ACLS AXCELIS TECHNOLOGIES INC

NEUTRAL Impact: 4/10 Insider Cluster (5 insiders)
Horizon weeks Filed May 15, 2026 Processed 21d 20h ago
Insider cluster: 5 insiders, $1.7M total
Latest settled — T+5d
ACLS ▲ +4.01% at T+5d
NEUTRAL call ✓ call won +4.01% · α vs SPY +2.20% · entry $149.56 → $155.55
Next anchor: T+20d in 7d
Currently $159.57 · +6.69% from $149.56 entry
Entry anchored
May 19, 2026
via day open
T+1d
+1.97%
call +1.97% · α +1.78%
$152.51
settled 21d ago
T+5d
+4.01%
call +4.01% · α +2.20%
$155.55
settled 14d ago
T+20d
call — · α —
in 7d
T+60d
call — · α —
in 2mo

Price Chart

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Executive Summary

Five Axcelis insiders, including two EVPs and a VP, collectively sold ~$1.74M in stock over May 12-14, 2026, following a Q1 earnings release on May 7 that showed revenue up 3.3% YoY but GAAP EPS down 66% YoY ($0.30 vs $0.88) and guidance for flat 2026 revenue. Grants and tax-withholding transactions on May 15 are non-cash and not material to the sell signal. The sale cluster is modest at 0.04% of the $4.5B market cap, below materiality thresholds per academic literature, and is likely routine portfolio rebalancing after equity compensation vesting.

Key Financial Metrics

Direction
selling
Total Value
$1.7M
Insiders
5

Actionable Insight

The sell cluster is economically trivial relative to market cap and includes no C-suite executives (CEO/CFO not selling). This is consistent with routine diversification after equity vesting. The Veeco merger and flat-revenue guidance are the more relevant trading narratives. Monitor Q2 earnings in early August for order momentum in Memory/DRAM and any Veeco deal timeline updates.

Key Facts

  • Insider cluster of 5 open-market sellers (2 EVPs, 1 VP, 1 Director, 1 EVP) over May 12-14, total ~$1.74M sold at $160-$164/share
  • Q1 2026 revenue $199.0M (+3.3% YoY) but GAAP EPS dropped to $0.30 from $0.88 (-66% YoY); Non-GAAP EPS $0.72 vs $1.06 (-32% YoY)
  • Company guided Q2 2026 revenue ~$205M and non-GAAP EPS ~$0.90; 2026 revenue expected 'relatively flat' vs 2025
  • Merger with Veeco Instruments expected to close H2 2026 was announced Oct 2025
  • All 5 open-market sellers are non-C-suite (no CEO/CFO selling); ~$570M cash balance provides ample liquidity

Financial Impact

Total insider selling of ~$1.74M represents ~0.04% of the $4.5B market cap — a trivial amount that does not signal material insider bearishness

insider-sales-dollar-ratiomarket-cap-proportionality

Risk Factors

  • Flat 2026 revenue guidance with Power/Mature markets digestion could persist longer than guided
  • Veeco merger integration execution risk and potential shareholder dissent
  • Semiconductor equipment cycle cyclicality; tariff/trade policy risks on supply chain

Market Snapshot

Exchange
Nasdaq
Sector
Special Industry Machinery, NEC
Analyst Consensus
58% bullish (12 analysts)

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-ACLS-1779224746392
9 reports for ACLS
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for ACLS — sortable, filterable
Type Now
Jun 4, 2026
5d ago
Insider Cluster
NEUTRAL ★ 3/10
$155.28 awaiting T+5awaiting T+5$159.57 (+2.76%)
May 28, 2026
12d ago
Insider Cluster
NEUTRAL ★ 3/10
$150.41 $147.16▼ −2.16%▲ +0.36%$159.57 (+6.09%)
May 26, 2026
14d ago
Insider Cluster
NEUTRAL ★ 3/10
$157.91 $159.19▲ +0.81%▲ +0.34%$159.57 (+1.05%)
May 22, 2026
18d ago
Insider Cluster
NEUTRAL ★ 2/10
$164.27 $158.78▼ −3.34%▼ −4.55%$159.57 (−2.86%)
May 21, 2026
19d ago
Insider Cluster
NEUTRAL ★ 3/10
$156.94 $150.42▼ −4.15%▼ −5.81%$159.57 (+1.68%)
May 15, 2026
25d ago
Insider Cluster
NEUTRAL ★ 4/10
$149.56 $155.55▲ +4.01%▲ +2.20%$159.57 (+6.69%)
May 15, 2026
25d ago
Insider Cluster
NEUTRAL ★ 3/10
$146.24 $164.27▲ +12.33%▲ +10.71%$159.57 (+9.12%)
May 15, 2026
25d ago
Insider Cluster
NEUTRAL ★ 2/10
$146.24 $164.27▲ +12.33%▲ +10.71%$159.57 (+9.12%)
May 6, 2026
5w ago
Insider Cluster
BEARISH ★ 6/10
$171.00 $162.15▲ +5.18%▲ +6.35%$159.57 (+6.68%)
Showing 9 of 9

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