Inspire Medical Systems (STU:2DR) Shares Outstanding (Basic Average): 28.7 Mil (As of Mar. 2026)


STU:2DR Inspire Medical Systems Inc STU:2DR
55 GF Score
Price €37.80
GF Value €190.61
Valuation Possible Value Trap
! 7 Warning Signs
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What is Inspire Medical Systems Shares Outstanding (Basic Average)?

Inspire Medical Systems STU:2DR +3.85% 55 Shares Outstanding (Basic Average) is 28.7 Mil as of Mar. 2026. GuruFocus rates STU:2DR with a GF Score™ of 55/100 and a GF Value™ of €190.61 (Possible Value Trap). The stock has 7 warning signs investors should review.

Shares outstanding are shares that have been authorized, issued, and purchased by investors and are held by them. Inspire Medical Systems's average basic shares outstanding for the quarter that ended in Mar. 2026 was 28.7 Mil.


Inspire Medical Systems  (STU:2DR) Shares Outstanding (Basic Average) Explanation

A company may buy back shares or issue shares in any fiscal period. If a company buys back shares, we should observe that the total number of shares decline. If the company issues new shares, the number of shares outstanding increases.


Be Aware

Usually the presence of treasury shares and a history of buyback are good indicators that company has competitive advantage. But studies have shown that companies usually buy back at wrong time. Buying back shares below its intrinsic value increases value for remaining shareholders. Buying back overvalued shares destroys value for existing shareholders.


Inspire Medical Systems Shares Outstanding (Basic Average) Related Terms


Inspire Medical Systems Shares Outstanding (Basic Average) Historical Data

* Premium members only.

The historical data trend for Inspire Medical Systems's Shares Outstanding (Basic Average) 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.

Inspire Medical Systems Shares Outstanding (Basic Average) Chart

Inspire Medical Systems Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shares Outstanding (Basic Average)
Get a 7-Day Free Trial Premium Member Only Premium Member Only 27.26 28.07 29.30 29.76 29.37

Inspire Medical Systems Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Shares Outstanding (Basic Average) Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 29.70 29.51 29.33 28.94 28.70
STU:2DR
55GF Score
Inspire Medical Systems Inc STU:2DR
Shares Outstanding (Basic Average) is just one metric. See GF Score™, valuation, warning signs, and more.
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Inspire Medical Systems Shares Outstanding (Basic Average) Calculation

Shares outstanding are shares that have been authorized, issued, and purchased by investors and are held by them. They have voting rights and represent ownership in the corporation by the person that holds the shares. They should be distinguished from treasury shares, which are shares held by the corporation itself, having no exercisable rights.

Shares outstanding can be calculated as either basic or fully diluted. The fully diluted shares outstanding count includes diluting securities, such as options, warrants or convertibles.

Please note: GuruFocus named Shares Outstanding (EOP) is the shares for that exact time point. It is usually used to calculate balance sheet related items, such as Book Value per Share, etc. While Shares Outstanding (Diluted Average) and Shares Outstanding (Basic Average) are the weighted average shares over a period of time (a year, a quarter, or so). They are usually used to calculate income statement or cashflow statement related items, such as Earnings per Share (Diluted), etc.

What does a Shares Outstanding (Basic Average) of 28.7 Mil mean?
Inspire Medical Systems (STU:2DR) has a Shares Outstanding (Basic Average) of 28.7 Mil as of Mar. 2026. The average shares outstanding over two periods not accounting for dilutive securities like convertible bonds. View historical data on Inspire Medical Systems and its competitors.
Is Inspire Medical Systems' Shares Outstanding (Basic Average) too high?
Inspire Medical Systems' current Shares Outstanding (Basic Average) is 28.7 Mil. Overall, Inspire Medical Systems has a GF Score™ of 55/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Inspire Medical Systems' Shares Outstanding (Basic Average) compare to BFLY and ATEC?
Inspire Medical Systems' Shares Outstanding (Basic Average) of 28.7 Mil can be compared against companies in the Medical Devices & Instruments industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shares Outstanding (Basic Average) for a Medical Devices & Instruments company?
A good Shares Outstanding (Basic Average) depends on the Medical Devices & Instruments industry context. However, Shares Outstanding (Basic Average) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shares Outstanding (Basic Average) mean?
A high Shares Outstanding (Basic Average) can signal that a stock is expensive relative to its fundamentals. The average shares outstanding over two periods not accounting for dilutive securities like convertible bonds. View historical data on Inspire Medical Systems and its competitors. Inspire Medical Systems's current Shares Outstanding (Basic Average) is 28.7 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Inspire Medical Systems stock overvalued right now?
Based on GuruFocus' analysis, Inspire Medical Systems (STU:2DR) is currently considered Possible Value Trap. The stock's GF Value™ is €190.61, compared to a current price of €37.80 — trading 80.2% below its estimated fair value. The current Shares Outstanding (Basic Average) is 28.7 Mil. Inspire Medical Systems' overall GF Score™ is 55/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shares Outstanding (Basic Average) calculated?
Shares Outstanding (Basic Average) is calculated from a company's financial statements. For Inspire Medical Systems (STU:2DR), the current Shares Outstanding (Basic Average) is 28.7 Mil as of Mar. 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 Inspire Medical Systems (STU:2DR) Overvalued in 2026?

Based on GuruFocus' analysis, Inspire Medical Systems stock appears to be undervalued. The current stock price of €37.80 is trading 80.2% below its estimated GF Value™ of €190.61. GuruFocus considers Inspire Medical Systems to be Possible Value Trap.

Key valuation signals for STU:2DR:

  • Shares Outstanding (Basic Average): 28.7 Mil
  • GF Value™: €190.61 vs. price of €37.80 (80.2% below fair value)
  • GF Score™: 55/100 with 7 warning signs

No single metric tells the full story. See the STU:2DR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Inspire Medical Systems Business Description

Other Exchanges INSP:USA
Address 5500 Wayzata Boulevard, Suite 1600, Golden Valley, MN, USA, 55416
Inspire Medical Systems Inc operates as a medical technology company. It focuses on the development and commercialization of minimally invasive solutions for patients with obstructive sleep apnea (OSA). It offers Inspire system, a neurostimulation technology that provides a safe and effective treatment for moderate to severe obstructive sleep apnea. The firm has operating footprints in the United States and All other countries wherein, it generates a majority of its revenue from the United States. Its segment revenues are derived from the sales of its product, the Inspire system, to hospitals and ambulatory surgery centers in the U.S. and in selected countries in Europe and the Asia Pacific region.
55GF Score

Get the complete analysis for STU:2DR

Shares Outstanding (Basic Average) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€37.80
Price
€190.61
GF Value