Atara Biotherapeutics's quarterly market cap
increased
from Sep. 2025 ($103.32 Mil) to Dec. 2025 ($132.49 Mil) but then
declined
from Dec. 2025 ($132.49 Mil) to Mar. 2026 ($40.26 Mil).
Atara Biotherapeutics's annual market cap
increased
from Dec. 2023 ($54.59 Mil) to Dec. 2024 ($77.98 Mil) and
increased
from Dec. 2024 ($77.98 Mil) to Dec. 2025 ($132.49 Mil).
Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. Atara Biotherapeutics's Enterprise Value for Today is $93.09 Mil.
Atara Biotherapeutics (NAS:ATRA) Market Cap Explanation
Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the companys debt. The real price you pay is the Enterprise Value.
Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Biotechnology subindustry, Atara Biotherapeutics's Market Cap, along with its competitors' market caps and Market Cap data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Atara Biotherapeutics Market Cap vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Atara Biotherapeutics's Market Cap distribution charts can be found below:
* The bar in red indicates where Atara Biotherapeutics's Market Cap falls into.
Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.
Atara Biotherapeutics's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Atara Biotherapeutics (ATRA) has a Market Cap of $91.36 Mil as of Jun. 26, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Atara Biotherapeutics and its competitors. According to the industry distribution chart, Atara Biotherapeutics ranks #760 out of 1431 companies in the Biotechnology industry, placing it in the top 53.1%.
Is Atara Biotherapeutics' Market Cap too high?
Atara Biotherapeutics' current Market Cap is $91.36 Mil. The Biotechnology industry median Market Cap is 113.83. Atara Biotherapeutics' value of $91.36 Mil is 19.7% below this industry median. Based on the distribution chart, Atara Biotherapeutics ranks #760 out of 1431 companies in the Biotechnology industry, which is below the industry midpoint. Overall, Atara Biotherapeutics has a GF Score™ of 31/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Atara Biotherapeutics' Market Cap compare to RNTX and IBIO?
According to the Biotechnology industry distribution chart, Atara Biotherapeutics ranks #760 out of 1431 companies for Market Cap. This places Atara Biotherapeutics in the lower half of its industry. The industry median Market Cap is 113.83. Atara Biotherapeutics' value of $91.36 Mil is 19.7% below this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for a Biotechnology company?
The median Market Cap among Biotechnology companies is 113.83, based on 1,431 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Atara Biotherapeutics's current Market Cap of $91.36 Mil is 19.7% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Atara Biotherapeutics and its competitors. For the Biotechnology industry, the median Market Cap is 113.83 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Atara Biotherapeutics's current Market Cap is $91.36 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Atara Biotherapeutics stock overvalued right now?
Based on GuruFocus' analysis, Atara Biotherapeutics (ATRA) is currently considered Significantly Overvalued. The stock's GF Value™ is $1.56, compared to a current price of $10.14 — trading 550% above its estimated fair value. The current Market Cap is $91.36 Mil and 19.7% below the Biotechnology industry median of 113.83. Atara Biotherapeutics' overall GF Score™ is 31/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For Atara Biotherapeutics (ATRA), the current Market Cap is $91.36 Mil as of Jun. 26, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Atara Biotherapeutics (ATRA) Overvalued in 2026?
Based on GuruFocus' analysis, Atara Biotherapeutics stock appears to be overvalued.
The current stock price of $10.14 is trading 550% above its estimated GF Value™ of $1.56.
GuruFocus considers Atara Biotherapeutics to be Significantly Overvalued.
Key valuation signals for ATRA:
Market Cap: $91.36 Mil
GF Value™: $1.56 vs. price of $10.14 (550% above fair value)
Industry Position: 19.7% below the Biotechnology median (#760 of 1431)
No single metric tells the full story. See the ATRA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Atara Biotherapeutics Inc operates in the United States healthcare sector. It focuses on developing transformative therapies for patients with serious diseases, including solid tumors, hematologic cancers, and autoimmune diseases. It operates and manages business as one operating and reportable segment which is the business of developing therapeutics. The company's product candidates comprise Tab-cel, ATA3431, and ATA3219.
31GF Score
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