UPB
Upstream Bio, Inc. · 13 Form 4 · free tier: 48h delay
Recent Form 4 slice from EDGAR — up to 30 filings (not a full archive).
For informational purposes only. Not investment advice. Data is aggregated from public SEC and congressional disclosures. Nothing on this site is a recommendation to buy or sell any security. Public disclosure of a trade is not evidence of wrongdoing or insider trading.
Recent Form 4 trades
Open-market purchases and sales
UPB · Trade · Sep 16, 2026 · Filed · Sep 17, 2026 · Upstream Bio, Inc.
$2,663
485 sh
UPB · Trade · Sep 16, 2026 · Filed · Sep 17, 2026 · Upstream Bio, Inc.
$4,914
895 sh
UPB · Trade · Sep 16, 2026 · Filed · Sep 17, 2026 · Upstream Bio, Inc.
$4,683
853 sh
UPB · Trade · Sep 16, 2026 · Filed · Sep 17, 2026 · Upstream Bio, Inc.
$3,843
700 sh
UPB · Trade · Sep 16, 2026 · Filed · Sep 17, 2026 · Upstream Bio, Inc.
$11,502
2,095 sh
UPB · Trade · Jun 16, 2026 · Filed · Jun 17, 2026 · Upstream Bio, Inc.
$2,910
477 sh
UPB · Trade · Jun 16, 2026 · Filed · Jun 17, 2026 · Upstream Bio, Inc.
$5,460
895 sh
UPB · Trade · Jun 16, 2026 · Filed · Jun 17, 2026 · Upstream Bio, Inc.
$5,203
853 sh
UPB · Trade · Jun 16, 2026 · Filed · Jun 17, 2026 · Upstream Bio, Inc.
$4,270
700 sh
UPB · Trade · Jun 16, 2026 · Filed · Jun 17, 2026 · Upstream Bio, Inc.
$12,780
2,095 sh
UPB · Trade · Mar 16, 2026 · Filed · Mar 17, 2026 · Upstream Bio, Inc.
$8,305
894 sh
UPB · Trade · Mar 16, 2026 · Filed · Mar 17, 2026 · Upstream Bio, Inc.
$7,915
852 sh
UPB · Trade · Mar 16, 2026 · Filed · Mar 17, 2026 · Upstream Bio, Inc.
$19,444
2,093 sh