Form 4 Tracker
Bihua Chen

Director, 10% Owner; Director, Chairperson and CEO, 10% Owner; Other · 6 filings · Latest: Aug 6, 2026

BlossomHill Therapeutics, Inc.
BridgeBio Oncology Therapeutics, Inc.
BRIGHT MINDS BIOSCIENCES INC.
Helix Acquisition Corp. III
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
BLSM
Bihua ChenDirector, 10% OwnerAug 10, 2026
Purchase
$16.00312,500$5.0M3,614,034
DRUG
Bihua ChenOtherApr 28, 2026
Sale
$89.50109,331$9.8M950,000
HLXC
Bihua ChenDirector, Chairperson and CEO, 10% OwnerJan 26, 2026
Purchase
$10.00800,000$8.0M800,000