{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-064802","form_type":"8-K","ticker":"MEC","cik":"0001766368","company_name":"Mayville Engineering Company, Inc.","filed_at":"2026-05-21T10:30:12+00:00","discovered_at":"2026-05-21T10:35:00.275816+00:00","generated_at":"2026-05-21T10:36:04.279924+00:00","sec_items":["1.01","7.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Mayville Engineering prices upsized $86.9M common stock offering; underwriters exercise option","bullets":["Priced 4,348,000 shares at $20.00/share; gross proceeds $86.9M before expenses.","Underwriters fully exercised 30-day option for 652K additional shares; total net proceeds ~$93.9M.","Net proceeds to reduce revolver borrowings (incl. Accu-fab acquisition debt), capex, and working capital.","Offering expected to close May 21, 2026; lead managers William Blair and Craig-Hallum."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-064802","json":"https://secwatch.observer/filing/0001104659-26-064802.json","markdown":"https://secwatch.observer/filing/0001104659-26-064802.md","text":"https://secwatch.observer/filing/0001104659-26-064802.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1766368/000110465926064802/0001104659-26-064802-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1766368/000110465926064802/tmb-20260519x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-21T10:36:04.279924+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}