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Upstream Bio
ActiveOperating status — whether the company still runs independently. “Closed” usually means it was acquired, merged, or shut down.🔥 HighHeat score — how much recent activity & attention the company has (web traffic, news, hiring).📈 Low growthGrowth score — momentum trend across web traffic, headcount and other growth signals. Waltham, Massachusetts, United States Founded 2021 51-100 employees For Profit
Upstream Bio focuses on developing an antibody therapy for the treatment of severe asthma.
Total Funding
Available in Pro Last Funding
Available in Pro Acquisitions
0
Monthly Visits
Available in Pro Contacts
33
Ticker
UPB
NASDAQ
Company Details
Funding & Financials
Pro- Total funding
- Funding rounds
- Last funding
- Last funding type
- Last funding date
- Funding status
- Total equity funding
- Revenue range
IPO & Stock
- IPO status
- Public
- Ticker
- UPB
- Exchange
- NASDAQ
- IPO date
- Oct 11, 2024
- Raised at IPO
- $255M
- Valuation at IPO
- $873M
Web Traffic
Pro- Monthly visits
- Global traffic rank
- 6-mo avg visits
- Visit duration (s)
- Pages / visit
- Bounce rate
- Rank change (mo)
Technology & IP
- Active technologies
- 12
- IT spend
- $61K
Company Info
- Founded
- 2021
- Employees
- 51-100
- Operating status
- Active
- Company type
- For Profit
- Org types
- company
- Founders
- 2
- Sub-organizations
- 1
- News articles
- 108
- HQ
- Waltham, Massachusetts, United States
- Region
- Greater Boston Area, East Coast, New England
- Exit date
- Oct 11, 2024
Signals & Scores
- Heat score
- High
- Growth score
- Low
- Trend (7d)
- -0.1
- Trend (30d)
- -1.2
- Trend (90d)
- -1.6
- Last leadership hire
- May 20, 2025
Key People at Upstream Bio
Chief Executive Officer
SVP, People and Culture
Chief Financial Officer and Chief Operating Officer
33
professional contacts at Upstream Bio
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