Offerings // Marker Therapeutics, Inc.

MRKR offering history

Every offering-related filing in Marker Therapeutics, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 903 filings back to Sep 3, 1999.

Last executed offering

Dec 23, 2024

8-K — priced deal (shares or notes)

Last registration (announced)

Jan 10, 2025

S-3 — capacity, not a sale

Executed, last 12 months

424B pricings + 8-K 3.02 sales

Registered, last 12 months

S-1/S-3/F-series registrations

Date	Filing		What it means
Aug 5, 2025	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Jan 17, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 17, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 10, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Dec 23, 2024	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Dec 6, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 6, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Nov 27, 2024	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Mar 22, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 3, 2023	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 30, 2022	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 23, 2022	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Dec 13, 2022	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Mar 18, 2022	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 19, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Aug 10, 2021	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Mar 15, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 11, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 3, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 25, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jun 14, 2019	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jan 29, 2019	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Nov 16, 2018	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 16, 2018	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 30, 2018	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Oct 17, 2018	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jun 21, 2018	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Jun 15, 2018	424B7 →	UPDATE	Resale prospectus — existing holders registering to sell
Jun 8, 2018	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
May 18, 2018	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
May 15, 2018	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Dec 29, 2017	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 29, 2017	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 28, 2017	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Sep 22, 2017	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Sep 20, 2017	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jun 26, 2017	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jun 22, 2017	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jan 19, 2017	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 18, 2017	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin

MRKR 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 MRKR workspace →

MRKR offering FAQ

When did MRKR last execute an offering?

Per SEC filings, Marker Therapeutics, Inc.'s most recent priced offering document is a 8-K filed 2024-12-23. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did MRKR last announce or register an offering?

The most recent registration is a S-3 filed 2025-01-10. 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.