---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-027965"
form_type: "8-K"
ticker: "ASPN"
cik: "0001145986"
company_name: "ASPEN AEROGELS INC"
filed_at: "2024-03-07T23:59:59+00:00"
generated_at: "2026-06-05T01:09:17.325858+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Aspen Aerogels cancels unearned performance shares for CEO and five other executives; $2.2M charge

## Summary
- CEO Donald Young's 304,666 unearned performance-based restricted shares cancelled; five other executives each lost 53,590 shares.
- Committee determined stock price hurdles remote given market conditions; cancelled shares re-added to 2023 equity plan.
- Immediate non-cash charge of ~$2.2 million for unamortized compensation costs from the cancellations.
- Earned restricted shares (156,950 for Young) remain outstanding subject to continued service vesting.
- Cancellation agreements executed on March 6, 2024, following Committee approval on March 5.

## SEC filing metadata
- accession: 0000950170-24-027965
- form_type: 8-K
- ticker: ASPN
- cik: 0001145986
- company_name: ASPEN AEROGELS INC
- filed_at: 2024-03-07T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1145986/000095017024027965/0000950170-24-027965-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1145986/000095017024027965/aspn-20240305.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-027965
- JSON: https://secwatch.observer/filing/0000950170-24-027965.json
- Plain text: https://secwatch.observer/filing/0000950170-24-027965.txt

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