Ying Du sold $2.0M of ZLAB
Chairperson & CEO at Zai Lab Ltd. 100,000 shares at an average of $19.87, traded May 15, 2026, filed May 19, 2026.
Score components
- +25RoleCEO
- +25Trade size$2.0M at market
- 0Share of holdings soldSold 8.5% of holdings
- +8Cluster2 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -1.0%, 3m +39.2%, 6m -.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0000905148-26-002524, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 15, 2026 | MOption exercise American Depositary Shares10b5-1 | +50,000 | $1.74 | $87k | 1,172,626 | May 19, 2026 |
| May 15, 2026 | SOpen-market sale American Depositary Shares10b5-1 | -50,000 | $20.74 | $1.0M | 1,122,626 | May 19, 2026 |
| May 18, 2026 | MOption exercise American Depositary Shares10b5-1 | +50,000 | $1.74 | $87k | 1,172,626 | May 19, 2026 |
| May 18, 2026 | SOpen-market sale American Depositary Shares10b5-1 | -50,000 | $19.00 | $950k | 1,122,626 | May 19, 2026 |
| May 15, 2026 | MOption exercise Stock Options (Right to Buy)derivative10b5-1 | -50,000 | $0.00 | $0 | 311,092 | May 19, 2026 |
| May 18, 2026 | MOption exercise Stock Options (Right to Buy)derivative10b5-1 | -50,000 | $0.00 | $0 | 261,092 | May 19, 2026 |
Related signals
Other insiders at Zai Lab Ltd and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 10Weak | Zai Lab Ltd | Yajing Chen Chief Financial Officer | $7,020 260 shares | -1% | |
| 10Weak | Zai Lab Ltd | Yajing Chen Chief Financial Officer | $15k 619 shares | -2% | |
| 20Weak | Zai Lab Ltd | William Lis director | $213k 8,506 shares | -17% | |
| 14Weak | Zai Lab Ltd | Richard Gaynor director | $33k 1,736 shares | +2% | |
| 36Weak | Zai Lab Ltd | Ying Du Chairperson & CEO | $130k 7,026 shares | -1% | |
| 28Weak | Zai Lab Ltd | Yajing Chen Chief Financial Officer | $40k 2,264 shares | -6% | |
| 42Moderate | Zai Lab Ltd | Ying Du Chairperson & CEO | $429k 24,543 shares | -2% | |
| 28Weak | Zai Lab Ltd | Frazor Titus Edmondson III Chief Legal Officer | $72k 4,103 shares | -12% | |
| 26Weak | Zai Lab Ltd | William Lis director | $127k 7,040 shares | -12% | |
| 23Weak | Zai Lab Ltd | Ying Du Chairperson & CEO | $2.0M 100,000 shares | -9% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.