---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-23-051834"
form_type: "8-K"
ticker: "HYLN"
cik: "0001759631"
company_name: "Hyliion Holdings Corp."
filed_at: "2023-06-27T23:59:59+00:00"
generated_at: "2026-06-13T16:26:06.764556+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Hyliion starts first production Hypertruck ERX install, unveils KARNO 200kW model, reaffirms 2023 revenue ~$10M

## Summary
- Begins installation of first production Hypertruck ERX powertrain; on track for customer deliveries later in 2023.
- Unveils full-scale 200 kW KARNO stationary generator model; expects initial revenue from KARNO in 2024.
- Announces day cab version of Hypertruck ERX platform, expected ready in 2025; cites customer demand and CARB regulation.
- Reiterates 2023 guidance: revenue ~$10M, operating expenses ~$130M, total cash spending <$150M, no capital raise planned.
- Updates on Hyzon fuel cell collaboration; development truck with Hyzon 200 kW fuel cell stack.

## SEC filing metadata
- accession: 0001213900-23-051834
- form_type: 8-K
- ticker: HYLN
- cik: 0001759631
- company_name: Hyliion Holdings Corp.
- filed_at: 2023-06-27T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1759631/000121390023051834/0001213900-23-051834-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1759631/000121390023051834/ea180977-8k_hyliionhold.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-23-051834
- JSON: https://secwatch.observer/filing/0001213900-23-051834.json
- Plain text: https://secwatch.observer/filing/0001213900-23-051834.txt

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