[SCHEDULE 13G/A] OneWater Marine Inc. SEC Filing

Rhea-AI Filing Summary

Gilder Gagnon Howe & Co. LLC (GGHC) filed Amendment No. 6 to Schedule 13G reporting ownership of 862,085 Class A shares of OneWater Marine Inc. (NASDAQ: ONEW) as of 30 June 2025. The position represents 5.3 % of the outstanding class, crossing the 5 % threshold that requires public disclosure.

GGHC, a registered broker-dealer, reports no sole or shared voting power but retains shared dispositive power over the entire stake, indicating the shares are likely held in customer or discretionary accounts rather than for strategic control. The filer certifies the investment is made in the ordinary course of business with no intent to influence management or pursue a change of control. No other entities or group members are disclosed, and the certification is signed by Chief Compliance Officer Laura Esposito on 14 July 2025.

Positive

• Institutional ownership above 5 % by Gilder Gagnon Howe & Co. may enhance share liquidity and attract additional investor attention.

Negative

• None.

Insights

Securities Analyst

TL;DR: Passive 5.3 % stake by GGHC signals institutional interest but no control ambitions—neutral market impact.

The 13G/A reveals that GGHC holds 862,085 ONEW shares, giving it 5.3 % beneficial ownership. Because GGHC disclaims voting power and files under Rule 13d-1(b), the position is passive and unlikely to drive governance changes or activist activity. While the additional institutional presence can improve liquidity and raise the company’s profile, it does not materially alter the investment thesis or fundamentals. Investors should view the disclosure as a data point on shareholder mix rather than a catalyst.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 6)

OneWater Marine Inc.

(Name of Issuer)

Class A Common Stock, par value $0.01 per share

(Title of Class of Securities)

68280L101

(CUSIP Number)

06/30/2025

(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. 68280L101

1

Names of Reporting Persons

GILDER GAGNON HOWE & CO 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

NEW YORK

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 862,085.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

862,085.00

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)

5.3 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

Item 1.
(a)	Name of issuer: OneWater Marine Inc.
(b)	Address of issuer's principal executive offices: 6275 LANIER ISLANDS PARKWAY, BUFORD, GEORGIA, 30518
Item 2.
(a)	Name of person filing: Gilder, Gagnon, Howe Co., LLC
(b)	Address or principal business office or, if none, residence: 475 10th Avenue, New York, NY 10018
(c)	Citizenship: New York
(d)	Title of class of securities: Class A Common Stock, par value $0.01 per share
(e)	CUSIP No.: 68280L101
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: 862,085
(b)	Percent of class: 5.3 %
(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: 0
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 862,085
Item 5.	Ownership of 5 Percent or Less of a Class.
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. One or more persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the class A common stock of OneWater Marine Inc. No one other person's interest in the Class A common stock of OneWater Marine Inc. is more than five percent of the total outstanding class A common stock.
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.

GILDER GAGNON HOWE & CO LLC

Signature:	Laura Esposito
Name/Title:	Chief Compliance Officer
Date:	07/14/2025

FAQ

How many OneWater Marine (ONEW) shares does Gilder Gagnon Howe & Co. LLC own?

The filing reports 862,085 Class A shares beneficially owned.

What percentage of OneWater Marine’s outstanding stock is represented by this stake?

Gilder Gagnon Howe & Co. LLC holds 5.3 % of the Class A common stock.

Does the reporting person have voting power over the shares?

No. The Schedule 13G shows 0 shares with sole or shared voting power; only shared dispositive power is reported.

When is the event date and filing date of this Schedule 13G/A?

Event date: 30 June 2025; signature date: 14 July 2025.

Why was this Schedule 13G/A filed?

Because the beneficial ownership exceeded the 5 % threshold, requiring disclosure under Section 13(d)/(g) of the Exchange Act.