This cluster is routine and non-informative. Insider sales at this scale (~0.07% of market cap) are typically liquidity-driven and not predictive of near-term stock movement. Monitor the next quarterly filing for any fundamental changes, but no immediate action is warranted.
Price Chart
Executive Summary
Five senior insiders at Mercury Systems, including the CEO, CFO, and CLO, sold a total of ~$3.91M in open-market sales over a 7-day window ending Aug 19, 2026. The CEO alone sold ~$2.69M, and the CFO sold ~$818K. At a $5.7B market cap, the total represents ~0.07% of market cap, which is below the 0.1% proportionality threshold for materiality. The cluster is a routine, liquidity-driven event—likely tied to 10b5-1 plans or post-blackout window selling—and carries no meaningful bearish signal per academic literature on insider sales clusters.
Key Financial Metrics
Key Facts
- 5 insiders sold shares in open-market transactions over Aug 17-20, 2026.
- CEO William Ballhaus sold 22,010 shares on Aug 20 at ~$97.67, totaling ~$2.15M.
- CFO David Farnsworth sold 6,612 shares on Aug 20 at ~$97.67, totaling ~$645.8K.
- Total cluster value: ~$3.91M, or ~0.07% of Mercury's $5.7B market cap.
- All transactions were open-market sales (code S); no buys in the cluster.
- The cluster is below the 0.1% market-cap threshold for material insider selling.
Financial Impact
~$3.91M in insider sales, representing ~0.07% of market cap
Risk Factors
- Insider selling could accelerate if fundamentals deteriorate, but current cluster is too small to signal distress.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MRCY-1787378542397 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 13, 2026 14d ago | Press Release | $75.69 | awaiting T+20 | — | $78.55 (+3.78%) |
Sep 16, 2026 5w ago | 8-K | $87.25 $76.71 | ▼ −12.08% | ▼ −15.26% | $78.55 (−9.97%) |
Aug 27, 2026 8w ago | Insider Cluster | $88.54 $80.12 | ▼ −9.51% | ▼ −9.02% | $78.55 (−11.28%) |
Aug 25, 2026 9w ago | Insider Cluster | $89.76 $83.18 | ▲ +7.34% | ▲ +7.56% | $78.55 (+12.49%) |
Aug 21, 2026 9w ago | Insider Cluster | $89.59 $83.88 | ▼ −6.37% | ▼ −7.67% | $78.55 (−12.32%) |
Aug 19, 2026 9w ago | Insider Cluster | $94.23 $85.28 | ▲ +9.50% | ▲ +9.50% | $78.55 (+16.64%) |
Aug 19, 2026 9w ago | Insider Cluster | $94.23 $85.28 | ▼ −9.50% | ▼ −9.50% | $78.55 (−16.64%) |
Aug 19, 2026 9w ago | Insider Cluster | $94.23 $85.28 | ▼ −9.50% | ▼ −9.50% | $78.55 (−16.64%) |
Aug 18, 2026 10w ago | Press Release | $101.25 $86.18 | ▼ −14.88% | ▼ −12.93% | $78.55 (−22.42%) |
Jul 28, 2026 13w ago | Press Release | $90.17 | awaiting T+20 | — | $78.55 (−12.89%) |
US Market Status
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