---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-295525"
form_type: "8-K"
ticker: "ASPN"
cik: "0001145986"
company_name: "ASPEN AEROGELS INC"
filed_at: "2022-11-30T23:59:59+00:00"
generated_at: "2026-06-21T11:28:43.683868+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Aspen Aerogels prices public offering of 25.3M shares at $9.50/sh for ~$240M gross proceeds

## Summary
- Offering of 25,263,158 shares priced at $9.50 per share, expected gross proceeds of ~$240M.
- Underwriters granted 30-day option to purchase up to 3,789,473 additional shares for over-allotments.
- Offering expected to close on or about December 2, 2022, subject to customary conditions.
- Cowen and Company and Barclays Capital are the representatives of the underwriters.

## SEC filing metadata
- accession: 0001193125-22-295525
- form_type: 8-K
- ticker: ASPN
- cik: 0001145986
- company_name: ASPEN AEROGELS INC
- filed_at: 2022-11-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1145986/000119312522295525/0001193125-22-295525-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1145986/000119312522295525/d433755d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-295525
- JSON: https://secwatch.observer/filing/0001193125-22-295525.json
- Plain text: https://secwatch.observer/filing/0001193125-22-295525.txt

## Key facts
- Material Agreements
  ASPEN AEROGELS INC entered into Underwriting Agreement with Cowen and Company, LLC and Barclays Capital Inc., as representatives of the several underwriters valued at approximately $240 million (effective 2022-11-29).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: Cowen and Company, LLC and Barclays Capital Inc., as representatives of the several underwriters
  - Value: approximately $240 million
  - Effective: 2022-11-29
  source text: On November 29, 2022, Aspen Aerogels, Inc. (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Cowen and Company, LLC and Barclays Capital Inc., as representatives of the several underwriters named in Schedule A therein (the “Underwriters”), relating to the underwritten public offering of 25,263,158 shares of the Company’s common stock, par value $0.00001 per share (the “Offering”). The price to the public in the Offering was $9.50 per share.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1145986/000119312522295525/0001193125-22-295525-index.htm

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