MarineMax major holder fully exits position

Former more-than-5% holders linked to PPF Group report a complete exit from MarineMax common stock after selling Matsuba Limited on September 18, 2026.

Rhea-AI Filing Summary

MARINEMAX INC (HZO) is the subject of an amended Schedule 13D filing in which former significant shareholders Renata Kellnerova, AMALAR HOLDING s., PPF Group a.s., and Vox Ventures B.V. report that they no longer beneficially own any shares of the company’s common stock.

The group divested Matsuba Limited, the direct holder of the MarineMax shares and a former wholly owned subsidiary of Vox Ventures, in a negotiated sale to an unaffiliated third party on September 18, 2026. Following this transaction, the reporting persons state they hold 0 shares, representing 0.00% of the outstanding common stock, and this amendment serves as their exit filing.

Key Figures

Beneficial ownership after transaction: 0 shares of common stock Percent of class after transaction: 0.00% Event date: September 18, 2026 +1 more

4 metrics

Beneficial ownership after transaction 0 shares of common stock Reported by each reporting person as of Amendment No. 6

Percent of class after transaction 0.00% MarineMax common stock beneficially owned by the reporting persons

Event date September 18, 2026 Date of the divestiture of Matsuba Limited to an unaffiliated third party

Former ownership threshold More than 5% Reporting persons state they ceased to be beneficial owners of more than five percent of MarineMax common stock

Key Terms

beneficially own, Schedule 13D, dispositive power, Joint Filing Agreement, +1 more

5 terms

beneficially own financial

"the Reporting Persons do not beneficially own any shares of Common Stock"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

Schedule 13D regulatory

"If the filing person has previously filed a statement on Schedule 13D"

A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.

dispositive power financial

"do not have the power to vote or direct the vote or dispose or direct the disposition"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

Joint Filing Agreement regulatory

"The Reporting Persons are party to a Joint Filing Agreement dated August 24, 2026"

exit filing regulatory

"This Amendment No. 6 to the constitutes the Reporting Persons' "exit filing""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does this Schedule 13D/A mean for MARINEMAX INC (HZO)?

It reports that Renata Kellnerova, AMALAR HOLDING s., PPF Group a.s., and Vox Ventures B.V. no longer beneficially own any MarineMax common stock after divesting Matsuba Limited, the direct holder of the shares.

When did the reporting group exit its position in MARINEMAX INC (HZO)?

The reporting persons state that on September 18, 2026 they completed the divestiture of Matsuba Limited to an unaffiliated third party, after which they ceased to beneficially own MarineMax common stock.

How many MARINEMAX INC (HZO) shares do the reporting persons now own?

They report 0 shares of MarineMax common stock beneficially owned, with total 0.00% of the outstanding class, and no voting or dispositive power over any shares.

Who were the reporting persons in this MARINEMAX INC (HZO) Schedule 13D/A?

The filing is made by Renata Kellnerova, AMALAR HOLDING s., PPF Group a.s., and Vox Ventures B.V., which were previously grouped under a Joint Filing Agreement regarding MarineMax shares.

What is Matsuba Limited’s role in the MARINEMAX INC (HZO) stake?

Matsuba Limited was previously reported as the direct holder of MarineMax common stock and was a wholly owned subsidiary of Vox Ventures. On September 18, 2026, the reporting persons divested Matsuba in a negotiated sale to an unaffiliated third party.

Why is this MARINEMAX INC (HZO) filing called an exit filing?

The reporting persons state that as of September 18, 2026 they ceased to be beneficial owners of more than five percent of MarineMax common stock, and this Amendment No. 6 is characterized as their “exit filing” in the security.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/21/2026 - 08:00 PM Accepted by SEC EDGAR 09/21/2026 - 08:00 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 6)

MARINEMAX INC

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

567908108

(CUSIP Number)

Scott Levi
White & Case LLP, 1221 Avenue of the Americas
New York, NY, 10020-1095
1-212-819-8320

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

09/18/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): 567908108

1

Name of reporting person

Renata Kellnerova

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

CZECH REPUBLIC

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

0.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.00 %

14

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13D

CUSIP Number(s): 567908108

1

Name of reporting person

AMALAR HOLDING s.r.o.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

CZECH REPUBLIC

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

0.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0 %

14

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13D

CUSIP Number(s): 567908108

1

Name of reporting person

PPF Group a.s.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

CZECH REPUBLIC

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

0.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0 %

14

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13D

CUSIP Number(s): 567908108

1

Name of reporting person

Vox Ventures B.V.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

NETHERLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

0.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0 %

14

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, par value $0.001 per share
(b)	Name of Issuer: MARINEMAX INC
(c)	Address of Issuer's Principal Executive Offices: 501 Brooker Creek, Boulevard, Oldsmar, FLORIDA , 34677.
Item 2.	Identity and Background
(a)	Item 2(a) of the Schedule 13D is hereby amended and restated by replacing it with the following: This Schedule 13D is being filed by the following persons (each a "Reporting Person" and, collectively, the "Reporting Persons"): Renata Kellnerova, a citizen of the Czech Republic; AMALAR HOLDING s.r.o., a limited liability company organized under the laws of the Czech Republic ("Amalar"); PPF Group a.s., a joint stock company organized under the laws of the Czech Republic ("PPF Group"), which is the successor by cross-border conversion to PPF Group N.V., a public limited liability company formerly organized under the laws of the Netherlands; and Vox Ventures B.V., a private limited liability company organized under the laws of the Netherlands ("Vox Ventures"). Vox Ventures is a wholly-owned subsidiary of PPF Group. Amalar is the majority shareholder of PPF Group. Mrs. Kellnerova, in her capacity as the majority owner of Amalar, has the ability to indirectly control the decisions of Amalar regarding the vote and disposition of securities held by Amalar. The Reporting Persons are party to a Joint Filing Agreement dated August 24, 2026, pursuant to Rule 13d-1(k) under the Act, a copy of which was previously filed as Exhibit 7.1 to Amendment No. 4 to the Schedule 13D.
(b)	Item 2(b) of the Schedule 13D is hereby amended and restated by replacing it with the following: The principal business address of Mrs. Kellnerova is c/o PPF Group a.s., Evropska 2690/17, 160 41 Prague 6, Czech Republic. The address of the principal office of Amalar is Evropska 2690/17, 160 41 Prague 6, Czech Republic. The address of the principal office of PPF Group is Evropska 2690/17, 160 41 Prague 6, Czech Republic. The address of the principal office of Vox Ventures is Zuidplein 168, 1077XV Amsterdam, Netherlands.
(c)	Item 2(c) of the Schedule 13D is hereby amended and restated by replacing it with the following: Mrs. Kellnerova's principal occupation is her position as majority owner of Amalar. The principal business of Amalar is to act as a holding company for certain investments of Mrs. Kellnerova and her daughters. The principal business of PPF Group is investment in multiple market segments such as financial services, telecommunications, media, real estate, marine leisure, e-commerce, mobility and mechanical engineering and biotechnology in Europe, the United States and across Asia. The principal business of Vox Ventures is to act as a holding company for certain investments of PPF Group.
(d)	Item 2(d) of the Schedule 13D is hereby amended and restated by replacing it with the following: None of the Reporting Persons has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).
(e)	Item 2(e) of the Schedule 13D is hereby amended and restated by replacing it with the following: None of the Reporting Persons was, during the last five years, a party to a civil proceeding of a judicial or administrative body of competent jurisdiction resulting in a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws, or finding any violation with respect to such laws.
(f)	Item 2(f) of the Schedule 13D is hereby amended and restated by replacing it with the following: See Item 2(a) above and the cover pages of this Schedule 13D.
Item 4.	Purpose of Transaction
	Item 4 of the Schedule 13D is hereby amended and supplemented to include the following: On September 18, 2026, the Reporting Persons divested of Matsuba Limited, a company organized under the laws of Cyprus ("Matsuba"), in a negotiated sale to an unaffiliated third party. As previously reported on the Schedule 13D, Matsuba is the direct holder of the shares of Common Stock, and prior to the divestiture, was a wholly-owned subsidiary of Vox Ventures. As a result, as of the date of this Amendment No. 6 to the Schedule 13D, the Reporting Persons do not beneficially own any shares of Common Stock of the Issuer.
Item 5.	Interest in Securities of the Issuer
(a)	Item 5(a) of the Schedule 13D is hereby amended and restated by replacing it with the following: Due to the transaction described in Item 4 above, as of the date of this Amendment No. 6, the Reporting Persons do not beneficially own any shares of Common Stock of the Issuer.
(b)	Item 5(b) of the Schedule 13D is hereby amended and restated by replacing it with the following: As described in Item 5(a) above, as of the date of this Amendment No. 6, the Reporting Persons do not beneficially own, and thus do not have the power to vote or direct the vote or dispose or direct the disposition of, any shares of Common Stock of the Issuer.
(c)	Item 5(c) of the Schedule 13D is hereby amended and restated by replacing it with the following: Other than the transaction described in Item 4 above, there have been no transactions by the Reporting Persons in the Common Stock effected since the filing of Amendment No. 5 to the Schedule 13D.
(d)	Item 5(d) of the Schedule 13D is hereby amended and restated by replacing it with the following: To the best knowledge of the Reporting Persons, no one other than the Reporting Persons and their respective members, shareholders and affiliates has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Common Stock reported herein as beneficially owned by the Reporting Persons.
(e)	Item 5(e) of the Schedule 13D is hereby amended and restated by replacing it with the following: Upon completion of the transaction described in Item 4 above, as of September 18, 2026, the Reporting Persons ceased to be beneficial owners of more than five percent of the outstanding Common Stock of the Issuer. This Amendment No. 6 to the Schedule 13D constitutes the Reporting Persons' "exit filing" in the Common Stock of the Issuer.

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.

Renata Kellnerova

Signature:	/s/ Lubomir Kral
Name/Title:	Lubomir Kral, Attorney-in-Fact
Date:	09/21/2026

AMALAR HOLDING s.r.o.

Signature:	/s/ Lubomir Kral
Name/Title:	Lubomir Kral, Attorney-in-Fact
Date:	09/21/2026

PPF Group a.s.

Signature:	/s/ Lubomir Kral
Name/Title:	Lubomir Kral, Attorney-in-Fact
Date:	09/21/2026

Vox Ventures B.V.

Signature:	/s/ Lubomir Kral
Name/Title:	Lubomir Kral, Attorney-in-Fact
Date:	09/21/2026