---
schema_version: "secwatch.filing_event.v1"
accession: "0001683168-21-005096"
form_type: "8-K"
ticker: "ATOM"
cik: "0001420520"
company_name: "Atomera Inc"
filed_at: "2021-10-28T23:59:59+00:00"
generated_at: "2026-06-28T16:43:13.932406+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Atomera Q3 net loss widens to $4.2M; cash drops to $31.8M

## Summary
- Net loss of $4.2M ($0.19 per share) vs. $3.6M loss in Q3 2020; adjusted EBITDA loss of $3.6M.
- Cash and cash equivalents $31.8M at Sept 30, 2021, down from $37.9M at Dec 31, 2020.
- Formal acceptance of 200mm and 300mm Epi deposition tool and facility achieved.
- Patent portfolio reached 298 issued and pending patents as of Sept 30, 2021.
- Customer engagements: 19 customers, 25 engagements; partner progressed toward production.

## SEC filing metadata
- accession: 0001683168-21-005096
- form_type: 8-K
- ticker: ATOM
- cik: 0001420520
- company_name: Atomera Inc
- filed_at: 2021-10-28T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1420520/000168316821005096/0001683168-21-005096-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1420520/000168316821005096/atomera_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001683168-21-005096
- JSON: https://secwatch.observer/filing/0001683168-21-005096.json
- Plain text: https://secwatch.observer/filing/0001683168-21-005096.txt

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