

Atara Biotherapeutics, Inc.'s Piotroski F-Score is 1/9, a 9-point checklist of profitability, leverage and efficiency — flagging fundamental weakness worth scrutiny.

FY2026 est

Forward Outlook

Wall Street analysts project Atara Biotherapeutics, Inc. revenue of about $2.1M for fiscal 2026, with EPS near $-1.29.

ATRA Financials

Fundamental Snapshot

Revenue Growth (FY)
-6.3%
Net Income Growth (FY)
+138.3%
EPS Growth (FY)
+122.9%
Free Cash Flow Growth (FY)
+26.1%
Return on Equity (TTM)
+25.7%
Current Ratio
2.2

Based on FMP financials and quantitative analysis · FY 2025

Bull Case vs Bear Case

Bull Case

  • Recent insider buying suggests confidence in Atara's future, indicating that key stakeholders believe in the company's potential.
  • The positive sentiment from community discussions highlights excitement around Atara's innovative therapies, particularly in the oncology space.
  • Recent advancements in clinical trials have garnered attention, positioning Atara as a player in the competitive biotech industry.
  • Strategic partnerships formed in the last month have strengthened Atara's research capabilities and market reach.

Bear Case

  • Concerns over regulatory hurdles have emerged, with discussions around the lengthy approval processes impacting investor sentiment.
  • The market has shown skepticism regarding Atara's ability to compete with larger biotech firms, which has led to bearish community sentiment.
  • Recent earnings reports revealed challenges in revenue generation, raising doubts about the company's financial sustainability in the near term.
  • Ongoing volatility in the biotech sector has created a cautious atmosphere, with investors wary of potential risks associated with Atara's pipeline.

AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · March 2026

Recent Quarterly Results

Quarter Revenue Net Income EPS
Q2 2026 $630,000 -$5M -$0.32
Q1 2026 $516,000 -$4M -$0.29
Q4 2025 $2M -$3M -$0.25
Q3 2025 $3M -$4M -$0.32

Based on FMP financials and quantitative analysis

ATRA Latest News

ATRA Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations from Benzinga, Yahoo Finance, and Finnhub for ATRA.

Price Targets

Consensus target: $6.00

ATRA MoonshotScore

18/100

What does this score mean?

The MoonshotScore rates ATRA 0-100 on quantitative fundamentals — growth, financial health, valuation, momentum, and risk.

Leadership: Anhco Nguyen

CEO

Anhco Nguyen is the Chief Executive Officer of Atara Biotherapeutics, Inc. Details regarding their specific educational background and previous roles are not available in the provided context. However, as CEO, they are responsible for leading the company's strategic direction and overseeing its operations in the development of T-cell immunotherapies for cancer, autoimmune, and viral diseases. Their leadership is crucial for navigating the complex regulatory landscape and achieving clinical and commercial success.

Track Record: Specific achievements and milestones under Anhco Nguyen's leadership are not detailed in the provided context. However, their role as CEO involves guiding the company through critical clinical trials, securing strategic partnerships, and managing the overall growth and development of Atara Biotherapeutics. Their success will be measured by the company's ability to obtain regulatory approvals and commercialize its therapies.

Common Questions About ATRA (Healthcare)

What does the AI Score mean for ATRA?

ATRA holds an AI Score of 18/100 (Grade: F). This is an educational research signal, not a buy or sell recommendation. Atara Biotherapeutics, Inc. is a clinical-stage biotechnology company focused on developing off-the-shelf T-cell immunotherapies for cancer, autoimmune, and viral diseases. Their lead candidate …

What does Atara Biotherapeutics, Inc. do?

Atara Biotherapeutics, Inc. is a clinical-stage biotechnology company that develops off-the-shelf T-cell immunotherapies for patients with cancer, autoimmune, and viral diseases. Their lead product candidate, tabelecleucel, is in Phase 3 clinical trials for Epstein-Barr virus (EBV)-driven post-transplant lymphoproliferative disease (PTLD) and other EBV-associated malignancies.

What do analysts say about ATRA stock?

Analyst coverage of Atara Biotherapeutics, Inc. reflects a mixed outlook, acknowledging the potential of its T-cell immunotherapy platform while also recognizing the inherent risks associated with clinical-stage biotechnology companies. Key valuation metrics and growth considerations typically focus on the progress of tabelecleucel through regulatory approval and the potential of its CAR T-cell therapy programs.

What are the main risks for ATRA?

Atara Biotherapeutics, Inc. faces several key risks inherent to the biotechnology industry. Clinical trial failures or regulatory setbacks for tabelecleucel and other pipeline programs represent a significant risk. Competition from established pharmaceutical companies with CAR T-cell therapies and other immunotherapies could limit market share. Patent challenges or intellectual property infringement could also negatively impact the company's prospects.

What are the key factors to evaluate for ATRA?

Atara Biotherapeutics, Inc. (ATRA) holds an AI score of 18/100 (low). P/E: 5.9x vs the S&P 500's ~20-25x. Analysts target $6.00 (-36%). Not financial advice.

How frequently does ATRA data refresh on this page?

ATRA's price was last updated on Aug 21, 2026 and refreshes on page view during U.S. market hours — it is not a real-time exchange feed. Fundamentals update after quarterly filings; the MoonshotScore recalculates nightly; news aggregates continuously.

What has driven ATRA's recent stock price performance?

Atara Biotherapeutics, Inc. (ATRA) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Proprietary off-the-shelf T-cell immunotherapy platform. See the News tab for the latest drivers. Past performance does not predict future results.

Should investors consider ATRA overvalued or undervalued right now?

Atara Biotherapeutics, Inc. (ATRA) trades at 5.9x earnings. Analysts target $6.00 (-36%) — downside risk seen. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.

How do I research ATRA before investing?

Before investing in Atara Biotherapeutics, Inc. (ATRA), research these four areas: (1) the company's revenue model and competitive position (see Company Overview), (2) financial health through revenue growth, margins, and cash flow (see MoonshotScore), (3) analyst consensus ratings and price targets (see Analyst tab), and (4) specific risk factors that could impact the stock (see Risk Factors section).

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Price as of Analysis updated AI Score refreshed daily
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.

Analysis Notes
  • Information is based on provided source data and may not reflect the most current developments.
  • Financial data is based on available information and may be subject to change.
Data Sources

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