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Who

William Lis

Director

Company insider

Files Form 4 as: Director, Zai Lab; Director and Officer, Jasper Therapeutics; Director, Eidos Therapeutics; Chief Executive Officer, Portola Pharmaceuticals.

In numbers

Trades disclosed
154
Buys
0
Sells
39
Bought
$0
Sold
$29.2M
Companies
4
Companies where not an officer
2
First trade
26 Mar 2014
Last trade
12 Aug 2026
Last filed
13 Aug 2026

Companies traded

Where they are an officer
JSPR Jasper TherapeuticsDirector, Officer · Biotechnology · last 13 Oct 20230 buys · 4 sells
Portola PharmaceuticalsDirector, Officer · last 23 Aug 20180 buys · 28 sells
Everywhere else they filed: board seats, 10% stakes, other companies
ZLAB Zai LabDirector · Biotechnology · last 12 Aug 20260 buys · 7 sells
Eidos TherapeuticsDirector · last 26 Jan 20210 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
10Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
12 Aug 2026filed 13 Aug 2026ZLAB Zai LabBiotechnologySEC FORM 4 Sold$213K8,506 at $25.00filing
12 Aug 2026filed 13 Aug 2026ZLAB Zai LabBiotechnologySEC FORM 4 Sold$213K8,506 at $25.00filing
22 Jun 2026filed 24 Jun 2026ZLAB Zai LabBiotechnologySEC FORM 4 Sold$127K7,040 at $18.09filing
22 Jun 2026filed 24 Jun 2026ZLAB Zai LabBiotechnologySEC FORM 4 Sold$127K7,040 at $18.09filing
17 Jun 2026filed 22 Jun 2026ZLAB Zai LabBiotechnologySEC FORM 4 Code A—22,371 at $0.00filing
17 Jun 2026filed 22 Jun 2026ZLAB Zai LabBiotechnologySEC FORM 4 Code A—22,371 at $0.00filing
20 Jun 2025filed 23 Jun 2025ZLAB Zai LabBiotechnologySEC FORM 4 Sold$493K13,814 at $35.67filing
18 Jun 2025filed 23 Jun 2025ZLAB Zai LabBiotechnologySEC FORM 4 Code A—10,831 at $0.00filing
28 Feb 2025filed 4 Mar 2025ZLAB Zai LabBiotechnologySEC FORM 4 Sold$495K15,000 at $32.98filing
1 Jul 2024filed 3 Jul 2024ZLAB Zai LabBiotechnologySEC FORM 4 Sold$178K10,297 at $17.31filing
1 Jul 2024filed 3 Jul 2024ZLAB Zai LabBiotechnologySEC FORM 4 Sold$1,804100 at $18.04filing
18 Jun 2024filed 20 Jun 2024ZLAB Zai LabBiotechnologySEC FORM 4 Code A—21,253 at $0.00filing
13 Oct 2023filed 13 Oct 2023JSPR Jasper TherapeuticsBiotechnologySEC FORM 4 Sold$6,7707,965 at $0.85filing
29 Jun 2023filed 30 Jun 2023ZLAB Zai LabBiotechnologySEC FORM 4 Code A$500K18,903 at $26.45filing
7 Jun 2023filed 8 Jun 2023JSPR Jasper Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—47,000 at $0.00filing
13 Apr 2023filed 14 Apr 2023JSPR Jasper TherapeuticsBiotechnologySEC FORM 4 Sold$12K8,500 at $1.44filing
3 Mar 2023filed 7 Mar 2023ZLAB Zai LabBiotechnologySEC FORM 4 Sold$208K5,434 at $38.31filing
12 Oct 2022filed 13 Oct 2022JSPR Jasper TherapeuticsBiotechnologySEC FORM 4 Code A—29,500 at $0.00filing
27 Jun 2022filed 28 Jun 2022JSPR Jasper TherapeuticsBiotechnologySEC FORM 4 Sold$51K24,743 at $2.08filing
24 Jun 2022filed 28 Jun 2022JSPR Jasper TherapeuticsBiotechnologySEC FORM 4 Sold$50K24,743 at $2.02filing

News

Head-To-Head Contrast: Zai Lab (NASDAQ:ZLAB) versus Madrigal Pharmaceuticals (NASDAQ:MDGL)ZLAB · dailypolitical.com · 25 Oct 2026

0 headlines in the last 90 days name William Lis; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Health Care11
Not placed28

Buys in green, sells in red, by the company’s sector.

Related people

Patrick J. CrutcherDirector · Director at Jasper Therapeutics, filing Form 4 there in the last year
Thomas G. WiggansDirector · Director at Jasper Therapeutics, filing Form 4 there in the last year
Judith Anne ShizuruDirector · Director at Jasper Therapeutics, filing Form 4 there in the last year
Kurt Von EmsterDirector · Director at Jasper Therapeutics, filing Form 4 there in the last year
Svetlana LucasDirector · Director at Jasper Therapeutics, filing Form 4 there in the last year
Yajing ChenChief Financial Officer · Also traded ZLAB in the last 90 days