Brian Birchler is VP at IONIS PHARMACEUTICALS INC (IONS). They have made 8 open-market trades across 1 company since 2023, most recently 2026-04-16.
CIK 0001970151
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 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| IONS | 67,500 | $2.9M |
Shares reported on the most recent Form 4, priced at the 2026-04-17 close.
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 |
|---|---|---|---|---|---|---|---|---|
| IONS | SELL | 2026-04-16 | 2026-04-17 | $75.04 | $73K | -0.9% | -4.0% | -27.6% |
| IONS | SELL | 2026-01-30 | 2026-02-02 | $83.03 | $513K | -1.5% | -4.3% | -9.1% |
| IONS | SELL | 2026-01-16 | 2026-01-20 | $75.11 | $637K | +7.2% | +7.9% | -2.9% |
| IONS | SELL · 10b5-1 | 2025-11-06 | 2025-11-07 | $76.17 | $609K | +5.6% | +16.4% | +19.2% |
| IONS | SELL · 10b5-1 | 2025-10-14 | 2025-10-16 | $72.13 | $3.4M | +0.8% | +0.4% | +8.1% |
| IONS | SELL | 2025-04-16 | 2025-04-17 | $28.37 | $19K | +9.5% | +21.4% | +52.5% |
| IONS | SELL | 2025-01-16 | 2025-01-17 | $32.70 | $353K | +5.4% | +1.0% | -10.2% |
| IONS | SELL | 2024-04-16 | 2024-04-17 | $41.66 | $38K | +2.4% | -9.0% | +21.6% |
| IONS | SELL | 2024-01-17 | 2024-01-18 | $50.42 | $453K | +3.2% | -11.8% | -18.7% |
| IONS | SELL | 2023-04-18 | 2023-04-19 | $36.50 | $25K | -2.3% | +7.3% | +15.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.