Brian Birchler
CIK 1970151 · EVP, Corp and Development Ops · last filed 2026-04-17
"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.
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Disclosed Exposure
$5.02M
Companies
1
Total Filings
20
Lifetime Open-Market Net
-$4.04M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 2
20 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-01-17 | IONS | Mixed | +8,883 | -$176.6K | EDGAR |
| 2025-01-06 | IONS | Grant (A) | — | $0 | EDGAR |
| 2024-09-04 | IONS | Other (J) | +12 | $464 | EDGAR |
| 2024-04-17 | IONS | Mixed | +970 | -$37.7K | EDGAR |
| 2024-03-04 | IONS | Other (J) | +604 | $20.8K | EDGAR |
| 2024-01-18 | IONS | Mixed | +7,583 | -$226.7K | EDGAR |
| 2024-01-17 | IONS | Grant (A) | — | $0 | EDGAR |
| 2024-01-04 | IONS | Grant (A) | — | $0 | EDGAR |
| 2024-01-02 | IONS | Mixed | +471 | -$12.6K | EDGAR |
| 2023-04-19 | IONS | Mixed | +1,203 | -$24.5K | EDGAR |
Showing 11–20 of 20
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Page 2 of 2
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.