Zai Lab Ownership & Insider Activity

Zai Lab (ZLAB) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.3% of shares outstanding. Institutional investors hold 5.8%. Over the past 90 days, insiders made 3 sales worth $235K.

Shares Outstanding

112.266M

Shares Float

110.023M

Insider Shares Owned

2.921M

Insider % Owned

0.3%

Institutional Shares Held

6.483M

Institutional % Held

5.8%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$235K total

Net Activity

Net Selling

Net Value (90d)

-$235K

Zai Lab Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Aug 19, 2026	Yajing Chen	CHIEF FINANCIAL OFFICER	SELL	260.000	$27.00	$7K
Aug 12, 2026	William Lis	—	SELL	8.506K	$25.00	$213K
Aug 11, 2026	Yajing Chen	CHIEF FINANCIAL OFFICER	SELL	619.000	$25.00	$15K
Jul 1, 2026	RICHARD GAYNOR	—	BUY	1.736K	$19.05	$33K
Jun 29, 2026	Ying Du	CHAIRPERSON & CEO	SELL-OPTIONS	10.944K	$18.53	$130K
Jun 25, 2026	Titus Frazor Edmondson III	CHIEF LEGAL OFFICER	SELL-OPTIONS	10.497K	$17.46	$72K
Jun 25, 2026	Ying Du	CHAIRPERSON & CEO	SELL-OPTIONS	34.257K	$17.46	$429K
Jun 25, 2026	Yajing Chen	CHIEF FINANCIAL OFFICER	SELL-OPTIONS	3.986K	$17.46	$40K
Jun 22, 2026	William Lis	—	SELL	7.040K	$18.09	$127K
May 15, 2026	Ying Du	CHAIRPERSON & CEO	SELL-OPTIONS	—	$10.80	$1.8M
May 14, 2026	Titus Frazor Edmondson III	CHIEF LEGAL OFFICER	SELL	3.517K	$20.19	$71K
May 13, 2026	Ying Du	CHAIRPERSON & CEO	SELL-OPTIONS	—	$10.89	$1.8M