Offerings // Immix Biopharma, Inc.

IMMX offering history

Every offering-related filing in Immix Biopharma, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 238 filings back to Jul 20, 2021.

Last executed offering

May 21, 2026

424B5 — priced deal (shares or notes)

Last registration (announced)

Jan 9, 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 21, 2026	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 21, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 25, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 22, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 9, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Dec 8, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Dec 8, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 1, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 6, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Sep 8, 2025	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jun 3, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 20, 2024	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Feb 7, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Feb 5, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 28, 2023	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Sep 25, 2023	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Aug 22, 2023	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jul 14, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 22, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 18, 2023	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jan 11, 2023	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 3, 2023	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jul 19, 2022	RW →	WITHDRAWN	Registration withdrawn
May 27, 2022	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
May 27, 2022	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Dec 17, 2021	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Dec 15, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 1, 2021	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Nov 4, 2021	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Oct 28, 2021	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Oct 15, 2021	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Oct 6, 2021	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Sep 17, 2021	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet

IMMX 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 IMMX workspace →

IMMX offering FAQ

When did IMMX last execute an offering?

Per SEC filings, Immix Biopharma, Inc.'s most recent priced offering document is a 424B5 filed 2026-05-21. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did IMMX last announce or register an offering?

The most recent registration is a S-3 filed 2026-01-09. 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.