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Offerings // AIM ImmunoTech Inc.

AIM offering history

Every offering-related filing in AIM ImmunoTech Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,002 filings back to Dec 23, 2013.

Last executed offering
Sep 14, 2026
8-K — priced deal (shares or notes)
Last registration (announced)
Jun 18, 2026
S-1 — capacity, not a sale
Executed, last 12 months
12
424B pricings + 8-K 3.02 sales
Registered, last 12 months
6
S-1/S-3/F-series registrations
DateFilingWhat it means
Sep 14, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Sep 10, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Sep 4, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Jun 24, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 23, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jun 18, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Jun 18, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 16, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jun 11, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Jun 10, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 8, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
May 21, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 21, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
May 19, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 12, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
May 8, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Apr 10, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Feb 27, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 17, 2026424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Feb 10, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Feb 10, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jan 29, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Jan 23, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Dec 12, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Oct 30, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 30, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 28, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jul 22, 2025S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Jul 15, 2025S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Jul 3, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jun 27, 2025S-3/A →REGISTEREDS-3/A registration — capacity to sell shares, not a sale yet
Apr 1, 2025S-3 →REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Feb 7, 2025S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Feb 3, 2025S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Jan 23, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Dec 4, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 4, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Nov 15, 2024S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Oct 1, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 1, 20248-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
AIM 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 AIM workspace →
AIM offering FAQ

When did AIM last execute an offering?

Per SEC filings, AIM ImmunoTech Inc.'s most recent priced offering document is a 8-K filed 2026-09-14. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did AIM last announce or register an offering?

The most recent registration is a S-1 filed 2026-06-18. 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.

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