---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-051324"
form_type: "8-K"
ticker: "HYLN"
cik: "0001759631"
company_name: "Hyliion Holdings Corp."
filed_at: "2025-11-12T23:59:59+00:00"
generated_at: "2026-05-16T21:21:44.055047+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Hyliion Q3 net loss $13.3M; KARNO meets customer performance, 500 LOI cores

## Summary
- Q3 revenue $0.8M from R&D services; net loss $13.3M vs $11.2M in prior-year quarter.
- Cash and investments $164.7M; expects year-end ~$155M; total 2025 cash use ~$65M.
- KARNO completed >100 days testing with no unplanned hardware downtime; EPA confirms not federally regulated.
- Non-binding LOIs for nearly 500 KARNO cores; full commercialization expected in 2026.
- U.S. Navy autonomous ship sea trials; KARNO installations planned for 2026 under R&D contract.

## SEC filing metadata
- accession: 0001628280-25-051324
- form_type: 8-K
- ticker: HYLN
- cik: 0001759631
- company_name: Hyliion Holdings Corp.
- filed_at: 2025-11-12T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- 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/1759631/000162828025051324/0001628280-25-051324-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1759631/000162828025051324/hyln-20251111.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-051324
- JSON: https://secwatch.observer/filing/0001628280-25-051324.json
- Plain text: https://secwatch.observer/filing/0001628280-25-051324.txt

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