The cluster is dominated by a single director sale (Chung) that is large in absolute dollars but tiny relative to market cap ($27.4B). CFO and SVP sales are immaterial. No C-suite cluster selling pattern. Given the stock's strong post-earnings run (closed at ~$378, up from ~$338 pre-earnings), the director's sale likely reflects routine portfolio diversification at elevated prices. Per the literature, insider sales are weak predictors — especially when clustered near a strong earnings beat. Monitor for any C-suite acceleration but no immediate bearish signal.
Price Chart
Executive Summary
A cluster of insider sales at MACOM Technology Solutions (MTSI) totaling ~$17.3M over the past week follows the company's strong Q2 FY2026 earnings beat and raised guidance. The largest sale — $16.4M by Director Peter Chung — accounts for 95% of the cluster's dollar value and occurred at ~$378.20, near multi-year highs after the stock surged post-earnings. While the dollar amount is material in absolute terms, it represents only ~0.06% of MTSI's $27.4B market cap, falling below the 0.1% proportionality threshold for materiality. The cluster is dominated by a single director's sale, with CFO and SVP sales being very small ($176K and $106K).
Key Financial Metrics
Key Facts
- Cluster includes 8 transactions over 7 days; 3 open-market sales totaling ~$16.6M plus grants/gifts
- Director Peter Chung sold 43,268 shares at ~$378.20 for ~$16.4M on May 14
- CFO Kober sold 500 shares at ~$352.79 for ~$176K on May 18
- SVP Hwang sold 300 shares at ~$353.32 for ~$106K on May 18
- Total cluster open-market sales of ~$16.6M represent ~0.06% of MTSI's $27.4B market cap
- Sales occurred 1-2 weeks after MTSI reported Q2 FY2026 revenue of $289M (+22.5% YoY) and raised Q3 guidance to $331-339M
- Adjusted EPS of $1.09 beat the prior quarter's $1.02 and was above the raised guidance range
Financial Impact
Total open-market sales of ~$16.6M, or ~0.06% of market cap — below the 0.1% materiality threshold.
Risk Factors
- Director Chung's $16.4M sale could signal an early departure or personal liquidity event; monitor for follow-on filings
- Stock has rallied significantly post-earnings; mean reversion risk exists regardless of insider activity
- Although not material by proportionality, large absolute insider sales at cycle highs can amplify existing bearish sentiment
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MTSI-1779312188496 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 6, 2026 8w ago | 8-K | $301.64 $259.95 | ▼ −13.82% | ▼ −14.42% | $325.99 (+8.07%) |
Jun 9, 2026 16w ago | Press Release | $358.72 $304.82 | ▼ −15.03% | ▼ −16.47% | $325.99 (−9.12%) |
May 29, 2026 17w ago | 144 | $353.79 $380.37 | ▲ +7.51% | ▲ +8.81% | $325.99 (−7.86%) |
May 27, 2026 18w ago | 144 | $400.66 $390.19 | ▼ −2.61% | ▼ −0.71% | $325.99 (−18.64%) |
May 18, 2026 19w ago | Insider Cluster | $358.98 $367.11 | ▲ +2.26% | ▲ +1.28% | $325.99 (−9.19%) |
May 18, 2026 19w ago | Insider Cluster | $358.98 $367.11 | ▲ +2.26% | ▲ +1.28% | $325.99 (−9.19%) |
May 18, 2026 19w ago | Insider Cluster | $358.98 $367.11 | ▲ +2.26% | ▲ +1.28% | $325.99 (−9.19%) |
May 18, 2026 19w ago | Insider Cluster | $380.45 $395.70 | ▲ +4.01% | ▲ +3.68% | $325.99 (−14.31%) |
May 18, 2026 19w ago | Insider Cluster | $358.98 $367.11 | ▲ +2.26% | ▲ +1.28% | $325.99 (−9.19%) |
May 15, 2026 19w ago | Insider Cluster | $356.25 $368.32 | ▲ +3.39% | ▲ +1.81% | $325.99 (−8.49%) |
US Market Status
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