Yajing Chen

Yajing Chen is a declared insider of Zai Lab Ltd (finance chief), with filings sourced from SEC (Form 4). Between 29 September 2023 and 1 October 2026, the trades on record add up to 30 filings.

The open-market record consists of 7 sales worth €498k, with no purchase. The totals exclude 1 filing filed without an amount. Other entries cover 2 share grants and 21 option exercises. Since January 2026: no purchases and 5 sales on the market.

Most recently, on 5 October 2026, the filings show an option exercise in Zai Lab Ltd. Typically, a trade is published a median of 2 days after it takes place. The legal deadline for a Form 4 is two business days after the transaction. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.