---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-21-022658"
form_type: "8-K"
ticker: "HYLN"
cik: "0001759631"
company_name: "Hyliion Holdings Corp."
filed_at: "2021-11-10T23:59:59+00:00"
generated_at: "2026-06-28T10:06:10.329964+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Hyliion reports Q3 2021: $588M liquidity, expands board, pushes Hypertruck ERX timeline

## Summary
- Cash and investment balance totals $589M; no revenue recognized yet in Q3.
- Expects first Hybrid eX revenue in Q4 2021 after delivering unit to Werner Enterprises.
- FY2021 OpEx guidance reduced to $110-120M from $130-140M due to truck chassis timing.
- Hypertruck ERX timeline extended to end-2022 for design verification and initial fleet trials.
- Board adds Elaine Chao and Mary Gustanski, expanding to nine members.

## SEC filing metadata
- accession: 0001628280-21-022658
- form_type: 8-K
- ticker: HYLN
- cik: 0001759631
- company_name: Hyliion Holdings Corp.
- filed_at: 2021-11-10T23:59:59+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/1759631/000162828021022658/0001628280-21-022658-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1759631/000162828021022658/hyln-20211109.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-21-022658
- JSON: https://secwatch.observer/filing/0001628280-21-022658.json
- Plain text: https://secwatch.observer/filing/0001628280-21-022658.txt

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