---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-003673"
form_type: "8-K"
ticker: null
cik: "0001136294"
company_name: "NOS4-1, Inc."
filed_at: "2024-01-12T23:59:59+00:00"
generated_at: "2026-06-06T23:48:02.088579+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 1.0
calibrated_materiality_score: 1.0
confidence: "high"
source: SEC EDGAR
---

# Williams Industrial Services renames to NOS4-1; Chapter 11 plan cancels common stock with no recovery

## Summary
- Company renamed to NOS4-1, Inc. effective Jan 11, 2024, as required by asset sale to Energy Solutions Nuclear Services.
- Chapter 11 Plan of Liquidation provides common stock holders receive no distribution; stock will be canceled upon confirmation.
- Company completed sale of all businesses and assets in Sept 2023 and ceased all operations.
- Former websites (wisgrp.com, ir.wisgrp.com) sold; current company info available via Epiq claims agent website.
- Trading in WLMSQ on OTC Expert Market is highly speculative; equity expected to become worthless.

## SEC filing metadata
- accession: 0001104659-24-003673
- form_type: 8-K
- cik: 0001136294
- company_name: NOS4-1, Inc.
- filed_at: 2024-01-12T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 1.0
- calibrated_materiality_score: 1.0
- confidence: high
- sec_items: 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1136294/000110465924003673/0001104659-24-003673-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1136294/000110465924003673/tm242438d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-003673
- JSON: https://secwatch.observer/filing/0001104659-24-003673.json
- Plain text: https://secwatch.observer/filing/0001104659-24-003673.txt

## Key facts
- Governance Changes
  NOS4-1, Inc.: Changed corporate name from Williams Industrial Services Group Inc. to NOS4-1, Inc (effective 2024-01-11).
  - Change: charter amendment
  - Effective: 2024-01-11
  source text: On January 11, 2024, the Company filed a Certificate of Amendment to its Second Amended and Restated Certificate of Incorporation with the Delaware Secretary of State (the “ Amendment ”). The Amendment changed the name of the Company from Williams Industrial Services Group Inc. to NOS4-1, Inc. effective immediately (the “ Name Change ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1136294/000110465924003673/0001104659-24-003673-index.htm

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