---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-114804"
form_type: "8-K"
ticker: "ACLS"
cik: "0001113232"
company_name: "AXCELIS TECHNOLOGIES INC"
filed_at: "2024-11-06T23:59:59+00:00"
generated_at: "2026-05-30T04:19:39.657708+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Axcelis Q3 revenue $256.6M, EPS $1.49; corrects backlog, guides Q4 revenue ~$245M

## Summary
- Revenue $256.6M (vs Q2 $256.5M); gross margin 42.9%, operating margin 18.3%.
- Diluted EPS $1.49 vs $1.55 in Q2; net income $48.6M.
- Q4 guidance: revenue ~$245M, EPS ~$1.25, citing mature node digestion through H1 2025.
- Historical backlog correction: prior periods overstated; corrected backlog $879M as of June 30, 2024 (vs reported $994M).
- Backlog as of Sep 30, 2024: $758M; correction spans 2019 through Q2 2024.

## SEC filing metadata
- accession: 0001104659-24-114804
- form_type: 8-K
- ticker: ACLS
- cik: 0001113232
- company_name: AXCELIS TECHNOLOGIES INC
- filed_at: 2024-11-06T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1113232/000110465924114804/0001104659-24-114804-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1113232/000110465924114804/tm2427563d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-114804
- JSON: https://secwatch.observer/filing/0001104659-24-114804.json
- Plain text: https://secwatch.observer/filing/0001104659-24-114804.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.