SPTX (Seaport Therapeutics) Market Cap: $1,147.16 Mil (As of Jun. 27, 2026)


SPTX Seaport Therapeutics Inc SPTX
11 GF Score
Price $21.43
! 1 Warning Sign
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What is Seaport Therapeutics Market Cap?

Seaport Therapeutics SPTX +10.37% 11 Market Cap is $1,147.16 Mil as of Jun. 27, 2026. GuruFocus rates SPTX with a GF Score™ of 11/100. The stock has 1 warning sign investors should review. Among 1,431 Biotechnology companies, Seaport Therapeutics ranks better than 81.27% on this metric.

Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Seaport Therapeutics's share price for the quarter that ended in Dec. 2025 was $0. Seaport Therapeutics's Shares Outstanding (EOP) for the quarter that ended in Dec. 2025 was 53.03 Mil. Therefore, Seaport Therapeutics's market cap for the quarter that ended in Dec. 2025 was $0.00 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. Seaport Therapeutics's Enterprise Value for Today is $969.90 Mil.


Seaport Therapeutics  (NAS:SPTX) 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 company’s 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.


Seaport Therapeutics Market Cap Related Terms


Seaport Therapeutics Market Cap Historical Data

* Premium members only.

The historical data trend for Seaport Therapeutics's Market Cap can be seen below:

* 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.

Seaport Therapeutics Market Cap Chart

Seaport Therapeutics Annual Data
Trend Dec24 Dec25
Market Cap
0.00 0.00

Seaport Therapeutics Semi-Annual Data
Dec24 Dec25
Market Cap 0.00 0.00

SPTX vs LXRX, DRTS, MGTX: Market Cap Comparison

For the Biotechnology subindustry, Seaport Therapeutics'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.


Seaport Therapeutics Market Cap vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Seaport Therapeutics's Market Cap distribution charts can be found below:

* The bar in red indicates where Seaport Therapeutics's Market Cap falls into.


SPTX
11GF Score
Seaport Therapeutics Inc SPTX
Market Cap is just one metric. See GF Score™, valuation, warning signs, and more.
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Seaport Therapeutics Market Cap Calculation

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.

Seaport Therapeutics's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as

Market Cap (A: Dec. 2025 )=Share Price (A: Dec. 2025 )*Shares Outstanding (EOP) (A: Dec. 2025 )
=$0*53.028
=$0.00

Seaport Therapeutics's Market Cap for the quarter that ended in Dec. 2025 is calculated as

Market Cap (Q: Dec. 2025 )=Share Price (Q: Dec. 2025 )*Shares Outstanding (EOP) (Q: Dec. 2025 )
=$0*53.028
=$0.00

* 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.

Frequently Asked Questions Learn more about Market Cap →
What does a Market Cap of $1,147.16 Mil mean?
Seaport Therapeutics (SPTX) has a Market Cap of $1,147.16 Mil as of Jun. 27, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Seaport Therapeutics and its competitors. According to the industry distribution chart, Seaport Therapeutics ranks #268 out of 1431 companies in the Biotechnology industry, placing it in the top 18.7%.
Is Seaport Therapeutics' Market Cap too high?
Seaport Therapeutics' current Market Cap is $1,147.16 Mil. The Biotechnology industry median Market Cap is 113.83. Seaport Therapeutics' value of $1,147.16 Mil is 907.8% above this industry median. Based on the distribution chart, Seaport Therapeutics ranks #268 out of 1431 companies in the Biotechnology industry, which is in the top quartile — a strong position relative to peers. Overall, Seaport Therapeutics has a GF Score™ of 11/100, reflecting its overall financial health beyond just this single metric.
How does Seaport Therapeutics' Market Cap compare to LXRX and DRTS?
According to the Biotechnology industry distribution chart, Seaport Therapeutics ranks #268 out of 1431 companies for Market Cap. This places Seaport Therapeutics in the top 19% of its industry — outperforming the majority of peers. The industry median Market Cap is 113.83. Seaport Therapeutics' value of $1,147.16 Mil is 907.8% above 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. Seaport Therapeutics's current Market Cap of $1,147.16 Mil is 907.8% above 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 Seaport Therapeutics 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. Seaport Therapeutics's current Market Cap is $1,147.16 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Seaport Therapeutics stock overvalued right now?
Seaport Therapeutics (SPTX) has a current Market Cap of $1,147.16 Mil. The current Market Cap is $1,147.16 Mil and 907.8% above the Biotechnology industry median of 113.83. Seaport Therapeutics' overall GF Score™ is 11/100 with 1 warning sign 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 Seaport Therapeutics (SPTX), the current Market Cap is $1,147.16 Mil as of Jun. 27, 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.

Seaport Therapeutics Business Description

Address 101 Seaport Boulevard, Floor 12, Boston, MA, USA, 02210
Seaport Therapeutics Inc is a clinical-stage therapeutics company. The company focuses on invention and development of new medicines for patients with depression, anxiety, and other debilitating neuropsychiatric disorders. The company identified clinically validated mechanisms with established efficacy and safety profiles, historically limited by high first-pass metabolism, low bioavailability, and side effects. The company's pipeline products are based on Glyph, company's lymphatic-targeting prodrug technology is designed to bypass first-pass metabolism and thereby enhance a drug's oral bioavailability and reduce side effects.
11GF Score

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