---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-26-024026"
form_type: "8-K"
ticker: "PESI"
cik: "0000891532"
company_name: "PERMA FIX ENVIRONMENTAL SERVICES INC"
filed_at: "2026-05-18T10:02:20+00:00"
generated_at: "2026-05-18T10:05:44.934661+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Perma-Fix prices $20M public offering of 2.29M shares at $8.75; over-allotment fully exercised

## Summary
- Underwriting with Craig-Hallum for 2,285,714 shares at $8.75/share; 30-day over-allotment of 342,857 shares exercised in full.
- Gross proceeds of $20M; net proceeds expected ~$21.1M after underwriting discounts and estimated offering expenses.
- Proceeds to fund capacity upgrades at Perma-Fix Northwest Richland facility and development of Perma-FAS PFAS destruction process.
- Offering expected to close on May 18, 2026, subject to customary conditions.

## SEC filing metadata
- accession: 0001493152-26-024026
- form_type: 8-K
- ticker: PESI
- cik: 0000891532
- company_name: PERMA FIX ENVIRONMENTAL SERVICES INC
- filed_at: 2026-05-18T10:02:20+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/891532/000149315226024026/0001493152-26-024026-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/891532/000149315226024026/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-26-024026
- JSON: https://secwatch.observer/filing/0001493152-26-024026.json
- Plain text: https://secwatch.observer/filing/0001493152-26-024026.txt

## Key facts
- Material Agreements
  PERMA FIX ENVIRONMENTAL SERVICES INC entered into Underwriting Agreement with Craig-Hallum Capital Group LLC (effective 2026-05-14).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: Craig-Hallum Capital Group LLC
  - Effective: 2026-05-14
  source text: On May 14, 2026, Perma-Fix Environmental Services, Inc. (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Craig-Hallum Capital Group LLC (the “Underwriter”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/891532/000149315226024026/0001493152-26-024026-index.htm

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