Upstream Bio, Inc. UPB

Q2 FY2026 · ended Jun 30, 2026 · Revenue $773,000, -17.5% YoY · Filed Aug 11, 2026

Upstream Bio, Inc. (UPB) files with the SEC under industry code 2834, Pharmaceutical Preparations. In Q2 of fiscal 2026, the quarter ended Jun 30, 2026, it reported revenue of $773,000 and a net loss of $39.7 million. Free cash flow was -$35.6 million. As of Jun 30, 2026 it held $261.3 million in cash and investments and $954,000 in total debt.

Revenue
$773,000
-17.5% vs year-ago quarter
Net income
$-39.70M
+0.7% vs year-ago quarter
Operating cash flow
$-35.62M
+9.2% vs year-ago quarter
Free cash flow
$-35.62M
+9.3% vs year-ago quarter
EPS
$-0.73
+1.4% vs year-ago quarter
Dividend per share
None
Shares outstanding
54.77M
+1.6% vs year-ago quarter
Net cash
$260.35M
Q2 FY2026
Operating margin
-5382.6%
TTM

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

Key figures

Fiscal-year totals from the annual reports; switch to Annual for the full-year view. Balance sheet lines are as of each year end.

Line
Q2 FY2026
Jun 30, 2026
Q1 FY2026
Mar 31, 2026
Q4 FY2025
Dec 31, 2025
Q3 FY2025
Sep 30, 2025
Q2 FY2025
Jun 30, 2025
Revenue
$773,000
$1.0M
$668,000
$683,000
$937,000
Operating income
-$42.4M
-$43.6M
-$46.2M
-$37.8M
-$44.3M
Net income
-$39.7M
-$40.6M
-$42.5M
-$33.7M
-$40.0M
Diluted EPS
-$0.73
-$0.75
-$0.79
-$0.63
-$0.74
Operating cash flow
-$35.6M
-$47.9M
-$30.6M
-$22.2M
-$39.2M
Free cash flow
-$35.6M
—
-$30.7M
-$22.3M
-$39.3M
Total assets
$281.2M
$318.1M
$353.8M
$391.2M
$420.5M
Total liabilities
$10.2M
$14.1M
$14.0M
$12.6M
$11.8M
Stockholders' equity
$271.0M
$304.0M
$339.8M
$378.6M
$408.7M
Cash and investments
$261.3M
$294.6M
$341.5M
$372.4M
$393.6M
Total debt
$954,000
$1.1M
$1.3M
$1.4M
$1.6M

Recent SEC filings

Recent SEC filings
Form Description Filed Period
8-K Current report
Regulation FD disclosure, Other events
Sep 1, 2026 Sep 1, 2026
10-Q Quarterly report Aug 11, 2026 Jun 30, 2026
8-K Current report
Results of operations
Aug 11, 2026 Aug 11, 2026
8-K Current report
Shareholder vote results
Jun 10, 2026 Jun 9, 2026
10-Q Quarterly report May 13, 2026 Mar 31, 2026
8-K Current report
Results of operations
May 13, 2026 May 13, 2026

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