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Adam Houghton sold $4K of UPB stock
Adam Houghton, Chief Business Officer of Upstream Bio, Inc. (UPB), sold 700 shares of UPB stock worth $4K, 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 -39.4% since the trade date, from $5.33 to $3.23 (Nov 6, 2026 close).
- Traded
- Sep 16, 2026
- Disclosed
- Sep 17, 2026
- Filing delay
- 1 day
- Price since
- -39.4%
- Role
- Chief Business Officer
- Source
- SEC Form 4