Mark Lawrence Vorsatz - 02 Feb 2026 Form 4 Insider Report for Andersen Group Inc. (ANDG)

Reporting relationship: Chairman and Chief Executive Officer, Director
Issuer ticker: ANDG
Reported as of: 02 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Feb 2026, 16:13:38 UTC
Prior SEC filing: 16 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ William Deckelman as attorney-in-fact

Key filing fact

Mark Lawrence Vorsatz filed Form 4 for Andersen Group Inc. (ANDG) on 04 Feb 2026.

Key facts

This page summarizes Mark Lawrence Vorsatz's Form 4 filing for Andersen Group Inc. (ANDG).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 04 Feb 2026, 16:13.

Change

Previous filing in this sequence was filed on 16 Dec 2025.
Current net transaction value: $0.

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 0002071142 Primary reporting owner

Vorsatz Mark Lawrence

Relationship: Chairman and Chief Executive Officer, Director
Address: C/O ANDERSEN GROUP, INC., 333 BUSH STREET, SUITE 1700, SAN FRANCISCO
Signature: /s/ William Deckelman as attorney-in-fact
Signature date: 04 Feb 2026

Reported derivative securities

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

ANDG transaction Derivative

Class X Aggregator Units

Gift

Transaction value
Shares: -200,000
Change %: -3.8%
Price
Shares after: 5,000,000
Date: 02 Feb 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 200,000
Exercise price
Footnotes: F1, F2, F3

ANDG transaction Derivative

Class X Aggregator Units

Gift

Transaction value
Shares: +200,000
Change %: +11%
Price
Shares after: 2,000,000
Date: 02 Feb 2026
Ownership: See footnote
Underlying class: Class A Common Stock
Underlying amount: 200,000
Exercise price
Footnotes: F1, F2, F3, F4

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Pursuant to the terms of the Amended and Restated Limited Liability Company Agreement of Andersen Aggregator LLC ("Aggregator") dated as of December 16, 2025 (the "Aggregator LLCA"), as disclosed in the prospectus of Andersen Group Inc. (the "Issuer"), the Class X Aggregator Units held by the Reporting Person are ultimately exchangeable for cash or, at the Issuer's election, shares of Class A common stock on a one-for-one basis, subject to customary conversion rate adjustments and compliance with lock-up, vesting and transfer restrictions and the terms of the Aggregator LLCA. Upon an exchange of the Class X Aggregator Units, an equal number of shares of Class B common stock of the Issuer accompanying the Class X Aggregator Units and held by Andersen Aggregator LLC or its permitted transferee will be automatically cancelled for no additional consideration. Shares of Class B Common Stock do not represent economic interests in the Issuer.

Footnote F2

The reported transaction reflects a transfer from the Reporting Person's direct holdings to a trust controlled by the Reporting Person, for no consideration. The securities continue to be subject to the lock-up restrictions described in the Issuer's prospectus filed with the Securities and Exchange Commission on December 17, 2025.

Footnote F3

The reported units shall be vested with respect to 50% of the shares as of December 16, 2025, and shall vest annually thereafter in equal installments over the following five years, subject to the Reporting Person's continuous service to the Issuer through each such vesting date.

Footnote F4

Consists of (i) 1,400,000 Class X Aggregator Units held by entities controlled by and/or affiliated with the Reporting Person which are indirectly exchangeable for 1,400,000 shares of Class A common stock and (ii) 600,000 Class X Aggregator Units held by immediate family members of the Reporting Person which are indirectly exchangeable for 600,000 shares of Class A common stock, and over which the Reporting Person exercises voting control. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC remarks

Chairman and Chief Executive Officer