Offerings // ONTO INNOVATION INC.

ONTO offering history

Every offering-related filing in ONTO INNOVATION INC.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,002 filings back to Jan 9, 2014.

Last executed offering

May 21, 2026

8-K — priced deal (shares or notes)

Last registration (announced)

Nov 26, 2025

S-3ASR — capacity, not a sale

Executed, last 12 months

424B pricings + 8-K 3.02 sales

Registered, last 12 months

S-1/S-3/F-series registrations

Date	Filing		What it means
May 21, 2026	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Nov 26, 2025	RW →	WITHDRAWN	Registration withdrawn
Nov 26, 2025	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Nov 21, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Nov 17, 2025	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jun 30, 2025	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Sep 10, 2019	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Sep 10, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 29, 2018	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)

ONTO offering-related filings from SEC EDGAR, newest first (capped at 40). Each links to the original document.

Two honest limits. (1) A 424B takedown can price shares or notes — EDGAR’s metadata doesn’t say which, so open the document: large investment-grade filers use these mostly for bond deals (no dilution), small-caps mostly for shares. (2) At-the-market (ATM) programs sell shares gradually and individual sales are not separately filed — the visible footprint is the enabling shelf and its 424B5; actual ATM share counts surface later in the 10-Q/10-K share count. Educational information from public filings, not investment advice.

Is a shelf active now? →Do they need money? →Red flags →Full ONTO workspace →

ONTO offering FAQ

When did ONTO last execute an offering?

Per SEC filings, ONTO INNOVATION INC.'s most recent priced offering document is a 8-K filed 2026-05-21. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did ONTO last announce or register an offering?

The most recent registration is a S-3ASR filed 2025-11-26. A registration is capacity to sell shares — not a sale.

Does an offering always mean dilution?

Registered direct offerings and shelf takedowns issue new shares and dilute existing holders. Resale registrations (424B3/B7) let existing holders sell and do not create new shares. Secondary sales by insiders also do not dilute. Each row here is labeled with what it is.

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