Birchler Brian insider trades
Birchler Brian has filed 21 Form 4s with the SEC that we hold, all for Ionis Pharmaceuticals INC (IONS), as EVP, Corp and Development Ops. Across all of them we count 0 purchases worth $0 and 11 sales worth $4.0M reported on Form 4. In the last 12 months: 0 purchases ($0) and 6 sales ($3.6M). The largest single trade was a sale of 12,425 shares of Ionis Pharmaceuticals INC worth $897.5K, dated 2025-10-15. The first filing on our record is dated 2023-04-19 and the latest 2026-09-02.
Ionis Pharmaceuticals INC (IONS)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2023-04-18 | S, sale reported on Form 4 | 672 | $24.5K | 2023-04-19 |
| 2024-01-17 | S, sale reported on Form 4 | 4,497 | $226.7K | 2024-01-18 |
| 2024-04-16 | S, sale reported on Form 4 | 905 | $37.7K | 2024-04-17 |
| 2025-01-16 | S, sale reported on Form 4 | 5,400 | $176.6K | 2025-01-17 |
| 2025-04-16 | S, sale reported on Form 4 | 680 | $19.3K | 2025-04-17 |
| 2025-10-14 | S, sale reported on Form 4 | 11,475 | $826.5K | 2025-10-16 |
| 2025-10-15 | S, sale reported on Form 4 | 12,425 | $897.5K | 2025-10-16 |
| 2025-11-06 | S, sale reported on Form 4 | 8,000 | $609.4K | 2025-11-07 |
| 2026-01-16 | S, sale reported on Form 4 | 8,480 | $636.9K | 2026-01-20 |
| 2026-01-30 | S, sale reported on Form 4 | 6,179 | $513.0K | 2026-02-02 |
| 2026-04-16 | S, sale reported on Form 4 | 973 | $73.0K | 2026-04-17 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1970151) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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