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): April 28, 2025

    

HORIZON KINETICS HOLDING CORPORATION

(Exact name of Registrant as Specified in Its Charter)


Delaware	001-13458	84-0920811
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

470 Park Ave S.
New York, New York		10016
(Address of Principal Executive Offices)		(Zip Code)

     Registrant’s Telephone Number, Including Area Code: (646) 291-2300

    

(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 obligation 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 of each exchange on which registered
None	N/A	N/A

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 ☐

If 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 4.01 Changes in Registrant’s Certifying Accountant.

Based on information provided by Marcum LLP (“Marcum”), the independent registered public accounting firm of Horizon Kinetics Holding Corporation, a Delaware corporation (the “Company”), CBIZ CPAs P.C. (“CBIZ CPAs”) acquired the attest business of Marcum, effective November 1, 2024. Marcum continued to serve as the Company’s independent registered public accounting firm through April 28, 2025. On April 28, 2025, the Company terminated its relationship with Marcum as the Company’s independent registered public accounting firm and, with the approval of the Audit Committee of the Company’s Board of Directors, engaged CBIZ CPAs on April 28, 2025 as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025.

Prior to engaging CBIZ CPAs, the Company did not consult with CBIZ CPAs regarding (i) the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s consolidated financial statements, or (ii) any matter that was either the subject of a disagreement (as described in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) or a reportable event (as described in Item 304(a)(1)(v) of Regulation S-K and the related instructions).

The reports of Marcum regarding the Company’s consolidated financial statements for the fiscal years ended December 31, 2024 and 2023, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, did not contain any adverse opinion or disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope, or accounting principles.

During the fiscal years ended December 31, 2024 and 2023, and through April 28, 2025, the date of Marcum’s termination, there were (a) no disagreements (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) between the Company and Marcum on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures, which disagreements, if not resolved to the satisfaction of Marcum, would have caused Marcum to make reference to such disagreement in its reports and (b) no “reportable events” (as defined in Item 304(a)(1)(v) of Regulation S-K and the related instructions), except for the material weaknesses in internal control over financial reporting (A) first identified during 2024 related to the review and consolidation in the financial statements of certain proprietary funds that represent variable interest entities, which continued to exist at December 31, 2024 and; (B) first identified during 2023 related to (1) producing timely account reconciliations and valuations of certain significant accounts, including certain intercompany and related party accounts and related elimination entries, (2) a lack of segregation of duties in certain areas of the financial reporting process, including a lack of adequate supervisory review of technical accounting implementations, lack of IT general controls over certain third-party systems, conclusions over critical accounting estimates, and review of the consolidated financial statements, and (3) insufficient supervisory review and approval of key controls over disbursements and accounts payable, which continued to exist at December 31, 2024.

The Company provided Marcum with a copy of this Current Report on Form 8-K prior to its filing with the U.S. Securities and Exchange Commission (the “SEC”) and requested that Marcum furnish the Company with a letter addressed to the SEC, pursuant to Item 304(a)(3) of Regulation S-K, stating whether it agrees with the above statements and, if it does not agree, the respects in which it does not agree. A copy of the letter, dated April 29, 2025, is filed as Exhibit 16.1 (which is incorporated by reference herein) to this Current Report on Form 8-K.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits: The following exhibits are filed as part of this report:


Exhibit No.		Description
16.1		Letter from Marcum LLP to the Securities and Exchange Commission dated April 29, 2025
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.


			HORIZON KINETICS HOLDING CORPORATION

Date:	April 29, 2025	By:	/s/ Jay Kesslen
			Jay Kesslen General Counsel

Horizon Kinetics Holding Corp 8-K