Offerings // electroCore, Inc.

ECOR offering history

Every offering-related filing in electroCore, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 474 filings back to Nov 26, 2012.

Last executed offering

Nov 29, 2024

424B5 — priced deal (shares or notes)

Last registration (announced)

Oct 3, 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
Oct 24, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Oct 3, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jul 24, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jul 18, 2025	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Jan 31, 2025	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Jan 24, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Nov 29, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 23, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jul 22, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jul 18, 2024	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Jul 10, 2024	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Jun 4, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 3, 2024	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Sep 1, 2023	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Aug 31, 2023	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Aug 24, 2023	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Aug 2, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 31, 2023	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jan 25, 2022	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 18, 2022	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Aug 30, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 30, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 29, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 2, 2020	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 27, 2020	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Apr 20, 2020	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Mar 30, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 5, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Aug 30, 2019	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Aug 16, 2019	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Jul 15, 2019	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jun 25, 2018	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Jun 21, 2018	S-1MEF →	REGISTERED	S-1MEF registration — capacity to sell shares, not a sale yet
Jun 21, 2018	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jun 15, 2018	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Jun 11, 2018	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Jun 5, 2018	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
May 21, 2018	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet

ECOR 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 ECOR workspace →

ECOR offering FAQ

When did ECOR last execute an offering?

Per SEC filings, electroCore, Inc.'s most recent priced offering document is a 424B5 filed 2024-11-29. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did ECOR last announce or register an offering?

The most recent registration is a S-3 filed 2025-10-03. 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.