Offerings // Castellum, Inc.

CTM offering history

Every offering-related filing in Castellum, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 301 filings back to Oct 19, 2021.

Last executed offering
Jun 12, 2025
424B5 — priced deal (shares or notes)
Last registration (announced)
Jan 22, 2025
S-3/A — capacity, not a sale
Executed, last 12 months
0
424B pricings + 8-K 3.02 sales
Registered, last 12 months
0
S-1/S-3/F-series registrations
DateFilingWhat it means
Jun 12, 2025424B5EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 11, 2025424B5EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 17, 2025424B5EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 14, 2025424B5EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 24, 2025EFFECTEFFECTIVESEC declared a registration effective — selling can begin
Jan 22, 2025S-3/AREGISTEREDS-3/A registration — capacity to sell shares, not a sale yet
Jan 10, 2025S-3REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Dec 30, 2024424B5EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 27, 2024424B5EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 23, 2024424B5EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 18, 2024424B2EXECUTEDProspectus supplement priced — shares or notes (large filers: often a bond deal)
Apr 18, 2024EFFECTEFFECTIVESEC declared a registration effective — selling can begin
Apr 8, 2024S-3REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Jan 29, 2024424B5EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 12, 2023EFFECTEFFECTIVESEC declared a registration effective — selling can begin
Dec 1, 2023S-3REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Mar 28, 20238-KEXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Oct 18, 20228-KEXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Oct 14, 2022424B4EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Oct 14, 2022424B4EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Oct 12, 2022EFFECTEFFECTIVESEC declared a registration effective — selling can begin
Oct 11, 2022S-1/AREGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Oct 6, 2022S-1/AREGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Oct 4, 2022S-1/AREGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Sep 30, 2022S-1/AREGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Sep 2, 2022S-1REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
CTM 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.

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CTM offering FAQ

When did CTM last execute an offering?

Per SEC filings, Castellum, Inc.'s most recent priced offering document is a 424B5 filed 2025-06-12. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did CTM last announce or register an offering?

The most recent registration is a S-3/A filed 2025-01-22. 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.