The insider selling is too small in relative terms to warrant any trading response. No other cross-filings (e.g., earnings, offerings, or restructuring) accompany this cluster. Monitor next quarterly filing for any change in business trajectory, but this cluster alone is not a signal.
Price Chart
Executive Summary
Two AMPX insiders (CEO and a director) sold shares totaling $807K over a one-week window, representing a trivial 0.035% of the $2.3B market cap. These sales are routine in size and pattern — the director's $765K sale is modest, and the CEO's $42K sale is negligible — and do not signal material negative sentiment.
Key Financial Metrics
Key Facts
- Two insiders sold shares between June 2-9, 2026: Director Donald R. Dixon sold 40,000 shares ($765K) and CEO Thomas M. Stepien sold 2,000 shares ($42K).
- Total sale value of $807K equals ~0.035% of AMPX's $2.3B market cap, well below the 0.1% threshold for materiality.
- This cluster is consistent with the recent 30-day insider activity (9 sells totaling $3.6M), indicating ongoing routine liquidation rather than an abrupt change.
Financial Impact
Two open-market sales totaling $807K, 0.035% of market cap.
Risk Factors
- If future filings reveal negative fundamental news (e.g., earnings miss, guidance cut), this cluster could be retroactively interpreted as early selling.
- Director Dixon continues to hold a substantial position — his remaining stake is not disclosed in this filing — but his partial sale is not alarming.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-AMPX-1781215133830 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 9, 2026 18d ago | S-3ASR | $8.87 | awaiting T+60 | — | $8.88 (+0.11%) |
Sep 25, 2026 4w ago | 8-K | $9.60 | awaiting T+60 | — | $8.88 (−7.50%) |
Aug 25, 2026 9w ago | Insider Cluster | $10.20 | awaiting T+60 | — | $8.88 (−12.94%) |
Aug 13, 2026 10w ago | 8-K | $12.51 | awaiting T+60 | — | $8.88 (−29.02%) |
Aug 1, 2026 12w ago | Institutional Cluster | $10.12 $8.78 | ▲ +13.29% | ▲ +15.07% | $8.88 (+12.25%) |
Jun 11, 2026 19w ago | Insider Cluster | $16.31 $10.39 | ▼ −36.30% | ▼ −39.56% | $8.88 (−45.55%) |
Jun 11, 2026 19w ago | Institutional Cluster | $17.10 $9.89 | ▼ −42.16% | ▼ −46.56% | $8.88 (−48.07%) |
Jun 8, 2026 20w ago | 144 | $4.84 | awaiting T+60 | — | $8.88 (−83.47%) |
May 28, 2026 21w ago | 144 | — | awaiting T+60 | — | — |
May 28, 2026 21w ago | Insider Cluster | $20.28 $9.86 | ▲ +51.38% | ▲ +52.56% | $8.88 (+56.21%) |
US Market Status
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