Insider Profile · SEC Form 4 Activity · Trailing 90 Days

Huang James

Over the trailing 90 days, Huang James (Other at Connect Biopharma Holdings Ltd) traded $3.5M of stock (net selling $2.8M) across 2 companies, per 2 SEC Form 4 transactions.

Role: Other
Companies: CNTB ATRA
Window: Trailing 90 days · 2 transactions · CIK 1573160
Net activity: −$2.8M ($372K bought · $3.2M sold)
Source: Official filings on sec.gov ↗

By Company (Trailing 90 Days)

Symbol	Company	Txns	Bought	Sold	Net
ATRA	Atara Biotherapeutics, Inc.	1	—	$3.2M	−$3.2M
CNTB	Connect Biopharma Holdings Ltd	1	$372K	—	$372K

Transactions (2)

Date	Symbol	Type	Shares	Value	Description
2026-05-29	CNTB	Buy	150.0K	$372K	Open market or private purchase
2026-05-07	ATRA	Sell	313.4K	$3.2M	Open market or private sale

Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.

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