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Ambrose Allison
InsiderCIK 0002047381
Largest Purchase
No open-market purchases in the recent filings.
Profile
- Filings
- 3
- Buy transactions
- 0
- Sell transactions
- 2
- Companies
- 1
- Active
- 2026
Across 3 filings between 2026, Ambrose Allison has disclosed $1.4M in transactions — all concentrated in Upstream Bio, Inc. (UPB). Their disclosed trades are heavily weighted toward selling — $0 in buys and $5.6K in sells. Data is sourced from official SEC Form 3, 4, and 5 filings.
Associated Companies
Trading History
3 loaded
| Sep 17 | UPB Upstream Bio, Inc. | Ambrose Allison | Insider | Sell | $2.7K |
| Jun 17 | UPB Upstream Bio, Inc. | Ambrose Allison | Insider | Sell | $2.9K |
| Jan 6 | UPB Upstream Bio, Inc. | Ambrose Allison | Insider | Grant | $1.4M |
3 filings