---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-134590"
form_type: "8-K"
ticker: "IOSP"
cik: "0001054905"
company_name: "INNOSPEC INC."
filed_at: "2023-05-03T23:59:59+00:00"
generated_at: "2026-06-16T00:05:31.160829+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Innospec reports Q1 revenue up 8% to $509.6M; GAAP EPS $1.33, adjusted EPS $1.38

## Summary
- Revenue $509.6M (+8% YoY) driven by strong Oilfield Services growth.
- GAAP EPS $1.33 vs $1.46; adjusted non-GAAP EPS $1.38 vs $1.53.
- EBITDA of $53.9M compared to $59.0M in prior-year quarter.
- Semi-annual dividend increased 10% to $0.69/share, payable May 31 to holders of record May 22.
- Operating cash flow $21.8M; net cash at quarter end $147.5M.

## SEC filing metadata
- accession: 0001193125-23-134590
- form_type: 8-K
- ticker: IOSP
- cik: 0001054905
- company_name: INNOSPEC INC.
- filed_at: 2023-05-03T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- 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/1054905/000119312523134590/0001193125-23-134590-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1054905/000119312523134590/d498100d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-134590
- JSON: https://secwatch.observer/filing/0001193125-23-134590.json
- Plain text: https://secwatch.observer/filing/0001193125-23-134590.txt

## Key facts
- Earnings Releases
  INNOSPEC INC. reported the fiscal quarter ended March 31, 2023 results: revenue $509.6 million, net income $33.2 million or $1.33 per diluted share, EPS $1.33 per diluted share.
  - Period: the fiscal quarter ended March 31, 2023
  - Revenue: $509.6 million
  - Net income: $33.2 million or $1.33 per diluted share
  - EPS: $1.33 per diluted share
  - Result: reported results
  source text: Total revenues for the first quarter were $509.6 million, an increase of 8 percent from $472.4 million in the corresponding period last year. Net income for the quarter was $33.2 million or $1.33 per diluted share compared to $36.5 million or $1.46 cents per diluted share recorded last year.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1054905/000119312523134590/0001193125-23-134590-index.htm

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