4
Changes in Ownership
Upstream Bio, Inc. Filed Acc 0000950170-25-085372
Options or other derivatives
- Director acquired 17,096 shares (grant or award)
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| Derivatives | |||||||
| Fleming Harold Edward Director | 2025-06-10 | Grant or award · Stock Option (Right to Buy) | +17,096 | 17,096 | D | ||
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