ANRO (Alto Neuroscience) Shares Buyback Ratio %: -29.63 (As of Aug. 24, 2026)

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ANRO Alto Neuroscience Inc ANRO
12 GF Score
Price $36.25
! 2 Warning Signs
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What is Alto Neuroscience Shares Buyback Ratio %?

Alto Neuroscience ANRO +5.75% 12 Shares Buyback Ratio % is -29.63 as of Aug. 24, 2026. GuruFocus rates ANRO with a GF Score™ of 12/100. The stock has 2 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. Alto Neuroscience's current shares buyback ratio was -29.63%.

Alto Neuroscience Shares Buyback Ratio % Related Terms

Alto Neuroscience Shares Buyback Ratio % Historical Data

* Premium members only.

The historical data trend for Alto Neuroscience'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.

Alto Neuroscience Shares Buyback Ratio % Chart

Alto Neuroscience Annual Data
Trend Dec21 Dec22 Dec23 Dec24 Dec25
Shares Buyback Ratio %
0.00 0.00 0.00 -5.53 -18.29

Alto Neuroscience Quarterly Data
Dec21 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 0.00 -0.35 -17.51 -9.80 -0.12
ANRO
12GF Score
Alto Neuroscience Inc ANRO
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Alto Neuroscience Shares Buyback Ratio % Calculation

Alto Neuroscience'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 )
=(26.987 - 31.924) / 26.987
=-18.29%

Alto Neuroscience's Shares Buyback Ratio for the quarter that ended in Jun. 2026 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Mar. 2026 ) - Shares Outstanding (EOP) (A: Jun. 2026 )) / Shares Outstanding (EOP) (A: Mar. 2026 )
=(35.053 - 35.094) / 35.053
=-0.12%

* 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 -29.63 mean?
Alto Neuroscience (ANRO) has a Shares Buyback Ratio % of -29.63 as of Aug. 24, 2026. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on Alto Neuroscience and its competitors.
Is Alto Neuroscience's Shares Buyback Ratio % too high?
Alto Neuroscience's current Shares Buyback Ratio % is -29.63. Overall, Alto Neuroscience has a GF Score™ of 12/100, reflecting its overall financial health beyond just this single metric.
How does Alto Neuroscience's Shares Buyback Ratio % compare to VOR and CGEM?
Alto Neuroscience's Shares Buyback Ratio % of -29.63 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 Alto Neuroscience and its competitors. Alto Neuroscience's current Shares Buyback Ratio % is -29.63. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Alto Neuroscience stock overvalued right now?
Alto Neuroscience (ANRO) has a current Shares Buyback Ratio % of -29.63. The current Shares Buyback Ratio % is -29.63. Alto Neuroscience's overall GF Score™ is 12/100 with 2 warning signs to review. 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 Alto Neuroscience (ANRO), the current Shares Buyback Ratio % is -29.63 as of Aug. 24, 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.

Alto Neuroscience Business Description

Address 650 Castro Street, Suite 450, Mountain View, CA, USA, 94041
Alto Neuroscience Inc is a clinical-stage biopharmaceutical company with a mission to redefine psychiatry by leveraging individual's neurobiology to develop personalized and effective treatment options. The company currently consists of different clinical-stage assets such as ALTO-100, ALTO-202, ALTO-207, ALTO-101, and ALTO-300 among others initially targeting depressive disorders and schizophrenia populations as identified by independent brain-based biomarkers.
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$36.25
Price