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Offerings // Pasithea Therapeutics Corp.

KTTA offering history

Every offering-related filing in Pasithea Therapeutics Corp.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 344 filings back to Jan 29, 2021.

Last executed offering
Dec 2, 2025
8-K — priced deal (shares or notes)
Last registration (announced)
Nov 26, 2025
S-1/A — capacity, not a sale
Executed, last 12 months
2
424B pricings + 8-K 3.02 sales
Registered, last 12 months
2
S-1/S-3/F-series registrations
DateFilingWhat it means
Jan 27, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Dec 2, 20258-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Dec 1, 2025424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Nov 28, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Nov 26, 2025S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Nov 18, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Jun 20, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 7, 2025424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
May 6, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
May 1, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Nov 26, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 11, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Oct 11, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Oct 7, 2024S-3 →REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Sep 30, 20248-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Apr 2, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jun 6, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 5, 2023EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
May 12, 2023S-3 →REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Apr 19, 2023EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Mar 30, 2023S-3 →REGISTEREDS-3 registration — capacity to sell shares, not a sale yet
Nov 30, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Nov 30, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Oct 12, 20228-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Sep 16, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 16, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 22, 20228-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Apr 18, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Apr 18, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 22, 2021424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 21, 2021424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 21, 2021424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Dec 16, 2021EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Dec 9, 2021S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Nov 29, 20218-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Sep 16, 2021424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Sep 14, 2021S-1MEF →REGISTEREDS-1MEF registration — capacity to sell shares, not a sale yet
Sep 14, 2021EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Sep 13, 2021S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Sep 10, 2021S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
KTTA 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 KTTA workspace →
KTTA offering FAQ

When did KTTA last execute an offering?

Per SEC filings, Pasithea Therapeutics Corp.'s most recent priced offering document is a 8-K filed 2025-12-02. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did KTTA last announce or register an offering?

The most recent registration is a S-1/A filed 2025-11-26. 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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