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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

86
Insider
Date
Role
Action
Shares
Price
Amount
Du Ying
18 May 2026
Chairperson & CEO
Sold after exercise
50,000
$19.00
$949.77K
Du Ying
15 May 2026
Chairperson & CEO
Sold after exercise
50,000
$20.74
$1.04M
Du Ying
14 May 2026
Chairperson & CEO
Sold after exercise
50,000
$20.09
$1.00M
Du Ying
13 May 2026
Chairperson & CEO
Sold after exercise
33,769
$20.22
$682.89K
Du Ying
13 May 2026
Chairperson & CEO
Sold after exercise
16,231
$19.44
$315.58K
Amado Rafael
2 Apr 2026
See Remarks
Sold after exercise
9,910
$20.39
$202.06K
Chen Yajing
2 Apr 2026
Chief Financial Officer
Sold after exercise
5,199
$20.39
$106.01K
Du Ying
2 Apr 2026
Chairperson & CEO
Sold after exercise
5,576
$20.39
$113.69K
Edmondson Frazor Titus III
2 Apr 2026
Chief Legal Officer
Sold after exercise
4,194
$20.39
$85.52K
Smiley Joshua L
2 Apr 2026
See Remarks
Sold after exercise
9,614
$20.39
$196.03K
Du Ying
9 Mar 2026
Chairperson & CEO
Sold after exercise
50,000
$19.03
$951.47K
Du Ying
6 Mar 2026
Chairperson & CEO
Sold after exercise
50,000
$19.42
$970.94K
Du Ying
5 Mar 2026
Chairperson & CEO
Sold after exercise
50,000
$19.22
$961.06K
Du Ying
4 Mar 2026
Chairperson & CEO
Sold after exercise
35,710
$19.32
$689.83K
Du Ying
4 Mar 2026
Chairperson & CEO
Sold after exercise
14,290
$18.78
$268.32K
Du Ying
13 Aug 2025
Chairperson & CEO
Sold after exercise
46,387
$35.47
$1.65M
Du Ying
12 Aug 2025
Chairperson & CEO
Sold after exercise
50,000
$34.25
$1.71M
Du Ying
11 Aug 2025
Chairperson & CEO
Sold after exercise
50,000
$34.64
$1.73M
Du Ying
8 Aug 2025
Chairperson & CEO
Sold after exercise
50,000
$34.74
$1.74M
Du Ying
14 May 2025
Chairperson & CEO
Sold after exercise
383
$28.83
$11.04K
Du Ying
14 May 2025
Chairperson & CEO
Sold after exercise
46,006
$28.08
$1.29M
Du Ying
13 May 2025
Chairperson & CEO
Sold after exercise
2,220
$28.89
$64.14K
Du Ying
13 May 2025
Chairperson & CEO
Sold after exercise
47,780
$28.56
$1.36M
Du Ying
12 May 2025
Chairperson & CEO
Sold after exercise
616
$29.92
$18.43K
Du Ying
12 May 2025
Chairperson & CEO
Sold after exercise
49,384
$29.44
$1.45M
Du Ying
9 May 2025
Chairperson & CEO
Sold after exercise
3,638
$30.16
$109.74K
Du Ying
9 May 2025
Chairperson & CEO
Sold after exercise
46,362
$29.58
$1.37M
Du Ying
5 Mar 2025
Chairperson & CEO
Sold after exercise
25,296
$35.84
$906.68K
Du Ying
5 Mar 2025
Chairperson & CEO
Sold after exercise
21,093
$35.20
$742.44K
Du Ying
4 Mar 2025
Chairperson & CEO
Sold after exercise
5,583
$33.99
$189.74K
Du Ying
4 Mar 2025
Chairperson & CEO
Sold after exercise
37,752
$33.55
$1.27M
Du Ying
4 Mar 2025
Chairperson & CEO
Sold after exercise
6,665
$32.69
$217.88K
Du Ying
3 Mar 2025
Chairperson & CEO
Sold after exercise
2,610
$33.50
$87.43K
Du Ying
3 Mar 2025
Chairperson & CEO
Sold after exercise
24,280
$32.99
$801.01K
Du Ying
3 Mar 2025
Chairperson & CEO
Sold after exercise
23,110
$31.75
$733.69K
Du Ying
28 Feb 2025
Chairperson & CEO
Sold after exercise
200
$35.06
$7.01K
Du Ying
28 Feb 2025
Chairperson & CEO
Sold after exercise
46,943
$34.52
$1.62M
Du Ying
28 Feb 2025
Chairperson & CEO
Sold after exercise
2,857
$33.59
$95.98K
Reinhart Harald
3 Mar 2023
See Remarks
Sold after exercise
11,480
$40.00
$459.20K
Reinhart Harald
15 Nov 2022
See Remarks
Sold after exercise
100
$40.03
$4.00K
Reinhart Harald
15 Nov 2022
See Remarks
Sold after exercise
1,754
$40.00
$70.16K
Fu Tao
15 Sep 2021
President & COO
Sold after exercise
400
$133.07
$53.23K
Fu Tao
15 Sep 2021
President & COO
Sold after exercise
1,300
$132.25
$171.93K
Fu Tao
15 Sep 2021
President & COO
Sold after exercise
574
$130.64
$74.99K
Fu Tao
15 Sep 2021
President & COO
Sold after exercise
1,007
$129.29
$130.20K
Fu Tao
15 Sep 2021
President & COO
Sold after exercise
1,541
$128.33
$197.76K
Fu Tao
15 Sep 2021
President & COO
Sold after exercise
3,100
$125.96
$390.48K
Fu Tao
15 Sep 2021
President & COO
Sold after exercise
1,978
$124.98
$247.21K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
500
$146.61
$73.31K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
1,400
$146.07
$204.50K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
800
$144.35
$115.48K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
1,600
$143.34
$229.34K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
700
$141.92
$99.34K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
800
$140.87
$112.70K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
569
$139.27
$79.24K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
900
$138.33
$124.50K
Reinhart Harald
9 Sep 2021
Chief Medical Officer
Sold after exercise
2,731
$137.39
$375.21K
Reinhart Harald
7 Sep 2021
Chief Medical Officer
Sold after exercise
800
$152.11
$121.69K
Reinhart Harald
7 Sep 2021
Chief Medical Officer
Sold after exercise
6,600
$151.28
$998.45K
Reinhart Harald
7 Sep 2021
Chief Medical Officer
Sold after exercise
2,000
$150.41
$300.82K
Reinhart Harald
7 Sep 2021
Chief Medical Officer
Sold after exercise
300
$148.69
$44.61K
Reinhart Harald
7 Sep 2021
Chief Medical Officer
Sold after exercise
200
$146.98
$29.40K
Reinhart Harald
7 Sep 2021
Chief Medical Officer
Sold after exercise
100
$143.00
$14.30K
Du Ying
1 Sep 2021
Chairwoman & CEO
Sold after exercise
176
$149.63
$26.33K
Du Ying
1 Sep 2021
Chairwoman & CEO
Sold after exercise
3,769
$148.77
$560.71K
Du Ying
1 Sep 2021
Chairwoman & CEO
Sold after exercise
6,933
$147.63
$1.02M
Du Ying
1 Sep 2021
Chairwoman & CEO
Sold after exercise
6,826
$146.96
$1.00M
Du Ying
1 Sep 2021
Chairwoman & CEO
Sold after exercise
1,882
$145.92
$274.62K
Du Ying
1 Sep 2021
Chairwoman & CEO
Sold after exercise
4,691
$144.62
$678.41K
Du Ying
1 Sep 2021
Chairwoman & CEO
Sold after exercise
4,166
$143.77
$598.95K
Fu Tao
25 Aug 2021
President & COO
Sold after exercise
200
$144.51
$28.90K
Fu Tao
25 Aug 2021
President & COO
Sold after exercise
3,894
$143.76
$559.80K
Fu Tao
25 Aug 2021
President & COO
Sold after exercise
4,306
$142.71
$614.51K
Fu Tao
25 Aug 2021
President & COO
Sold after exercise
1,600
$141.92
$227.07K
Reinhart Harald
24 Aug 2021
Chief Medical Officer
Sold after exercise
8,000
$143.36
$1.15M
Reinhart Harald
23 Aug 2021
Chief Medical Officer
Sold after exercise
8,000
$135.00
$1.08M
Du Ying
2 Aug 2021
Chairwoman & CEO
Sold after exercise
3,072
$145.83
$447.99K
Du Ying
2 Aug 2021
Chairwoman & CEO
Sold after exercise
60,405
$145.14
$8.77M
Du Ying
2 Aug 2021
Chairwoman & CEO
Sold after exercise
10,183
$144.09
$1.47M
Du Ying
2 Aug 2021
Chairwoman & CEO
Sold after exercise
4,043
$143.30
$579.36K
Du Ying
2 Aug 2021
Chairwoman & CEO
Sold after exercise
2,025
$141.73
$287.00K
Du Ying
2 Aug 2021
Chairwoman & CEO
Sold after exercise
2,051
$140.68
$288.53K
Du Ying
2 Aug 2021
Chairwoman & CEO
Sold after exercise
3,115
$139.62
$434.92K
Fu Tao
15 Jul 2021
President & COO
Sold after exercise
100
$175.00
$17.50K
Fu Tao
15 Jul 2021
President & COO
Sold after exercise
3,265
$174.26
$568.96K
Fu Tao
15 Jul 2021
President & COO
Sold after exercise
3,281
$173.56
$569.45K
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