Company overview

Zenas BioPharma (Nasdaq: ZBIO) is a clinical-stage global biopharmaceutical company committed to becoming a leader in the development and commercialization of transformative immunology-based therapies for patients in need. Our core business strategy combines our experienced leadership team with a disciplined product candidate acquisition approach to identify, acquire and develop product candidates globally that we believe can provide superior clinical benefits to patients living with autoimmune diseases. Zenas’ lead product candidate, obexelimab, is a bifunctional monoclonal antibody designed to bind both CD19 and FcγRIIb, which are broadly present across B cell lineage, to inhibit the activity of cells that are implicated in many autoimmune diseases without depleting them. We believe that obexelimab’s mechanism of action and chronic dosing regimen may broadly and effectively address the pathogenic role of B cell lineage in chronic autoimmune disease.
Founded in 2020
Waltham, Massachusetts, USA
148 employees (5 in marketing)
100% recommend to a friend
100% positive business outlook

Salaries

Typical salary range

$217,600 – $272,000

/ yr

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People

Hiring activity

Open marketing jobs over time

4 open now

Headcount trend

Company growth over the last 12 months

Headcount +23.1% year over year

Funding

Total funding

$513M

Last raise

$120M

Post IPO Equity, 5 months ago

Funding history

Oct 2025

Post IPO Equity Zenas BioPharma · $120M

Sep 2025

Post IPO Debt Zenas BioPharma · $75M

May 2024

Series C Zenas BioPharma · $200M

Nov 2022

Series B Zenas BioPharma · $118M

Mar 2021

Series A Zenas BioPharma

Audience

Monthly website visitors
6.7K
Month over month-20.6%
Quarter over quarter+64.2%
Top sourceDirect (43.7%)
Ad budget per month$0.0
Average search rank47.5
Traffic source mix
Direct
43.7%
Search
33.9%
Social
15.6%
Referral
5.4%
Paid referral
1.3%

LinkedIn followers

Follower count and growth

Total followers

12.2K

12-mo growth

+56.1%

Monthly growth

+4.2%

News

Links