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Zai Lab Ltd

ZLAB
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001704292

In the last 90 days, Zai Lab Ltd insiders filed 1 open-market purchase and 7 sales; 92 institutions reported holding it in 13F filings for Q2 2026, worth $822.8M in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Zai Lab Ltd insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
1 filing
1 insider, $33.1K in total
Open-market sells
7 filings
4 insiders, $905.1K in total
Insiders trading
5
Net value
−$872.0K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Zai Lab Ltd, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Zai Lab Ltd
NameTitleLast reported holdingLast filingFilings, past year
Chen YajingChief Financial Officer35,635Aug 21, 20269
Lis WilliamDirector41,931Aug 13, 20263
Gaynor RichardDirector80,737Jul 6, 20263
Du YingChairperson & CEO1,221,401Jul 6, 202614
Edmondson Frazor Titus IIIChief Legal Officer30,346Jun 29, 20268
Wirth PeterDirector416,121Jun 22, 20261
Moulder Leon O JrDirector94,973Jun 22, 20261
Diekman John DDirector122,140Jun 22, 20261
Morrison Scott WDirector56,904Jun 22, 20261
Vounatsos MichelDirector72,787Jun 22, 20261
Leung NisaDirector96,297Jun 22, 20261
Wang YizheOperating Partner–Jun 8, 20261
Amado RafaelSee Remarks57,022Apr 8, 20265
Smiley Joshua LSee Remarks117,602Apr 8, 20263
Chen Kai-XianDirector39,525Jan 3, 20250
Reinhart HaraldSee Remarks62,619Jun 27, 20240
Cho William Ki ChulChief Financial Officer53,747Apr 5, 20230
Liang YiCCO & President, Greater China104,847Jun 27, 20220
Sandler Alan B.Head of Global Dev., Oncology28,985Jun 27, 20220
Fu TaoPresident & COO77,500IndirectOct 29, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 21, 2026 (view filing)4:16 PM ETAug 192 daysChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−260$27.00−$7.02K−0.7%35.6K after10b5-1
Aug 13, 2026 (view filing)4:15 PM ETAug 121 dayLis WilliamDirectorSSaleAmerican Depositary Shares−8.51K$25.00−$212.7K−16.9%41.9K after10b5-1
Aug 13, 2026 (view filing)4:15 PM ETAug 112 daysChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−619$25.00−$15.5K−1.7%35.1K after10b5-1
Jul 6, 2026 (view filing)4:14 PM ETJul 15 daysGaynor RichardDirectorPPurchaseAmerican Depositary Shares+1.74K$19.05+$33.1K+2.2%80.7K after10b5-1
Jul 1, 2026 (view filing)4:24 PM ETJun 301 dayDu YingChairperson & CEOSSaleAmerican Depositary Shares−7.03K$18.53−$130.2K−0.6%1.20M after
Jun 29, 2026 (view filing)Jun 263 daysEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−4.10K$17.46−$71.6K−11.9%30.3K after
Jun 29, 2026 (view filing)Jun 263 daysDu YingChairperson & CEOSSaleAmerican Depositary Shares−24.5K$17.46−$428.5K−2.0%1.19M after
Jun 29, 2026 (view filing)Jun 263 daysChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−2.26K$17.46−$39.5K−6.0%35.7K after
Jun 24, 2026 (view filing)Jun 222 daysLis WilliamDirectorSSaleAmerican Depositary Shares−7.04K$18.09−$127.4K−12.2%50.4K after10b5-1
May 19, 2026 (view filing)May 15-184 daysDu YingChairperson & CEOSSaleAmerican Depositary Shares−100.0K$19.87−$1.99M−8.2%1.12M after2 lots10b5-1
May 15, 2026 (view filing)May 141 dayEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−3.52K$20.19−$71.0K−15.1%19.8K after10b5-1
May 15, 2026 (view filing)May 13-142 daysDu YingChairperson & CEOSSaleAmerican Depositary Shares−100.0K$20.03−$2.00M−8.2%1.12M after3 lots10b5-1
Apr 8, 2026 (view filing)Apr 62 daysSmiley Joshua LSee RemarksSSaleAmerican Depositary Shares−3.02K$20.45−$61.7K−2.5%117.6K after
Apr 8, 2026 (view filing)Apr 62 daysEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−1.22K$20.45−$25.0K−5.0%23.4K after
Apr 8, 2026 (view filing)Apr 62 daysDu YingChairperson & CEOSSaleAmerican Depositary Shares−2.65K$20.45−$54.3K−0.2%1.12M after
Apr 8, 2026 (view filing)Apr 62 daysChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−853$20.45−$17.4K−2.6%31.7K after
Apr 8, 2026 (view filing)Apr 62 daysAmado RafaelSee RemarksSSaleAmerican Depositary Shares−2.74K$20.45−$56.0K−4.6%57.0K after
Apr 3, 2026 (view filing)Apr 21 daySmiley Joshua LSee RemarksSSaleAmerican Depositary Shares−9.61K$20.39−$196.0K−7.4%120.6K after
Apr 3, 2026 (view filing)Apr 21 dayEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−4.19K$20.39−$85.5K−14.6%24.6K after
Apr 3, 2026 (view filing)Apr 21 dayDu YingChairperson & CEOSSaleAmerican Depositary Shares−5.58K$20.39−$113.7K−0.5%1.13M after
Apr 3, 2026 (view filing)Apr 21 dayChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−5.20K$20.39−$106.0K−13.8%32.6K after
Apr 3, 2026 (view filing)Apr 21 dayAmado RafaelSee RemarksSSaleAmerican Depositary Shares−9.91K$20.39−$202.1K−14.2%59.8K after
Mar 19, 2026 (view filing)Mar 172 daysGaynor RichardDirectorPPurchaseAmerican Depositary Shares+1.73K$18.91+$32.7K+3.2%56.6K after10b5-1
Mar 16, 2026 (view filing)Mar 133 daysSmiley Joshua LSee RemarksSSaleAmerican Depositary Shares−1.97K$18.63−$36.6K−2.1%91.0K after
Mar 16, 2026 (view filing)Mar 133 daysEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−1.28K$18.63−$23.9K−16.5%6.49K after
Mar 16, 2026 (view filing)Mar 133 daysChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−1.70K$18.63−$31.7K−7.8%20.0K after
Mar 16, 2026 (view filing)Mar 133 daysAmado RafaelSee RemarksSSaleAmerican Depositary Shares−2.96K$18.63−$55.1K−6.2%44.8K after
Mar 12, 2026 (view filing)Mar 111 dayDu YingChairperson & CEOSSaleAmerican Depositary Shares−1.07K$19.08−$20.4K−0.1%1.11M after10b5-1
Mar 10, 2026 (view filing)Mar 6-94 daysDu YingChairperson & CEOSSaleAmerican Depositary Shares−100.0K$19.23−$1.92M−9.4%964.2K after2 lots10b5-1
Mar 6, 2026 (view filing)Mar 51 dayEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−15.6K$19.06−$296.7K−81.6%3.52K after10b5-1
Mar 6, 2026 (view filing)Mar 4-52 daysDu YingChairperson & CEOSSaleAmerican Depositary Shares−100.0K$19.19−$1.92M−9.4%964.2K after3 lots10b5-1
Mar 5, 2026 (view filing)Mar 32 daysAmado RafaelSee RemarksSSaleAmerican Depositary Shares−10.0K$17.38−$173.8K−19.1%42.4K after10b5-1
Jan 2, 2026 (view filing)Dec 31, 20252 daysAmado RafaelSee RemarksSSaleAmerican Depositary Shares−10.8K$17.43−$188.0K−17.1%52.4K after
Dec 18, 2025 (view filing)Dec 162 daysEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−8.65K$17.14−$148.3K−31.2%19.1K after10b5-1
Nov 25, 2025 (view filing)Nov 214 daysEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−14.3K$19.78−$283.4K−34.1%27.7K after10b5-1
Nov 4, 2025 (view filing)Nov 31 dayChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−240$26.83−$6.44K−1.4%17.4K after
Oct 3, 2025 (view filing)Oct 21 dayChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−456$34.25−$15.6K−2.6%17.2K after
Sep 12, 2025 (view filing)Sep 102 daysSmiley Joshua LSee RemarksPPurchaseAmerican Depositary Shares+10.0K$28.91+$289.1K+13.1%86.6K after
Aug 19, 2025 (view filing)Aug 181 daySmiley Joshua LSee RemarksSSaleAmerican Depositary Shares−6.64K$36.24−$240.7K−8.0%76.6K after
Aug 19, 2025 (view filing)Aug 181 dayEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−1.88K$36.24−$68.2K−4.3%42.1K after
Aug 18, 2025 (view filing)Aug 153 daysChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−1.44K$35.42−$50.9K−7.9%16.7K after2 lots10b5-1
Aug 14, 2025 (view filing)Aug 12-132 daysDu YingChairperson & CEOSSaleAmerican Depositary Shares−96.4K$34.84−$3.36M−15.2%537.0K after2 lots10b5-1
Aug 12, 2025 (view filing)Aug 84 daysAmado RafaelSee RemarksSSaleAmerican Depositary Shares−3.00K$35.00−$105.0K−6.6%42.2K after10b5-1
Aug 12, 2025 (view filing)Aug 84 daysChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−4.10K$34.01−$139.3K−19.5%16.9K after10b5-1
Aug 12, 2025 (view filing)Aug 8-114 daysDu YingChairperson & CEOSSaleAmerican Depositary Shares−100.0K$34.69−$3.47M−15.7%537.0K after2 lots10b5-1
Jul 3, 2025 (view filing)Jul 21 dayDu YingChairperson & CEOSSaleAmerican Depositary Shares−7.07K$35.23−$249.1K−1.3%537.0K after
Jul 1, 2025 (view filing)Jun 301 dayDu YingChairperson & CEOSSaleAmerican Depositary Shares−6.92K$35.52−$245.7K−1.3%526.0K after
Jun 27, 2025 (view filing)Jun 261 dayEdmondson Frazor Titus IIIChief Legal OfficerSSaleAmerican Depositary Shares−5.88K$36.13−$212.3K−13.1%39.1K after
Jun 27, 2025 (view filing)Jun 261 dayDu YingChairperson & CEOSSaleAmerican Depositary Shares−23.7K$36.13−$855.2K−4.4%515.0K after
Jun 27, 2025 (view filing)Jun 261 dayChen YajingChief Financial OfficerSSaleAmerican Depositary Shares−2.67K$36.13−$96.6K−11.3%21.0K after