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Nasdaq · CIK 0001704292

ZLAB Zai Lab Ltd

Insider trading from SEC Form 4. Last filing 7 d ago. Close $24.99 on Oct 9, 2026, +53% from the 52-week low and -24% from the high.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
10
with a Form 4 at this company

Price and insider trades, last year

ZLABOct 9, 2026 · close 24.99

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at Zai Lab Ltd, scored.

ScoreInsiderValueHoldingsPrice contextFiled
14WeakRichard Gaynor
director
buy
$33k
1,731 shares
+3%+17% from low-56% from high
22WeakRafael Amado
See Remarks
sell
$55k
2,957 shares
-6%+13% from low-57% from high
27WeakYajing Chen
Chief Financial Officer
sell
$32k
1,703 shares
-8%+13% from low-57% from high
20WeakFrazor Titus Edmondson III
Chief Legal Officer
sell
$24k
1,281 shares
-16%+13% from low-57% from high
5WeakYing Du
Chairperson & CEO
sell
$20k
1,067 shares
-0%+17% from low-56% from high
30WeakYing Du
Chairperson & CEO
sell
$1.9M
100,000 shares
-10%+20% from low-55% from high
30WeakYing Du
Chairperson & CEO
sell
$1.9M
100,000 shares
-10%+18% from low-55% from high
44ModerateFrazor Titus Edmondson III
Chief Legal Officer
sell
$297k
15,569 shares
-82%+18% from low-55% from high
26WeakRafael Amado
See Remarks
sell
$174k
10,000 shares
-19%+9% from low-59% from high
17WeakRafael Amado
See Remarks
sell
$188k
10,787 shares
-17%+4% from low-59% from high
16WeakFrazor Titus Edmondson III
Chief Legal Officer
sell
$148k
8,651 shares
-31%0% from low-60% from high
19WeakFrazor Titus Edmondson III
Chief Legal Officer
sell
$283k
14,328 shares
-34%0% from low-53% from high
7WeakYajing Chen
Chief Financial Officer
sell
$6,439
240 shares
-1%+10% from low-38% from high
7WeakYajing Chen
Chief Financial Officer
sell
$16k
456 shares
-3%+39% from low-21% from high
40ModerateJoshua L Smiley
See Remarks
buy
$289k
10,000 shares
+13%+40% from low-34% from high
23WeakFrazor Titus Edmondson III
Chief Legal Officer
sell
$68k
1,883 shares
-4%+75% from low-17% from high
28WeakJoshua L Smiley
See Remarks
sell
$241k
6,641 shares
-8%+75% from low-17% from high
9WeakYajing Chen
Chief Financial Officer
sell
$51k
1,438 shares
-8%+76% from low-17% from high
35WeakYing Du
Chairperson & CEO
sell
$3.4M
96,387 shares
-16%+69% from low-20% from high
20WeakRafael Amado
See Remarks
sell
$105k
3,000 shares
-7%+72% from low-19% from high
33WeakYajing Chen
Chief Financial Officer
sell
$139k
4,096 shares
-20%+72% from low-19% from high
35WeakYing Du
Chairperson & CEO
sell
$3.5M
100,000 shares
-17%+72% from low-19% from high
38WeakYing Du
Chairperson & CEO
sell
$249k
7,072 shares
-1%+74% from low-18% from high
38WeakYing Du
Chairperson & CEO
sell
$246k
6,918 shares
-1%+72% from low-19% from high
37WeakYajing Chen
Chief Financial Officer
sell
$97k
2,675 shares
-11%+78% from low-16% from high
48ModerateYing Du
Chairperson & CEO
sell
$855k
23,669 shares
-4%+78% from low-16% from high
32WeakFrazor Titus Edmondson III
Chief Legal Officer
sell
$212k
5,877 shares
-13%+78% from low-16% from high
38WeakWilliam Lis
director
sell
$493k
13,814 shares
-28%+70% from low-20% from high
26WeakYajing Chen
Chief Financial Officer
sell
$289k
9,618 shares
-36%+53% from low-19% from high
28WeakYing Du
Chairperson & CEO
sell
$2.7M
96,389 shares
-18%+41% from low-25% from high
28WeakYing Du
Chairperson & CEO
sell
$3.0M
100,000 shares
-19%+44% from low-24% from high
64NotableScott W Morrison
director
sell
$715k
23,799 shares
-50%+44% from low-24% from high
25WeakRafael Amado
See Remarks
sell
$100k
3,029 shares
-6%+56% from low-17% from high
27WeakYajing Chen
Chief Financial Officer
sell
$31k
924 shares
-3%+56% from low-17% from high
35WeakYing Du
Chairperson & CEO
sell
$98k
2,945 shares
-1%+56% from low-17% from high
22WeakFrazor Titus Edmondson III
Chief Legal Officer
sell
$62k
1,874 shares
-6%+56% from low-17% from high
25WeakJoshua L Smiley
See Remarks
sell
$111k
3,354 shares
-5%+56% from low-17% from high
33WeakRafael Amado
See Remarks
sell
$271k
7,541 shares
-15%+79% from low-5% from high
39WeakYajing Chen
Chief Financial Officer
sell
$190k
5,280 shares
-17%+79% from low-5% from high
37WeakYing Du
Chairperson & CEO
sell
$208k
5,808 shares
-1%+79% from low-5% from high
31WeakFrazor Titus Edmondson III
Chief Legal Officer
sell
$157k
4,369 shares
-14%+79% from low-5% from high
36WeakJoshua L Smiley
See Remarks
sell
$421k
11,740 shares
-16%+79% from low-5% from high
20WeakRafael Amado
See Remarks
sell
$115k
3,000 shares
-9%-
35WeakYing Du
Chairperson & CEO
sell
$3.3M
96,389 shares
-18%-
19WeakRichard Gaynor
director
sell
$88k
2,500 shares
-5%-
35WeakYing Du
Chairperson & CEO
sell
$3.3M
100,000 shares
-18%-
48ModerateFrazor Titus Edmondson III
Chief Legal Officer
sell
$480k
14,544 shares
-50%-
41ModerateKai-Xian Chen
director
sell
$133k
7,750 shares
-11%-
17WeakRafael Amado
See Remarks
sell
$199k
7,583 shares
-18%-
7WeakYajing Chen
Chief Financial Officer
sell
$5,121
167 shares
-1%-

Transactions

The last 100 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Oct 1, 2026Yajing Chen
Chief Financial Officer
MOption exercise
American Depositary Shares
+920--36,5557 d ago
Oct 1, 2026Yajing Chen
Chief Financial Officer
FTax withholding
American Depositary Shares
-315$25.50$8,03336,2407 d ago
Oct 1, 2026Yajing Chen
Chief Financial Officer
MOption exercise
Restricted Share Unitsderivative
-920$0.00$007 d ago
Mar 17, 2026Richard Gaynor
director
POpen-market purchase
American Depositary Shares10b5-1
+1,731$18.91$33k56,630Mar 19, 2026
Mar 12, 2026Rafael Amado
See Remarks
MOption exercise
American Depositary Shares
+5,323--47,714Mar 16, 2026
Mar 12, 2026Frazor Titus Edmondson III
Chief Legal Officer
MOption exercise
American Depositary Shares
+4,258--7,775Mar 16, 2026
Mar 12, 2026Yajing Chen
Chief Financial Officer
MOption exercise
American Depositary Shares
+4,258--21,702Mar 16, 2026
Mar 11, 2026Ying Du
Chairperson & CEO
AGrant or award
Stock Options (Right to Buy)derivative
+353,430$0.00$0353,430Mar 16, 2026
Mar 11, 2026Ying Du
Chairperson & CEO
AGrant or award
Restricted Share Unitsderivative
+32,419$0.00$032,419Mar 16, 2026
Mar 13, 2026Yajing Chen
Chief Financial Officer
SOpen-market sale
American Depositary Shares
-1,703$18.63$32k19,999Mar 16, 2026
Mar 13, 2026Frazor Titus Edmondson III
Chief Legal Officer
SOpen-market sale
American Depositary Shares
-1,281$18.63$24k6,494Mar 16, 2026
Mar 13, 2026Rafael Amado
See Remarks
SOpen-market sale
American Depositary Shares
-2,957$18.63$55k44,757Mar 16, 2026
Mar 4, 2026Rafael Amado
See Remarks
AGrant or award
Stock Options (Right to Buy)derivative
+103,950$0.00$0103,950Mar 16, 2026
Mar 4, 2026Frazor Titus Edmondson III
Chief Legal Officer
AGrant or award
Stock Options (Right to Buy)derivative
+83,160$0.00$083,160Mar 16, 2026
Mar 4, 2026Yajing Chen
Chief Financial Officer
AGrant or award
Stock Options (Right to Buy)derivative
+83,160$0.00$083,160Mar 16, 2026
Mar 4, 2026Rafael Amado
See Remarks
AGrant or award
Restricted Share Unitsderivative
+33,783$0.00$033,783Mar 16, 2026
Mar 4, 2026Frazor Titus Edmondson III
Chief Legal Officer
AGrant or award
Restricted Share Unitsderivative
+27,027$0.00$027,027Mar 16, 2026
Mar 4, 2026Yajing Chen
Chief Financial Officer
AGrant or award
Restricted Share Unitsderivative
+27,027$0.00$027,027Mar 16, 2026
Mar 12, 2026Rafael Amado
See Remarks
MOption exercise
Restricted Share Unitsderivative
-5,323$0.00$015,971Mar 16, 2026
Mar 12, 2026Yajing Chen
Chief Financial Officer
MOption exercise
Restricted Share Unitsderivative
-4,258$0.00$012,777Mar 16, 2026
Mar 12, 2026Frazor Titus Edmondson III
Chief Legal Officer
MOption exercise
Restricted Share Unitsderivative
-4,258$0.00$012,777Mar 16, 2026
Mar 10, 2026Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+261,092$1.74$454k1,225,253Mar 12, 2026
Mar 10, 2026Ying Du
Chairperson & CEO
FTax withholding
American Depositary Shares10b5-1
-116,936$19.41$2.3M1,108,317Mar 12, 2026
Mar 10, 2026Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+2,655--1,110,972Mar 12, 2026
Mar 11, 2026Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-1,067$19.08$20k1,109,905Mar 12, 2026
Mar 10, 2026Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-261,092$0.00$0461,092Mar 12, 2026
Mar 10, 2026Ying Du
Chairperson & CEO
MOption exercise
Restricted Share Unitsderivative10b5-1
-2,655$0.00$07,965Mar 12, 2026
Mar 6, 2026Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+50,000$1.74$87k1,014,161Mar 10, 2026
Mar 6, 2026Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-50,000$19.42$971k964,161Mar 10, 2026
Mar 9, 2026Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+50,000$1.74$87k1,014,161Mar 10, 2026
Mar 9, 2026Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-50,000$19.03$951k964,161Mar 10, 2026
Mar 6, 2026Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-50,000$0.00$0772,184Mar 10, 2026
Mar 9, 2026Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-50,000$0.00$0722,184Mar 10, 2026
Mar 4, 2026Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+50,000$1.74$87k1,014,161Mar 6, 2026
Mar 5, 2026Frazor Titus Edmondson III
Chief Legal Officer
SOpen-market sale
American Depositary Shares10b5-1
-15,569$19.06$297k3,517Mar 6, 2026
Mar 4, 2026Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-14,290$18.78$268k999,871Mar 6, 2026
Mar 4, 2026Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-35,710$19.32$690k964,161Mar 6, 2026
Mar 5, 2026Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+50,000$1.74$87k1,014,161Mar 6, 2026
Mar 5, 2026Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-50,000$19.22$961k964,161Mar 6, 2026
Mar 4, 2026Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-50,000$0.00$0872,184Mar 6, 2026
Mar 5, 2026Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-50,000$0.00$0822,184Mar 6, 2026
Mar 3, 2026Rafael Amado
See Remarks
SOpen-market sale
American Depositary Shares10b5-1
-10,000$17.38$174k42,391Mar 5, 2026
Dec 30, 2025Rafael Amado
See Remarks
MOption exercise
American Depositary Shares
+21,000--63,178Jan 2, 2026
Dec 31, 2025Rafael Amado
See Remarks
SOpen-market sale
American Depositary Shares
-10,787$17.43$188k52,391Jan 2, 2026
Dec 30, 2025Rafael Amado
See Remarks
MOption exercise
Restricted Share Unitsderivative
-21,000$0.00$042,000Jan 2, 2026
Dec 16, 2025Frazor Titus Edmondson III
Chief Legal Officer
SOpen-market sale
American Depositary Shares10b5-1
-8,651$17.14$148k19,086Dec 18, 2025
Dec 10, 2025Ying Du
Chairperson & CEO
GGift
American Depositary Shares
-303,378$0.00$0586,641Dec 12, 2025
Dec 11, 2025Ying Du
Chairperson & CEO
GGift
American Depositary Shares
+377,520$0.00$0964,161Dec 12, 2025
Nov 21, 2025Frazor Titus Edmondson III
Chief Legal Officer
SOpen-market sale
American Depositary Shares10b5-1
-14,328$19.78$283k27,737Nov 25, 2025
Oct 31, 2025Yajing Chen
Chief Financial Officer
MOption exercise
American Depositary Shares
+500--17,684Nov 4, 2025
Nov 3, 2025Yajing Chen
Chief Financial Officer
SOpen-market sale
American Depositary Shares
-240$26.83$6,43917,444Nov 4, 2025
Oct 31, 2025Yajing Chen
Chief Financial Officer
MOption exercise
Restricted Share Unitsderivative
-500$0.00$00Nov 4, 2025
Oct 1, 2025Yajing Chen
Chief Financial Officer
MOption exercise
American Depositary Shares
+920--17,640Oct 3, 2025
Oct 2, 2025Yajing Chen
Chief Financial Officer
SOpen-market sale
American Depositary Shares
-456$34.25$16k17,184Oct 3, 2025
Oct 1, 2025Yajing Chen
Chief Financial Officer
MOption exercise
Restricted Share Unitsderivative
-920$0.00$0920Oct 3, 2025
Sep 10, 2025Joshua L Smiley
See Remarks
POpen-market purchase
American Depositary Shares
+10,000$28.91$289k86,604Sep 12, 2025
Aug 29, 2025Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares
+604,376$1.20$725k1,141,338Sep 3, 2025
Aug 29, 2025Ying Du
Chairperson & CEO
FTax withholding
American Depositary Shares
-251,319$32.59$8.2M890,019Sep 3, 2025
Aug 29, 2025Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative
-604,376$0.00$00Sep 3, 2025
Aug 15, 2025Frazor Titus Edmondson III
Chief Legal Officer
MOption exercise
American Depositary Shares
+4,850--43,948Aug 19, 2025
Aug 15, 2025Joshua L Smiley
See Remarks
MOption exercise
American Depositary Shares
+15,900--83,245Aug 19, 2025
Aug 18, 2025Frazor Titus Edmondson III
Chief Legal Officer
SOpen-market sale
American Depositary Shares
-1,883$36.24$68k42,065Aug 19, 2025
Aug 18, 2025Joshua L Smiley
See Remarks
SOpen-market sale
American Depositary Shares
-6,641$36.24$241k76,604Aug 19, 2025
Aug 15, 2025Frazor Titus Edmondson III
Chief Legal Officer
MOption exercise
Restricted Share Unitsderivative
-4,850$0.00$00Aug 19, 2025
Aug 15, 2025Joshua L Smiley
See Remarks
MOption exercise
Restricted Share Unitsderivative
-15,900$0.00$031,800Aug 19, 2025
Aug 14, 2025Yajing Chen
Chief Financial Officer
MOption exercise
American Depositary Shares10b5-1
+1,250--18,158Aug 18, 2025
Aug 15, 2025Yajing Chen
Chief Financial Officer
SOpen-market sale
American Depositary Shares10b5-1
-610$35.27$22k17,548Aug 18, 2025
Aug 15, 2025Yajing Chen
Chief Financial Officer
SOpen-market sale
American Depositary Shares10b5-1
-828$35.53$29k16,720Aug 18, 2025
Aug 14, 2025Yajing Chen
Chief Financial Officer
MOption exercise
Restricted Share Unitsderivative10b5-1
-1,250$0.00$02,500Aug 18, 2025
Aug 12, 2025Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+50,000$0.60$30k586,962Aug 14, 2025
Aug 12, 2025Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-50,000$34.25$1.7M536,962Aug 14, 2025
Aug 13, 2025Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+46,387$0.60$28k583,349Aug 14, 2025
Aug 13, 2025Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-46,387$35.47$1.6M536,962Aug 14, 2025
Aug 12, 2025Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-50,000$0.00$046,387Aug 14, 2025
Aug 13, 2025Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-46,387$0.00$00Aug 14, 2025
Aug 8, 2025Rafael Amado
See Remarks
SOpen-market sale
American Depositary Shares10b5-1
-3,000$35.00$105k42,178Aug 12, 2025
Aug 8, 2025Yajing Chen
Chief Financial Officer
SOpen-market sale
American Depositary Shares10b5-1
-4,096$34.01$139k16,908Aug 12, 2025
Aug 8, 2025Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+50,000$0.60$30k586,962Aug 12, 2025
Aug 8, 2025Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-50,000$34.74$1.7M536,962Aug 12, 2025
Aug 11, 2025Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares10b5-1
+50,000$0.60$30k586,962Aug 12, 2025
Aug 11, 2025Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares10b5-1
-50,000$34.64$1.7M536,962Aug 12, 2025
Aug 8, 2025Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-50,000$0.00$0146,387Aug 12, 2025
Aug 11, 2025Ying Du
Chairperson & CEO
MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-50,000$0.00$096,387Aug 12, 2025
Jul 2, 2025Ying Du
Chairperson & CEO
AGrant or award
Restricted Share Unitsderivative
+44,194$0.00$044,194Jul 7, 2025
Jul 1, 2025Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares
+18,000--544,034Jul 3, 2025
Jul 2, 2025Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares
-7,072$35.23$249k536,962Jul 3, 2025
Jul 1, 2025Ying Du
Chairperson & CEO
MOption exercise
Restricted Share Unitsderivative
-18,000$0.00$054,000Jul 3, 2025
Jun 27, 2025Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares
+17,970--532,952Jul 1, 2025
Jun 30, 2025Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares
-6,918$35.52$246k526,034Jul 1, 2025
Jun 27, 2025Ying Du
Chairperson & CEO
MOption exercise
Restricted Share Unitsderivative
-17,970$0.00$035,940Jul 1, 2025
Jun 25, 2025Yajing Chen
Chief Financial Officer
MOption exercise
American Depositary Shares
+6,250--23,679Jun 27, 2025
Jun 25, 2025Ying Du
Chairperson & CEO
MOption exercise
American Depositary Shares
+58,800--538,651Jun 27, 2025
Jun 25, 2025Frazor Titus Edmondson III
Chief Legal Officer
MOption exercise
American Depositary Shares
+14,600--44,975Jun 27, 2025
Jun 26, 2025Yajing Chen
Chief Financial Officer
SOpen-market sale
American Depositary Shares
-2,675$36.13$97k21,004Jun 27, 2025
Jun 26, 2025Ying Du
Chairperson & CEO
SOpen-market sale
American Depositary Shares
-23,669$36.13$855k514,982Jun 27, 2025
Jun 26, 2025Frazor Titus Edmondson III
Chief Legal Officer
SOpen-market sale
American Depositary Shares
-5,877$36.13$212k39,098Jun 27, 2025
Jun 25, 2025Yajing Chen
Chief Financial Officer
MOption exercise
Restricted Share Unitsderivative
-6,250$0.00$06,250Jun 27, 2025
Jun 25, 2025Ying Du
Chairperson & CEO
MOption exercise
Restricted Share Unitsderivative
-58,800$0.00$058,800Jun 27, 2025
Jun 25, 2025Frazor Titus Edmondson III
Chief Legal Officer
MOption exercise
Restricted Share Unitsderivative
-14,600$0.00$014,600Jun 27, 2025
Jun 18, 2025John D Diekman
director
AGrant or award
American Depositary Shares
+10,831$0.00$099,769Jun 23, 2025

Insiders

Everyone who has filed a Form 4 here.

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.

ZLAB insider trading: Zai Lab Ltd | InsiderTell