---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-061852"
form_type: "8-K"
ticker: "ASPN"
cik: "0001145986"
company_name: "ASPEN AEROGELS INC"
filed_at: "2025-05-01T23:59:59+00:00"
generated_at: "2026-05-22T23:45:19.560129+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Aspen Aerogels stockholders approve amended equity plan and new ESPP at annual meeting

## Summary
- Amended 2023 Equity Incentive Plan reserves additional 3,850,000 shares; term extended to April 29, 2035.
- Employee Stock Purchase Plan authorized with 4,000,000 shares available for issuance at a discount.
- All director nominees elected (Kool, Noglows); KPMG ratified as auditor; say-on-pay and equity plans approved by stockholders.

## SEC filing metadata
- accession: 0000950170-25-061852
- form_type: 8-K
- ticker: ASPN
- cik: 0001145986
- company_name: ASPEN AEROGELS INC
- filed_at: 2025-05-01T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02, 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1145986/000095017025061852/0000950170-25-061852-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1145986/000095017025061852/aspn-20250430.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-061852
- JSON: https://secwatch.observer/filing/0000950170-25-061852.json
- Plain text: https://secwatch.observer/filing/0000950170-25-061852.txt

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