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Insider selling
Allison Ambrose sold $3K of Upstream Bio, Inc. (UPB) stock
Allison Ambrose, General Counsel of Upstream Bio, Inc. (UPB), sold 485 shares of UPB stock worth $3K, per an SEC Form 4 filed Sep 17, 2026.
It was an open-market sale.
The trade happened on Sep 16, 2026, 1 day before it was made public.
UPB has moved +3.0% since the trade date, from $5.33 to $5.49 (Sep 22, 2026 close).
- Traded
- Sep 16, 2026
- Disclosed
- Sep 17, 2026
- Filing delay
- 1 day
- Price since
- +3.0%
- Role
- General Counsel
- Source
- SEC Form 4
More UPB insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.