OneWater 10% owners sell 56K shares at $12.10

Rhea-AI Filing Summary

OneWater Marine Inc. (ONEW) reports that members of a 10% owner group associated with Teresa D. Bos and Peter H. Bos Jr. sold 56,429 shares of Class A common stock on September 4, 2026, in open-market or private transactions at a weighted average price of $12.10 per share. The sold shares were held jointly by Mr. and Mrs. Bos. Following this sale, they report 780,574 shares held jointly, plus indirect holdings of 880,503 shares through Legendary Investments, LLC and 4,000 shares through Legendary, LLC, while disclaiming beneficial ownership except to the extent of any pecuniary interest.

Insider Trade Summary

Net Seller: 56,429 shares

Net Sell 3 txns

Insider Bos Teresa D., Bos Peter H. Jr., Legendary Investments, LLC/FL, Legendary, LLC

Role 10% Owner | 10% Owner | Insider | Insider

Sold 56,429 shs ($683K)

Type	Security	Shares	Price	Value
Sale	Class A common stock, par value $0.01 F2, F1, F5	56,429	$12.10	$683K
holding	Class A common stock, par value $0.01 F3, F5	--	--	--
holding	Class A common stock par value $0.01 F4, F5	--	--	--

Holdings After Transaction: Class A common stock, par value $0.01 — 780,574 shares (Direct); Class A common stock, par value $0.01 — 880,503 shares (Indirect, By Legendary Investments, LLC); Class A common stock par value $0.01 — 4,000 shares (Indirect, By Legendary, LLC)

Footnotes (5)

1. F1. Represents shares held jointly with spouse.
2. F2. The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.36, inclusive. The Reporting Person undertakes to provide to OneWater Marine Inc., any security holder of OneWater Marine Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range.
3. F3. Represents shares held directly by Legendary Investments, LLC, a wholly owned subsidiary of Legendary, LLC, which is controlled by Mr. and Mrs. Bos.
4. F4. Represents shares held directly by Legendary, LLC, which is controlled by Mr. and Mrs. Bos.
5. F5. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

Key Figures

Shares sold: 56,429 shares Weighted average sale price: $12.10 per share Direct holdings after transaction: 780,574 shares +2 more

5 metrics

Shares sold 56,429 shares Class A common stock sold on September 4, 2026

Weighted average sale price $12.10 per share Sales on September 4, 2026, with trades between $12.00 and $12.36

Direct holdings after transaction 780,574 shares Shares held jointly by Mr. and Mrs. Bos following the sale

Indirect holdings via Legendary Investments, LLC 880,503 shares Class A common stock held by Legendary Investments, LLC, controlled by Mr. and Mrs. Bos

Indirect holdings via Legendary, LLC 4,000 shares Class A common stock held by Legendary, LLC, controlled by Mr. and Mrs. Bos

Key Terms

weighted average price, beneficial ownership, pecuniary interest, Section 16

4 terms

weighted average price financial

"The price reported in column 4 is a weighted average price, rounded"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

beneficial ownership regulatory

"disclaims beneficial ownership of the securities reported herein except"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"except to the extent of their pecuniary interest therein, if any"

Section 16 regulatory

"for purposes of Section 16 of the Securities and Exchange Act"

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

FAQ

What insider transaction did OneWater Marine (ONEW) report in this Form 4?

The filing reports a sale of 56,429 shares of OneWater Marine Class A common stock on September 4, 2026 by a 10% owner group associated with Teresa D. Bos and Peter H. Bos Jr., executed as open-market or private transactions.

At what price were the 56,429 ONEW shares sold by the insider group?

The 56,429 shares were sold at a weighted average price of $12.10 per share, with individual trades executed in a range of $12.00 to $12.36 per share, according to the weighted-average price footnote.

How many OneWater Marine (ONEW) shares does the reporting group hold directly after the sale?

After the reported sale, the group reports 780,574 shares of OneWater Marine Class A common stock held jointly by Mr. and Mrs. Bos as a direct holding.

What indirect OneWater Marine (ONEW) holdings are reported through Legendary entities?

The filing reports 880,503 shares held indirectly through Legendary Investments, LLC, a wholly owned subsidiary of Legendary, LLC, and 4,000 shares held indirectly through Legendary, LLC, both controlled by Mr. and Mrs. Bos.

Did the OneWater Marine (ONEW) insider trades use a Rule 10b5-1 trading plan?

The filing indicates that no Rule 10b5-1 plan is reported; the document-level checkbox for such a plan is not marked as applicable to these transactions.

Do the reporting persons claim full beneficial ownership of all reported ONEW shares?

No. The reporting persons disclaim beneficial ownership of the securities reported, except to the extent of any pecuniary interest, and state that the report should not be deemed an admission of beneficial ownership for any purpose.

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Available on EDGAR 09/08/2026 - 05:53 PM Accepted by SEC EDGAR 09/08/2026 - 05:52 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

X

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bos Teresa D.

(Last) (First) (Middle)

4471 LEGENDARY DRIVE

(Street)

DESTIN FLORIDA 32541

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
OneWater Marine Inc. [ ONEW ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)	X	Other (specify below)
			Member of 10% owner group

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A common stock, par value $0.01	09/04/2026		S		56,429	D	$12.1(2)	780,574(1)(5)	D
Class A common stock, par value $0.01								880,503(3)(5)	I	By Legendary Investments, LLC
Class A common stock par value $0.01								4,000(4)(5)	I	By Legendary, LLC

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person^*

Bos Teresa D.

(Last) (First) (Middle)

4471 LEGENDARY DRIVE

(Street)

DESTIN FLORIDA 32541

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)	X	Other (specify below)
			Member of 10% owner group

1. Name and Address of Reporting Person^*

Bos Peter H. Jr.

(Last) (First) (Middle)

4471 LEGENDARY DRIVE

(Street)

DESTIN FLORIDA 32541

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)	X	Other (specify below)
			Member of 10% owner group

1. Name and Address of Reporting Person^*

Legendary Investments, LLC/FL

(Last) (First) (Middle)

4471 LEGENDARY DRIVE

(Street)

DESTIN FLORIDA 32541

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Member of 10% owner group

1. Name and Address of Reporting Person^*

Legendary, LLC

(Last) (First) (Middle)

4471 LEGENDARY DRIVE

(Street)

DESTIN FLORIDA 32541

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Member of 10% owner group

Explanation of Responses:

1. Represents shares held jointly with spouse.

2. The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.36, inclusive. The Reporting Person undertakes to provide to OneWater Marine Inc., any security holder of OneWater Marine Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range.

3. Represents shares held directly by Legendary Investments, LLC, a wholly owned subsidiary of Legendary, LLC, which is controlled by Mr. and Mrs. Bos.

4. Represents shares held directly by Legendary, LLC, which is controlled by Mr. and Mrs. Bos.

5. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

	/s/ Tom Lynn, attorney-in-fact for Teresa D. Bos	09/08/2026
	s/ Tom Lynn, attorney-in-fact for Peter H. Bos Jr.	09/08/2026
	/s/ Tom Lynn, attorney-in-fact for Legendary Investments, LLC	09/08/2026
	s/ Tom Lynn, attorney-in-fact for Legendary, LLC	09/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)