Yajing Chen sold $16k of ZLAB
Chief Financial Officer at Zai Lab Ltd. 456 shares at an average of $34.25, traded Oct 2, 2025, filed Oct 3, 2025.
Score components
- +22RoleCFO
- 0Trade size$16k at market
- 0Share of holdings soldSold 2.6% of holdings
- 0ClusterNo other insider selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
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 -22.6%, 3m -48.7%, 6m -39.5%.
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 0000905148-25-003502, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Oct 1, 2025 | MOption exercise American Depositary Shares | +920 | - | - | 17,640 | Oct 3, 2025 |
| Oct 2, 2025 | SOpen-market sale American Depositary Shares | -456 | $34.25 | $16k | 17,184 | Oct 3, 2025 |
| Oct 1, 2025 | MOption exercise Restricted Share Unitsderivative | -920 | $0.00 | $0 | 920 | Oct 3, 2025 |
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.