ONTO INNOVATION INC. 8-K

What Happened

• Onto Innovation Inc. announced on May 21, 2026 that it issued $1,500,000,000 aggregate principal amount of 0.00% Convertible Senior Notes due 2031 under an Indenture with U.S. Bank Trust Company, N.A. The initial purchasers exercised their option to buy an additional $200,000,000 of notes prior to issuance.
• Concurrent with the offering, Onto entered into privately negotiated capped call transactions with financial institutions to limit potential dilution from conversions (initial cap price $509.06 per share). The company also used $204,979,372.25 of net proceeds to repurchase 805,325 shares of common stock at $254.53 per share on May 18, 2026.

Key Details

• Principal amount issued: $1,500,000,000 (includes $200M option exercised).
• Coupon / interest: 0.00% regular interest; special/additional interest may accrue up to 0.50% per annum upon certain events (e.g., late filings or restrictions on tradability).
• Maturity and convertibility: Notes mature June 1, 2031. Convertible at holder option on/after March 1, 2031; earlier conversion only if specific stock-price or trading-price tests or certain corporate events occur.
• Conversion terms: Initial conversion rate 2.6192 shares per $1,000 principal (= ~ $381.80 per share initial conversion price); conversion settlement may be cash, shares, or a mix. Conversion rate subject to adjustment; maximum increase limited (not to exceed 3.9288 shares per $1,000 principal, subject to adjustments).
• Capped calls: Separate transactions intended to reduce dilution and offset potential cash conversion payments; initial cap price $509.06 (100% premium to the $254.53 last sale price on May 18, 2026).
• Security and ranking: Notes are senior, unsecured obligations — pari passu with other senior unsecured debt, senior to subordinated debt, effectively subordinated to secured debt and structurally subordinated to subsidiary liabilities.
• Stock repurchase: $204,979,372.25 used to buy 805,325 shares at $254.53 each in private transactions effected with/through an initial purchaser or affiliate.

Why It Matters

• Financing and capital structure: The transaction raises $1.5B of capital without regular interest payments, which can preserve near‑term cash flow but creates potential future equity dilution if notes convert. The capped calls limit dilution above a high share‑price threshold.
• Investor impact: Existing shareholders saw an immediate $205M buyback of common stock (805k shares) funded from proceeds, which reduces share count now; however, conversion mechanics mean dilution could occur later if notes convert to equity.
• Credit and ranking: Because the notes are senior unsecured, they affect the company’s debt profile and rank ahead of any future subordinated debt but behind secured creditors, which is relevant for creditors and bond investors.
• Trigger events and additional interest: Certain failures (e.g., delinquent SEC filings or restricted tradability) can cause additional interest to accrue up to 0.50%, creating downside protections for noteholders and a compliance incentive for the company.