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Zai Lab Ltd

ZLAB Net selling
CIK 0001704292 #1762 in the set updated 17 Sep 2026
Bought (120 mo)
$1.02M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$176.05M
$4.34M on a plan · $102.18M straight out of an exercise
Sold at will
$69.53M
165 of 317 sales
Net
−$175.02M
−$68.51M against sales at will

By person

19 insiders · 351 transactions
66.2×

Samantha (Ying) Du holds 66.2 times base salary in stock. $60.22M of shares against $908.73K in salary for 2025.

Salary from the company's own proxy. The shares are what Samantha (Ying) Du last reported holding, valued at $27.00, the price American Depositary Shares was last bought or sold at on the open market here, on 19 Aug 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Du Ying
Chairperson & CEO
—
$133.86M (156) scheduled
−$133.86M
2,230,529
0.1987%
$60.22M
+2.5%
Reinhart Harald
See Remarks
—
$16.40M (34) scheduled
−$16.40M
86,716
0.0077%
$2.34M
+259.9%
Fu Tao
President & COO
—
$12.46M (40) scheduled
−$12.46M
372,668
0.0332%
$10.06M
−7.4%
Edmondson Frazor Titus III
Chief Legal Officer
—
$2.99M (22) scheduled
−$2.99M
53,415
0.0048%
$1.44M
+92.7%
Amado Rafael
See Remarks
—
$2.10M (14)
−$2.10M
57,022
0.0051%
$1.54M
—
Lis William
Director
—
$1.82M (8) scheduled
−$1.82M
76,045
0.0068%
$2.05M
+43.0%
Cho William Ki Chul
Chief Financial Officer
—
$1.80M (2)
−$1.80M
103,747
0.0092%
$2.80M
−5.7%
Chen Yajing
Chief Financial Officer
—
$1.12M (22) scheduled
−$1.12M
35,635
0.0032%
$962.15K
+490.6%
Chen Kai-Xian
Director
—
$746.62K (2)
−$746.62K
71,950
0.0064%
$1.94M
+28.2%
Morrison Scott W
Director
—
$715.09K (1)
−$715.09K
64,249
0.0057%
$1.73M
+774.7%
Smiley Joshua L
See Remarks
$670.04K (5)
$1.17M (8)
−$501.11K
117,602
0.0105%
$3.18M
—
DIEKMAN JOHN D
Director
—
$444.94K (4)
−$444.94K
189,755
0.0169%
$5.12M
+74.4%
GAYNOR RICHARD
Director
$65.80K (2)
$136.43K (2) scheduled
−$70.62K
89,649
0.0080%
$2.42M
+905.9%
WIRTH PETER
Director
$285.44K (1)
$277.57K (2)
+$7.87K
766,736
0.0683%
$20.70M
+11.8%
Leung Nisa
Director
—
—
—
8,082,324
0.7201%
$218.22M
−11.5%
MOULDER LEON O JR
Director
—
—
—
116,588
0.0104%
$3.15M
+268.8%
Liang Yi
CCO & President, Greater China
—
—
—
104,847
0.0093%
$2.83M
+0.7%
Vounatsos Michel
Director
—
—
—
72,787
0.0065%
$1.97M
—
Sandler Alan B.
Head of Global Dev., Oncology
—
—
—
56,910
0.0051%
$1.54M
−1.8%

Individual transactions

104
Insider
Date
Role
Action
Shares
Price
Amount
Du Ying
30 Jun 2026
Chairperson & CEO
Sell
7,026
$18.53
$130.22K
Chen Yajing
26 Jun 2026
Chief Financial Officer
Sell
2,264
$17.46
$39.53K
Du Ying
26 Jun 2026
Chairperson & CEO
Sell
24,543
$17.46
$428.55K
Edmondson Frazor Titus III
26 Jun 2026
Chief Legal Officer
Sell
4,103
$17.46
$71.64K
Amado Rafael
6 Apr 2026
See Remarks
Sell
2,739
$20.45
$56.01K
Chen Yajing
6 Apr 2026
Chief Financial Officer
Sell
853
$20.45
$17.44K
Du Ying
6 Apr 2026
Chairperson & CEO
Sell
2,653
$20.45
$54.25K
Edmondson Frazor Titus III
6 Apr 2026
Chief Legal Officer
Sell
1,224
$20.45
$25.03K
Smiley Joshua L
6 Apr 2026
See Remarks
Sell
3,017
$20.45
$61.69K
Amado Rafael
13 Mar 2026
See Remarks
Sell
2,957
$18.63
$55.08K
Chen Yajing
13 Mar 2026
Chief Financial Officer
Sell
1,703
$18.63
$31.72K
Edmondson Frazor Titus III
13 Mar 2026
Chief Legal Officer
Sell
1,281
$18.63
$23.86K
Smiley Joshua L
13 Mar 2026
See Remarks
Sell
1,966
$18.63
$36.62K
Amado Rafael
31 Dec 2025
See Remarks
Sell
10,787
$17.43
$188.04K
Chen Yajing
3 Nov 2025
Chief Financial Officer
Sell
240
$26.83
$6.44K
Chen Yajing
2 Oct 2025
Chief Financial Officer
Sell
456
$34.25
$15.62K
Edmondson Frazor Titus III
18 Aug 2025
Chief Legal Officer
Sell
1,883
$36.24
$68.23K
Smiley Joshua L
18 Aug 2025
See Remarks
Sell
6,641
$36.24
$240.64K
Du Ying
2 Jul 2025
Chairperson & CEO
Sell
7,072
$35.23
$249.15K
Du Ying
30 Jun 2025
Chairperson & CEO
Sell
6,918
$35.52
$245.73K
Chen Yajing
26 Jun 2025
Chief Financial Officer
Sell
2,675
$36.13
$96.65K
Du Ying
26 Jun 2025
Chairperson & CEO
Sell
23,669
$36.13
$855.21K
Edmondson Frazor Titus III
26 Jun 2025
Chief Legal Officer
Sell
5,877
$36.13
$212.35K
Morrison Scott W
9 May 2025
Director
Sell
23,799
$30.05
$715.09K
Amado Rafael
4 Apr 2025
See Remarks
Sell
3,029
$33.11
$100.28K
Chen Yajing
4 Apr 2025
Chief Financial Officer
Sell
924
$33.11
$30.59K
Du Ying
4 Apr 2025
Chairperson & CEO
Sell
2,945
$33.11
$97.50K
Edmondson Frazor Titus III
4 Apr 2025
Chief Legal Officer
Sell
1,874
$33.11
$62.04K
Smiley Joshua L
4 Apr 2025
See Remarks
Sell
3,354
$33.11
$111.04K
Smiley Joshua L
2 Apr 2025
See Remarks
Sell
11,740
$35.89
$421.40K
Amado Rafael
2 Apr 2025
See Remarks
Sell
7,541
$35.89
$270.68K
Chen Yajing
2 Apr 2025
Chief Financial Officer
Sell
5,280
$35.89
$189.52K
Du Ying
2 Apr 2025
Chairperson & CEO
Sell
5,808
$35.89
$208.47K
Edmondson Frazor Titus III
2 Apr 2025
Chief Legal Officer
Sell
4,369
$35.89
$156.82K
Amado Rafael
31 Dec 2024
See Remarks
Sell
7,583
$26.28
$199.29K
Chen Yajing
4 Nov 2024
Chief Financial Officer
Sell
167
$30.66
$5.12K
Chen Yajing
2 Oct 2024
Chief Financial Officer
Sell
301
$25.40
$7.64K
Edmondson Frazor Titus III
19 Aug 2024
Chief Legal Officer
Sell
1,924
$16.95
$32.62K
Smiley Joshua L
16 Aug 2024
See Remarks
Sell
4,352
$16.67
$72.56K
Chen Yajing
15 Aug 2024
Chief Financial Officer
Sell
422
$16.06
$6.78K
Du Ying
1 Jul 2024
Chairperson & CEO
Sell
7,013
$17.48
$122.57K
Chen Kai-Xian
1 Jul 2024
Director
Sell
7,750
$17.22
$133.46K
Chen Yajing
26 Jun 2024
Chief Financial Officer
Sell
2,154
$17.90
$38.56K
Du Ying
26 Jun 2024
Chairperson & CEO
Sell
23,939
$17.90
$428.53K
Edmondson Frazor Titus III
26 Jun 2024
Chief Legal Officer
Sell
5,062
$17.90
$90.61K
Reinhart Harald
26 Jun 2024
See Remarks
Sell
7,431
$17.90
$133.02K
Amado Rafael
4 Apr 2024
See Remarks
Sell
1,952
$15.67
$30.59K
Chen Yajing
4 Apr 2024
Chief Financial Officer
Sell
845
$15.67
$13.24K
Edmondson Frazor Titus III
4 Apr 2024
Chief Legal Officer
Sell
1,244
$15.67
$19.50K
Reinhart Harald
4 Apr 2024
See Remarks
Sell
2,105
$15.67
$32.99K
Smiley Joshua L
4 Apr 2024
See Remarks
Sell
1,988
$15.67
$31.16K
Chen Yajing
2 Apr 2024
Chief Financial Officer
Sell
519
$16.15
$8.38K
Du Ying
2 Apr 2024
Chairperson & CEO
Sell
1,387
$16.15
$22.40K
Du Ying
2 Apr 2024
Chairperson & CEO
Sell
4,400
$16.15
$71.06K
Reinhart Harald
2 Apr 2024
See Remarks
Sell
413
$16.15
$6.67K
Reinhart Harald
2 Apr 2024
See Remarks
Sell
1,360
$16.15
$21.97K
Edmondson Frazor Titus III
2 Apr 2024
Chief Legal Officer
Sell
210
$16.15
$3.39K
Edmondson Frazor Titus III
2 Apr 2024
Chief Legal Officer
Sell
675
$16.15
$10.90K
Edmondson Frazor Titus III
3 Jan 2024
Chief Legal Officer
Sell
4,803
$26.12
$125.46K
Reinhart Harald
3 Jan 2024
See Remarks
Sell
4,803
$26.12
$125.46K
Du Ying
3 Jan 2024
Chairperson & CEO
Sell
8,380
$26.12
$218.90K
Amado Rafael
2 Jan 2024
See Remarks
Sell
19,363
$26.30
$509.17K
Chen Yajing
2 Nov 2023
Chief Financial Officer
Sell
165
$25.23
$4.16K
Edmondson Frazor Titus III
6 Mar 2023
Chief Legal Officer
Sell
7,965
$40.55
$322.98K
Lis William
3 Mar 2023
Director
Sell
5,434
$38.31
$208.18K
WIRTH PETER
8 Dec 2022
Director
Sell indirect
4,000
$35.33
$141.32K
WIRTH PETER
8 Dec 2022
Director
Sell
3,852
$35.37
$136.25K
DIEKMAN JOHN D
4 Feb 2022
Director
Sell
1,000
$50.17
$50.17K
Lis William
20 Jan 2022
Director
Sell
1,926
$53.40
$102.85K
DIEKMAN JOHN D
5 Nov 2021
Director
Sell
1,000
$91.65
$91.65K
Fu Tao
28 Oct 2021
President & COO
Sell indirect
7,935
$105.13
$834.21K
Fu Tao
28 Oct 2021
President & COO
Sell indirect
2,065
$104.49
$215.77K
Fu Tao
14 Oct 2021
President & COO
Sell indirect
1,400
$103.44
$144.82K
Fu Tao
14 Oct 2021
President & COO
Sell indirect
5,240
$102.90
$539.20K
Fu Tao
14 Oct 2021
President & COO
Sell indirect
3,360
$102.02
$342.79K
Fu Tao
30 Sep 2021
President & COO
Sell indirect
250
$108.85
$27.21K
Fu Tao
30 Sep 2021
President & COO
Sell indirect
2,417
$107.85
$260.67K
Fu Tao
30 Sep 2021
President & COO
Sell indirect
4,619
$106.73
$492.99K
Fu Tao
30 Sep 2021
President & COO
Sell indirect
2,714
$105.55
$286.46K
Fu Tao
15 Sep 2021
President & COO
Sell
100
$134.09
$13.41K
Du Ying
7 Sep 2021
Chairwoman & CEO
Sell
179
$152.75
$27.34K
Du Ying
7 Sep 2021
Chairwoman & CEO
Sell
3,300
$151.83
$501.04K
Du Ying
7 Sep 2021
Chairwoman & CEO
Sell
20,252
$151.10
$3.06M
Du Ying
7 Sep 2021
Chairwoman & CEO
Sell
3,776
$150.05
$566.59K
Du Ying
7 Sep 2021
Chairwoman & CEO
Sell
649
$148.97
$96.68K
Du Ying
7 Sep 2021
Chairwoman & CEO
Sell
86
$147.90
$12.72K
Du Ying
7 Sep 2021
Chairwoman & CEO
Sell
1,161
$146.73
$170.35K
Du Ying
7 Sep 2021
Chairwoman & CEO
Sell
382
$143.25
$54.72K
Du Ying
3 Sep 2021
Chairwoman & CEO
Sell
1,248
$146.55
$182.89K
Du Ying
3 Sep 2021
Chairwoman & CEO
Sell
9,441
$145.70
$1.38M
Du Ying
3 Sep 2021
Chairwoman & CEO
Sell
7,373
$144.84
$1.07M
Du Ying
3 Sep 2021
Chairwoman & CEO
Sell
6,083
$143.94
$875.59K
Du Ying
2 Sep 2021
Chairwoman & CEO
Sell
1,057
$147.75
$156.17K
Du Ying
2 Sep 2021
Chairwoman & CEO
Sell
8,571
$146.35
$1.25M
Du Ying
2 Sep 2021
Chairwoman & CEO
Sell
11,859
$145.85
$1.73M
Du Ying
2 Sep 2021
Chairwoman & CEO
Sell
7,251
$144.73
$1.05M
DIEKMAN JOHN D
5 Aug 2021
Director
Sell
1,000
$149.50
$149.50K
Du Ying
3 Aug 2021
Chairwoman & CEO
Sell
50
$148.24
$7.41K
Du Ying
3 Aug 2021
Chairwoman & CEO
Sell
5,126
$147.64
$756.80K
Du Ying
3 Aug 2021
Chairwoman & CEO
Sell
12,963
$146.68
$1.90M
Du Ying
3 Aug 2021
Chairwoman & CEO
Sell
5,338
$145.75
$778.01K
Du Ying
3 Aug 2021
Chairwoman & CEO
Sell
1,396
$144.71
$202.02K
Du Ying
3 Aug 2021
Chairwoman & CEO
Sell
963
$143.39
$138.08K
Du Ying
3 Aug 2021
Chairwoman & CEO
Sell
381
$141.78
$54.02K
Showing 250 of 351 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 255
Amendments (4/A) skipped 6
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 27
Sales straight out of an exercise 125
Sales at will 165
Transactions with no price 0
Shares from compensation/vesting 8,553,821
Sales filed before the plan box existed 102
History held since 20 Jan 2021