Offerings // MILESTONE SCIENTIFIC INC.

MLSS offering history

Every offering-related filing in MILESTONE SCIENTIFIC INC.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 803 filings back to Aug 14, 1996.

Last executed offering

Jun 9, 2026

424B1 — priced deal (shares or notes)

Last registration (announced)

Jun 2, 2026

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
Jun 9, 2026	424B1 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Jun 9, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jun 2, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Apr 21, 2026	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Dec 12, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 8, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 30, 2023	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 19, 2023	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jun 26, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 25, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 9, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 8, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 20, 2019	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
May 16, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 2, 2019	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Feb 14, 2019	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Feb 1, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 31, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 16, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 15, 2016	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jul 22, 2016	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
May 4, 2016	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
May 4, 2016	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 26, 2016	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Apr 26, 2016	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Feb 10, 2016	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Feb 21, 2006	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Feb 13, 2006	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Feb 8, 2006	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Oct 31, 2005	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Sep 29, 2005	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Aug 19, 2005	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jun 7, 2005	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
May 23, 2005	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
May 6, 2005	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Oct 4, 2004	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Sep 3, 2004	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Feb 19, 2004	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Nov 26, 2003	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 5, 2003	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital

MLSS 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 MLSS workspace →

MLSS offering FAQ

When did MLSS last execute an offering?

Per SEC filings, MILESTONE SCIENTIFIC INC.'s most recent priced offering document is a 424B1 filed 2026-06-09. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did MLSS last announce or register an offering?

The most recent registration is a S-3 filed 2026-06-02. 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.