How many employees work at Y-mAbs Therapeutics?

Y-mAbs Therapeutics, Inc. has approximately 52 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Y-mAbs Therapeutics’s total headcount has declined 48.9% from 101 employees in 2023 to 52 in 2026.

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

Is Y-mAbs Therapeutics hiring right now?

No, Y-mAbs Therapeutics is not actively hiring. Y-mAbs Therapeutics had 0 active job postings in 2026, a 200.0% decline from 2025 see job openings & hiring trends.

About Y-mAbs Therapeutics’s Workforce

Y-mAbs Therapeutics, Inc. is a Pharmaceuticals company that employs 52 people worldwide as of March 2026. It is the 4th-largest by headcount among its peers. Founded in 2015, the company is headquartered in Princeton, New Jersey.

Y-mAbs Therapeutics's workforce has declined 48.9% from 2023 to 2026, down 18.4% year over year in 2026. It fell to a low of 52 in 2026 Q1 before recovering. Its workforce is concentrated most in North America (54.4%), followed by Northern Europe (38.7%) and Sub-Saharan Africa (6.4%).

Y-mAbs Therapeutics's functional groups are Finance and Operations (51.9%), Engineering (38.7%), and Sales and Marketing (9.3%). The average salary is $182,028, ranging from a median of $201,000 in Northern Europe to $174,000 in North America, down 10.6% year over year in 2026.

Y-mAbs Therapeutics's active job postings fell 200.0% in 2026 to 0, with new postings per month cooling from 1 in 2023 to 0 in 2026. Overall employee sentiment is negative and broadly stable.

Sourced from Revelio Labs workforce data.

Headquarters
Princeton, New Jersey
Founded
2015
Industry
Pharmaceuticals
Employees
52
YoY
-18.4% (-49)

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Y-mAbs Therapeutics Annual Employee Count (2023-2026)

Interactive chart of Y-mAbs Therapeutics annual worldwide employee count from 2023 to 2026.
  • Y-mAbs Therapeutics had 52 employees in 2026, a 18.4% decline (-49) from 2025.
  • Y-mAbs Therapeutics had 68 employees in 2025, a 16.3% decline (-37) from 2024.
  • Y-mAbs Therapeutics had 105 employees in 2024, a 1.9% decline (-5) from 2023.
  • Y-mAbs Therapeutics had 110 employees in 2023, a 2.9% decline (-32) from 2022.

Y-mAbs Therapeutics's total workforce has declined from 101 employees in 2023 to 52 in 2026. Y-mAbs Therapeutics's headcount peaked at 122 in 2024.

Y-mAbs Therapeutics, Inc. quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q152-49-18.4%
2025Q468-37-16.3%
2025Q383-32-10.1%
2025Q2100-22-6.0%
2025Q1101-14-2.0%
2024Q4105-5-1.9%
2024Q3115+11+1.7%
2024Q2122+21+8.0%
2024Q1115+7+3.0%
2023Q4110-32-2.9%
2023Q3104-40-5.8%
2023Q2101-40-9.3%

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Y-mAbs Therapeutics Employee Count by Region (2026)

North America accounts for the largest share of Y-mAbs Therapeutics's global workforce with approximately 54% of total employees, followed by Northern Europe and Sub-Saharan Africa.

Y-mAbs Therapeutics employees by region

RegionEmployees% of Total
North America2854.4%
Northern Europe2038.7%
Sub-Saharan Africa36.4%
Southeast Asia00.5%

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Y-mAbs Therapeutics Employee Count by Department (2026)

Y-mAbs Therapeutics's employee groups are Finance and Operations (51.9%), Engineering (38.7%), and Sales and Marketing (9.3%).

Y-mAbs Therapeutics employees by department

DepartmentEmployees% of Total
Finance and Operations2751.9%
Engineering2038.7%
Sales and Marketing59.3%

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Y-mAbs Therapeutics Employee Salary by Region (2026)

Y-mAbs Therapeutics's average employee salary is $182,028 globally. Employees in Northern Europe receive the highest compensation. Pay is lowest in North America, at a median of $174,000.

Y-mAbs Therapeutics median employee salary by region (USD)

RegionMedian Salary
Northern Europe$201,000
North America$174,000

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Y-mAbs Therapeutics Job Openings and Hiring Trends (2023-2026)

Interactive chart of Y-mAbs Therapeutics annual active job postings from 2023 to 2026.
  • Y-mAbs Therapeutics had 0 active job postings in 2026, a 200.0% decline from 2025.
  • Y-mAbs Therapeutics had 0 active job postings in 2025, a 0% no change from 2024.
  • Y-mAbs Therapeutics had 0 active job postings in 2024, a 200.0% decline (-1) from 2023.
  • Y-mAbs Therapeutics had 1 active job postings in 2023, a 66.7% decline from 2022.
  • Hiring velocity in 2026: 0 new roles/month, down from 3 in 2025 and 1 in 2024.

Y-mAbs Therapeutics's hiring is slowing: active job postings fell 200.0% in 2026 to 0, with new postings per month cooling from 1 in 2023 to 0 in 2026.

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Y-mAbs Therapeutics Employee Sentiment (2026)

Revelio Labs tracks employee sentiment across Y-mAbs Therapeutics's workforce based on public professional data. Overall sentiment is negative and has held steady year over year in 2026.

Overall

NegativePositive

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Frequently Asked Questions About Y-mAbs Therapeutics

How fast is Y-mAbs Therapeutics growing?
In 2026, Y-mAbs Therapeutics's headcount shrank 18.4% to 52 employees, down from 101 in 2025.
See the full headcount history
Where are Y-mAbs Therapeutics employees located?
Most Y-mAbs Therapeutics employees are based in North America (54.4% of headcount), followed by Northern Europe and Sub-Saharan Africa.
Explore where the workforce is based
What is the average salary at Y-mAbs Therapeutics?
The average employee salary at Y-mAbs Therapeutics is approximately $182k per year.
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How many new job postings does Y-mAbs Therapeutics open per year?
In Q1 2026, Y-mAbs Therapeutics opened 0 new job postings. In 2025, Y-mAbs Therapeutics opened 32 new job postings — about 3 per month.
Track hiring trends by role
When was Y-mAbs Therapeutics founded and where is it headquartered?
Y-mAbs Therapeutics was founded in 2015 and is headquartered in Princeton, New Jersey.
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