C Frank Bennett 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 C reports to the SEC
Open-market buys and sales
72 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jul 7, 2026 | IONS | ↓ Sell10b5-1 | 15,000 | $85.46 | $1.3M | by Trust | Jul 9, 2026 (2d) |
| Jul 7, 2026 | IONS | ↓ Sell10b5-1 | 5,536 | $83.58 | $463K | Direct | Jul 9, 2026 (2d) |
| Mar 3, 2026 | IONS | ↓ Sell10b5-1 | 85,089 | $79.23 | $6.7M | Direct | Mar 5, 2026 (2d) |
| Feb 2, 2026 | IONS | ↓ Sell | 85,089 | $82.93 | $7.1M | Direct | Feb 4, 2026 (2d) |
| Jan 30, 2026 | IONS | ↓ Sell | 5,885 | $82.95 | $488K | Direct | Feb 2, 2026 (3d) |
| Jan 16, 2026 | IONS | ↓ Sell | 8,977 | $75.15 | $675K | Direct | Jan 20, 2026 (4d) |
| Sep 5, 2025 | IONS | ↓ Sell10b5-1 | 6,000 | $59.60 | $358K | Direct | Sep 9, 2025 (4d) |
| Sep 3, 2025 | IONS | ↓ Sell10b5-1 | 38,909 | $59.14 | $2.3M | Direct | Sep 4, 2025 (1d) |
| Aug 18, 2025 | IONS | ↓ Sell10b5-1 | 10,000 | $43.98 | $440K | Direct | Aug 20, 2025 (2d) |
| Jan 31, 2025 | IONS | ↓ Sell | 1,327 | $32.46 | $43K | Direct | Feb 3, 2025 (3d) |
| Jan 16, 2025 | IONS | ↓ Sell | 6,752 | $32.90 | $222K | Direct | Jan 17, 2025 (1d) |
| Feb 2, 2024 | IONS | ↓ Sell | 1,853 | $49.52 | $92K | Direct | Feb 2, 2024 (0d) |
| Jan 17, 2024 | IONS | ↓ Sell | 6,745 | $50.42 | $340K | Direct | Jan 18, 2024 (1d) |
| Dec 21, 2023 | IONS | ↓ Sell | 22,613 | $49.39 | $1.1M | Direct | Dec 22, 2023 (1d) |
| Dec 14, 2023 | IONS | ↓ Sell | 22,612 | $49.58 | $1.1M | Direct | Dec 18, 2023 (4d) |
| Sep 28, 2023 | IONS | ↓ Sell10b5-1 | 4,460 | $46.50 | $207K | Direct | Sep 29, 2023 (1d) |
| Feb 6, 2023 | IONS | ↓ Sell | 1,813 | $40.57 | $74K | Direct | Feb 7, 2023 (1d) |
| Jan 18, 2023 | IONS | ↓ Sell | 6,978 | $38.89 | $271K | Direct | Jan 19, 2023 (1d) |
| Dec 4, 2020 | IONS | ↓ Sell10b5-1 | 7,947 | $51.04 | $406K | Direct | Dec 8, 2020 (4d) |
| Dec 2, 2020 | IONS | ↓ Sell10b5-1 | 7,053 | $51.32 | $362K | Direct | Dec 4, 2020 (2d) |
| Nov 3, 2020 | IONS | ↓ Sell10b5-1 | 15,000 | $46.77 | $702K | Direct | Nov 5, 2020 (2d) |
| Jun 25, 2020 | IONS | ↓ Sell10b5-1 | 15,000 | $59.77 | $897K | Direct | Jun 29, 2020 (4d) |
| Feb 1, 2019 | IONS | ↓ Sell10b5-1 | 9,013 | $58.29 | $525K | Direct | Feb 5, 2019 (4d) |
| Nov 1, 2018 | IONS | ↓ Sell10b5-1 | 12,500 | $49.54 | $619K | Direct | Nov 1, 2018 (0d) |
| Aug 8, 2018 | IONS | ↓ Sell10b5-1 | 12,500 | $45.00 | $563K | Direct | Aug 9, 2018 (1d) |
| May 11, 2018 | IONS | ↓ Sell10b5-1 | 12,500 | $45.00 | $563K | Direct | May 11, 2018 (0d) |
| Jan 16, 2018 | IONS | ↓ Sell | 2,696 | $51.76 | $140K | Direct | Jan 17, 2018 (1d) |
| Oct 18, 2017 | IONS | ↓ Sell10b5-1 | 12,250 | $65.00 | $796K | Direct | Oct 20, 2017 (2d) |
| Jul 24, 2017 | IONS | ↓ Sell10b5-1 | 10,000 | $59.29 | $593K | Direct | Jul 26, 2017 (2d) |
| Mar 3, 2017 | IONS | ↓ Sell10b5-1 | 5,000 | $55.00 | $275K | Direct | Mar 6, 2017 (3d) |
| Jan 17, 2017 | IONS | ↓ Sell | 2,421 | $46.29 | $112K | Direct | Jan 18, 2017 (1d) |
| Nov 9, 2016 | IONS | ↓ Sell10b5-1 | 22,805 | $37.56 | $857K | Direct | Nov 14, 2016 (5d) |
| Nov 7, 2016 | IONS | ↓ Sell10b5-1 | 5,000 | $34.00 | $170K | Direct | Nov 9, 2016 (2d) |
| Jan 19, 2016 | IONS | ↓ Sell | 2,110 | $41.46 | $87K | Direct | Jan 19, 2016 (0d) |
| Dec 16, 2015 | ISIS | ↓ Sell10b5-1 | 7,909 | $57.41 | $454K | Direct | Dec 17, 2015 (1d) |
| Nov 10, 2015 | ISIS | ↓ Sell10b5-1 | 5,000 | $64.00 | $320K | Direct | Nov 12, 2015 (2d) |
| Nov 6, 2015 | ISIS | ↓ Sell10b5-1 | 5,000 | $56.00 | $280K | Direct | Nov 9, 2015 (3d) |
| Mar 24, 2015 | ISIS | ↓ Sell10b5-1 | 15,000 | $70.61 | $1.1M | Direct | Mar 25, 2015 (1d) |
| Jan 16, 2015 | ISIS | ↓ Sell | 1,518 | $67.96 | $103K | Direct | Jan 20, 2015 (4d) |
| Aug 27, 2014 | ISIS | ↓ Sell10b5-1 | 5,000 | $40.53 | $203K | Direct | Aug 28, 2014 (1d) |
| Jun 23, 2014 | ISIS | ↓ Sell | 11,200 | $36.78 | $412K | Direct | Jun 25, 2014 (2d) |
| Jan 16, 2014 | ISIS | ↓ Sell | 804 | $47.08 | $38K | Direct | Jan 17, 2014 (1d) |
| Dec 5, 2013 | ISIS | ↓ Sell10b5-1 | 10,000 | $39.92 | $399K | Direct | Dec 6, 2013 (1d) |
| Sep 19, 2013 | ISIS | ↓ Sell10b5-1 | 10,000 | $35.02 | $350K | Direct | Sep 23, 2013 (4d) |
| Sep 9, 2013 | ISIS | ↓ Sell10b5-1 | 10,000 | $30.23 | $302K | Direct | Sep 11, 2013 (2d) |
| May 1, 2013 | ISIS | ↓ Sell10b5-1 | 59,945 | $22.38 | $1.3M | Direct | May 2, 2013 (1d) |
| Jan 16, 2013 | ISIS | ↓ Sell | 309 | $14.00 | $4K | Direct | Jan 17, 2013 (1d) |
| Jul 9, 2012 | ISIS | ↓ Sell10b5-1 | 10,500 | $13.51 | $142K | Direct | Jul 11, 2012 (2d) |
| Jul 3, 2012 | ISIS | ↓ Sell10b5-1 | 6,000 | $12.91 | $77K | Direct | Jul 3, 2012 (0d) |
| Dec 21, 2011 | ISIS | ↓ Sell10b5-1 | 1,555 | $6.92 | $11K | Direct | Dec 22, 2011 (1d) |
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 C Frank Bennett's insider trades
C Frank Bennett is EVP, Chief Scientific Officer at Ionis Pharmaceuticals (IONS). Since Feb 9, 2006, C has reported no open-market purchases and 72 sales worth $38.9M on SEC Form 4. In the last 12 months: 6 sales ($16.7M).
54 sales (68% 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 (65 filings), other transactions (45 filings), grants and awards (39 filings), shares withheld for taxes (4 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.