aTyr Pharma (ATYR) - Shares outstanding

Number of shares outstanding as of May 2026 : 98,010,084

According to aTyr Pharma's latest financial reports and stock price the company's current number of shares outstanding is 98,010,084. At the end of 2025 the company had 98,010,084 shares outstanding. The number of outstanding shares is usually impacted by stock plits and shares buy back.

Shares outstanding history for aTyr Pharma from 2019 to 2025

Shares Outstanding at the end of each year

Year	Shares Outstanding	Change
2025	98.01 M	18.48%
2024	82.72 M	42.91%
2023	57.88 M	98.81%
2022	29.11 M	4.77%
2021	27.79 M	162.84%
2020	10.57 M	171.74%
2019	3.89 M

Shares Outstanding for similar companies or competitors

Company	Shares Outstanding	differencediff.	Country
Vertex Pharmaceuticals VRTX	254,100,000	159.26%	🇺🇸 USA
Veracyte VCYT	79,178,087	-19.21%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Number of shares outstanding for aTyr Pharma (ATYR)

Number of shares outstanding as of May 2026 : 98,010,084