Birchler Brian (CIK 1970151) reported 18 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-04-17). Recent activity: Buy IONS (1,875 shares), Sell IONS (973 shares), Buy IONS (351 shares), Buy IONS (11,991 shares), Sell IONS (6,179 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-17 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 1,875 | $0 |
| 2026-04-17 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Sell | 973 | $73,016 |
| 2026-03-03 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 351 | $17,153 |
| 2026-02-02 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 11,991 | $0 |
| 2026-02-02 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Sell | 6,179 | $513,042 |
| 2026-01-20 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 20,089 | $0 |
| 2026-01-20 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Sell | 8,480 | $636,933 |
| 2025-11-07 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Sell | 8,000 | $609,360 |
| 2025-10-16 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 11,475 | $617,011 |
| 2025-10-16 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Sell | 11,475 | $826,544 |
| 2025-10-16 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 12,425 | $668,092 |
| 2025-10-16 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Sell | 12,425 | $897,458 |
| 2025-09-03 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 166 | $4,600 |
| 2025-04-17 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 1,875 | $0 |
| 2025-04-17 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Sell | 680 | $19,292 |
| 2025-03-04 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 414 | $11,679 |
| 2025-01-17 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Buy | 14,283 | $0 |
| 2025-01-17 | IONIS PHARMACEUTICALS INC (IONS) | EVP, Corp and Development Ops | Sell | 5,400 | $176,580 |
Source: SEC Form 4 filings · as of 2026-04-17