---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-21-025843"
form_type: "8-K/A"
ticker: "PESI"
cik: "0000891532"
company_name: "PERMA FIX ENVIRONMENTAL SERVICES INC"
filed_at: "2021-10-20T23:59:59+00:00"
generated_at: "2026-06-28T19:49:11.056125+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Perma-Fix corrects option agreement expiration date to Oct 14, 2027 in 8-K/A

## Summary
- Amendment corrects expiration date in ISOs from Oct 14, 2021 to Oct 14, 2027.
- Original grants: 50,000 shares to CEO Mark Duff; 25,000 each to CFO Ben Naccarato, EVP Richard Grondin, EVP Andy Lombardo; 20,000 to EVP Louis Centofanti.
- Exercise price $7.005 per share, equal to closing price on Oct 14, 2021.
- Options vest 20% per year over five years, expire six years from grant.

## SEC filing metadata
- accession: 0001493152-21-025843
- form_type: 8-K/A
- ticker: PESI
- cik: 0000891532
- company_name: PERMA FIX ENVIRONMENTAL SERVICES INC
- filed_at: 2021-10-20T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/891532/000149315221025843/0001493152-21-025843-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/891532/000149315221025843/form8-ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-21-025843
- JSON: https://secwatch.observer/filing/0001493152-21-025843.json
- Plain text: https://secwatch.observer/filing/0001493152-21-025843.txt

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