---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-26-003109"
form_type: "8-K"
ticker: "ASPN"
cik: "0001145986"
company_name: "ASPEN AEROGELS INC"
filed_at: "2026-05-07T23:59:59+00:00"
generated_at: "2026-05-14T21:24:57.714855+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 falls 52% YoY to $37.9M; adjusted loss per share $0.28 vs $0.06 prior year

## Summary
- Revenue $37.9M, down from $78.7M; thermal barrier segment revenue dropped 67% to $16.3M on reduced customer demand.
- Net loss $23.7M vs $301.2M (prior year included $286.6M impairment); adjusted net loss $23.3M vs $4.8M.
- Adjusted EBITDA negative $12.7M vs positive $4.9M in prior year; cash balance $175.6M, up from $158.6M year-end.
- Received $37.6M cash from GM commercial settlement; $3.5M recognized as revenue in Q1, remaining $4.9M/quarter through 2027.
- East Providence manufacturing facility to have staged restart in May 2026; secured additional subsea pipeline award for Q3 delivery.

## SEC filing metadata
- accession: 0001171843-26-003109
- form_type: 8-K
- ticker: ASPN
- cik: 0001145986
- company_name: ASPEN AEROGELS INC
- filed_at: 2026-05-07T23:59:59+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/1145986/000117184326003109/0001171843-26-003109-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1145986/000117184326003109/f8k_050726.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-26-003109
- JSON: https://secwatch.observer/filing/0001171843-26-003109.json
- Plain text: https://secwatch.observer/filing/0001171843-26-003109.txt

## Key facts
- Earnings Releases
  ASPEN AEROGELS INC reported first quarter of 2026 results: revenue $37.9 million, net income Net loss was $23.7 million, EPS Net loss per share was $0.29.
  - Period: first quarter of 2026
  - Revenue: $37.9 million
  - Net income: Net loss was $23.7 million
  - EPS: Net loss per share was $0.29
  - Result: reported results
  source text: Total revenue for the first quarter of 2026 was $37.9 million, compared to $78.7 million in the prior year period.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1145986/000117184326003109/0001171843-26-003109-index.htm

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