SPENCER R BERTHELSEN
CIK 1181548 · last filed 2026-06-03
SPENCER R BERTHELSEN is a corporate insider who has filed 38 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for IONS, was dated Jun 3, 2026. Across all open-market trades the lifetime net is −$4.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $11.4M 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.
$11.44M
2
38
-$4.59M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| IONS | Director | 156,083 | $73.28 | $11.44M | -$4.29M | 25 | 2026-06-03 |
| IONIS PHARMACEUTICALS INC (ISIS) Delisted | Director | 61,913 | — | — | -$306.5K | 13 | 2015-07-02 |
Recent Filings
38 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-03 | IONS | Mixed | — | -$410.0K | EDGAR |
| 2025-07-17 | IONS | Exer (M) | +4,079 | $0 | EDGAR |
| 2025-07-02 | IONS | Grant (A) | — | $0 | EDGAR |
| 2024-07-17 | IONS | Exer (M) | +4,677 | $0 | EDGAR |
| 2024-07-03 | IONS | Grant (A) | — | $0 | EDGAR |
| 2024-06-20 | IONS | Mixed | — | -$76.2K | EDGAR |
| 2023-07-19 | IONS | Exer (M) | +7,110 | $0 | EDGAR |
| 2023-07-06 | IONS | Grant (A) | — | $0 | EDGAR |
| 2023-06-22 | IONS | Exer (M) | +11,250 | $320.3K | EDGAR |
| 2022-07-19 | IONS | Exer (M) | +7,998 | $0 | EDGAR |