Joshua L. Smiley

This profile gathers the share dealings of Joshua L. Smiley in Zai Lab Ltd. We count 16 filings; the first trade dates from 15 August 2023 and the latest from 6 April 2026.

The open-market side counts 5 purchases for €598k alongside 2 sales for €223k. On balance, insiders were net buyers of €375k. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. The rest of the record consists of 9 option exercises. So far in 2026, the count stands at no purchases and 2 sales.

In size, the median ticket on the buying side is €110k. Across 5 purchases, this insider has always bought alone, with no colleague buying within 30 days. Looking at 5 purchases old enough to measure, the stock rose over the following 90 days in 0% of cases; the median change was -27.9%. Past outcomes like these are no guarantee of what comes next.

On 8 April 2026 came the latest disclosure, an open-market sale for €53k in Zai Lab Ltd. The most recent open-market purchase was published on 12 September 2025, 407 days ago. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. Section 16 rules allow two business days to file each Form 4. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.