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sellModerate cluster of 4

Ying Du sold $855k of ZLAB

Chairperson & CEO at Zai Lab Ltd. 23,669 shares at an average of $36.13, traded Jun 26, 2025, filed Jun 27, 2025.

Warning score
48
Value
$855k
23,669 shares
Holdings after
514,982
-4% from before
From 52-week low
+78%
low $20.34, close $36.19
From 52-week high
-16%
high $43.03, as of Jun 26, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $855k at market
    +23
  • Share of holdings sold
    Sold 4.4% of holdings
    0
  • Cluster
    4 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

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 +7.0%, 3m -9.0%, 6m -47.2%.

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.

ZLABOct 12, 2026 · close 24.59
Since filing Jun 27, 2025: -29.2%SPY +28.3% · excess -57.5%

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 0000905148-25-002263, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 25, 2025MOption exercise
American Depositary Shares
+58,800--538,651Jun 27, 2025
Jun 26, 2025SOpen-market sale
American Depositary Shares
-23,669$36.13$855k514,982Jun 27, 2025
Jun 25, 2025MOption exercise
Restricted Share Unitsderivative
-58,800$0.00$058,800Jun 27, 2025

Related signals

Other insiders at Zai Lab Ltd and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
10Weak
ZLABsell 210b5-1
Zai Lab Ltd
Yajing Chen
Chief Financial Officer
$7,020
260 shares
-1%
10Weak
ZLABsell 210b5-1
Zai Lab Ltd
Yajing Chen
Chief Financial Officer
$15k
619 shares
-2%
20Weak
ZLABsell 210b5-1
Zai Lab Ltd
William Lis
director
$213k
8,506 shares
-17%
14Weak
ZLABbuy10b5-1
Zai Lab Ltd
Richard Gaynor
director
$33k
1,736 shares
+2%
36Weak
ZLABsell 4
Zai Lab Ltd
Ying Du
Chairperson & CEO
$130k
7,026 shares
-1%
28Weak
ZLABsell 4
Zai Lab Ltd
Yajing Chen
Chief Financial Officer
$40k
2,264 shares
-6%
42Moderate
ZLABsell 4
Zai Lab Ltd
Ying Du
Chairperson & CEO
$429k
24,543 shares
-2%
28Weak
ZLABsell 4
Zai Lab Ltd
Frazor Titus Edmondson III
Chief Legal Officer
$72k
4,103 shares
-12%
26Weak
ZLABsell 410b5-1
Zai Lab Ltd
William Lis
director
$127k
7,040 shares
-12%
23Weak
ZLABsell 210b5-1
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.

Ying Du sold $855k of ZLAB | InsiderTell