Company / Shares Outstanding
Upstream Bio, Inc. Shares Outstanding History
FY2023-FY2025 · Annual data · Source: SEC filings
At a glance
Latest annual filing availableLatest Shares Outstanding
53.6M
FY2025
5-year range
3.0M / 53.6M
FY2023-FY2025
Trend
+1691.3%
vs FY2024
Sector context
#159 of 212
Health Care
What the data says
Shares Outstanding changed +1691% YoY in FY2025, a notable deviation from the 2-year average annual change of +846%.
Based on SEC 10-K filings.
53603398.00 in FY2025.
Increased from 2953756.00 to 53603398.00 over the past 2 years.
Health Care sector context is included.
Shares Outstanding over time
Growth rates
- 3-Year CAGR
- -
- 5-Year CAGR
- -
- 10-Year CAGR
- -
Sector benchmark
Top 25% in Health CareTop 25% of 212This company 53.6M Sector average 306.7M
▼
-82.5% below sector average
Key checks
Key Insights
- In FY2025, shares outstanding increased 1691.3% year-over-year.
- Ranks #159 out of 212 companies in the Health Care sector.
Company context
Key Data Points
- Low Piotroski F-Score: 2/9 (multiple financial health concerns)
- Altman Z-Score 8.68 (safe zone, above 2.9 threshold)
Data sourced from SEC EDGAR filings. Not investment advice.
Annual data
| Year | Shares OutstandingValue | YoY GrowthYoY |
|---|---|---|
| FY2025 | 53.6M | +1691.3% |
| FY2024 | 3.0M | +1.3% |
| FY2023 | 3.0M | - |
As of FY2025 · SEC 10-K · Updated Jun 30, 2026