Monitor for continued insider selling in coming weeks; while the cluster is small, insider activity at earnings time often signals near-term profit-taking. The positive launch data supports the stock, but further sales from executives could weigh on sentiment.
Price Chart
Executive Summary
Multiple CYTK insiders, including CFO and CCO, sold shares totaling $4.53M on the same day as Q1 2026 earnings release showing strong MYQORZO launch. The cluster is small relative to market cap (0.055%) but notable for involving key executives and timing with positive news.
Key Financial Metrics
Key Facts
- 4 insiders sold shares on May 5, 2026, including CFO Lee Sung ($1.84M) and CCO Andrew Callos ($875K)
- Total open-market sales: $4.53M, representing 0.055% of $8.2B market cap
- Sales occurred on same day as Q1 earnings: MYQORZO launch revenue $4.8M, ACACIA-HCM trial positive
- Directors Henderson and Wierenga also sold shares alongside derivative exercises
Financial Impact
Insiders sold $4.53M in open-market transactions, ~0.055% of market cap
Risk Factors
- Further insider selling could dampen investor sentiment
- Commercial execution of MYQORZO launch may face headwinds
- Regulatory or safety issues with aficamten in nHCM
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-CYTK-1778012475448 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 15, 2026 17d ago | Insider Cluster | $69.31 $67.59 | ▲ +2.48% | ▲ +4.59% | $65.60 (+5.35%) |
Sep 11, 2026 20d ago | Insider Cluster | $72.45 $67.56 | ▼ −6.75% | ▼ −6.86% | $65.60 (−9.45%) |
Sep 1, 2026 4w ago | Insider Cluster | $71.40 $74.11 | ▲ +3.80% | ▲ +3.71% | $65.60 (−8.12%) |
Aug 31, 2026 4w ago | Insider Cluster | $71.40 $74.11 | ▲ +3.80% | ▲ +3.71% | $65.60 (−8.12%) |
Aug 29, 2026 4w ago | Press Release | $70.91 $75.35 | ▲ +6.26% | ▲ +6.40% | $65.60 (−7.49%) |
Aug 28, 2026 5w ago | 8-K | $72.09 $72.72 | ▲ +0.87% | ▲ +0.76% | $65.60 (−9.00%) |
Jul 30, 2026 9w ago | Insider Cluster | $80.42 $81.37 | ▲ +1.18% | ▼ −2.44% | $65.60 (−18.43%) |
Jul 27, 2026 9w ago | Insider Cluster | $80.62 $77.13 | ▼ −4.33% | ▼ −5.40% | $65.60 (−18.63%) |
Jul 23, 2026 10w ago | Press Release | $80.74 $80.42 | ▼ −0.40% | ▼ −0.77% | $65.60 (−18.75%) |
Jul 14, 2026 11w ago | Insider Cluster | $81.93 $79.11 | ▼ −3.44% | ▼ −2.15% | $65.60 (−19.93%) |
US Market Status
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