---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-037235"
form_type: "8-K"
ticker: "ASPN"
cik: "0001145986"
company_name: "ASPEN AEROGELS INC"
filed_at: "2023-08-02T23:59:59+00:00"
generated_at: "2026-06-12T11:42:34.606396+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Aspen Aerogels Q2 net loss narrows to $15.4M; gross margin hits 17%, guidance improved

## Summary
- Revenue $48.2M, up from $45.6M YoY; net loss $15.4M vs $24.1M YoY; EPS -$0.22 vs -$0.68.
- Gross margin 17%, a 20-percentage point improvement vs prior year.
- Adjusted EBITDA loss $(10.8)M vs $(18.3)M YoY.
- Reduced 2023 net loss outlook by $17M; expects strong H2 demand growth.

## SEC filing metadata
- accession: 0000950170-23-037235
- form_type: 8-K
- ticker: ASPN
- cik: 0001145986
- company_name: ASPEN AEROGELS INC
- filed_at: 2023-08-02T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1145986/000095017023037235/0000950170-23-037235-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1145986/000095017023037235/aspn-20230802.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-037235
- JSON: https://secwatch.observer/filing/0000950170-23-037235.json
- Plain text: https://secwatch.observer/filing/0000950170-23-037235.txt

## Key facts
- Earnings Releases
  ASPEN AEROGELS INC reported second quarter of 2023 results: revenue $48.2 million, net income $15.4 million, EPS $0.22. Guidance lowered.
  - Period: second quarter of 2023
  - Revenue: $48.2 million
  - Net income: $15.4 million
  - EPS: $0.22
  - Guidance: lowered
  - Result: reported results
  source text: Total revenue for the second quarter of 2023 was $48.2 million, compared to $45.6 million in the second quarter of last year. Net loss was $15.4 million, compared to a net loss of $24.1 million in the second quarter of last year. Net loss per share was $0.22, compared to a net loss per share of $0.68 in the second quarter last year.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1145986/000095017023037235/0000950170-23-037235-index.htm

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