DU YING

PrivateCIK: 1731790

DU YING (Chairwoman & CEO) sold 15.2% of their position (96.39K shares) of ZAI LAB LTD on the open market

Open‑market sale worth $3.36M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderDU YINGCIK 1731790
IssuerZAI LAB LTDCIK 1704292
DirectorOfficer· Chairwoman & CEO
Since Jan 2021
-96.39K
Net shares
Net seller
$3.36M
Total sold
2
Open market trades
0B · 2S
6
Total transactions
96.39K acquired · 192.77K disposed
Non-Derivative Transactions4

American Depositary Shares

Direct
M · Option Exercise

Shares

+50K

Price / share

$0.60

Trade value

$30K

% of position

9.3%
8/12/2025
536.96K586.96K

American Depositary Shares

Direct
S · Sale

Shares

50K

Price / share

$34.25

Trade value

$1.71M

% of position

8.5%
8/12/2025
586.96K536.96K

American Depositary Shares

Direct
M · Option Exercise

Shares

+46.39K

Price / share

$0.60

Trade value

$27.83K

% of position

8.6%
8/13/2025
536.96K583.35K

American Depositary Shares

Direct
S · Sale

Shares

46.39K

Price / share

$35.47

Trade value

$1.65M

% of position

8.0%
8/13/2025
583.35K536.96K
Total

Net shares

+0.00

Net value

-$3.30M

Derivative Transactions2

Stock Options (Right to Buy)

Direct
M · Option Exercise
Converts to

American Depositary Shares

50K shares

Shares

50K

Strike price

0.6

Held after

46.39K

Exercisable

8/12/2025

Stock Options (Right to Buy)

Direct
M · Option Exercise
Converts to

American Depositary Shares

46.39K shares

Shares

46.39K

Strike price

0.6

Held after

0.00

Exercisable

8/13/2025
DU YING — Insider Transaction (Form 4) Filed Aug 14, 2025 | Finecho