Steven B. Ketchum is CSO at AMARIN CORP PLC\UK (AMRN). They have made 26 open-market trades across 2 companies since 2010, most recently 2026-07-01.
CIK 0001289884
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.
1 open-market purchase totalling $67K since 2010, against 25 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AMRN | SELL · 10b5-1 | 2023-12-12 | 2023-12-14 | $0.79 | $27K | +9.8% | +35.4% | +5.2% |
| AMRN | SELL | 2021-02-01 | 2021-02-03 | $8.06 | $3.5M | -13.7% | -32.9% | -46.2% |
| AMRN | SELL | 2021-01-27 | 2021-01-29 | $8.01 | $6.8M | +0.0% | -22.9% | -34.7% |
| AMRN | SELL | 2019-04-30 | 2019-05-02 | $18.67 | $356K | -7.4% | -3.2% | +2.5% |
| AMRN | SELL | 2019-04-01 | 2019-04-01 | $20.05 | $381K | -5.7% | -12.0% | -3.4% |
| AMRN | SELL | 2019-04-01 | 2019-04-01 | $20.05 | $189K | -5.7% | -12.0% | -3.4% |
| AMRN | SELL | 2019-03-01 | 2019-03-01 | $22.10 | $1.0M | -8.3% | -9.8% | -18.1% |
| AMRN | SELL | 2019-02-28 | 2019-03-01 | $21.85 | $2.4M | -8.3% | -9.8% | -18.1% |
| AMRN | SELL | 2019-02-28 | 2019-03-01 | $20.67 | $197K | -8.3% | -9.8% | -18.1% |
| AMRN | SELL | 2019-02-01 | 2019-02-01 | $17.06 | $477K | +1.1% | +27.1% | +7.2% |
| AMRN | SELL | 2019-01-31 | 2019-02-01 | $17.49 | $167K | +1.1% | +27.1% | +7.2% |
| AMRN | SELL | 2019-01-31 | 2019-02-01 | $17.17 | $1.3M | +1.1% | +27.1% | +7.2% |
| AMRN | SELL | 2018-12-31 | 2019-01-02 | $13.51 | $230K | +31.9% | +30.0% | +56.6% |
| AMRN | SELL | 2018-12-31 | 2019-01-02 | $13.51 | $460K | +31.9% | +30.0% | +56.6% |
| AMRN | SELL | 2018-11-30 | 2018-11-30 | $17.79 | $606K | -9.3% | -26.0% | +11.3% |
| AMRN | SELL | 2018-10-31 | 2018-11-02 | $20.72 | $343K | -29.7% | -22.9% | -23.6% |
| AMRN | SELL | 2018-10-31 | 2018-11-02 | $20.74 | $707K | -29.7% | -22.9% | -23.6% |
| AMRN | SELL | 2018-09-28 | 2018-10-02 | $16.42 | $7.1M | +23.1% | +41.9% | -14.7% |
| AMRN | SELL | 2018-09-24 | 2018-09-26 | $10.70 | $15.1M | +40.1% | +62.7% | +3.6% |
| AMRN | SELL | 2018-09-24 | 2018-09-26 | $10.12 | $5.9M | +40.1% | +62.7% | +3.6% |
| AMRN | SELL | 2018-01-23 | 2018-01-23 | $4.41 | $1.2M | -16.0% | -17.9% | -36.9% |
| AMRN | SELL · 10b5-1 | 2018-01-11 | 2018-01-16 | $4.40 | $11K | +3.1% | -11.8% | -26.6% |
| AMRN | SELL | 2018-01-05 | 2018-01-09 | $4.40 | $569K | -5.8% | -18.9% | -32.2% |
| AMRN | SELL | 2018-01-02 | 2018-01-04 | $4.25 | $1.1M | -8.3% | -17.0% | -27.5% |
| AMRN | SELL | 2017-10-05 | 2017-10-06 | $3.48 | $442K | -4.5% | +4.0% | +19.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.