{"filing":{"accession_number":"0001628280-26-049453","cik":"0001759631","ticker":"HYLN","company_name":"Hyliion Holdings Corp.","form":"8-K","filing_date":"2026-07-23","report_date":"2026-07-21","primary_document":"hyln-20260721.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1759631/000162828026049453/hyln-20260721.htm"},"events":[{"id":20225,"run_id":18210,"accession_number":"0001628280-26-049453","anchor_item_number":"8.01","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"summary":"Hyliion announced a $42 million cost-plus-fixed-fee contract award from the Office of Naval Research for the HELMUR power generation program, with work spanning 36 months through July 2029. This is a material operational and strategic event—a significant government contract that advances the company's core technology and represents a substantial revenue opportunity—but does not fit the specific categories of M\u0026A, debt issuance, or other named financial/operational types. The contract is clearly material to a reasonable investor assessing the company's business prospects and revenue pipeline.","company_name":"Hyliion Holdings Corp.","ticker":"HYLN","filing_date":"2026-07-23","form":"8-K","submitted_at":null,"items":[{"id":19527,"accession_number":"0001628280-26-049453","item_number":"8.01","item_title":"Other Events.","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"Hyliion announced a $42 million cost-plus-fixed-fee contract award from the Office of Naval Research for the HELMUR power generation program, with work spanning 36 months through July 2029. This is a material operational and strategic event—a significant government contract that advances the company's core technology and represents a substantial revenue opportunity—but does not fit the specific categories of M\u0026A, debt issuance, or other named financial/operational types. The contract is clearly material to a reasonable investor assessing the company's business prospects and revenue pipeline.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-24T10:03:58.810382+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":19527,"accession_number":"0001628280-26-049453","item_number":"8.01","item_title":"Other Events.","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"Hyliion announced a $42 million cost-plus-fixed-fee contract award from the Office of Naval Research for the HELMUR power generation program, with work spanning 36 months through July 2029. This is a material operational and strategic event—a significant government contract that advances the company's core technology and represents a substantial revenue opportunity—but does not fit the specific categories of M\u0026A, debt issuance, or other named financial/operational types. The contract is clearly material to a reasonable investor assessing the company's business prospects and revenue pipeline.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-24T10:03:58.810382+00:00","company_name":"Hyliion Holdings Corp.","ticker":"HYLN","filing_date":"2026-07-23"}]}