Form 8-K

8-K — MILESTONE SCIENTIFIC INC.

Accession: 0001493152-26-035264

Filed: 2026-07-29

Period: 2026-07-24

CIK: 0000855683

SIC: 3842 (ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES)

Item: Other Events

Item: Financial Statements and Exhibits

Documents

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UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

Washington,

D.C. 20549

FORM

8-K

CURRENT

REPORT

Pursuant

to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date

of Report (Date of earliest event reported): July 24, 2026

Milestone

Scientific Inc.

(Exact

name of registrant as specified in its charter)

Delaware

001-14053

13-3545623

(State

or other jurisdiction

incorporation)

(Commission

File

Number)

(IRS

Employer

Identification

No.)

425

Eagle Rock Road, Ste 403,

Roseland,

New Jersey 07068

(Address

of principal executive offices) (Zip

Code)

Registrant’s

telephone number, including area code (973) 535-2717

N/A

(Former

name or former address, if changed since last report.)

Check

the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under

any of the following provisions:

☐ Written

communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting

material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement

communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement

communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities

registered pursuant to Section 12(b) of the Act:

Title

of each class

Trading

Symbol(s)

Name

on exchange on which registered

Common

Stock

MLSS

NYSE

American

Indicate

by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405

of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging

growth company ☐

an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying

with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act ☐

Item

8.01 — Other Events

July 24, 2026, Milestone Scientific Inc. (the “Company”) received notices of conversion (the “Conversion Notices”)

from Benedetta Casamento, Dr. Didier Demesmin and Neal Goldman, each of whom is a director of the Company (collectively, the “Holders”),

with respect to the Company’s amended and restated promissory notes held by the Holders (the “Convertible Bridge Notes”).

previously disclosed, the Convertible Bridge Notes were originally issued in an aggregate principal amount of $800,000 and were partially

converted in connection with the Company’s private placement that closed on April 20, 2026. The Conversion Notices constitute the

Holders’ elections, pursuant to Section 5(a) of the Convertible Bridge Notes, to convert the remaining outstanding principal amount

and accrued interest under their respective Convertible Bridge Notes into shares of the Company’s common stock, par value $0.001

per share (the “Common Stock”). After such partial conversions, the outstanding principal amounts of the Convertible Bridge

Notes covered by the Conversion Notices held by each of the Holders are as follows: $116,495.47 for Ms. Casamento; $58,247.73 for Dr.

Demesmin; and $291,238.66 for Mr. Goldman.

Pursuant

to the Conversion Notices and the Convertible Bridge Notes, the conversions will become effective automatically at such time as the Fair

Value (as defined in the Convertible Bridge Notes) of the Common Stock is not less than $0.50 per share and the applicable Holder is

permitted to buy and sell securities of the Company in compliance with the Company’s Insider Trading Policy. No shares of Common

Stock have been issued pursuant to the Conversion Notices as of the date of this Current Report on Form 8-K.

Item

9.01 — Financial Statements and Exhibits

(d)

Exhibits.

Exhibit

No.

Description

99.1

Form

of Notice of Conversion of Promissory Note

104

Cover

Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant

to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by

the undersigned hereunto duly authorized.

MILESTONE

SCIENTIFIC INC.

Dated: July 29, 2026

By:

/s/

Eric Hines

Eric

Hines

Chief

Executive Officer

EX-99.1

Filename: ex99-1.htm · Sequence: 2

Exhibit

99.1

Form

of Notice of Conversion

Promissory

Note

(pursuant

to Section 5(a) of the Note)

Reference

is hereby made to that certain Promissory Note of Milestone Scientific Inc. (the “Company”) dated April 8, 2025, as amended,

issued to the undersigned holder in the original principal amount of [●] (the “Note”) and on April 20, 2026

partially converted into shares of the Company, issued as part of a series of promissory notes in the aggregate principal amount of $800,000.

Terms used herein as defined terms and not defined herein shall have the meaning ascribed thereto in the Note.

The

undersigned holder of the Note hereby notifies the Company of its election, pursuant to Section 5(a) of the Note, to convert the entire

unpaid principal amount of and accrued interest on the Note effective, without any further or other notice to the Company, at such time

as the Fair Value of the shares of Common Stock of the Company shall be not less than $0.50 per share; provided that the undersigned

shall then be entitled to buy and sell securities of the Company in compliance with the Insider Trading Policy of the Company, including

without limitation obtaining any necessary pre-clearance.

Name

of Holder: [●]

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Entity File Number

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Entity Registrant Name

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Entity Central Index Key

0000855683

Entity Tax Identification Number

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Entity Incorporation, State or Country Code

Entity Address, Address Line One

425

Eagle Rock Road

Entity Address, Address Line Two

Ste 403

Entity Address, City or Town

Roseland

Entity Address, State or Province

Entity Address, Postal Zip Code

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City Area Code

973

Local Phone Number

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