Spencer R. Berthelsen is Director at IONIS PHARMACEUTICALS INC (IONS). They have made 5 open-market trades across 1 company since 2012, most recently 2026-07-15.
CIK 0001181548
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.
0 open-market purchases, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| IONS | SELL · 10b5-1 | 2026-06-15 | 2026-06-16 | $73.49 | $588K | +10.0% | -25.5% | -29.9% |
| IONS | SELL · 10b5-1 | 2026-06-01 | 2026-06-03 | $75.67 | $605K | -0.3% | +12.2% | -19.3% |
| IONS | SELL · 10b5-1 | 2024-06-17 | 2024-06-20 | $40.29 | $645K | +10.1% | +23.4% | +3.3% |
| IONS | SELL | 2021-06-23 | 2021-06-25 | $37.74 | $566K | -2.0% | -5.5% | -6.1% |
| IONS | SELL | 2020-06-23 | 2020-06-25 | $58.76 | $881K | +0.3% | -0.7% | -18.7% |
| IONS | SELL | 2019-06-24 | 2019-06-26 | $63.67 | $955K | +3.2% | +0.6% | -3.7% |
| IONS | SELL | 2019-06-24 | 2019-06-26 | $63.67 | $1.9M | +3.2% | +0.6% | -3.7% |
| IONS | SELL | 2018-06-25 | 2018-06-25 | $42.30 | $635K | +7.5% | +7.4% | +19.3% |
| ISIS | SELL · 10b5-1 | 2012-06-25 | 2012-06-25 | $11.57 | $116K | N/A | N/A | N/A |
| ISIS | SELL · 10b5-1 | 2012-05-21 | 2012-05-22 | $9.54 | $191K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.