Allison Ambrose's most recent trade in Upstream Bio Inc. was a trade of 485 Common Stock done at an average price of $5.5 . Disclosure was reported to the exchange on Sept. 16, 2026.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Upstream Bio Inc | Allison Ambrose | General Counsel | Sale of securities on an exchange or to another person at price $ 5.49 per share. | 16 Sep 2026 | 485 | 15,563 | - | 5.5 | 2,663 | Common Stock |
| Upstream Bio Inc | Allison Ambrose | General Counsel | Sale of securities on an exchange or to another person at price $ 6.10 per share. | 16 Jun 2026 | 477 | 16,048 | - | 6.1 | 2,910 | Common Stock |
| Upstream Bio Inc | Allison Ambrose | General Counsel | Sale of securities on an exchange or to another person at price $ 9.29 per share. | 16 Mar 2026 | 475 | 16,525 | - | 9.3 | 4,413 | Common Stock |
| Upstream Bio Inc | Allison Ambrose | General Counsel | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 02 Jan 2026 | 51,000 | 51,000 | - | - | Stock Option (Right to Buy) | |
| Upstream Bio Inc | Allison Ambrose | General Counsel | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 02 Jan 2026 | 17,000 | 17,000 | - | 0 | Common Stock | |
| Upstream Bio Inc | Allison Ambrose | General Counsel | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 06 Feb 2025 | 25,000 | 25,000 | - | - | Stock Option (Right to Buy) | |
| Upstream Bio Inc | Allison Ambrose | General Counsel | 16 Dec 2024 | 100,000 | 100,000 | - | - | Stock Option (Right to Buy) |