Offerings // CALAMOS CONVERTIBLE & HIGH INCOME FUND

CHY offering history

Every offering-related filing in CALAMOS CONVERTIBLE & HIGH INCOME FUND’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 479 filings back to Mar 14, 2003.

Last executed offering

Feb 24, 2025

424B5 — priced deal (shares or notes)

Last registration (announced)

None found

in filings back to Mar 14, 2003

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
Aug 29, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Feb 24, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 20, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Sep 19, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Oct 3, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 2, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 3, 2022	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 19, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 3, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 20, 2021	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Sep 30, 2021	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Aug 27, 2021	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 5, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 1, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Feb 28, 2018	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 4, 2016	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Sep 30, 2011	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 13, 2010	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 10, 2009	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 11, 2008	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jun 15, 2006	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin

CHY 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 CHY workspace →

CHY offering FAQ

When did CHY last execute an offering?

Per SEC filings, CALAMOS CONVERTIBLE & HIGH INCOME FUND's most recent priced offering document is a 424B5 filed 2025-02-24. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did CHY last announce or register an offering?

No offering registration (S-1/S-3/F-1/F-3) appears in the filings reviewed back to 2003-03-14.

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.