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Offerings // Shuttle Pharmaceuticals Holdings, Inc.

SHPH offering history

Every offering-related filing in Shuttle Pharmaceuticals Holdings, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 296 filings back to Jan 31, 2019.

Last executed offering
May 7, 2026
8-K — priced deal (shares or notes)
Last registration (announced)
Feb 11, 2026
S-1 — capacity, not a sale
Executed, last 12 months
5
424B pricings + 8-K 3.02 sales
Registered, last 12 months
4
S-1/S-3/F-series registrations
DateFilingWhat it means
May 7, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
May 1, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Mar 9, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 17, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Feb 11, 2026S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Feb 11, 2026S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Feb 2, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jan 30, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Dec 29, 20258-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Dec 11, 2025S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Nov 26, 20258-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Nov 18, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Nov 7, 20258-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Aug 11, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Aug 11, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Aug 5, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Jun 25, 20258-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Mar 13, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 7, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Mar 5, 2025S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Feb 27, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 27, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 27, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 13, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Jan 24, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jan 23, 2025EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Jan 22, 2025RW →WITHDRAWNRegistration withdrawn
Jan 15, 2025S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Oct 31, 2024424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
Oct 29, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Oct 25, 20248-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Oct 18, 2024S-1/A →REGISTEREDS-1/A registration — capacity to sell shares, not a sale yet
Oct 17, 20248-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Sep 20, 2024S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Sep 16, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Apr 5, 2024S-1 →REGISTEREDS-1 registration — capacity to sell shares, not a sale yet
Mar 22, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 13, 20248-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Aug 24, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 1, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
SHPH 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 SHPH workspace →
SHPH offering FAQ

When did SHPH last execute an offering?

Per SEC filings, Shuttle Pharmaceuticals Holdings, Inc.'s most recent priced offering document is a 8-K filed 2026-05-07. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did SHPH last announce or register an offering?

The most recent registration is a S-1 filed 2026-02-11. 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.