Louisa Sanfratello - 28 May 2026 Form 4 Insider Report for AmpliTech Group, Inc. (AMPG)

Reporting relationship: Chief Financial Officer, Director
Issuer ticker: AMPG
Reported as of: 28 May 2026
Net transaction value: -$240,140
SEC form: 4
Accepted by SEC: 29 May 2026, 16:20:21 UTC
Prior SEC filing: 03 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Louisa Sanfratello

Key filing fact

Louisa Sanfratello filed Form 4 for AmpliTech Group, Inc. (AMPG) on 29 May 2026.

Key facts

This page summarizes Louisa Sanfratello's Form 4 filing for AmpliTech Group, Inc. (AMPG).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 29 May 2026, 16:20.

Change

Previous filing in this sequence was filed on 03 Feb 2026.
Current net transaction value: -$240,140.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001577896 Primary reporting owner

Sanfratello Louisa

Relationship: Chief Financial Officer, Director
Address: C/O AMPLITECH GROUP, INC, 155 PLANT AVENUE, HAUPPAUGE,
Signature: /s/ Louisa Sanfratello
Signature date: 29 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMPG transaction

Common Stock

Options Exercise

Transaction value
Shares: +50,000
Change %: +83%
Price: $3.52^*
Shares after: 110,000
Date: 28 May 2026
Ownership: Direct
Footnotes: F1

AMPG transaction

Common Stock

Sale

Transaction value: $240,140
Shares: -50,000
Change %: -45%
Price: $4.80
Shares after: 60,000
Date: 28 May 2026
Ownership: Direct
Footnotes: F2, F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

AMPG transaction Derivative

Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -50,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 28 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 50,000
Exercise price: $3.52
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents the exercise of options which were originally granted on November 26, 2021 and were fully vested on the date of grant.

Footnote F2

A portion of this sale includes the same-day sale of common stock to cover the exercise price, withholding tax obligations and broker fees and commissions, pursuant to a broker assisted cashless exercise of the fully vested stock options.

Footnote F3

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.78 to $4.87, inclusive. Upon request by the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate transaction.