Business Context and Reporting Period
Company: Onto Innovation Inc.
Filing Type: Form 8-K (Current Report)
Date of Report: April 20, 2026
Event: Entry into a Material Definitive Agreement to acquire a significant stake in Rigaku Holdings Corporation.
Key Financial Metrics and Transaction Details
- Transaction Value: Approximately $710 million aggregate purchase price.
- Acquisition Scope: 61,123,436 shares (27% of issued and outstanding shares) of Rigaku Holdings Corporation.
- Counterparty: Atom Investments, L.P. (an affiliate of The Carlyle Group).
- Financing Arrangement: A senior secured 364-day bridge term loan credit facility of up to $500 million committed by Goldman Sachs Bank USA.
- Termination Fee: 2% of the Purchase Price payable by the Company under certain termination circumstances.
- Expected Closing: Second half of 2026, subject to customary conditions.
Note: This filing does not provide current period revenue, profit, cash flow, or margin data for Onto Innovation Inc.
Material Changes and Strategic Shifts
The Company has entered a capital and business alliance with Rigaku, marking a strategic expansion into X-ray technologies and process control markets. This represents a material change in the Company's capital structure and strategic direction, pending regulatory approval and closing conditions.
Guidance, Risks, and Contingencies
- Closing Conditions: The transaction is contingent upon the expiration of HSR Act waiting periods, receipt of regulatory approvals, absence of legal prohibitions, and no Material Adverse Effect occurring.
- Termination Rights: Either party may terminate if the transaction is not consummated within six months (subject to a six-month extension), if a governmental authority enjoins the deal, or upon uncured breach of the agreement.
- Forward-Looking Risks: Risks include the ability to obtain regulatory approvals, availability of debt financing, integration of acquired technologies, and market fluctuations in the semiconductor sector.
- Financing Contingency: The $500 million bridge facility is subject to customary conditions precedent, including the consummation of the Transaction.
Investor Verification Checklist
- Verify the status of regulatory approvals required under the Hart-Scott-Rodino Antitrust Improvements Act and other jurisdictions.
- Confirm the final terms and interest rates of the $500 million bridge facility with Goldman Sachs Bank USA.
- Monitor the timeline for the expected closing in the second half of 2026 and any potential extensions.
- Review the full text of the Share Purchase Agreement (Exhibit 2.1) for specific representations, warranties, and disclosure schedules.
- Assess the strategic fit and integration plan for Rigaku's X-ray technology within Onto Innovation's existing portfolio.