The cluster shows broad insider buying across C-suite, but the dollar amounts are too small to signal a material event. Monitor upcoming earnings or 10-Q for any fundamental changes that might explain the buying. The director's sale is routine and not concerning at this size.
Price Chart
Executive Summary
Six MMSI insiders traded in a cluster from May 4-11, 2026, with five executives (including the CEO, CFO, and Chief Legal Officer) making open-market purchases totaling $573K, while one director sold $313K. The net buying direction and involvement of top C-suite insiders is notable, but the total dollar value of purchases is only ~0.02% of MMSI's $3.6B market cap, making this a routine cluster with limited material impact.
Key Financial Metrics
Key Facts
- Five insiders purchased shares: CEO Aronson ($121K), CFO Parra ($92K), Chief Legal Officer Lloyd ($125K), Chief HR Officer Voigt ($136K), and Chief Commercial Officer Smith ($99K)
- Director Ward sold 5,000 shares for $313K
- Total purchase value of $573K represents ~0.016% of MMSI's $3.6B market cap
- Net direction is mixed: $573K in purchases vs $313K in sales
- All purchases were open-market transactions, not option exercises or grants
Financial Impact
Total insider purchases of $573K and sales of $313K — both immaterial relative to $3.6B market cap
Risk Factors
- Historical calibration shows MMSI reports have underperformed at T+20 (0% win rate, -10.97% avg return), suggesting the stock may face headwinds regardless of insider activity
- Director selling alongside insider buying creates mixed signal — no clear directional read-through
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MMSI-1778692788611 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Jul 2, 2026 13w ago | Press Release | $71.09 $87.00 | ▲ +22.38% | ▲ +18.81% | $86.21 (+21.27%) |
May 5, 2026 21w ago | Insider Cluster | $60.44 $83.35 | ▲ +37.91% | ▲ +35.17% | $86.21 (+42.64%) |
May 5, 2026 21w ago | Insider Cluster | $60.44 $83.35 | ▲ +37.91% | ▲ +35.17% | $86.21 (+42.64%) |
Apr 30, 2026 22w ago | Press Release | $62.01 $78.29 | ▲ +26.25% | ▲ +23.18% | $86.21 (+39.03%) |
Apr 16, 2026 24w ago | Court Ruling | $70.10 $73.26 | ▲ +4.51% | ▼ −2.54% | $86.21 (+22.98%) |
Apr 13, 2026 24w ago | 8-K | $70.54 $71.46 | ▲ +1.30% | ▼ −7.22% | $86.21 (+22.21%) |
Feb 24, 2026 31w ago | 8-K | $79.23 $64.49 | ▼ −18.60% | ▼ −25.55% | $86.21 (+8.81%) |
US Market Status
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