Quick Takeaways
- William E. Duke has 3 issuer positions tracked on this page.
- Estimated disclosed ownership value: $303,605.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of William E. Duke
- Location
- New Haven, CT
- Summary
- The estimated net worth of William E. Duke is at least $303,605 dollars as of 18 Feb 2026. William E. Duke is the Chief Financial Officer of Invivyd, Inc. and owns shares of Invivyd, Inc. (IVVD) stock worth about $303.6K.
- Signature
- /s/ Jill Andersen attorney-in-fact for William E. Duke
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow William E. Duke and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
What Changed
- Largest disclosed position: Invivyd, Inc. ($303,605).
- Past-year value change for that position: -$93,158.
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.
Official SEC Source
Filed on Form 4
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
See Original FilingOwnership of William E. Duke
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| IVVD | Invivyd, Inc. | Chief Financial Officer | $303,605 | -$93,158 | -23% | 15 Feb 2026 |
| APGN | Apexigen, Inc. | Chief Financial Officer | 23 Aug 2023 | |||
| KLDO | Kaleido Biosciences, Inc. | Chief Financial Officer | 14 Jan 2022 |
Insider Transactions Reported by William E. Duke:
| 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.