Du Ying Zai Lab LTD (ZLAB) insider trading activity

ZLAB Quotes by TradingView

Du Ying is Chairperson & CEO of Zai Lab Ltd. Currently has a direct ownership of 890,019 shares of ZLAB, which is worth approximately $25.3 Million. The most recent transaction as insider was on Aug 29, 2025, when has been sold 251,319 shares (American Depositary Shares) at a price of $32.59 per share, resulting in proceeds of $8,190,486. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 890K
85.48% 3M change
10.47% 12M change
Total Value Held $25.3 Million

Du Ying Transaction History

Date Transaction Value Shares Traded Shares Held Form
Aug 29 2025
SELL
Payment of exercise price or tax liability
$8,190,486 $32.59 p/Share
251,319 Reduced 22.02%
890,019 American Depositary Sh...
Aug 29 2025
BUY
Exercise of conversion of derivative security
$725,251 $1.2 p/Share
604,376 Added 34.62%
1,141,338 American Depositary Sh...
Aug 13 2025
SELL
Open market or private sale
$1,645,346 $35.47 p/Share
46,387 Reduced 7.95%
536,962 American Depositary Sh...
Aug 13 2025
BUY
Exercise of conversion of derivative security
$27,832 $0.6 p/Share
46,387 Added 7.37%
583,349 American Depositary Sh...
Aug 12 2025
SELL
Open market or private sale
$1,712,500 $34.25 p/Share
50,000 Reduced 8.52%
536,962 American Depositary Sh...
Aug 12 2025
BUY
Exercise of conversion of derivative security
$30,000 $0.6 p/Share
50,000 Added 7.85%
586,962 American Depositary Sh...
Aug 11 2025
SELL
Open market or private sale
$1,732,000 $34.64 p/Share
50,000 Reduced 8.52%
536,962 American Depositary Sh...
Aug 11 2025
BUY
Exercise of conversion of derivative security
$30,000 $0.6 p/Share
50,000 Added 7.85%
586,962 American Depositary Sh...
Aug 08 2025
SELL
Open market or private sale
$1,737,000 $34.74 p/Share
50,000 Reduced 8.52%
536,962 American Depositary Sh...
Aug 08 2025
BUY
Exercise of conversion of derivative security
$30,000 $0.6 p/Share
50,000 Added 7.85%
586,962 American Depositary Sh...
Jul 02 2025
SELL
Open market or private sale
$249,146 $35.23 p/Share
7,072 Reduced 1.3%
536,962 American Depositary Sh...
Jul 01 2025
BUY
Exercise of conversion of derivative security
-
18,000 Added 3.2%
544,034 American Depositary Sh...
Jun 30 2025
SELL
Open market or private sale
$245,727 $35.52 p/Share
6,918 Reduced 1.3%
526,034 American Depositary Sh...
Jun 27 2025
BUY
Exercise of conversion of derivative security
-
17,970 Added 3.26%
532,952 American Depositary Sh...
Jun 26 2025
SELL
Open market or private sale
$855,160 $36.13 p/Share
23,669 Reduced 4.39%
514,982 American Depositary Sh...
Jun 25 2025
BUY
Exercise of conversion of derivative security
-
58,800 Added 9.84%
538,651 American Depositary Sh...
May 14 2025
SELL
Open market or private sale
$1,320,230 $28.46 p/Share
46,389 Reduced 8.82%
479,851 American Depositary Sh...
May 14 2025
BUY
Exercise of conversion of derivative security
$27,833 $0.6 p/Share
46,389 Added 8.1%
526,240 American Depositary Sh...
May 13 2025
SELL
Open market or private sale
$1,436,000 $28.72 p/Share
50,000 Reduced 9.44%
479,851 American Depositary Sh...
May 13 2025
BUY
Exercise of conversion of derivative security
$30,000 $0.6 p/Share
50,000 Added 8.62%
529,851 American Depositary Sh...
May 12 2025
SELL
Open market or private sale
$1,484,000 $29.68 p/Share
50,000 Reduced 9.44%
479,851 American Depositary Sh...
May 12 2025
BUY
Exercise of conversion of derivative security
$30,000 $0.6 p/Share
50,000 Added 8.62%
529,851 American Depositary Sh...
May 09 2025
SELL
Open market or private sale
$1,493,500 $29.87 p/Share
50,000 Reduced 9.44%
479,851 American Depositary Sh...
May 09 2025
BUY
Exercise of conversion of derivative security
$30,000 $0.6 p/Share
50,000 Added 8.62%
529,851 American Depositary Sh...
Apr 04 2025
SELL
Open market or private sale
$97,508 $33.11 p/Share
2,945 Reduced 0.61%
479,851 American Depositary Sh...
DY

Du Ying

Chairperson & CEO
Cambridge, MA

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