Karyopharm Therapeutics (KPTI) - Shares outstanding

Number of shares outstanding as of May 2026 : 17,904,000

According to Karyopharm Therapeutics 's latest financial reports and stock price the company's current number of shares outstanding is 17,904,000. At the end of 2025 the company had 17,904,000 shares outstanding. The number of outstanding shares is usually impacted by stock plits and shares buy back.

Shares outstanding history for Karyopharm Therapeutics from 2012 to 2025

Shares Outstanding at the end of each year

Year	Shares Outstanding	Change
2025	17.9 M	113.34%
2024	8.39 M	10.03%
2023	7.62 M	27.21%
2022	5.99 M	18.85%
2021	5.04 M	2.64%
2020	4.91 M	15.36%
2019	4.26 M	5.18%
2018	4.05 M	24.91%
2017	3.24 M	17.57%
2016	2.75 M	15.74%
2015	2.38 M	9.43%
2014	2.17 M	13.71%
2013	1.91 M	193.25%
2012	0.65 M

Shares Outstanding for similar companies or competitors

Company	Shares Outstanding	differencediff.	Country
Abbott Laboratories ABT	1,736,599,451	9,599.51%	🇺🇸 USA
Merck MRK	2,474,626,766	13,721.64%	🇺🇸 USA
Bristol-Myers Squibb BMY	2,036,000,000	11,271.76%	🇺🇸 USA
Exelixis EXEL	266,458,000	1,388.26%	🇺🇸 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 Karyopharm Therapeutics (KPTI)

Number of shares outstanding as of May 2026 : 17,904,000