---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-052143"
form_type: "8-K"
ticker: null
cik: "0001701732"
company_name: "Altair Engineering Inc."
filed_at: "2024-05-02T23:59:59+00:00"
generated_at: "2026-06-03T00:39:52.939956+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Altair Q1 2024: record software rev $158.4M, net income $16.5M vs loss, raises guidance

## Summary
- Software revenue record $158.4M (+5.9% YoY); total revenue $172.9M (+4.1% YoY).
- Net income $16.5M vs net loss $2.0M in Q1 2023; diluted EPS $0.20.
- Non-GAAP net income $36.2M (+13.9%); non-GAAP diluted EPS $0.40.
- Adjusted EBITDA $45.8M (+6.4%); margin 26.5%. Free cash flow $70.7M.
- Q2 2024 guidance: software rev $131-134M; FY24: software rev $590-600M, total rev $652-662M.

## SEC filing metadata
- accession: 0000950170-24-052143
- form_type: 8-K
- cik: 0001701732
- company_name: Altair Engineering Inc.
- filed_at: 2024-05-02T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1701732/000095017024052143/0000950170-24-052143-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1701732/000095017024052143/altr-20240502.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-052143
- JSON: https://secwatch.observer/filing/0000950170-24-052143.json
- Plain text: https://secwatch.observer/filing/0000950170-24-052143.txt

## Key facts
- Earnings Releases
  Altair Engineering Inc. reported first quarter ended March 31, 2024 results: revenue $172.9 million, net income $16.5 million, EPS $0.20 per diluted share. Guidance reaffirmed.
  - Period: first quarter ended March 31, 2024
  - Revenue: $172.9 million
  - Net income: $16.5 million
  - EPS: $0.20 per diluted share
  - Guidance: reaffirmed
  - Result: reported results
  source text: Total revenue was $172.9 million compared to $166.0 million for the first quarter of 2023, an increase of 4.1% in reported currency and 5.1% in constant currency • Net income was $16.5 million compared to a net loss of $(2.0) million for the first quarter of 2023. Net income per share, diluted was $0.20 based on 89.8 million diluted weighted average common shares outstanding
  evidence_url: https://www.sec.gov/Archives/edgar/data/1701732/000095017024052143/0000950170-24-052143-index.htm

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