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Offerings // XORTX Therapeutics Inc.

XRTX offering history

Every offering-related filing in XORTX Therapeutics Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 291 filings back to Jan 25, 2018.

Last executed offering
May 15, 2026
424B4 — priced deal (shares or notes)
Last registration (announced)
Feb 13, 2026
F-1/A — capacity, not a sale
Executed, last 12 months
1
424B pricings + 8-K 3.02 sales
Registered, last 12 months
1
S-1/S-3/F-series registrations
DateFilingWhat it means
May 15, 2026424B4 →EXECUTEDFinal prospectus — offering priced (typical for IPOs and marketed share deals)
May 13, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Feb 17, 2026EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Feb 13, 2026F-1/A →REGISTEREDF-1/A registration — capacity to sell shares, not a sale yet
Oct 23, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 25, 2025F-1 →REGISTEREDF-1 registration — capacity to sell shares, not a sale yet
Dec 13, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Nov 25, 2024EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Nov 22, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Nov 22, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Nov 15, 2024F-1 →REGISTEREDF-1 registration — capacity to sell shares, not a sale yet
Oct 18, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 17, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 24, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 24, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 24, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 24, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 24, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 24, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jul 12, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jul 12, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 13, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Nov 30, 2023424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 25, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Aug 25, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Aug 14, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Aug 14, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Aug 7, 2023EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
Aug 7, 2023EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
XRTX 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 XRTX workspace →
XRTX offering FAQ

When did XRTX last execute an offering?

Per SEC filings, XORTX Therapeutics Inc.'s most recent priced offering document is a 424B4 filed 2026-05-15. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did XRTX last announce or register an offering?

The most recent registration is a F-1/A filed 2026-02-13. 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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