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Offerings // HCW Biologics Inc.

HCWB offering history

Every offering-related filing in HCW Biologics Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 340 filings back to Oct 19, 2020.

Last executed offering
Sep 24, 2026
8-K — priced deal (shares or notes)
Last registration (announced)
Oct 2, 2026
S-1 — capacity, not a sale
Executed, last 12 months
5
424B pricings + 8-K 3.02 sales
Registered, last 12 months
11
S-1/S-3/F-series registrations
DateFilingWhat it means
Oct 9, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Oct 2, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Sep 24, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Aug 31, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Aug 28, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Aug 20, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Jul 29, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Jun 18, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Jun 18, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jun 8, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
May 21, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Apr 29, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Apr 24, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Apr 23, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Feb 19, 2026424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Feb 17, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Feb 17, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Feb 13, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Feb 11, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Jan 29, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jan 9, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Nov 20, 20258-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
May 15, 2025424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
May 13, 2025S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
May 13, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
May 9, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Apr 16, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Apr 16, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Apr 7, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Nov 20, 2024424B2 →EXECUTEDProspectus supplement priced — shares or notes (large filers: often a bond deal)
Nov 20, 20248-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Feb 22, 20248-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Aug 26, 2022EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Aug 19, 2022S-3 →REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Jul 21, 2021424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Jul 19, 2021S-1MEF →REGISTEREDS-1MEF registration — capacity to sell shares, not a sale yet
Jul 19, 2021EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jul 12, 2021FWP →MARKETINGFree-writing prospectus — offering being marketed
Jul 9, 2021S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Jul 7, 2021S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
HCWB 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 HCWB workspace →
HCWB offering FAQ

When did HCWB last execute an offering?

Per SEC filings, HCW Biologics Inc.'s most recent priced offering document is a 8-K filed 2026-09-24. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did HCWB last announce or register an offering?

The most recent registration is a S-1 filed 2026-10-02. 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.