NASDAQ: KPTI

How many employees work at Karyopharm Therapeutics?

Karyopharm Therapeutics, Inc. (KPTI) has approximately 226 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Karyopharm Therapeutics’s total headcount has declined 35.1% from 348 employees in 2023 to 226 in 2026.

Data source: Revelio LabsCoverage: Global workforce, 20232026Published August 2026

Is Karyopharm Therapeutics hiring right now?

Yes, Karyopharm Therapeutics is actively hiring. Karyopharm Therapeutics had 20 active job postings in 2026, a 35.3% increase from 2025 see job openings & hiring trends.

About Karyopharm Therapeutics’s Workforce

Karyopharm Therapeutics Inc. (Nasdaq: KPTI) is an innovation-driven pharmaceutical company dedicated to the discovery, development, and commercialization of novel first-in-class drugs directed against nuclear export and related targets for the treatment of cancer and other major diseases. Karyopharm's Selective Inhibitor of Nuclear Export (SINE) compounds function by binding with and inhibiting the nuclear export protein XPO1 (or CRM1). Karyopharm’s lead compound, XPOVIO® (selinexor), received accelerated approval from the U.S. Food and Drug Administration (FDA) in July 2019 in combination with dexamethasone as a treatment for patients with heavily pretreated multiple myeloma. In June 2020, XPOVIO was approved by the FDA as a treatment for patients with relapsed or refractory diffuse large B-cell lymphoma. A Marketing Authorization Application for selinexor for patients with heavily pretreated multiple myeloma is also currently under review by the European Medicines Agency. In addition to single-agent and combination activity against a variety of human cancers, SINE compounds have also shown biological activity in models of neurodegeneration, inflammation, autoimmune disease, certain viruses and wound-healing. Karyopharm has several investigational programs in clinical or preclinical development.

Sourced from Revelio Labs workforce data.

Ticker
NASDAQ: KPTI
Headquarters
Newton, Massachusetts
Founded
2008
Industry
Pharmaceuticals
Employees
226
YoY
-7.6% (-37)

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Karyopharm Therapeutics Annual Employee Count (2023-2026)

Interactive chart of Karyopharm Therapeutics annual worldwide employee count from 2023 to 2026.
  • Karyopharm Therapeutics had 226 employees in 2026, a 7.6% decline (-37) from 2025.
  • Karyopharm Therapeutics had 229 employees in 2025, a 9.4% decline (-41) from 2024.
  • Karyopharm Therapeutics had 270 employees in 2024, a 6.4% decline (-33) from 2023.
  • Karyopharm Therapeutics had 303 employees in 2023, a 10.9% decline (-51) from 2022.

Karyopharm Therapeutics, Inc. quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q1226-37-7.6%
2025Q4229-41-9.4%
2025Q3228-50-11.0%
2025Q2258-43-8.0%
2025Q1263-34-6.8%
2024Q4270-33-6.4%
2024Q3278-34-7.3%
2024Q2301-47-8.9%
2024Q1297-52-9.8%
2023Q4303-51-10.9%
2023Q3312-60-9.9%
2023Q2348-58-6.5%

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Karyopharm Therapeutics Employee Count by Region (2026)

Karyopharm Therapeutics employees by region

RegionEmployees% of Total
North America20996.1%
Southeast Asia31.4%
Sub-Saharan Africa10.7%
Central and Western Asia10.5%
Pacific Islands10.4%
South Asia10.3%
Central America and the Caribbean10.3%
Western Europe10.2%

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Karyopharm Therapeutics Employee Count by Department (2026)

Karyopharm Therapeutics employees by department

DepartmentEmployees% of Total
Finance and Operations10345.7%
Sales and Marketing8236.4%
Engineering4017.9%

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Karyopharm Therapeutics Employee Salary by Region (2026)

Karyopharm Therapeutics median employee salary by region (USD)

RegionMedian Salary
North America$203,000
Southeast Asia$20,000

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Karyopharm Therapeutics Job Openings and Hiring Trends (2023-2026)

Interactive chart of Karyopharm Therapeutics annual active job postings from 2023 to 2026.
  • Karyopharm Therapeutics had 20 active job postings in 2026, a 35.3% increase (+9) from 2025.
  • Karyopharm Therapeutics had 11 active job postings in 2025, a 58.8% increase (+5) from 2024.
  • Karyopharm Therapeutics had 6 active job postings in 2024, a 66.7% decline (-6) from 2023.
  • Karyopharm Therapeutics had 12 active job postings in 2023, a 136.8% decline from 2022.
  • Hiring velocity in 2026: 11 new roles/month, up from 7 in 2025 and 10 in 2024.

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Karyopharm Therapeutics Employee Sentiment (2026)

Overall

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Frequently Asked Questions About Karyopharm Therapeutics

How fast is Karyopharm Therapeutics growing?
In 2026, Karyopharm Therapeutics's headcount shrank 7.6% to 226 employees, down from 263 in 2025.
See the full headcount history
Where are Karyopharm Therapeutics employees located?
Most Karyopharm Therapeutics employees are based in North America (96.1% of headcount), followed by Southeast Asia and Sub-Saharan Africa.
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What is the average salary at Karyopharm Therapeutics?
The average employee salary at Karyopharm Therapeutics is approximately $218.5k per year.
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How many new job postings does Karyopharm Therapeutics open per year?
In Q1 2026, Karyopharm Therapeutics opened 34 new job postings. In 2025, Karyopharm Therapeutics opened 86 new job postings — about 7 per month.
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When was Karyopharm Therapeutics founded and where is it headquartered?
Karyopharm Therapeutics was founded in 2008 and is headquartered in Newton, Massachusetts.
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