Houghton Adam Insider Trading -- Recent SEC Form 4 Transactions

Houghton Adam (CIK 2031691) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-17). Recent activity: Sell UPB (700 shares), Sell UPB (699 shares), Buy UPB (25,000 shares). Source: SEC Form 4.

DateCompanyRoleTypeSharesValue
2026-06-17Upstream Bio, Inc. (UPB)Chief Business OfficerSell700$4,270
2026-03-17Upstream Bio, Inc. (UPB)Chief Business OfficerSell699$6,494
2026-01-06Upstream Bio, Inc. (UPB)Chief Business OfficerBuy25,000$0

Source: SEC Form 4 filings · as of 2026-06-17