Spencer R Berthelsen insider trades: Ionis Pharmaceuticals (IONS) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Spencer reports to the SEC
Open-market buys and sales
9 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 15, 2026 | IONS | ↓ Sell10b5-1 | 8,000 | $73.49 | $588K | Direct | Jun 16, 2026 (1d) |
| Jun 1, 2026 | IONS | ↓ Sell10b5-1 | 8,000 | $75.67 | $605K | Direct | Jun 3, 2026 (2d) |
| Jun 17, 2024 | IONS | ↓ Sell | 16,000 | $40.29 | $645K | Direct | Jun 20, 2024 (3d) |
| Jun 23, 2021 | IONS | ↓ Sell10b5-1 | 15,000 | $37.74 | $566K | Direct | Jun 25, 2021 (2d) |
| Jun 23, 2020 | IONS | ↓ Sell | 15,000 | $58.76 | $881K | Direct | Jun 25, 2020 (2d) |
| Jun 24, 2019 | IONS | ↓ Sell10b5-1 | 15,000 | $63.67 | $955K | Direct | Jun 26, 2019 (2d) |
| Jun 25, 2018 | IONS | ↓ Sell10b5-1 | 15,000 | $42.30 | $635K | Direct | Jun 25, 2018 (0d) |
| Jun 25, 2012 | ISIS | ↓ Sell10b5-1 | 10,000 | $11.57 | $116K | Direct | Jun 25, 2012 (0d) |
| May 22, 2012 | ISIS | ↓ Sell10b5-1 | 20,000 | $9.54 | $191K | Direct | May 22, 2012 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other IONS insiders
Open-market trades in the last 12 months
About Spencer R Berthelsen's insider trades
Spencer R Berthelsen is a director at Ionis Pharmaceuticals (IONS). Since May 22, 2012, Spencer has reported no open-market purchases and 9 sales worth $5.2M on SEC Form 4. In the last 12 months: 2 sales ($1.2M).
7 sales (71% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include option exercises (29 filings), grants and awards (21 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every IONS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.