Monitor CTO Arvind's ongoing option exercises and share sales for pattern of sustained divestment; if selling accelerates above 0.1% of market cap in a single week, consider it a meaningful signal. Until then, the insider activity is routine.
Price Chart
Executive Summary
Three Rubrik insiders (two directors and the CTO) filed Form 4 sales totaling $150K in a one-week window. Separately, the CTO executed a much larger sell cluster of ~$3.44M in the following days, which dominates the insider activity picture. However, all selling represents less than 0.02% of the $17.9B market cap — de minimis from a proportionality standpoint. The cluster carries no meaningful directional signal given the trivial dollar amounts and the known weak predictive value of insider sell clusters.
Key Financial Metrics
Key Facts
- Three insiders sold shares totaling $150K: Director Thompson ($75K), Director Wassenaar ($59K), CTO Arvind ($16K)
- Cross-filing context reveals CTO Arvind separately sold ~$3.44M in open-market shares on July 6-8, paired with derivative conversions
- Total insider selling (filed cluster + cross-filing) is <0.02% of the $17.9B market cap
Financial Impact
Negligible — total open-market selling of ~$3.59M (including cross-filing context) is ~0.02% of market cap
Risk Factors
- CTO Arvind's concentrated selling could indicate reduced confidence, though sales appear tied to derivative conversions
- Further insider sales from other C-suite members would amplify the bearish read
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-RBRK-1783551719622 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 11, 2026 21d ago | Insider Cluster | $86.65 $106.71 | ▲ +23.15% | ▲ +23.37% | $118.58 (+36.85%) |
Sep 4, 2026 28d ago | Insider Cluster | $93.67 $100.20 | ▲ +6.97% | ▲ +8.18% | $118.58 (+26.59%) |
Aug 28, 2026 4w ago | 3 | $93.04 $91.44 | ▼ −1.72% | ▼ −1.58% | $118.58 (+27.45%) |
Aug 5, 2026 8w ago | Insider Cluster | $84.60 $105.09 | ▲ +24.22% | ▲ +23.01% | $118.58 (+40.17%) |
Aug 4, 2026 8w ago | Insider Cluster | $84.81 $96.73 | ▲ +14.05% | ▲ +13.70% | $118.58 (+39.82%) |
Jul 16, 2026 11w ago | Insider Cluster | $79.82 $72.63 | ▼ −9.01% | ▼ −7.34% | $118.58 (+48.56%) |
Jul 14, 2026 11w ago | Insider Cluster | $88.05 $78.18 | ▼ −11.21% | ▼ −9.91% | $118.58 (+34.67%) |
Jul 13, 2026 11w ago | 144 | $88.05 $78.18 | ▼ −11.21% | ▼ −9.91% | $118.58 (+34.67%) |
Jul 8, 2026 12w ago | Insider Cluster | $88.75 $79.82 | ▼ −10.06% | ▼ −9.93% | $118.58 (+33.61%) |
Jul 1, 2026 13w ago | Insider Cluster | $83.64 $88.75 | ▲ +6.11% | ▲ +5.18% | $118.58 (+41.77%) |
US Market Status
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