{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-152097","form_type":"8-K","ticker":"ONTO","cik":"0000704532","company_name":"ONTO INNOVATION INC.","filed_at":"2025-06-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:51.058746+00:00","generated_at":"2026-05-18T15:08:08.046306+00:00","sec_items":["1.01","3.02","7.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Onto Innovation to acquire Semilab's materials analysis business for ~$545M","bullets":["Total consideration of $475M cash and 706,215 shares of ONTO stock (~$545M total based on June 27 close).","Acquisition adds four product lines for inline wafer contamination monitoring and materials interface characterization.","Portfolio has grown ~20% CAGR since 2021, projected to generate ~$130M annual revenue in 2025.","Expected to be immediately accretive to gross and operating margins, increasing non-GAAP EPS by >10% in first year.","Expected close in H2 2025, subject to US and Hungarian regulatory approvals; Q2 2025 guidance reaffirmed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-152097","json":"https://secwatch.observer/filing/0001193125-25-152097.json","markdown":"https://secwatch.observer/filing/0001193125-25-152097.md","text":"https://secwatch.observer/filing/0001193125-25-152097.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/704532/000119312525152097/0001193125-25-152097-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/704532/000119312525152097/d28444d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T15:08:08.046306+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"}