Quick Takeaways
- John L. Lamattina has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $6,168,150.
- Recent insider filing activity is available below.
Insider Trading & Ownership of John L. Lamattina
- Location
- Waltham, MA
- Summary
- The estimated net worth of John L. Lamattina is at least $6,168,150 dollars as of 31 Mar 2026. John L. Lamattina is the Director of LIGAND PHARMACEUTICALS INC and owns shares of LIGAND PHARMACEUTICALS INC (LGND) stock worth about $6.17M.
- Signature
- By: /s/ Andrew Reardon, Attorney-in-Fact For John L. LaMattina
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow John L. Lamattina 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: LIGAND PHARMACEUTICALS INC ($6,168,150).
- Past-year value change for that position: -$1,292,418.
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 John L. Lamattina
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| LGND, LGNDZ | LIGAND PHARMACEUTICALS INC | Director | $6,168,150 | -$1,292,418 | -17% | 06 Mar 2026 |
| IMNM | Immunome Inc. | Director | 08 Jun 2023 |
Insider Transactions Reported by John L. Lamattina:
| 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.