{"schema_version":"secwatch.filing_event.v1","accession":"0001759631-21-000052","form_type":"8-K","ticker":"HYLN","cik":"0001759631","company_name":"Hyliion Holdings Corp.","filed_at":"2021-08-26T23:59:59+00:00","discovered_at":"2026-05-14T18:04:19.519856+00:00","generated_at":"2026-06-29T07:37:13.300753+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Hyliion appoints automotive industry veteran Mary Gustanski to Board of Directors","bullets":["Mary Gustanski, age 59, appointed as Class III director with term expiring at 2023 annual meeting.","Gustanski is former SVP and CTO of Delphi Technologies with nearly 40 years in automotive electrification.","She will serve on the Compensation Committee; board size increases to nine directors.","Compensated on same basis as other non-employee directors; standard indemnification agreement in place."],"urls":{"canonical":"https://secwatch.observer/filing/0001759631-21-000052","json":"https://secwatch.observer/filing/0001759631-21-000052.json","markdown":"https://secwatch.observer/filing/0001759631-21-000052.md","text":"https://secwatch.observer/filing/0001759631-21-000052.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1759631/000175963121000052/0001759631-21-000052-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1759631/000175963121000052/hyln-20210824.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T07:37:13.300753+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"212accc029","claim":"Mary Elizabeth Gustanski was appointed as Director at Hyliion Holdings Corp..","evidence_excerpt":"On August 24, 2021, the Board of Directors of Hyliion Holdings Corp. (the “Company”) appointed Mary Elizabeth Gustanski, age 59, to the Board of Directors.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1759631/000175963121000052/0001759631-21-000052-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}