Aton (FRA:3HB) Shares Buyback Ratio %: -7.36 (As of Sep. 16, 2026)

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What is Aton Shares Buyback Ratio %?

Aton FRA:3HB -5.56% Shares Buyback Ratio % is -7.36 as of Sep. 16, 2026. The stock has 4 warning signs investors should review.

Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.

GuruFocus calculates shares buyback ratio using previous shares outstanding minus the current shares outstanding, and then divides by previous shares outstanding. Aton's current shares buyback ratio was -7.36%.

Aton Shares Buyback Ratio % Related Terms

Aton Shares Buyback Ratio % Historical Data

* Premium members only.

The historical data trend for Aton's Shares Buyback Ratio % 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.

Aton Shares Buyback Ratio % Chart

Aton Annual Data
Trend Dec15 Dec16 Dec17 Dec18 Dec19 Dec21 Dec22 Dec23 Dec24 Dec25
Shares Buyback Ratio %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -13.08 -3.55 -39.97 -108.81 -3.51

Aton Semi-Annual Data
Jun11 Dec11 Jun12 Dec12 Jun13 Dec13 Jun14 Dec14 Jun15 Jun16 Dec16 Jun17 Jun18 Jun20 Jun21 Jun22 Dec22 Jun24 Jun25 Dec25
Shares Buyback Ratio % 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 0.00 0.00 -77.65 -96.40 -1.53

Aton Shares Buyback Ratio % Calculation

Aton's Shares Buyback Ratio for the fiscal year that ended in Dec. 2025 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Dec. 2024 ) - Shares Outstanding (EOP) (A: Dec. 2025 )) / Shares Outstanding (EOP) (A: Dec. 2024 )
=(800.068017 - 828.118245) / 800.068017
=-3.51%

Aton's Shares Buyback Ratio for the quarter that ended in Dec. 2025 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Jun. 2025 ) - Shares Outstanding (EOP) (A: Dec. 2025 )) / Shares Outstanding (EOP) (A: Jun. 2025 )
=(815.618245 - 828.118245) / 815.618245
=-1.53%

* 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 Shares Buyback Ratio % →
What does a Shares Buyback Ratio % of -7.36 mean?
Aton (FRA:3HB) has a Shares Buyback Ratio % of -7.36 as of Sep. 16, 2026. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on Aton and its competitors.
Is Aton's Shares Buyback Ratio % too high?
Aton's current Shares Buyback Ratio % is -7.36.
How does Aton's Shares Buyback Ratio % compare to VRTX and REGN?
Aton's Shares Buyback Ratio % of -7.36 can be compared against companies in the Biotechnology industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shares Buyback Ratio % for a Biotechnology company?
A good Shares Buyback Ratio % depends on the Biotechnology industry context. However, Shares Buyback Ratio % 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 Buyback Ratio % mean?
A high Shares Buyback Ratio % can signal that a stock is expensive relative to its fundamentals. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on Aton and its competitors. Aton's current Shares Buyback Ratio % is -7.36. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aton stock overvalued right now?
Aton (FRA:3HB) has a current Shares Buyback Ratio % of -7.36. The current Shares Buyback Ratio % is -7.36. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shares Buyback Ratio % calculated?
Shares Buyback Ratio % is calculated from a company's financial statements. For Aton (FRA:3HB), the current Shares Buyback Ratio % is -7.36 as of Sep. 16, 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.

Aton Business Description

Other Exchanges ALTAO:France3HB:Germany
Address 850 boulevard Sebastien Brant, Illkirch Graffenstaden, Strasbourg, FRA, 67400
Aton is a biopharmaceutical company that foresees a focused future of medicine. The company specializes in the main businesses: Inoviem Scienfic and B Cell Design. The company's services include pre-clinical and Clinical Services, Monoclonal Antibodies Production, Laboratory equipment Production, and Human Tissue Provision.