Ariel Investments (OSW) Discloses 15.2% Ownership; 15.4M Shares

Rhea-AI Filing Summary

OneSpaWorld Holdings Ltd ownership disclosure: Ariel Investments, LLC reports beneficial ownership of 15,432,414 shares of Common Stock, representing 15.2% of the class as of 03/31/2026. The filing shows sole voting power for 13,537,401 shares and sole dispositive power for 15,432,414 shares. Ariel states its adviser clients have the right to receive dividends or proceeds on the reported securities, and that none of those clients holds an economic interest exceeding 5%. The amendment is signed by James Prescott, Vice President, Compliance, on 05/14/2026.

Insights

Institutional Ownership Analyst

Ariel holds a sizable 15.2% stake in OneSpaWorld as of 03/31/2026.

The filing reports 15,432,414 shares beneficially owned and 13,537,401 shares with sole voting power. This signals a substantial passive stake under Schedule 13G/A disclosure norms rather than an activist Schedule 13D filing.

Voting and dispositive power are disclosed explicitly; subsequent filings could show changes. Timing: the beneficial ownership figure is anchored to 03/31/2026 and the amendment was signed 05/14/2026.

Compliance & Corporate Governance Specialist

Adviser-client allocation and economic-interest disclosure are clarified.

The statement notes adviser clients have rights to dividends/proceeds, while none of those clients holds >5% economic interest. This clarifies that Ariel reports aggregated voting/dispositive authority for managed accounts rather than a single dominant client.

Practical implication: the filing documents control metrics (voting/dispositive power) without asserting a change in strategy or plans.

Key Figures

Beneficial ownership: 15,432,414 shares Percent of class: 15.2% Sole voting power: 13,537,401 shares

3 metrics

Beneficial ownership 15,432,414 shares as of <date>03/31/2026</date>

Percent of class 15.2% percent of Common Stock

Sole voting power 13,537,401 shares sole power to vote or to direct the vote

Key Terms

Schedule 13G/A, Beneficially owned, Sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 11 ) OneSpaWorld Holdings Ltd ..."

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 15,432,414"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole dispositive power regulatory

"(iii) Sole power to dispose or to direct the disposition of: 15,432,414"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 11)

OneSpaWorld Holdings Ltd

(Name of Issuer)

Common Stock SH

(Title of Class of Securities)

P73684113

(CUSIP Number)

03/31/2026

(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)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): P73684113

1

Names of Reporting Persons

Ariel Investments, 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 13,537,401.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 15,432,414.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

15,432,414.00

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)

15.2 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: OneSpaWorld Holdings Ltd
(b)	Address of issuer's principal executive offices: Pineapple Business Park, Airport Industrial Park, P.O. Box N-624, Nassau, Island of New Providence, Commonwealth of The Bahamas
Item 2.
(a)	Name of person filing: Ariel Investments, LLC
(b)	Address or principal business office or, if none, residence: 200 E. Randolph Street, Suite 2900, Chicago, 60601, United States
(c)	Citizenship: DELAWARE
(d)	Title of class of securities: Common Stock SH
(e)	CUSIP No.: P73684113
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: 15,432,414
(b)	Percent of class: 15.2 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 13,537,401
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 15,432,414
	(iv) Shared power to dispose or to direct the disposition of: 0
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. Ariel Investments, LLC's adviser clients have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, all securities reported upon this Schedule. None of Ariel Investments, LLC's clients have an economic interest in more than 5% of the subject securities reported upon this Schedule.
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.

Ariel Investments, LLC

Signature:	James Prescott
Name/Title:	Vice President, Compliance
Date:	05/14/2026

FAQ

What stake does Ariel Investments report in OneSpaWorld (OSW)?

Ariel Investments reports beneficial ownership of 15,432,414 shares, equal to 15.2% of OneSpaWorld's Common Stock as of 03/31/2026. The filing lists 13,537,401 shares with sole voting power.

Does Ariel control voting or disposition of the OneSpaWorld shares?

The filing shows Ariel has sole voting power over 13,537,401 shares and sole dispositive power over 15,432,414 shares. These powers are stated in the Schedule 13G/A ownership section.

Are Ariel’s clients the economic owners of these OneSpaWorld shares?

Ariel states its adviser clients have the right to receive dividends or proceeds from the reported securities, and that no single client has an economic interest exceeding 5% of the class.

When was the Schedule 13G/A amendment for OSW signed?

The amendment is signed by James Prescott, Vice President, Compliance, on 05/14/2026, and it reports beneficial ownership as of 03/31/2026.