Zenas BioPharma, Inc. ZBIO

FY2025 · ended Dec 31, 2025 · Revenue $10.00M, +100.0% YoY · Filed Mar 16, 2026

Zenas BioPharma, Inc. (ZBIO) files with the SEC under industry code 2834, Pharmaceutical Preparations. In fiscal 2025, which ended Dec 31, 2025, it reported revenue of $10.0 million and a net loss of $377.7 million. Free cash flow was -$172.4 million. As of Sep 30, 2026 it held $647.1 million in cash and investments and $1.5 million in total debt.

Revenue (TTM)
$11.00M
+131.4% vs year-ago TTM
Net income (TTM)
$-541.81M
-185.3% vs year-ago TTM
Operating cash flow (TTM)
$-242.83M
-53.2% vs year-ago TTM
Free cash flow (TTM)
$-242.83M
-53.1% vs year-ago TTM
EPS (TTM)
$-9.14
-101.5% vs year-ago TTM
Dividend per share
None
Shares outstanding
57.36M
+37.2% vs prior year
Net cash
$645.54M
as of Sep 30, 2026
Operating margin
-4785.5%
FY 2026

Company profile

Industry
Pharmaceutical Preparations (SIC 2834)
Listed as
ZBIO (Nasdaq)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
Waltham, MA
SEC filer status
, Emerging growth company
SEC CIK
1953926
Former names
Zenas BioPharma (Cayman) Ltd (until Nov 15, 2022)

Other Pharmaceutical Preparations companies

Key figures

Fiscal-year totals from the annual reports. Balance sheet lines are as of each year end.

Line
FY 2025
Dec 31, 2025
FY 2024
Dec 31, 2024
Revenue
$10.0M
$5.0M
Operating income
-$383.1M
-$163.9M
Net income
-$377.7M
-$157.0M
Diluted EPS
-$8.44
-$11.89
Operating cash flow
-$172.3M
-$119.7M
Free cash flow
-$172.4M
-$119.8M
Total assets
$383.6M
$370.0M
Total liabilities
$141.5M
$57.5M
Stockholders' equity
$242.1M
$312.5M
Cash and investments
$360.5M
$350.8M
Total debt
$80.0M
$1.0M

Recent SEC filings

Recent SEC filings
Form Description Filed Period
8-K Current report
Regulation FD disclosure
Oct 13, 2026 Oct 12, 2026
10-Q Quarterly report Aug 13, 2026 Jun 30, 2026
8-K Current report
Results of operations, Officer or director change
Aug 13, 2026 Aug 12, 2026
10-Q Quarterly report May 13, 2026 Mar 31, 2026
8-K Current report
Results of operations, Officer or director change, Shareholder vote results
May 13, 2026 May 11, 2026
8-K Current report
Material agreement, New debt, Other events
Mar 31, 2026 Mar 26, 2026

Source: SEC EDGAR filings. This is company-reported data, not investment advice.