CHEN YAJING

PrivateCIK: 1985694
Location

CAMBRIDGE, MA

CHEN YAJING (Chief Financial Officer) sold 2.6% of their position (456.00 shares) of ZAI LAB LTD on the open market

Open‑market sale worth $15.6K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderCHEN YAJINGCIK 1985694
IssuerZAI LAB LTDCIK 1704292
Officer· Chief Financial Officer
Since Mar 2026
-456.00
Net shares
Net seller
$15.6K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
920.00 acquired · 1.38K disposed
Non-Derivative Transactions2

American Depositary Shares

Direct
M · Option Exercise

Shares

+920.00

Price / share

Trade value

% of position

5.5%
10/1/2025
16.72K17.64K

American Depositary Shares

Direct
S · Sale

Shares

456.00

Price / share

$34.25

Trade value

$15.62K

% of position

2.6%
10/2/2025
17.64K17.18K
Total

Net shares

+464.00

Net value

-$15.62K

Derivative Transactions1

Restricted Share Units

Direct
M · Option Exercise
Converts to

American Depositary Shares

920.00 shares

Shares

920.00

Strike price

Held after

920.00

Exercisable

10/1/2025
CHEN YAJING — Insider Transaction (Form 4) Filed Oct 3, 2025 | Finecho