Quick Takeaways
- Patrick J. Heron has 6 issuer positions tracked on this page.
- Estimated disclosed ownership value: $628,363,103.
- Recent insider filing activity is available below.
- Info
- Significant Ownership
- Insider Ownership
Insider Trading & Ownership of Patrick J. Heron
- Location
- Palo Alto, CA
- Summary
- The estimated net worth of Patrick J. Heron is at least $628,363,103 dollars as of 27 Jan 2026. Patrick J. Heron is the Director of Mirum Pharmaceuticals, Inc. and owns shares of Mirum Pharmaceuticals, Inc. (MIRM) stock worth about $313.78M. Patrick J. Heron is the Director of Arcutis Biotherapeutics, Inc. and owns shares of Arcutis Biotherapeutics, Inc. (ARQT) stock worth about $121.14M. Patrick J. Heron is the Director, 10%+ Owner of MBX Biosciences, Inc. and owns shares of MBX Biosciences, Inc. (MBX) stock worth about $93.95M. Patrick J. Heron is the Director of Imago BioSciences, Inc. and owns shares of Imago BioSciences, Inc. stock worth about $83.24M. Patrick J. Heron is the Director of HilleVax, Inc. and owns shares of HilleVax, Inc. stock worth about $16.25M.
- Signature
- /s/ Jennifer Martin, Attorney-in-Fact For Patrick J. Heron
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Patrick J. Heron 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: Mirum Pharmaceuticals, Inc. ($313,780,314).
- Past-year value change for that position: +$8,999,984.
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 Patrick J. Heron
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| MIRM | Mirum Pharmaceuticals, Inc. | Director | $313,780,314 | +$8,999,984 | +3% | 23 Jan 2026 |
| ARQT | Arcutis Biotherapeutics, Inc. | Director | $121,139,135 | +$373,039 | +0.31% | 13 Jun 2025 |
| MBX | MBX Biosciences, Inc. | Director, 10%+ Owner | $93,949,920 | +$11,999,988 | +15% | 26 Sep 2025 |
| IMGO | Imago BioSciences, Inc. | Director | $83,243,916 | 20 Jul 2021 | ||
| HLVX | HilleVax, Inc. | Director | $16,249,818 | 23 Jun 2025 | ||
| PCVX | Vaxcyte, Inc. | Director | 02 Jun 2021 |
Insider Transactions Reported by Patrick J. Heron:
| 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.