// company-profile
Ionis Pharmaceuticals Inc Insider Trading
IONSEvery SEC Form 4 insider trading filing for Ionis Pharmaceuticals Inc (IONS) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.
curl "https://api.form4api.com/v1/transactions?ticker=IONS" -H "X-Api-Key: YOUR_API_KEY"// activity-summary
Recent insider activity is bullish. Over the last 30 days, 8 insiders purchased shares (net $1.1M). Buying was led by Hayden Michael R.
// 90-day insight
Over the last 90 days, Ionis Pharmaceuticals Inc insiders bought $7.4M across 36 transactions with no open-market sales.
- Most active insider: Monia Brett P with 6 transactions totaling $9.2M.
- Largest single sale: $4.0M by Monia Brett P on Jun 26, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Ionis Pharmaceuticals Inc as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 31, 2026 | Hayden Michael R | IONS | Purchase | 5,000 | $51.60 | $258K |
| Jul 30, 2026 | Hayden Michael R | IONS | Purchase | 15,000 | $53.38 | $801K |
| Jul 15, 2026 | BERTHELSEN SPENCER R | IONS | Option Exercise | 5,220 | $0.00 | $0K |
| Jul 15, 2026 | HERMAN JOAN E | IONS | Option Exercise | 5,220 | $0.00 | $0K |
| Jul 15, 2026 | BERTHELSEN SPENCER R | IONS | Option Exercise | 5,220 | $0.00 | $0K |
45 more transactions hidden
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