Adam Houghton Insider Trades & Stock Holdings

Chief Business Officer · Upstream Bio, Inc. · Latest filing Jun 16, 2026

Adam Houghton, Chief Business Officer at Upstream Bio, Inc. has 1 Form 4 trade on file since Jun 16, 2026. Open-market activity: 0 purchases ($0) and 1 sale ($4.27K), net -$4.27K. Latest filing: disposed of 700 shares of $UPB on Jun 16, 2026 at $6.10.

Trades on file

1

Open-market bought

$0

Open-market sold

$4.27K

Net open-market

-$4.27K

Latest filing

Jun 16, 2026

All insider trades by Adam Houghton

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Jun 16, 2026	$UPB	Sell (Open-market sale)	700	$6.10	$4.27K			+6.8%	+22.1%		Chief Business Officer		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Adam Houghton traded

• $UPB

Frequently asked questions

Has Adam Houghton been buying or selling stock?

Adam Houghton has 0 open-market purchases and 1 open-market sale on file, net -$4.27K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Adam Houghton's latest insider trade?

disposed of 700 shares of $UPB on Jun 16, 2026 at $6.10.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.