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 |
|---|---|---|---|---|---|
| Aaron Deykin | Med | 2026-09-16 | 895 | $5.49 | $4.91kSell |
| Adam Houghton | CXO | 2026-09-16 | 700 | $5.49 | $3.84kSell |
| Michael Gray | CFO;COO | 2026-09-16 | 853 | $5.49 | $4.68kSell |
| Everett Rand Sutherland | CEO | 2026-09-16 | 2,095 | $5.49 | $11.50kSell |
| Allison Ambrose | CLO | 2026-09-16 | 485 | $5.49 | $2.66kSell |
| Michael Gray | CFO and COO | 2026-06-16 | 853 | $6.10 | $5.20kSell |
| Allison Ambrose | General Counsel | 2026-06-16 | 477 | $6.10 | $2.91kSell |
| Aaron Deykin | Chief Medical Officer | 2026-06-16 | 895 | $6.10 | $5.46kSell |
| Adam Houghton | Chief Business Officer | 2026-06-16 | 700 | $6.10 | $4.27kSell |
| Everett Rand Sutherland | Chief Executive Officer | 2026-06-16 | 2,095 | $6.10 | $12.78kSell |
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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 |
|---|---|---|---|---|
| Erez Chimovits | 10.61% | 5,813,673 | $31.16M | Insider |
| Orbimed Advisors LLC | 10.61% | 5,813,673 | $31.16M | Insider |
| Ai Upstream LLC | 10.03% | 5,494,410 | $29.45M | Insider |
| Wellington Biomedical Innovation Master Investors Cayman II LP | 1.63% | 894,733 | $4.80M | Insider |
| Everett Rand Sutherland | 0.13% | 68,717 | $368.32k | Insider |
| Aaron Deykin | 0.06% | 32,302 | $173.14k | Insider |
| Michael Gray | 0.05% | 27,942 | $149.77k | Insider |
| Adam Houghton | 0.04% | 22,901 | $122.75k | Insider |
| Allison Ambrose | 0.03% | 15,563 | $83.42k | Insider |
| Fidlty | 0.01% | 8,163 | $43.75k | Institution |
UPB vs Biotech Stocks
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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.