Du Ying Zai Lab LTD (ZLAB) insider trading activity

Du Ying is Chairperson & CEO of Zai Lab Ltd. Currently has a direct ownership of 479,851 shares of ZLAB, which is worth approximately $15.3 Million. The most recent transaction as insider was on Apr 04, 2025, when has been sold 2,945 shares (American Depositary Shares) at a price of $33.11 per share, resulting in proceeds of $97,508. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 480K

2.89% 3M change

56.69% 12M change

Total Value Held $15.3 Million

Du Ying Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
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...
Apr 03 2025	BUY Exercise of conversion of derivative security	-	6,750 Added 1.38%	482,796 American Depositary Sh...
Apr 02 2025	SELL Open market or private sale	$208,449 $35.89 p/Share	5,808 Reduced 1.21%	476,046 American Depositary Sh...
Apr 01 2025	BUY Exercise of conversion of derivative security	-	14,200 Added 2.86%	481,854 American Depositary Sh...
Mar 17 2025	SELL Bona fide gift	-	6,521 Reduced 1.38%	467,654 American Depositary Sh...
Mar 14 2025	SELL Bona fide gift	-	19,942 Reduced 4.04%	474,175 American Depositary Sh...
Mar 05 2025	SELL Open market or private sale	$1,647,737 $35.52 p/Share	46,389 Reduced 8.58%	494,117 American Depositary Sh...
Mar 05 2025	BUY Exercise of conversion of derivative security	$27,833 $0.6 p/Share	46,389 Added 7.9%	540,506 American Depositary Sh...
Mar 04 2025	SELL Open market or private sale	$1,670,499 $33.41 p/Share	50,000 Reduced 9.19%	494,117 American Depositary Sh...
Mar 04 2025	BUY Exercise of conversion of derivative security	$30,000 $0.6 p/Share	50,000 Added 8.42%	544,117 American Depositary Sh...
Mar 03 2025	SELL Open market or private sale	$1,637,500 $32.75 p/Share	50,000 Reduced 9.19%	494,117 American Depositary Sh...
Mar 03 2025	BUY Exercise of conversion of derivative security	$30,000 $0.6 p/Share	50,000 Added 8.42%	544,117 American Depositary Sh...
Feb 28 2025	SELL Open market or private sale	$1,719,500 $34.39 p/Share	50,000 Reduced 9.19%	494,117 American Depositary Sh...
Feb 28 2025	BUY Exercise of conversion of derivative security	$30,000 $0.6 p/Share	50,000 Added 8.42%	544,117 American Depositary Sh...
Dec 11 2024	SELL Bona fide gift	-	500,000 Reduced 50.3%	494,117 American Depositary Sh...
Aug 13 2024	SELL Bona fide gift	-	87,793 Reduced 8.11%	994,117 American Depositary Sh...
Jul 01 2024	SELL Open market or private sale	$122,587 $17.48 p/Share	7,013 Reduced 0.64%	1,081,910 American Depositary Sh...
Jun 28 2024	BUY Exercise of conversion of derivative security	-	17,970 Added 1.62%	1,088,923 American Depositary Sh...
Jun 26 2024	SELL Open market or private sale	$428,508 $17.9 p/Share	23,939 Reduced 2.05%	1,142,833 American Depositary Sh...
Jun 25 2024	BUY Exercise of conversion of derivative security	-	58,800 Added 4.8%	1,166,772 American Depositary Sh...
Apr 02 2024	SELL Open market or private sale	$93,460 $16.15 p/Share	5,787 Reduced 0.52%	1,107,972 American Depositary Sh...
Apr 01 2024	BUY Exercise of conversion of derivative security	$237,423 $16.72 p/Share	14,200 Added 1.26%	1,113,759 American Depositary Sh...
Mar 13 2024	SELL Bona fide gift	-	33,891 Reduced 2.99%	1,099,559 American Depositary Sh...
Jan 03 2024	SELL Open market or private sale	$218,885 $26.12 p/Share	8,380 Reduced 0.73%	1,133,450 American Depositary Sh...
Jan 01 2024	BUY Exercise of conversion of derivative security	-	31,587 Added 2.69%	1,141,830 American Depositary Sh...

Du Ying

Chairperson & CEO

Cambridge, MA

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