Quick Takeaways
- William Lis has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $1,286,945.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of William Lis
- Location
- South San Francisco, CA
- Summary
- The estimated net worth of William Lis is at least $1,286,945 dollars as of 23 Jun 2025. William Lis is the Director of Zai Lab Ltd and owns shares of Zai Lab Ltd (ZLAB) stock worth about $1.25M. William Lis is the Director of Jasper Therapeutics, Inc. and owns shares of Jasper Therapeutics, Inc. (JSPR) stock worth about $34.7K.
- Signature
- /s/ Bruce Blefeld, Attorney-in-Fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow William Lis and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: Zai Lab Ltd ($1,252,231).
- Past-year value change for that position: -$492,745.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of William Lis
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| ZLAB | Zai Lab Ltd | Director | $1,252,231 | -$492,745 | -28% | 18 Jun 2025 |
| JSPR, JSPRW | Jasper Therapeutics, Inc. | Director | $34,714 | 13 Oct 2023 |
Insider Transactions Reported by William Lis:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.