Quick Takeaways
- Michael R. Hayden has 4 issuer positions tracked on this page.
- Estimated disclosed ownership value: $5,402,781.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Michael R. Hayden
- Location
- Victoria, British Columbia, Canada
- Summary
- The estimated net worth of Michael R. Hayden is at least $5,402,781 dollars as of 30 Oct 2025. Michael R. Hayden is the Director of Xenon Pharmaceuticals Inc. and owns shares of Xenon Pharmaceuticals Inc. (XENE) stock worth about $3.18M. Michael R. Hayden is the Director of IONIS PHARMACEUTICALS INC and owns shares of IONIS PHARMACEUTICALS INC (IONS) stock worth about $2.22M.
- Signature
- /s/ Ryan A. Murr, as attorney-in-fact for Michael R. Hayden
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Michael R. Hayden 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: Xenon Pharmaceuticals Inc. ($3,178,448).
- Past-year value change for that position: .
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 Michael R. Hayden
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| XENE | Xenon Pharmaceuticals Inc. | Director | $3,178,448 | 03 Jun 2021 | ||
| IONS | IONIS PHARMACEUTICALS INC | Director | $2,224,333 | +$477,900 | +27% | 15 Jul 2025 |
| ETNB | 89bio, Inc. | Director | $0 | 30 Oct 2025 | ||
| ABCL | AbCellera Biologics Inc. | Director | 12 Jun 2025 |
Insider Transactions Reported by Michael R. Hayden:
| 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.