---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-25-005147"
form_type: "8-K"
ticker: "ASPN"
cik: "0001145986"
company_name: "ASPEN AEROGELS INC"
filed_at: "2025-08-07T23:59:59+00:00"
generated_at: "2026-05-17T17:07:40.917443+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Aspen Aerogels Reports Q2 2025 Revenue of $78M, Net Loss of $9.1M, and CFO Transition

## Summary
- Total revenue for Q2 2025 was $78.0 million, down from $117.8 million in Q2 2024.
- Net loss was $9.1 million, including $5.9 million of restructuring and impairment charges, compared to net income of $16.8 million a year ago.
- Adjusted EBITDA for Q2 2025 was $9.7 million, versus $28.9 million in the prior-year quarter.
- Aspen announces a CFO transition to an internal successor during Q3 2025.
- Fixed cost structure reductions are expected to drive incremental profit in the second half of 2025.

## SEC filing metadata
- accession: 0001171843-25-005147
- form_type: 8-K
- ticker: ASPN
- cik: 0001145986
- company_name: ASPEN AEROGELS INC
- filed_at: 2025-08-07T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- 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/1145986/000117184325005147/0001171843-25-005147-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1145986/000117184325005147/f8k_080725.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-25-005147
- JSON: https://secwatch.observer/filing/0001171843-25-005147.json
- Plain text: https://secwatch.observer/filing/0001171843-25-005147.txt

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