Brian Birchler
CIK 1970151 · EVP, Corp and Development Ops · last filed 2026-04-17
Brian Birchler is an EVP, Corp and Development Ops who has filed 20 SEC Form 4 insider transactions across 1 company since 2023. The most recent filing, for IONS, was dated Apr 17, 2026. Across all open-market trades the lifetime net is −$4.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.0M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$5.02M
1
20
-$4.04M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| IONS | EVP, Corp and Development Ops | 68,473 | $73.28 | $5.02M | -$4.04M | 20 | 2026-04-17 |
Recent Filings
20 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-04-17 | IONS | Mixed | +902 | -$73.0K | EDGAR |
| 2026-03-03 | IONS | Other (J) | +351 | $17.2K | EDGAR |
| 2026-02-02 | IONS | Mixed | +5,812 | -$513.0K | EDGAR |
| 2026-01-20 | IONS | Mixed | +11,609 | -$636.9K | EDGAR |
| 2026-01-06 | IONS | Grant (A) | — | $0 | EDGAR |
| 2025-11-07 | IONS | Sell (S) | −8,000 | -$609.4K | EDGAR |
| 2025-10-16 | IONS | Mixed | — | -$438.9K | EDGAR |
| 2025-09-03 | IONS | Other (J) | +166 | $4.6K | EDGAR |
| 2025-04-17 | IONS | Mixed | +1,195 | -$19.3K | EDGAR |
| 2025-03-04 | IONS | Other (J) | +414 | $11.7K | EDGAR |