Monitor for any 8-K filing that could explain why a broad set of insiders (including the CEO) chose to sell in the same window. If no negative catalyst emerges within two weeks, treat the cluster as routine portfolio management and ignore for trading decisions.
Price Chart
Executive Summary
A cluster of 8 UMBF insiders sold a total of $3.34M in open-market transactions over a week, dominated by Chairman & CEO J. Mariner Kemper ($2.24M) and EVP Uma Wilson ($613K). The sales are small relative to the $11B market cap (~0.03%) and are likely driven by routine portfolio rebalancing or tax planning, with no public negative catalyst from the company.
Key Financial Metrics
Key Facts
- 8 insiders sold a total of ~$3.34M in open-market sales from Jul 31–Aug 6, 2026
- Chairman & CEO J. Mariner Kemper sold ~$2.24M and also gifted 9,761 shares (non-cash)
- EVP Uma Wilson sold $613K; other C-suite sells were smaller
- Total open-market sale value is ~0.03% of UMBF's $11B market cap – well below the 0.1% materiality threshold
- No open-market purchases were made by any insider in the cluster
- The company operates in national commercial banking with 84% analyst bullish consensus
Financial Impact
Total insider sales of ~$3.34M represent ~0.03% of market cap, immaterial in size
Risk Factors
- CEO selling ~$2.24M could be misinterpreted as a negative signal by the market, causing short-term selling pressure
- No insider purchases to offset the selling creates a one-sided bearish signal in sentiment, despite the small dollar amount
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-UMBF-1786144544065 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 3, 2026 7w ago | Insider Cluster | $143.76 $129.80 | ▼ −9.71% | ▼ −10.31% | $134.40 (−6.51%) |
Sep 1, 2026 7w ago | 8-K | $141.91 $130.01 | ▼ −8.39% | ▼ −8.30% | $134.40 (−5.30%) |
Aug 18, 2026 9w ago | Insider Cluster | $146.10 $134.76 | ▼ −7.76% | ▼ −6.92% | $134.40 (−8.01%) |
Aug 7, 2026 11w ago | Insider Cluster | $146.11 $142.55 | ▼ −2.44% | ▼ −1.52% | $134.40 (−8.02%) |
Aug 6, 2026 11w ago | Insider Cluster | $145.60 $143.76 | ▲ +1.26% | ▲ +0.87% | $134.40 (+7.70%) |
Aug 4, 2026 11w ago | Insider Cluster | $146.81 $141.91 | ▼ −3.34% | ▼ −2.74% | $134.40 (−8.46%) |
Jul 31, 2026 12w ago | Insider Cluster | $147.04 $141.63 | ▼ −3.68% | ▼ −4.92% | $134.40 (−8.60%) |
US Market Status
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