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Form 8-K · Current Report · Filed 2026-05-18

Onto Innovation Announces Proposed Private Offering of $1.1 Billion Convertible Senior Notes Due 2031

Onto Innovation Inc. announced a proposed private offering of $1.1 billion aggregate principal amount of convertible senior notes due 2031, subject to market conditions and other factors. The company intends to use a portion of the net proceeds to fund capped call transactions, up to $300 million to repurchase shares of its common stock, and the remaining net proceeds for general corporate purposes, which may include financing the acquisition of 27% of Rigaku Holdings Corporation. The notes will be senior unsecured obligations and will mature on June 1, 2031, unless earlier converted, redeemed, or repurchased. The interest rate, initial conversion rate, and other terms of the notes will be determined upon pricing of the offering.

Filer
Onto Innovation Inc. ONTO · NYSE
Filed
Accession
0001193125-26-227915
CIK
0000704532
Signal
Medium impactTechnology

Items reported

Item events

Reported Item

New Debt Issued Convertible Note Offering Share Repurchase Program Announced

Market reaction

Close before filing

$271.77

Next session

-8.7%

Since filing

-4.9%

Latest close

$258.58

What happened, not what will happen — closing prices around the filing date.

Precedent

Previous filings from ONTO reporting the same item, with the next session's move:

Insider tape

Within 45 days of this filing, ONTO insiders reported 9 Form 4 transactions — net selling of $373K.

Full ONTO insider history →

About Onto Innovation Inc.

Onto Innovation Inc. is a leading company specializing in the development and provision of comprehensive metrology and inspection solutions for the semiconductor industry. Its primary function is to provide advanced analysis tools that ensure semiconductor manufacturers maintain high levels of quality and performance in their products. Onto Innovation's technology enables precise measurements and inspections, critical in the production of various electronic components including memory devices, logic chips, and power management systems. Notable for its cutting-edge technology, Onto Innovation’s systems are pivotal in the fabrication of nanoscale devices. The company serves a wide market including foundries, integrated device manufacturers (IDMs), and research institutions, impacting sectors such as consumer electronics, automotive, and telecommunications. With an ongoing evolution in electronics and the push for miniaturization, Onto Innovation plays a crucial role. In the financial market, Onto Innovation Inc. stands out as a key player in the semiconductor supply chain, known for its innovation and contributions to the emerging trends in semiconductor technology. Its market significance is underscored by its ability to adapt to the fast-paced advancements in the semiconductor industry, making it a critical enabler of future technological advancements.

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