Insider Cluster (8 insiders) ·Filed May 21, 2026
Insider cluster: 8 insiders, $2.7M total
Actionable Insight • Neutral
The insider selling cluster is small and likely driven by portfolio diversification or tax planning. No material negative signal. Monitor the next filing for any change in pattern, but no immediate action needed.
Final — all horizons settled through T+60d ⚠ clustered
ACLS ▼ -13.73% at T+60d
NEUTRAL call ✗ call lost -13.73% · α vs SPY -16.92% · entry $156.94 → $135.39
T+1d
+4.67%
call +4.67% · α +4.08%
$164.27
settled 4mo ago
T+5d
-4.15%
call -4.15% · α -5.81%
$150.42
settled 4mo ago
T+20d
+9.68%
call +9.68% · α +11.09%
$172.13
settled 3mo ago
T+60d
-13.73%
call -13.73% · α -16.92%
$135.39
settled 6w ago
Price Chart
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Executive Summary
A cluster of eight Axcelis insiders sold approximately $2.66M in shares over the past week, representing about 0.06% of market cap. The selling is small relative to company size and likely routine diversification, not a bearish signal.
Key Financial Metrics
Direction
selling
Total Value
$2.7M
Insiders
8
Key Facts
- 8 insiders sold $2.66M in open-market transactions over a 7-day window
- Total sales represent ~0.06% of ACLS's $4.6B market cap
- No C-suite insider sold material amounts; CEO transactions were tax-withholding only
Financial Impact
Total insider selling of $2.66M, or 0.058% of market cap
Risk Factors
- Insider selling could indicate negative sentiment, but the scale here is minimal
- Potential for additional selling if the stock rallies
Market Snapshot
Exchange
Nasdaq
Sector
Special Industry Machinery, NEC
Analyst Consensus
58% bullish (12 analysts)
Investment Themes
Industrials & Manufacturing
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ACLS-1779397590787 |
11 reports for ACLS
67% Hit rate best @ T+60▲ +23.75%
Filters
Rows
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 9, 2026 7w ago | Institutional Cluster | $132.65 $119.57 | ▼ −9.86% | ▼ −8.95% | $147.04 (+10.85%) |
Jun 15, 2026 15w ago | Institutional Cluster | $191.60 $136.56 | ▼ −28.73% | ▼ −27.98% | $147.04 (−23.26%) |
Jun 4, 2026 17w ago | Insider Cluster | $147.16 $139.97 | ▼ −4.89% | ▼ −6.75% | $147.04 (−0.08%) |
May 28, 2026 18w ago | Insider Cluster | $150.41 $176.13 | ▲ +17.10% | ▲ +18.89% | $147.04 (−2.24%) |
May 26, 2026 18w ago | Insider Cluster | $157.91 $180.70 | ▲ +14.43% | ▲ +16.33% | $147.04 (−6.88%) |
May 22, 2026 18w ago | Insider Cluster | $164.27 $167.14 | ▲ +1.75% | ▲ +3.70% | $147.04 (−10.49%) |
May 21, 2026 19w ago | Insider Cluster | $156.94 $172.13 | ▲ +9.68% | ▲ +11.09% | $147.04 (−6.31%) |
May 15, 2026 19w ago | Insider Cluster | $149.56 $187.53 | ▲ +25.39% | ▲ +24.65% | $147.04 (−1.68%) |
May 15, 2026 19w ago | Insider Cluster | $146.24 $176.85 | ▲ +20.93% | ▲ +19.35% | $147.04 (+0.55%) |
May 15, 2026 19w ago | Insider Cluster | $146.24 $176.85 | ▲ +20.93% | ▲ +19.35% | $147.04 (+0.55%) |
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US Market Status
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