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buyWeak10b5-1 plan

Richard Gaynor bought $33k of ZLAB

director at Zai Lab Ltd. 1,736 shares at an average of $19.05, traded Jul 1, 2026, filed Jul 6, 2026.

Conviction score
14
Value
$33k
1,736 shares
Holdings after
80,737
+2% from before
From 52-week low
+17%
low $16.30, close $19.15
From 52-week high
-53%
high $40.51, as of Jul 1, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $33k at market
    +6
  • Relative to holdings
    Holdings up 2.2%
    0
  • Price context
    53% below the 52-week high
    +8
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -15

What happened after comparable buys

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.

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 Jul 6, 2026: +28.9%SPY +3.8% · excess +25.1%

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 0000905148-26-003169, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 1, 2026POpen-market purchase
American Depositary Shares10b5-1
+1,736$19.05$33k80,737Jul 6, 2026

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%
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%
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.