Offerings // QT IMAGING HOLDINGS, INC.

QTI offering history

Every offering-related filing in QT IMAGING HOLDINGS, INC.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 430 filings back to Feb 23, 2021.

Last executed offering

May 15, 2026

424B5 — priced deal (shares or notes)

Last registration (announced)

Mar 27, 2026

S-3 — 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 15, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 3, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 31, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 31, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 31, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 27, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jan 29, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 23, 2026	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Dec 31, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 31, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 29, 2025	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Nov 3, 2025	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Oct 1, 2025	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Apr 10, 2025	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Mar 3, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 3, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Feb 28, 2025	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Feb 5, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Feb 5, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 31, 2025	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Jan 28, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 24, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 16, 2025	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Jan 10, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 23, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 15, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 4, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Oct 1, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Sep 20, 2024	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Sep 13, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Aug 8, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jul 15, 2024	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Jul 10, 2024	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Jul 3, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
May 22, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
May 22, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 20, 2024	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
May 16, 2024	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Apr 24, 2024	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Apr 2, 2024	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet

QTI 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.

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QTI offering FAQ

When did QTI last execute an offering?

Per SEC filings, QT IMAGING HOLDINGS, INC.'s most recent priced offering document is a 424B5 filed 2026-05-15. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did QTI last announce or register an offering?

The most recent registration is a S-3 filed 2026-03-27. 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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