Driehaus reports 5.44% stake in Andersen Group

Driehaus Capital Management LLC has filed a Schedule 13G reporting a passive ownership stake in Andersen Group Inc. Class A common stock.

Rhea-AI Filing Summary

Driehaus Capital Management LLC has filed a Schedule 13G reporting a passive ownership stake in Andersen Group Inc. Class A common stock. Driehaus reports beneficial ownership of 688,666 shares, representing 5.44% of the class, with shared voting and shared dispositive power over all reported shares.

The shares are held in numerous discretionary client accounts managed by Driehaus, and the firm states they were acquired and are held in the ordinary course of business. Driehaus certifies the holdings are not intended to change or influence control of Andersen Group.

FAQ

What percentage of Andersen Group (ANDG) shares does Driehaus Capital Management report owning?

Driehaus Capital Management reports beneficial ownership of 5.44% of Andersen Group Inc. Class A common stock. This represents 688,666 shares, held across numerous discretionary client accounts, with Driehaus having shared voting and shared dispositive power over these securities.

How many Andersen Group (ANDG) shares are beneficially owned by Driehaus Capital Management?

Driehaus Capital Management reports beneficial ownership of 688,666 Andersen Group Inc. Class A shares. These shares are held for numerous clients in discretionary accounts, with Driehaus exercising shared authority to vote and to dispose of the securities on behalf of those clients.

Is Driehaus Capital Management acting as a passive investor in Andersen Group (ANDG)?

Yes. Driehaus Capital Management certifies the Andersen Group shares were acquired and are held in the ordinary course of business. It states they were not acquired to change or influence control of Andersen Group, consistent with a passive investment under Schedule 13G.

Who actually holds the Andersen Group (ANDG) shares reported by Driehaus Capital Management?

The Andersen Group shares reported by Driehaus are held by numerous clients in discretionary accounts managed by Driehaus Capital Management. The filing explains that these client accounts hold the securities, while Driehaus has shared voting and dispositive power over the reported holdings.

Does any single Driehaus client own more than 5% of Andersen Group (ANDG)?

According to the filing, Driehaus believes none of its referenced clients has the right to receive dividends or sale proceeds relating to more than 5% of the class. The 5.44% position reflects aggregate holdings across multiple client accounts managed by Driehaus.

What type of security in Andersen Group (ANDG) is covered by the Driehaus Schedule 13G?

The Schedule 13G covers Class A Common Stock of Andersen Group Inc. Driehaus Capital Management reports beneficial ownership and shared voting and dispositive power over these common shares, which are held in the firm’s fully discretionary client accounts.

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Accepted by SEC EDGAR 02/17/2026 - 09:19 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Andersen Group Inc.

(Name of Issuer)

Class A Common Stock

(Title of Class of Securities)

033853102

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 033853102

1

Names of Reporting Persons

DRIEHAUS CAPITAL MANAGEMENT LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 688,666.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 688,666.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

688,666.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.44 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Andersen Group Inc.
(b)	Address of issuer's principal executive offices: 333 Bush Street, Suite 1700, San Francisco, California, 94104
Item 2.
(a)	Name of person filing: Driehaus Capital Management LLC
(b)	Address or principal business office or, if none, residence: 25 East Erie Street, Chicago, Illinois 60611
(c)	Citizenship: USA
(d)	Title of class of securities: Class A Common Stock
(e)	CUSIP No.: 033853102
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 688666
(b)	Percent of class: 5.44 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 688666
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 688666
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The shares reported by Driehaus Capital Management LLC (DCM) are held by numerous clients on a fully discretionary basis in accounts managed by DCM. Securities held in these clients' accounts are included in this report to reflect that DCM may have voting power and has dispositive power. To the best of DCM's knowledge, none of the referenced clients have the right to receive dividends or direct proceeds from the sale of interests relating to more than 5% of the class.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

DRIEHAUS CAPITAL MANAGEMENT LLC

Signature:	Janet McWilliams
Name/Title:	Janet McWilliams/General Counsel
Date:	02/17/2026