Insider Cluster (5 insiders) ·Filed May 15, 2026

ACLS

AXCELIS TECHNOLOGIES INC
NEUTRAL
Impact 2/10
Horizondays Processed4mo ago
Insider cluster: 4 insiders, $1.6M total
Actionable Insight • Neutral

Insider selling is minimal and routine following earnings. Monitor for any acceleration in selling volume or change in pattern; no immediate action warranted.

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
ACLS ▼ -2.80% at T+60d
NEUTRAL call ✗ call lost -2.80% · α vs SPY -7.65% · entry $146.24 → $142.14
Entry anchored
May 15, 2026
via day open
T+1d
-2.06%
call -2.06% · α -1.41%
$143.23
settled 5mo ago
T+5d
+12.33%
call +12.33% · α +10.71%
$164.27
settled 4mo ago
T+20d
+20.93%
call +20.93% · α +19.35%
$176.85
settled 4mo ago
T+60d
-2.80%
call -2.80% · α -7.65%
$142.14
settled 7w ago

Price Chart

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Executive Summary

Multiple insiders sold shares totaling $1.58M within a week after Q1 2026 earnings, but the amount is trivial (0.03% of $5B market cap). The selling follows mixed earnings (revenue up slightly, EPS down sharply) and is likely routine post-earnings liquidity or 10b5-1 plan activity. No significant directional signal.

Key Financial Metrics

Direction
selling
Total Value
$1.6M
Insiders
5

Key Facts

  • 5 insiders (3 EVPs, 1 VP, 1 Director) sold open-market shares totaling $1.58M over May 12-14, 2026.
  • Sales represent ~0.03% of $5.0B market cap — immaterial.
  • Cluster occurred 5-7 days after Q1 2026 earnings (May 7) which showed revenue growth but GAAP EPS decline.
  • Guidance for Q2 2026: revenue ~$205M, non-GAAP EPS ~$0.90.

Financial Impact

Total insider sales of $1.58M, negligible relative to market cap.

Risk Factors

  • No material risk from this cluster; company fundamentals and merger with Veeco (expected H2 2026) are the primary drivers.

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.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-ACLS-1778879157420
11 reports for ACLS
Performance horizon
67% Hit rate 2 of 3 directional calls best @ T+60▲ +23.75%May 6, 2026
Filters
Rows
Reports for ACLS — sortable, filterable
TypeNow
Aug 9, 2026
7w ago
Institutional Cluster
BULLISH ★ 5/10
$132.65 $119.57▼ −9.86%▼ −8.95%$147.77 (+11.40%)
Jun 15, 2026
15w ago
Institutional Cluster
BULLISH ★ 6/10
$191.60 $136.56▼ −28.73%▼ −27.98%$147.77 (−22.88%)
Jun 4, 2026
17w ago
Insider Cluster
NEUTRAL ★ 3/10
$147.16 $139.97▼ −4.89%▼ −6.75%$147.77 (+0.41%)
May 28, 2026
18w ago
Insider Cluster
NEUTRAL ★ 3/10
$150.41 $176.13▲ +17.10%▲ +18.89%$147.77 (−1.76%)
May 26, 2026
18w ago
Insider Cluster
NEUTRAL ★ 3/10
$157.91 $180.70▲ +14.43%▲ +16.33%$147.77 (−6.42%)
May 22, 2026
19w ago
Insider Cluster
NEUTRAL ★ 2/10
$164.27 $167.14▲ +1.75%▲ +3.70%$147.77 (−10.04%)
May 21, 2026
19w ago
Insider Cluster
NEUTRAL ★ 3/10
$156.94 $172.13▲ +9.68%▲ +11.09%$147.77 (−5.84%)
May 15, 2026
20w ago
Insider Cluster
NEUTRAL ★ 4/10
$149.56 $187.53▲ +25.39%▲ +24.65%$147.77 (−1.20%)
May 15, 2026
20w ago
Insider Cluster
NEUTRAL ★ 3/10
$146.24 $176.85▲ +20.93%▲ +19.35%$147.77 (+1.05%)
May 15, 2026
20w ago
Insider Cluster
NEUTRAL ★ 2/10
$146.24 $176.85▲ +20.93%▲ +19.35%$147.77 (+1.05%)
Showing 10 of 11

US Market Status

Market Closed — Opens Mon (64h 11m)

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Report published May 15, 2026