Chen Bihua
SEC Form 4 insider trading activity
Chen Bihua has filed 5 SEC Form 4 filings (15 transaction rows) across 3 companies, including BLSM, BBOT, HLXC, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: Aug 10, 2026.
On the most recent filing, Chen Bihua is listed as Director, 10% Owner at BlossomHill Therapeutics, Inc. Inside the rolling window, Chen Bihua reported 2 open-market purchases totaling $13.0M in BLSM and HLXC and no open-market sales. The largest disclosed transaction in the window is a purchase of 800,000 HLXC shares on Jan 26, 2026, worth $8.0M.
Companies traded
Other insiders at BLSM
Insider Buying
$13.0M
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
3
in the rolling window
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Sep 30, 2025 | MLTX | Sale | $41K |
| Sep 29, 2025 | MLTX | Sale | $18.5M |
| Sep 29, 2025 | MLTX | Sale | $25.7M |
| Sep 29, 2025 | MLTX | Sale | $2.0M |
| Sep 29, 2025 | MLTX | Sale | $664K |
Frequently asked questions
How many SEC Form 4 filings has Chen Bihua made?
Chen Bihua has filed 5 SEC Form 4 filings (15 transaction rows) across 3 companies, including BLSM, BBOT, HLXC since 2025.
Which companies does Chen Bihua trade?
Chen Bihua has filed SEC Form 4 disclosures for 3 companies, including BLSM, BBOT, HLXC.
When was Chen Bihua's most recent SEC Form 4 filing?
Chen Bihua's most recent SEC Form 4 filing on Tracefour is dated Aug 10, 2026.
What is Chen Bihua's total buy and sell value in the current window?
Inside the rolling retention window, Chen Bihua bought $13.0M and sold $0 based on SEC Form 4 filings.
What was Chen Bihua's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 800,000 HLXC shares on 2026-01-26, worth $8.0M, per SEC Form 4 filings.