Keros Therapeutics (KROS) Shares Outstanding (2019 - 2025)

Keros Therapeutics (KROS) has 7 years of Shares Outstanding data on file, last reported at $40.7 million in Q4 2025.

• For the quarter ending Q4 2025, Shares Outstanding changed 0.29% year-over-year to $40.7 million; the trailing twelve-month figure through Dec 2025 stood at $40.7 million (changed 0.29% YoY), and the FY2025 full-year result was $40.7 million, changed 0.29% from the prior year.
• Shares Outstanding for Q4 2025 stood at $40.7 million, roughly flat from $40.6 million in the prior quarter.
• Across five years, Shares Outstanding topped out at $40.7 million in Q4 2025 and bottomed at $23.3 million in Q1 2021.
• The 5-year median for Shares Outstanding is $29.7 million (2023), against an average of $31.6 million.
• The widest annual swing landed in 2021, when Shares Outstanding soared 833.97%; it then climbed 0.29% in 2025.
• A 5-year view of Shares Outstanding shows it stood at $24.0 million in 2021, then gained by 14.88% to $27.5 million in 2022, then rose by 15.6% to $31.8 million in 2023, then gained by 27.37% to $40.6 million in 2024, then increased by 0.29% to $40.7 million in 2025.
• The last three Shares Outstanding figures came in at $40.7 million (Q4 2025), $40.6 million (Q3 2025), and $40.6 million (Q2 2025), per Business Quant data.

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