ONTO INNOVATION INC. 8-K

What Happened
ONTO INNOVATION INC. filed a Form 8-K on May 18, 2026, disclosing a press release announcing the company plans to commence, subject to market conditions and other factors, a private offering of $1,100,000,000 aggregate principal amount of convertible senior notes due 2031. The offering is targeted to persons reasonably believed to be qualified institutional buyers under Rule 144A. The press release is attached as Exhibit 99.1 to the filing.

Key Details

• Offering size: $1,100,000,000 aggregate principal amount of convertible senior notes due 2031.
• Target investors: Qualified institutional buyers under Rule 144A (private offering).
• Intended use of proceeds (per the press release): concurrent share repurchases and capped call transactions.
• Filing date: Form 8-K filed May 18, 2026; the company included customary forward‑looking statements and referenced risk disclosures in its 2025 Form 10-K (filed Feb 24, 2026) and 2026 Q1 Form 10-Q (filed May 5, 2026).

Why It Matters
This planned convertible note offering would increase ONTO’s debt on the balance sheet while providing cash that the company says it intends to use for share repurchases and capped call hedges. For investors, key items to watch next are the final terms of the notes (interest rate, conversion rate, and covenants), whether the offering completes, and how any share repurchases and capped-call transactions affect dilution and capital structure. The company cautioned the offering is subject to market conditions and included standard forward‑looking risk disclosures.