secwatch.observer — SEC 8-K summary
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Issuer:     ONTO INNOVATION INC. (ONTO)
CIK:        0000704532
Form:       8-K
Filed at:   2025-06-30T23:59:59+00:00
Accession:  0001193125-25-152097
Event type: m_and_a
Sentiment:  positive
Materiality: 0.75
Item codes: 1.01, 3.02, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Onto Innovation to acquire Semilab's materials analysis business for ~$545M
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- 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.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/704532/000119312525152097/0001193125-25-152097-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/704532/000119312525152097/d28444d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-25-152097

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer