Offerings // AmpliTech Group, Inc.

AMPG offering history

Every offering-related filing in AmpliTech Group, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 404 filings back to Apr 19, 2011.

Last executed offering

Jan 26, 2026

424B5 — priced deal (shares or notes)

Last registration (announced)

Jul 31, 2025

S-3/A — 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
Jan 26, 2026	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 5, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 5, 2026	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 30, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 30, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 8, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Dec 8, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Nov 3, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 30, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 5, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 4, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jul 31, 2025	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Jul 22, 2025	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Apr 30, 2025	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Mar 24, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 30, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 26, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 17, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 13, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Nov 26, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 11, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 24, 2024	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 19, 2024	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Apr 12, 2024	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jul 22, 2022	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 2, 2022	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 27, 2022	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Apr 21, 2022	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Dec 20, 2021	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
May 12, 2021	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
May 11, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 30, 2021	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Apr 16, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 15, 2021	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Apr 14, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 1, 2021	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Feb 18, 2021	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Feb 16, 2021	S-1MEF →	REGISTERED	S-1MEF registration — capacity to sell shares, not a sale yet
Feb 16, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Feb 5, 2021	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet

AMPG 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 AMPG workspace →

AMPG offering FAQ

When did AMPG last execute an offering?

Per SEC filings, AmpliTech Group, Inc.'s most recent priced offering document is a 424B5 filed 2026-01-26. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did AMPG last announce or register an offering?

The most recent registration is a S-3/A filed 2025-07-31. 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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