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Zai Lab Ltd

ZLAB Net selling
CIK 0001704292 #1762 in the set updated 17 Sep 2026
Bought (12 mo)
$65.80K
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$11.13M
$1.36M on a plan · $8.53M straight out of an exercise
Sold at will
$1.24M
16 of 41 sales
Net
−$11.07M
−$1.18M against sales at will

By person

14 insiders · 45 transactions
36.2×

Samantha (Ying) Du holds 36.2 times base salary in stock. $32.98M 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
$8.58M (15) scheduled
−$8.58M
1,221,401
0.1088%
$32.98M
+22.9%
Edmondson Frazor Titus III
Chief Legal Officer
$1.01M (8) scheduled
−$1.01M
30,346
0.0027%
$819.34K
+5.1%
Amado Rafael
See Remarks
$674.99K (5) scheduled
−$674.99K
57,022
0.0051%
$1.54M
+179.3%
Lis William
Director
$340.00K (2) scheduled
−$340.00K
41,931
0.0037%
$1.13M
−21.0%
Smiley Joshua L
See Remarks
$294.34K (3) scheduled
−$294.34K
117,602
0.0105%
$3.18M
+172.0%
Chen Yajing
Chief Financial Officer
$239.26K (8) scheduled
−$239.26K
35,635
0.0032%
$962.15K
+145.0%
GAYNOR RICHARD
Director
$65.80K (2)
+$65.80K
80,737
0.0072%
$2.18M
+73.4%
WIRTH PETER
Director
416,121
0.0371%
$11.24M
+8.7%
DIEKMAN JOHN D
Director
122,140
0.0109%
$3.30M
+37.3%
Leung Nisa
Director
96,297
0.0086%
$2.60M
+52.6%
MOULDER LEON O JR
Director
94,973
0.0085%
$2.56M
+53.8%
Vounatsos Michel
Director
72,787
0.0065%
$1.97M
+83.9%
Morrison Scott W
Director
56,904
0.0051%
$1.54M
+19.8%
Chen Kai-Xian
Director
39,525
0.0035%
$1.07M
−35.0%
Insider
Date
Role
Action
Shares
Price
Amount
Chen Yajing
19 Aug 2026
Chief Financial Officer
Sold on a plan
260
$27.00
$7.02K
Lis William
12 Aug 2026
Director
Sold on a plan
8,506
$25.00
$212.65K
Chen Yajing
11 Aug 2026
Chief Financial Officer
Sold on a plan
619
$25.00
$15.48K
Lis William
22 Jun 2026
Director
Sold on a plan
7,040
$18.09
$127.35K
Edmondson Frazor Titus III
14 May 2026
Chief Legal Officer
Sold on a plan
3,517
$20.19
$71.01K
Du Ying
11 Mar 2026
Chairperson & CEO
Sold on a plan
1,067
$19.08
$20.36K
Edmondson Frazor Titus III
5 Mar 2026
Chief Legal Officer
Sold on a plan
15,569
$19.06
$296.75K
Amado Rafael
3 Mar 2026
See Remarks
Sold on a plan
10,000
$17.38
$173.80K
Edmondson Frazor Titus III
16 Dec 2025
Chief Legal Officer
Sold on a plan
8,651
$17.14
$148.28K
Edmondson Frazor Titus III
21 Nov 2025
Chief Legal Officer
Sold on a plan
14,328
$19.78
$283.41K

What was left out

Form 4 filings counted 52
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 10
Sales straight out of an exercise 15
Sales at will 16
Transactions with no price 0
Shares from compensation/vesting 2,434,318
History held since 20 Jan 2021