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AI brief of an SEC Form 8-K · Onto Innovation (ONTO)

Onto Innovation agrees to buy Semilab materials unit for $475 million cash and stock

Neutral Impact 4 of 5 m&a Written later

Onto Innovation agreed on June 27, 2025 to acquire the materials analysis business of Semilab International for $475 million in cash, subject to adjustments, plus 706,215 shares of common stock. The company says the deal is expected to close in the second half of 2025 and to add about $130 million to annual revenue, but the filing does not provide audited results for the business, and these projections are company estimates.

Key points

  • Consideration: $475 million in cash plus 706,215 shares; the company puts total value at about $545 million based on the June 27, 2025 closing price
  • Expected close in the second half of 2025, subject to U.S. HSR waiting period expiration, Hungarian foreign direct investment approval and customary conditions
  • Company projects the acquired portfolio will generate about $130 million in annual revenue in 2025 and expects it to be immediately accretive to gross and operating margins
  • Onto Innovation affirmed its second quarter guidance first given on May 8, 2025

The filing

CompanyOnto Innovation (ONTO)
Form8-K, current report
Filed with the SECJun 30, 2025, 9:05 AM ET
Accession number0001193125-25-152097

Items reported: 1.01 Material Definitive Agreement3.02 Unregistered Equity Sale7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:17 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on June 30, 2025.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.