Upstream Bio, Inc. balance sheet UPB

As of Jun 30, 2026, Upstream Bio, Inc. had total assets of $281.2 million and total liabilities of $10.2 million. Total assets were down 33.1% from a year earlier. Stockholders' equity was $271.0 million. It held $261.3 million in cash and investments against $954,000 of total debt, net cash of $260.4 million. The current ratio, current assets divided by current liabilities, was 27.99.

USD in millions, except ratios and per-share amounts. The percent under a figure is the change from the year before.

Line
FY 2026
Jun 30, 2026
FY 2025
Dec 31, 2025
FY 2024
Dec 31, 2024
Assets
Cash
79
+74.7%
102
-68.8%
326
Short-term investments
182
-47.7%
240
+66.0%
145
Cash and investments
261
-33.6%
342
-27.4%
470
Receivables
1
-17.6%
1
+9.0%
1
Total current assets
280
-33.2%
352
-26.6%
479
Property and equipment, net
0
-15.4%
1
-4.0%
1
Goodwill
—
—
0
Total assets
281
-33.1%
354
-26.6%
482
Liabilities and equity
Accounts payable
2
-9.3%
3
-32.5%
4
Total current liabilities
10
-8.6%
13
+25.3%
11
Total liabilities
10
-13.3%
14
+18.0%
12
Stockholders' equity
271
-33.7%
340
-27.7%
470
Debt
Lease liabilities
1
-38.9%
1
-30.8%
2
Total debt
1
-38.9%
1
-30.8%
2
Net cash
260
-33.6%
340
-27.4%
469
Ratios
Current ratio
27.99x
26.15x
44.63x
Debt to equity
0.00x
0.00x
0.00x
Return on equity
-57.76%
-42.22%
-13.37%
Return on assets
-55.66%
-40.55%
-13.04%
Book value per share
4.95
6.26
8.77
How these figures are calculated

Annual columns are full-year amounts from the annual report (Form 10-K, 20-F, or 40-F). If a company restates a year, the latest filed number is shown. USD in millions, except ratios and per-share amounts. Cash and investments adds short-term and long-term marketable securities to cash. Debt due within a year is the borrowings that are not already in long-term debt. Total debt is those borrowings plus lease liabilities. Net cash is cash and investments minus total debt. Return on equity and return on assets divide the trailing twelve months of net income by the balance on that date. Debt to EBITDA uses the trailing twelve months of EBITDA. The first column is the latest balance sheet when it is newer than the latest fiscal year. More on our methodology.

Company profile

Industry
Pharmaceutical Preparations (SIC 2834)
Listed as
UPB (Nasdaq)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
Waltham, MA
SEC filer status
, Emerging growth company
SEC CIK
2022626

Other Pharmaceutical Preparations companies

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