Insider Cluster (2 insiders) ·Filed Mar 31, 2026
Insider cluster: 2 insiders, $736K total
Actionable Insight ▼ Bearish
Monitor for additional insider selling or downward revisions in guidance; CEO and top commercial executive selling simultaneously may signal caution ahead of key catalysts or clinical readouts.
Final — all horizons settled through T+60d
CYTK ▲ +24.70% at T+60d
SHORT call ✗ call lost -24.70% · α vs SPY -12.32% · entry $65.91 → $82.19
T+1d
+1.06%
call -1.06% · α -0.31%
$66.61
settled 6mo ago
T+5d
-0.21%
call +0.21% · α +4.16%
$65.77
settled 6mo ago
T+20d
-10.38%
call +10.38% · α +19.80%
$59.07
settled 5mo ago
T+60d
+24.70%
call -24.70% · α -12.32%
$82.19
settled 3mo ago
Price Chart
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Executive Summary
Two top executives at Cytokinetics, including CEO Robert Blum, sold shares in a coordinated 7-day window, generating $736,000 in total proceeds. The sales represent a modest but notable insider selling cluster, with both executives liquidating holdings at market prices.
Key Financial Metrics
Direction
selling
Total Value
$736.3K
Insiders
2
Key Facts
- CEO Robert Blum sold 7,500 shares for $499,725 in open-market transaction on April 1, 2026.
- EVP Andrew Callos sold 3,639 shares for $236,535 on March 31, 2026.
- Total cluster value: $736,260 in open-market sales by C-suite executives.
- Sales represent 0.009% of Cytokinetics' $8.1B market cap — modest in scale but concerning due to executive rank.
Financial Impact
$736K in insider sales over 7 days
insider ownershipinvestor sentiment
Risk Factors
- Perception of insider lack of confidence, especially from CEO during critical development phase
- Potential for negative market reaction if no offsetting positive news follows
Market Snapshot
Exchange
Nasdaq
Sector
Pharmaceutical Preparations
Investment Themes
Biotech & Drug Discovery
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-CYTK-1775075710713 |
32 reports for CYTK
88% Hit rate best @ T+20▲ +10.38%
Filters
Rows
| 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%) |
Showing 10 of 32
US Market Status
Market Closed — Opens Mon (65h 6m)
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