Upstream Bio (UPB) Shares Outstanding (2023 - 2026)
Upstream Bio (UPB) posted quarterly Shares Outstanding (Entity) of $54.4 million for Q1 2026, up 1.45% year-over-year from $53.6 million in Q1 2025, and little changed quarter-over-quarter from $54.2 million in Q4 2025.
Upstream Bio (UPB) Shares Outstanding (2023 - 2026) Analysis & Trends
Upstream Bio's Shares Outstanding (Entity) history runs 4 years deep, the most recent figure standing at $54.4 million for Q1 2026.
- In Q1 2026, Shares Outstanding (Entity) rose 1.45% year-over-year to $54.4 million; the TTM figure through Mar 2026 stood at $54.4 million (up 1.45% YoY), while the FY2025 annual figure was $54.2 million, up 296.41% from the prior year.
- Shares Outstanding (Entity) for Q1 2026 stood at $54.4 million, roughly flat from $54.2 million in the prior quarter.
- The five-year high for Shares Outstanding (Entity) was $54.4 million in Q1 2026, with the low at $3.0 million in Q3 2023.
- The 4-year median for Shares Outstanding (Entity) is $13.7 million (2024), against an average of $27.2 million.
- The sharpest annual moves came in 2025 and 2026: Shares Outstanding (Entity) jumped 1690.39% in 2025, then gained 1.45% in 2026.
- Upstream Bio's Shares Outstanding (Entity) stood at $3.0 million in 2023, then soared by 357.22% to $13.7 million in 2024, then soared by 296.41% to $54.2 million in 2025, then grew by 0.34% to $54.4 million in 2026.
- Business Quant data shows UPB's Shares Outstanding (Entity) at $54.4 million in Q1 2026, $54.2 million in Q4 2025, and $54.0 million in Q3 2025.
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Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Qtr) |
|---|---|---|---|---|---|
| 1 | Vertex Pharmaceuticals | 128.13 Bn | 120.28 Bn | 2.84 Bn | 253.70 Mn |
| 2 | Regeneron Pharmaceuticals | 112.33 Bn | 104.33 Bn | 3.93 Bn | 102.80 Mn |
| 3 | Argenx Se | 53.24 Bn | 48.05 Bn | 1.41 Bn | 62.19 Mn |
| 4 | Revolution Medicines | 43.64 Bn | 43.64 Bn | - | 210.89 Mn |
| 5 | BeOne Medicines | 39.27 Bn | 34.17 Bn | 1.53 Bn | 1.45 Bn |
| 6 | MindWalk Holdings | 35.32 Bn | 35.31 Bn | 1.82 Bn | 25.05 Bn |
| 7 | Royalty Pharma | 33.72 Bn | 35.84 Bn | - | 445.06 Mn |
| 8 | Alnylam Pharmaceuticals | 30.58 Bn | 27.27 Bn | 992.69 Mn | 133.61 Mn |
| 9 | Insmed | 27.01 Bn | 25.85 Bn | 358.27 Mn | 217.35 Mn |
| 10 | Upstream Bio | 387.23 Mn | 387.23 Mn | -3.29 Mn | 54.57 Mn |
Historic Data
Download Data| Date | Value |
|---|---|
| Jun 30, 2026 | 54.57 Mn |
| Mar 31, 2026 | 54.33 Mn |
| Dec 31, 2025 | 53.85 Mn |
| Sep 30, 2025 | 53.93 Mn |
| Jun 30, 2025 | 53.77 Mn |
| Mar 31, 2025 | 53.62 Mn |
| Dec 31, 2024 | 13.68 Mn |
| Sep 30, 2024 | 3.02 Mn |
| Jun 30, 2024 | 3.01 Mn |
| Mar 31, 2024 | 3.00 Mn |
| Dec 31, 2023 | 2.95 Mn |
| Sep 30, 2023 | 2.96 Mn |