Upstream Bio, Inc.(UPB)
Biotechnology
Antibody Engineering (mAbs, bispecifics, ADCs)
| Filing Date | Insider | Type | 10b5-1 | Net Shares | Ownership change | Avg. Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-03-17 | GRAY MICHAEL CFO and COO | Sale | -852 | -2.79%29,648 | $9.29 | $7,915 | View SEC filing | |
| 2026-03-17 | Deykin Aaron Chief Medical Officer | Sale | -894 | -2.66%32,687 | $9.29 | $8,305 | View SEC filing | |
| 2026-03-17 | Sutherland Everett Rand Chief Executive Officer | Sale | -2,093 | -2.79%72,907 | $9.29 | $19,444 | View SEC filing | |
| 2026-03-17 | Ambrose Allison General Counsel | Sale | -475 | -2.79%16,525 | $9.29 | $4,413 | View SEC filing | |
| 2026-03-17 | Houghton Adam Chief Business Officer | Sale | -699 | -2.80%24,301 | $9.29 | $6,494 | View SEC filing | |
| 2024-10-17 | Blavatnik Len 10% Owner | Purchase | +1,175,000 | +100.00%1,175,000 | $17.00 | $19,975,000 | View SEC filing | |
| 2024-10-17 | Chimovits Erez Director, 10% Owner | Purchase | +825,000 | +367.78%4,554,873 | $17.00 | $14,025,000 | View SEC filing | |
| 2024-10-17 | ORBIMED ADVISORS LLC Director, 10% Owner | Purchase | +825,000 | +367.78%4,554,873 | $17.00 | $14,025,000 | View SEC filing |
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