No material signal from this cluster. Monitor for larger insider sales (>0.5% of market cap) or a cluster of open-market purchases by C-suite executives, which would carry stronger informational content.
Price Chart
Executive Summary
Two IONIS insiders (a Director and the EVP/Chief Development Officer) sold a combined $3.59M in open-market shares after exercising stock options. The total sales represent only ~0.03% of the company's $12.2B market cap, making this a routine, liquidity-driven cluster with no material informational signal.
Key Financial Metrics
Key Facts
- Director Spencer R. Berthelsen sold 8,000 shares at $73.49 for $587,920 on June 15, 2026, following a derivative exercise.
- EVP/Chief Development Officer Holly B. Kordasiewicz sold 41,004 shares at $73.09 for $3.00M on June 12, 2026, following derivative exercises.
- Total insider sales of $3.59M represent ~0.03% of IONS' $12.2B market cap.
- Both sales were preceded by option exercises, consistent with routine tax- or liquidity-driven transactions.
Financial Impact
Insider sales of $3.59M are trivial relative to $12.2B market cap (0.03%).
Risk Factors
- Insider sales could accelerate if the stock continues to appreciate, but current levels are routine.
- Option exercises may increase share count modestly, but the impact is negligible.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-IONS-1781645227794 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 23, 2026 3d ago | 8-K | $42.93 | awaiting T+20 | — | $43.42 (+1.14%) |
Oct 21, 2026 5d ago | 8-K | $43.91 | awaiting T+20 | — | $43.42 (−1.12%) |
Oct 21, 2026 5d ago | Institutional Cluster | $43.91 | awaiting T+20 | — | $43.42 (−1.12%) |
Sep 23, 2026 4w ago | 8-K | $43.93 $44.27 | ▲ +0.77% | ▲ +0.09% | $43.42 (−1.16%) |
Sep 4, 2026 7w ago | 8-K | $56.71 $44.00 | ▲ +22.41% | ▲ +24.13% | $43.42 (+23.44%) |
Sep 4, 2026 7w ago | 8-K | $58.09 $43.50 | ▼ −25.12% | ▼ −25.72% | $43.42 (−25.25%) |
Jul 31, 2026 12w ago | Insider Buy | $54.49 $60.36 | ▲ +10.77% | ▲ +9.53% | $43.42 (−20.32%) |
Jul 29, 2026 12w ago | 8-K | $54.04 $63.36 | ▲ +17.25% | ▲ +12.23% | $43.42 (−19.65%) |
Jul 9, 2026 15w ago | 8-K | $58.25 $56.56 | ▼ −2.90% | ▼ −5.33% | $43.42 (−25.46%) |
Jul 9, 2026 15w ago | Insider Cluster | $58.25 $56.56 | ▼ −2.90% | ▼ −5.33% | $43.42 (−25.46%) |
US Market Status
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