---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-25-002948"
form_type: "8-K"
ticker: "ASPN"
cik: "0001145986"
company_name: "ASPEN AEROGELS INC"
filed_at: "2025-05-08T23:59:59+00:00"
generated_at: "2026-05-22T03:11:42.468164+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Aspen Aerogels Q1 revenue $78.7M, net loss $301.2M on $286.6M impairment

## Summary
- Total revenue $78.7M vs $94.5M in Q1 2024; operating cash flow $5.6M.
- Net loss of $301.2M includes $286.6M impairment from demobilizing Statesboro, GA plant.
- Adjusted net loss $4.8M; adjusted EBITDA $4.9M vs $12.9M a year ago.
- GAAP EPS loss $3.67; adjusted EPS loss $0.06.
- New PyroThin award with leading American OEM for next-gen prismatic LFP platform.

## SEC filing metadata
- accession: 0001171843-25-002948
- form_type: 8-K
- ticker: ASPN
- cik: 0001145986
- company_name: ASPEN AEROGELS INC
- filed_at: 2025-05-08T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1145986/000117184325002948/0001171843-25-002948-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1145986/000117184325002948/f8k_050825.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-25-002948
- JSON: https://secwatch.observer/filing/0001171843-25-002948.json
- Plain text: https://secwatch.observer/filing/0001171843-25-002948.txt

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