Offerings // CRESCENT BIOPHARMA, INC.

CBIO offering history

Every offering-related filing in CRESCENT BIOPHARMA, INC.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 660 filings back to Jul 10, 2003.

Last executed offering

Jul 15, 2026

424B5 — priced deal (shares or notes)

Last registration (announced)

Jul 1, 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
Jul 30, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jul 15, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 14, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 10, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jul 1, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jun 22, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Apr 29, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 17, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 3, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Feb 26, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 15, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 15, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 7, 2026	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Dec 4, 2025	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
May 14, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
May 14, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 29, 2024	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Apr 28, 2022	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 22, 2022	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 4, 2022	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Oct 7, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 28, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 17, 2019	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Mar 21, 2018	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 19, 2018	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 6, 2017	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 6, 2017	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 6, 2017	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Sep 28, 2017	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
May 24, 2017	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 22, 2017	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 17, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 16, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 2, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 1, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 24, 2015	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 17, 2015	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jan 10, 2014	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Jan 9, 2014	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 7, 2014	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet

CBIO 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 CBIO workspace →

CBIO offering FAQ

When did CBIO last execute an offering?

Per SEC filings, CRESCENT BIOPHARMA, INC.'s most recent priced offering document is a 424B5 filed 2026-07-15. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did CBIO last announce or register an offering?

The most recent registration is a S-3 filed 2026-07-01. 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.