Offerings // MAGNACHIP SEMICONDUCTOR Corp

MX offering history

Every offering-related filing in MAGNACHIP SEMICONDUCTOR Corp’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 965 filings back to Apr 26, 2005.

Last executed offering

Jun 17, 2026

424B5 — priced deal (shares or notes)

Last registration (announced)

Jun 12, 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
Jun 17, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 17, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 16, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jun 12, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Aug 11, 2017	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Aug 9, 2017	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
May 11, 2017	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 1, 2017	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jan 17, 2017	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Oct 18, 2013	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Oct 18, 2013	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Sep 11, 2013	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Sep 9, 2013	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Feb 6, 2013	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Feb 4, 2013	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
May 2, 2012	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Apr 26, 2012	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Apr 26, 2012	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 13, 2012	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
May 4, 2011	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 29, 2011	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 18, 2011	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 11, 2011	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Mar 10, 2011	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Mar 10, 2011	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 1, 2011	RW →	WITHDRAWN	Registration withdrawn
Feb 18, 2011	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Feb 1, 2011	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Nov 8, 2010	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 4, 2010	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Oct 18, 2010	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Oct 18, 2010	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Oct 15, 2010	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 15, 2010	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 14, 2010	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Oct 4, 2010	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Oct 4, 2010	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Sep 3, 2010	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Aug 12, 2010	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Jul 30, 2010	FWP →	MARKETING	Free-writing prospectus — offering being marketed

MX 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 MX workspace →

MX offering FAQ

When did MX last execute an offering?

Per SEC filings, MAGNACHIP SEMICONDUCTOR Corp's most recent priced offering document is a 424B5 filed 2026-06-17. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did MX last announce or register an offering?

The most recent registration is a S-3 filed 2026-06-12. 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.