Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-06-16 Sale | 2026-06-17 4:05 pm | Upstream Bio Inc. | UPB | Ambrose Allison General Counsel | 477 | $6.1 | $2,910 | 16,048 (Direct) | View |
| 2026-03-16 Sale | 2026-03-17 5:00 pm | Upstream Bio Inc. | UPB | Ambrose Allison General Counsel | 475 | $9.29 | $4,413 | 16,525 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-01-02 Option Award | 2026-01-06 5:15 pm | N/A 2036-01-01 | Upstream Bio Inc. | UPB | Ambrose Allison General Counsel | 68,000 | $0 | 68,000 (Direct) | View |
| 2025-02-06 Option Award | 2025-02-07 5:25 pm | N/A 2035-02-05 | Upstream Bio Inc. | UPB | Ambrose Allison General Counsel | 25,000 | $0 | 25,000 (Direct) | View |
| 2024-12-16 Option Award | 2024-12-17 4:18 pm | N/A 2034-12-15 | Upstream Bio Inc. | UPB | Ambrose Allison General Counsel | 100,000 | $0 | 100,000 (Direct) | View |