John L. Lamattina is Director at LIGAND PHARMACEUTICALS INC (LGND). They have made 16 open-market trades across 4 companies since 2007, most recently 2026-06-10.
CIK 0001216074
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
4 open-market purchases totalling $345K since 2008, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PFE | 383,190 | $11.3M |
| LGND | 26,969 | $8.0M |
| IMNM | 66,953 | $1.1M |
| ZFGN | 31,376 | $373K |
| HGSI | 42,843 | — |
| Total | $20.8M |
Shares reported on the most recent Form 4, priced at the 2026-06-12 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| LGND | SELL | 2026-06-10 | 2026-06-12 | $250.88 | $1.2M | +16.1% | +21.8% | +13.5% |
| LGND | SELL | 2026-03-06 | 2026-03-31 | $200.76 | $434K | +4.9% | +12.6% | +54.3% |
| LGND | SELL | 2025-11-07 | 2025-11-12 | $205.45 | $1.7M | +1.5% | -7.0% | -8.2% |
| LGND | SELL | 2024-11-27 | 2024-12-02 | $123.65 | $595K | -7.4% | -11.6% | -8.5% |
| LGND | SELL | 2021-11-16 | 2021-11-17 | $161.86 | $1.6M | -0.4% | -10.2% | -23.9% |
| IMNM | BUY | 2021-05-24 | 2021-05-26 | $18.58 | $196K | -12.2% | -14.2% | -33.5% |
| LGND | SELL | 2018-09-04 | 2018-09-05 | $254.96 | $1.7M | -0.6% | -0.4% | -40.2% |
| LGND | SELL | 2018-06-04 | 2018-06-04 | $194.51 | $778K | -2.6% | +7.4% | +31.1% |
| LGND | SELL | 2018-03-05 | 2018-03-06 | $160.90 | $1.1M | +3.4% | -5.0% | +18.5% |
| LGND | SELL | 2017-11-17 | 2017-11-17 | $139.79 | $559K | -3.1% | +0.8% | +15.6% |
| LGND | SELL | 2014-03-18 | 2014-03-20 | $78.83 | $394K | -9.9% | -3.4% | -3.4% |
| LGND | BUY | 2011-03-11 | 2011-03-14 | $9.81 | $98K | -9.9% | -3.4% | -3.4% |
| HGSI | BUY | 2009-03-13 | 2009-03-16 | $0.72 | $7K | N/A | N/A | N/A |
| HGSI | BUY | 2008-11-12 | 2008-11-13 | $2.19 | $44K | N/A | N/A | N/A |
| PFE | SELL | 2007-06-15 | 2007-06-18 | $26.48 | $955K | -4.6% | +0.3% | +0.3% |
| PFE | SELL | 2007-02-07 | 2007-02-08 | $26.54 | $366K | -4.6% | +0.3% | +0.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.