NASDAQ: UPBUpstream Bio Inc Stock Ownership - Who owns Upstream Bio?
Insider buying vs selling
Have Upstream Bio Inc insiders been buying or selling?
Buy
Sell
| Name | Role | Date | Shares | Price | Value |
|---|---|---|---|---|---|
| Allison Ambrose | General Counsel | 2026-03-16 | 475 | $9.29 | $4.41kSell |
| Aaron Deykin | Chief Medical Officer | 2026-03-16 | 894 | $9.29 | $8.31kSell |
| Michael Gray | CFO and COO | 2026-03-16 | 852 | $9.29 | $7.92kSell |
| Adam Houghton | Chief Business Officer | 2026-03-16 | 699 | $9.29 | $6.49kSell |
| Everett Rand Sutherland | Chief Executive Officer | 2026-03-16 | 2,093 | $9.29 | $19.44kSell |
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Net Insider Buy/Sell (L12M) Ownership
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UPB Shareholders
What type of owners hold Upstream Bio Inc stock?
Institutional
Insider
Retail
| Name | Hold | Shares | Value | Type |
|---|---|---|---|---|
| Fmr LLC | 14.89% | 8,101,563 | $49.42M | Institution |
| Orbimed Advisors LLC | 10.68% | 5,813,673 | $35.46M | Insider |
| Erez Chimovits | 10.68% | 5,813,673 | $35.46M | Insider |
| Orbimed Advisors LLC | 10.46% | 5,693,589 | $34.73M | Institution |
| Ai Upstream LLC | 10.10% | 5,494,410 | $33.52M | Insider |
| Blackrock Inc | 6.19% | 3,370,689 | $20.56M | Institution |
| Decheng Capital LLC | 5.01% | 2,724,868 | $16.62M | Institution |
| Enavate Sciences GP LLC | 4.52% | 2,459,703 | $15.00M | Institution |
| Vanguard Capital Management LLC | 3.44% | 1,873,574 | $11.43M | Institution |
| Yintercept Hong Kong Ltd | 1.84% | 1,000,631 | $6.10M | Institution |
UPB vs Biotech Stocks
Upstream Bio Stock Ownership FAQ
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Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.